power tong mark 5 made in china
XQ140 micro-marking and no-marking hydraulic power tongs is a special equipment and open power tongs which is applicable to make up or break out 41/2"-51/2" casing during oil field work over operation. Master and back tong device adopts jaw plate type multi-point clamping mechanism.Can choose contour coated rig dies or pyramid tooth , to ensure the column minimum damage, and can improve the pipe thread connection quality, reduce due to improper work over pipe accident etc..
1. The tongs head is the open structure which is quick and convenient for entering and retreating working position. The integral tong head has good hardness and rigidity.
2. Master tong is roller climbing two jaw plate structure,can install arc tooth die ,the contact surface is more larger and clamp no deformation, The assembly and disassembly is very convenient. The optimum tangent-diameter ratio design ensures reliable clamping and easy slope retreating.The back tong is the three-jaw-plate structure pushed by hydraulic cylinder. The structure is simple and the clamping is reliable; The minimum damage to the tubular column can be ensured, and the main body of the pipe string can be clamped.
3. Only need to change contour coated rig dies(Low stress trace in the pipe column, no liner strip trace, short for Non-Marking die, suitable for tubing as 3Cr、9Cr、13Cr、22Cr、25Cr)or Pyramid Tooth(Micro liner mark in the pipe column, and short for Micro-Marking die) could lead to the different protective effects.
6. Master and back tong adopt integral frame structure,back tong is floating connection,The master and back tong adjustable distance, reduce the damage of pipe string shackle;
7. Use with double pump hydraulic station,allows initial makeup speeds of 15~25rpm,makeup speed is reduced as the shoulder is approached,drop to as low as 1-6rpm.
Versatility is the name of the game here as this tong works well whether powered by a workover rig or a portable casing tong power unit. Options include manual backup or cam-type hydraulic backups.
TThe Tri-Grip® Backup is the industry standard for reliable make-up and break-out of tubular connections that are optionally supplied with Eckel tongs. Utilizing two hydraulic cylinders and a three head arrangement ensures a slip-free operation. The backup is suspended at an adjustable level below the power tong employing three hanger legs and allows the backup to remain stationary while the power tong moves vertically to compensate for the connection"s thread travel. The Tri-Grip® uses two pivoting heads and one stationary. The Eckel Tri-Grip® Backup has exceptional gripping capabilities with Rig Dies when running drill pipe or optional Eckel Wrap-Around True-Grit® dies or Pyramid Fine Tooth dies for making up other types of tubular.
2018 marks the 60th anniversary for Eckel. We are the oldest continuous leading manufacturer of world-class hydraulic power tongs and trusted for reliability, safety and high performance.
Eckel 9-7/8 HS-55 Tubing / Casing providing high torque and high continuous rotational torque that you can trust within a compact operational footprint featuring SPACE SAVER™ technology.
Providing a maximum torque of 75,000 ft-lbs (101686 Nm) and 50,000 ft-lbs (67790.9 Nm) continuous rotational torque; well suited for today"s high torque premium casing connections.
The Eckel Model 25 Hydra-Shift® HS-85 features a two-speed motor with two-speed gear train, producing 60,000, 80,000 and 125,000 ft-lb of torque respectively in low-low, at 2,500 psi. This tong easily handles ultra-heavy casing strings from 9 5/8 inches to 25 inches.
The Eckel Model 25 Hydra-Shift® HT-200 Tri-Grip®introduced features a two-speed motor with two-speed gear train, producing 200,000 ft-lb of torque respectively in low-low, at 2,500 psi. This tong easily handles ultra-heavy casing strings from 9 5/8 inches to 25 inches - featuring a three head Tri-Grip®biting system design which like the Tri-Grip®New Revised Version Backup encompasses the tubular to apply an evenly distributed gripping force. The additional head in the tong reduces the risk of radial deformation, die penetration, marking, and wear of the tubular by 1/3 at extreme torques...
The new 7.25 HS HT-80 for Drill Pipe and High Torque Casing Tong takes on the toughest job with make-up and break-out of drill pipe, drill collars and high torque casing with a maximum torque of 80,000 ft-lbs. The 7.25 HS HT-80 is available with a two-speed Hydra-Shift® motor coupled with a two-speed gear train providing (4) torque levels and (4) RPM speeds. The variable speeds can slowly or quickly spin tubulars 2-3/8 through 7 1/4 inch as necessary. Having exceptional gripping capabilities with rig dies for drill pipe or wrap-around dies that securely encompass the tubular limit potential for damage. The 7.25 HS HT-80 is also available with either Eckel Pyramid Fine Tooth dies or True-Grit dies. The 7.25 HS HT-80 is another of our tongs models that exceeds the competition in its class.
Extremely popular among the most successful of pipe handlers, the Model 5 1/2 UHT combines high torque (up to 25,000 ft-lbs) with a wide capacity range. Ideal for handling tubing, casing and small drill pipe. Options include manual backup or Tri-Grip®backups.
The Eckel Model 14 Hydra-Shift® handles pipe from 4 inches to 14 inches and incoporates the Hydra-Shift® technology which provides smoother operating environment and a wider selection of torque/RPM"s that are available to the operator. The 14 Hydra-Shift® is capable of delivering 35,000 ft-lb of torque in low-speed, low-gear. Also available with hydraulic Tri-Grip®backup.
The Eckel Model 30 Hydra-Shift® features a two-speed motor with a two-speed gear train, producing 130,000 ft-lb of torque in low-low at 2,500 psi. Weight 9,000 pounds, this tong easily handles ultra heavy casing strings from 14 inches to 30 inches.
The Eckel Model 14 Hydra-Shift® handles pipe from 4 inches to 14 inches and incoporates the Hydra-Shift® technology which provides smoother operating environment and a wider selection of torque/RPM"s that are available to the operator. The 14 Hydra-Shift® is capable of delivering 35,000 ft-lb of torque in low-speed, low-gear. Also available with hydraulic Tri-Grip®backup.
Except for added torque (up to 24,000 ft-lb) and expanded pipe capacity (from 4 to 13 3/8 inches), the 13 3/8 Standard tong offers the same basic engineering and design as the smaller, lighter Model 10 3/4. Highly recommended where applications demand the ultimate in size range and torque output.
For casing up to 22 inches, here"s a tong that has strong torqueing ability and will handle pipe sizes down to 7 inch. The tong utilizes a two-speed motor and a two-speed gear train, allowing the operator to correctly adjust the tong for the optimum torque and RPM needed for the current application. Maximum torque for the 22 Hydra-Shift® is 80,000 ft-lb.
For casing up to 20 inches, here"s a tong that combines surprising speed with an ability to handle smaller sizes economically (as small as 7 inches). The 20 Standard reaches peak efficiency at just 38 horse power input, thus requiring no "souped-up" power unit. Available torque: 42,000 ft-lb.
An excellent choice where applications demand the combination of size range and high torque output, the Eckel Model 14 UHT handles pipe from 4 inches to 14 inches. Upgraded in design and performance over the Model 14 HS, this tong is capable of delivering 65,000 ft-lb of torque. Also, available with Wedge Drive Tri-Grip®backup which handles pipe from 4 inches to 15.5 inches.
When application demand a wide range of sizes, this tong handles pipe sizes 2 3/8 inches all the way to 7 5/8. Built around the 7 5/8 Standard, the 7 5/8 HS HD provides a thicker rotary gear for more added strength, an additional idler gear, a larger pinion gear, and stronger bearings for load bearing capacity and durability.
When application demand a wide range of sizes, this tong handles pipe sizes 2 3/8 inches all the way to 7 5/8. Built around the 7 5/8 Standard, the 7 5/8 Heavy Duty provides a thicker rotary gear for more added strength, an additional idler gear, a larger pinion gear, and stronger bearings for load bearing capacity and durability.
The Eckel Model 25 Hydra-Shift® features a two-speed motor with two-speed gear train, producing 60,000 ft-lb of torque in low-low, at 2,500 psi. Weighing 6,290 pounds, this tong easily handles ultra-heavy casing strings from 9 5/8 inches to 25 inches.
A maximum torque up to 25,000 ft-lb and a small foot print design this tong meets your application requirements. A two speed mechanical shift transmission in conjunction with the two speed Hydra-Shift® motor provides the operator a flexible choice of torque and rpm"s to work with during make-up or breakout. The 9 5/8 Hydra-Shift® HD is capable of handling a range of pipe from 2 3/8 inches to 9 5/8 inches.
Extremely popular among the most successful of pipe handlers, the Model 5 1/2 UHT combines high torque (up to 25,000 ft-lbs) with a wide capacity range. Ideal for handling tubing, casing and small drill pipe. Options include manual backup or Tri-Grip®backups.
The Eckel 870 DPT combine power tong and Wedg Drive Tri-Grip®Backup, providing a single piece of equipment to replace several...one smooth continuous operation instead of numerous time-wasting steps at each connection...and a quick, safe means of tripping, replacing methods that endanger crew members and pipe string a like. For drill strings up to 8 inch collars, the model 870 offers over 75,000 ft-lb of torque for break-out and make-up operations, plus ample speed for spinning joints.
The Eckel Model 24 UHT features a two-speed motor with single-speed gear train, producing 95,000 ft-lb of torque in low speed, 25,000 ft-lb in high, both at 2,500 psi. Weighing 8,000 pounds, this tong easily handles ultra-heavy casing strings from 13 3/8 inches to 24 inches.
Except for added torque (up to 24,000 ft-lb) and expanded pipe capacity (from 4 to 13 3/8 inches), the 13 3/8 Standard tong offers the same basic engineering and design as the smaller, lighter Model 10 3/4. Highly recommended where applications demand the ultimate in size range and torque output.
An excellent choice where applications demand the combination of size range and high torque output, the Eckel Model 14 UHT handles pipe from 4 inches to 14 inches. Upgraded in design and performance over the Model 14 HS, this tong is capable of delivering 65,000 ft-lb of torque. Also, available with Wedge Drive Tri-Grip®backup which handles pipe from 4 inches to 15.5 inches.
When applications require the combination of size and torque up to 18,000 ft-lbs, the Eckel 9 5/8 Hydra-Shift® (Narrow Body) meets these requirements. The narrow body design allows this tong to easily operate on smaller rig configurations. A two speed mechanical shift transmission in conjunction with the two speed Hydra-Shift® motor provides the operator a flexible choice of torque and RPM"s to work with during make-up or breakout. The 9 5/8 Hydra-Shift® is capable of handling a range of pipe from 2 3/8 inches to 9 5/8 inches.
When applications require the combination of size and torque up to 18,000 ft-lbs, the Eckel 9 5/8 Hydra-Shift® (Narrow Body) meets these requirements. The narrow body design allows this tong to easily operate on smaller rig configurations. A two speed mechanical shift transmission in conjunction with the two speed Hydra-Shift® motor provides the operator a flexible choice of torque and RPM"s to work with during make-up or breakout. The 9 5/8 Hydra-Shift® is capable of handling a range of pipe from 2 3/8 inches to 9 5/8 inches.
The 14 HS HT Tri-Grip®Tong is used for making up and break out casing and risers. Capable of handling tubulars from 4 in. to 14 in. (101.6 - 355.6 mm) in diameter with a maximum torque of 135,000 ft-lbs (183035.4) of torque capacity. A two-speed Hydra-Shift® motor coupled with a two-speed gear train provides (4) torque levels and (4) RPM speeds. The tong features a three head - Tri-Grip®biting system design which like the Tri-Grip®Backup encompasses the tubular to apply an evenly distributed gripping force. The additional head in the tong reduces the risk of radial deformation, die penetration, marking, and wear of the tubular by 1/3 at extreme torques. The tong performs exceptional gripping capabilities with either Eckel True-Grit dies or Pyramid Fine Tooth dies.
The Eckel Top Drive Casing Tong is a tool developed for use on hydraulic top drive rigs to provide a high quality connection while reducing tubular damage and providing a safer enviroment for crews. With an operating capacity of 4 1/2 inch through 10 5/8 inch, is connected to the output stem of the power swivel. After installation the tong becomes an integral part of the swivel, raising and lowering as a unit and transfering the power swivel"s RPM and torque to the pipe/connection. A guide attached beneath the top drive tong simplifies alignment of the collar within the tong. Once the collar of the pipe is enclosed within the top drive tong, the tong will grip the collar by operating the power swivel. Torque and rotational speed are controlled through the operation of the power swivel. Reversal of the power swivel will cause the tong jaws to release. Tong jaws are spring loaded to retract away from the collar. Utilizing three gripping jaws and a patented Eckel Cam Biting System to grip the pipe collar. The same type of proven biting system found in the industry leading Eckel Power Tongs. These jaws are spaced evenly about the circumference of the collar to provide even distribution of the gripping forces
The Oil & Gas Industry has needed a specialized power tong with an integral backup. This tong is sized small enough and has the right amount of controlable torque output. It is designed so as to properly grip small tubulars such as small macaroni type strings of tubing.
This tong incorporates Eckel"s Hydra-Shift® technology for smooth tranfers of power and speed directly to the tubular. Special built in torque control valving allows the operator to pre-set the maximum desired torque for the connection. This tong also incorporates our new Radial Lock Door. If you are looking for a tong for this lighter type of word look no further.
Except for added torque (up to 24,000 ft-lb) and expanded pipe capacity (from 4 to 13 3/8 inches), the 13 3/8 Standard tong offers the same basic engineering and design as the smaller, lighter Model 10 3/4. Highly recommended where applications demand the ultimate in size range and torque output.
An excellent choice where applications demand the combination of size range and high torque output, the Eckel Model 14 UHT handles pipe from 4 inches to 14 inches. Upgraded in design and performance over the Model 14 HS, this tong is capable of delivering 65,000 ft-lb of torque. Also, available with Wedge Drive Tri-Grip®backup which handles pipe from 4 inches to 15.5 inches.
When applications require the combination of size and torque up to 18,000 ft-lbs, the Eckel 9 5/8 Hydra-Shift® (Narrow Body) meets these requirements. The narrow body design allows this tong to easily operate on smaller rig configurations. A two speed mechanical shift transmission in conjunction with the two speed Hydra-Shift® motor provides the operator a flexible choice of torque and RPM"s to work with during make-up or breakout. The 9 5/8 Hydra-Shift® is capable of handling a range of pipe from 2 3/8 inches to 9 5/8 inches.
Extremely popular among the most successful of pipe handlers, the Model 5 1/2 UHT combines high torque (up to 25,000 ft-lbs) with a wide capacity range. Ideal for handling tubing, casing and small drill pipe. Options include manual backup or Tri-Grip®backups.
An excellent choice where applications demand the combination of size range and high torque output, the Eckel Model 14 UHT handles pipe from 4 inches to 14 inches. Upgraded in design and performance over the Model 14 HS, this tong is capable of delivering 65,000 ft-lb of torque. Also, available with Wedge Drive Tri-Grip®backup which handles pipe from 4 inches to 15.5 inches.
When application demand a wide range of sizes, this tong handles pipe sizes 2 3/8 inches all the way to 7 5/8. Built around the 7 5/8 Standard, the 7 5/8 Heavy Duty provides a thicker rotary gear for more added strength, an additional idler gear, a larger pinion gear, and stronger bearings for load bearing capacity and durability.
Compact Size...Big Torque...if this is what you are looking for in a power tong, look no further. Our 5-1/2 Hydra-Shift® is sized smaller in width than our 5-1/2 Standard model. Like all of our newly developed tongs, the 5-1/2 incorporates the Hydra-Shift® technology, allowing the operator to shift from high speed to low speed without having to manually shift the tong. You will see many years of trouble free operation, not to mention the smoother hydraulic shifting. With two models to choose from, Eckel has the right 5-1/2 Hydra-Shift® for your needs. The 5-1/2 Hydra-Shift® LS with a two-speed motor and a single-speed gear train is the original 5-1/2 Hydra-Shift® which has gained wide acceptance in the industry. Slide heads with rig dies are available for handling drill pipe tool joints.
Special applications and tough requirements demanded that we respond with a new tong designed and built with today"s pipe handling challenges in mind, the 8 5/8 Hydra-Shift® HT. By utilizing a two speed mechanical shift transmission in conjunction with the two speed Hydra-Shift® motor, the operator has a more flexible choice of torque/RPM"s to work with during make-up or break-out. At the beginning of the job, the operator will choose a tong gear ratio that is most appropriate for the current tubular connection and shift the variable speed motor handle into high or low as required. This tong also offers sliding heads with wrap-around dies which provides an evenly applied pressure to the pipe and a greater pipe gripping coverage which in return reduce tubular damage. This tong not only offers the operator the speed options down to the slow speed parameter now demanded by the pipe manufactures and oil companies, it also has the option of speeds of 100 RPM"s when required. Available torque: 40,000 ft-lb
When application demand a wide range of sizes, this tong handles pipe sizes 2 3/8 inches all the way to 7 5/8. Built around the 7 5/8 Standard, the 7 5/8 Heavy Duty provides a thicker rotary gear for more added strength, an additional idler gear, a larger pinion gear, and stronger bearings for load bearing capacity and durability.
When higher torque performance than 10 3/4 Standard is required, the Eckel 10 3/4 Heavy Duty provides the performance you need. Model 10 3/4 Heavy Duty is always in demand where rig floor space is at a minimum. For pipe sizes from 4 to 10 3/4 inches, it delivers a stout 25,000 ft-lb of available torque.
Eckel Tri-Grip®an industry standard for reliable backup in make-up and break-out of tubular connections and optionally supplied with Eckel tongs. Eckel backups utilize hydraulic cylinders and a head arrangement that insures slip-free operation. The hydraulic backup is suspended at an adjustable level below the power tong by means of three hanger legs and allowing the backup to remain stationary while the power tong moves vertically to compensate for thread travel of the connection. The Tri-Grip®uses two pivoting heads and one stationary while the cam backup uses two head to grip tubulars using a head and cam configuration that is similar to the method the tong grips tubulars.
The Eckel Closed Mouth Tongs uses three sliding heads with each head equipped with a wide angle wrap-around die. This provides a maximum gripping area of 342 degrees; on the pipe. The CMT"s utilizes the Hydra-Shift® shifting technology which allows the operator to shift from high to low speed without stopping the tong. Reversing the pipe rotation is effortless and done simply by pulling the tong control in the opposite direction. There is no need to physically take out the jaws and turn them over as there is with other brands of closed head tongs. The CMT"s also come with an optional backup that utilizes the same heads/dies as the tong.
The Model 4 1/2 UHT-13 is rugged, light weight tong capable of providing 8,500 ft-lb of torque at 2,500 PSI. The tong will handle pipe from 1.050 inches to 4 1/2 inches. A notable feature is the Eckel patented quick-change sliding head biting system that compensates for worn or under gauge pipe. Also available with an optional rod package for sizes 5/8 inch through 1-1/8 inches and your choice of manual type or hydraulic type backups.
For casing up to 17 inches, here"s a tong that combines speed and the ability to handle smaller sizes economically. If you are running 17 inch casing, give this tong a try. The 17 Hydra-Shift® features the two-speed motor and the two-speed gear train which allows for multiple selections of torque or RPM, not to mention the smoother operation of the tong.
The Eckel Model 14 Hydra-Shift® handles pipe from 4 inches to 14 inches and incoporates the Hydra-Shift® technology which provides smoother operating environment and a wider selection of torque/RPM"s that are available to the operator. The 14 Hydra-Shift® is capable of delivering 35,000 ft-lb of torque in low-speed, low-gear. Also available with hydraulic Tri-Grip®backup.
The Eckel 3500 Hydra-Shift® DTT (Dual Tubing Tong) provides fast, easy running on dual strings of 3 1/2 inch or smaller tubing. It grabs from the side, or head-on. Go ahead and torque it up; this tong is Eckel tough. And speed shifts are no problem, thanks to a patented Hydra-Shift® concept that eliminates clutching. The Model 3500 DTT Hydra-Shift® is packed with all the features you"ve come to expect from Eckel: quick-change sliding heads, self-aligning open throat.
Except for added torque (up to 24,000 ft-lb) and expanded pipe capacity (from 4 to 13 3/8 inches), the 13 3/8 Standard tong offers the same basic engineering and design as the smaller, lighter Model 10 3/4. Highly recommended where applications demand the ultimate in size range and torque output.
The big, capable Model 36 UHT easily produces 100,000 ft-lb of torque for makeup or break-out operations involving casing in sizes 16 inches through 36 inches. Weighing approximately 13,000 pounds, this casing tong is 81 inches wide and 135 inches in length. A two-speed motor delivers 16 RPM in high, 3 1/2 RPM in low range, both at 70 GPM.
The Eckel 870 DPT combine power tong and Wedg Drive Tri-Grip®Backup, providing a single piece of equipment to replace several...one smooth continuous operation instead of numerous time-wasting steps at each connection...and a quick, safe means of tripping, replacing methods that endanger crew members and pipe string a like. For drill strings up to 8 inch collars, the model 870 offers over 75,000 ft-lb of torque for break-out and make-up operations, plus ample speed for spinning joints.
Eckel has been at the forefront of this developing technology with the development of larger wrap-around type dies for many of its tong models. Wrap-Around Dies are symmetrically spaced from each other at all times insuring an equally distributed load on the tubular.
An excellent choice where applications demand the combination of size range and high torque output, the Eckel Model 14 UHT handles pipe from 4 inches to 14 inches. Upgraded in design and performance over the Model 14 HS, this tong is capable of delivering 65,000 ft-lb of torque. Also, available with Wedge Drive Tri-Grip®backup which handles pipe from 4 inches to 15.5 inches.
The Model 5 1/2 Standard is the first open-throat design in its size range to generate 12,000 ft-lb of available torque. Versatility is the name of the game here as this tong works well whether powered by a workover rig or a portable casing tong power unit. Options include manual backup or cam-type hydraulic backups.
Extremely popular among the most successful of pipe handlers, the Model 5 1/2 UHT combines high torque (up to 25,000 ft-lbs) with a wide capacity range. Ideal for handling tubing, casing and small drill pipe. Options include manual backup or Tri-Grip®backups.
When applications demand a wide range of sizes, the 7-5/8 Standard tong handles pipe sizes 2-1/16 inches all the way to 7-5/8. Its rugged design is based upon knowledge gained from the 5-1/2 model...combining an extremely compact, high torque concept with added versatility. Options include either manual backup or Tri-Grip®backup. Available torque: 15,000 ft-lb
For casing up to 20 inches, here"s a tong that combines surprising speed with an ability to handle smaller sizes economically (as small as 7 inches). The 20 Standard reaches peak efficiency at just 38 horse power input, thus requiring no "souped-up" power unit. Available torque: 42,000 ft-lb.
The Eckel Model 24 UHT features a two-speed motor with single-speed gear train, producing 95,000 ft-lb of torque in low speed, 25,000 ft-lb in high, both at 2,500 psi. Weighing 8,000 pounds, this tong easily handles ultra-heavy casing strings from 13 3/8 inches to 24 inches.
Chinese porcelain marks come in many different forms. Many marks are honorific, looking back to an earlier period in Chinese porcelain production that at the time was viewed as more desirable. Marks on Chinese porcelain pieces most commonly display the dynasty and the reign during its time of production. For example, this Qianlong mark of the period reads Da大, great; Qing 清, Qing (dynasty); Qianlong乾隆,reign (emperor); Nian年, year or period; Zhi制, produced.
This article is a brief introduction to some of the Qing Dynasty marks that are most commonly seen on Chinese Porcelain. These are not the only types of marks for these reigns but are examples of many of the most commonly seen marks. This article will be followed up with more detailed examinations of specific period marks, check back to find these or follow us on
A common mistake made in underglaze blue Qianlong six character marks is visible on the bottom left character, on the modern piece there are only three prongs while on the period piece there are five. This does not always signify authenticity.
Notice the difference in the quality of the painting. While strong lines and consistent color are traits of the real Jiaqing mark, the opposite is true of the Republic piece.
Continued his father’s efforts against the illegal opium trade, ultimately leading to the First Opium War (1839-1842). Of note are the differences both in quality as well as in color palette in both cobalt blue marks.
To the untrained eye these two marks appear identical; for the beginner, and the expert, it is essential to read a mark as part of a whole and examine the piece overall.
As shown in figures 1 to 6, of the present invention a kind of without dental impression hydraulic power tongs, mainly by the rotation of dual brake braking device
Turn main pincers 1, the clamping back tongs 2 of fluid cylinder clamped-in style, frame-type back-guiding rod assembly 3 and front guide rod assembly 4 to form;Rotate main pincers 1
Become;Jaw 1-4, maxillary grillage 1-13 and lower jaw grillage 1-14 are arranged at the inside of opening gear 1-15;Jaw 1-4 passes through spiral shell
Axle, for fix the axle of carrier pulley of idle wheel 1-5, power input shaft 1-7 and gear mechanism 1-8 composition;Hydraulic motor 1-9 is defeated with power
Screw 2-9 connects seamless block teeth 2-10;The oil inlet and outlet promoting oil cylinder 2-2 is in parallel with back-up tong control valve;Seamless block teeth 2-10
The cross section of inner surface is arc shape, the clamping surface coated with hard alloy-layer of seamless block teeth 2-10;Pitman arm 2-11 and back-up tong
Fagging 3-4 and screw 3-5 composition, the left and right sides of back-guiding rod frame 3-1 is symmetrically arranged with several back-guiding rod pin shaft holes, lower fagging
3-4 is fixedly connected with back-guiding rod pin shaft hole by screw 3-5, according to on-site actual situations, by conditioning box posture back-guiding rod
It is fixedly connected with the front bearing rotating main pincers 1;The front guide rod 4-7 other end is according to being embedded with back-up tong body 2-the most successively
1, front guide rod spring pad two 4-4, front guide rod spring 4-3 and front guide rod spring pad one 4-2, back-up tong body 2-1 and front guide rod spring
Roll on structure, thus promote the seamless block teeth 2-10 on jaw 1-4 to clamp tubing string, make tubing string with the rotation of opening gear 1-15
Wheel 1-15 stress deformation in clamping process, promotes clamping back tongs 2 control valve, when promoting the piston rod of oil cylinder 2-2 to stretch out, turns
Inwardly rotating for the center of circle with axis of guide 2-5 to rocking arm 2-11, seamless block teeth 2-10 clamps tubing string;Counteracting is born on the main pincers 1 of rotation
A tong (Chinese: 堂; pinyin: táng; Jyutping: tong4; Cantonese Yale: tong; : 53 is a type of organization found among Chinese immigrants predominantly living in the United States, with smaller numbers in Canada, Australia, and the United Kingdom. In Chinese, the word tong means "hall" or "gathering place". These organizations are described as secret societies or sworn brotherhoods and are often tied to criminal activity. In the 1990s, in most American Chinatowns, clearly marked tong halls could easily be found, many of which have had affiliations with Chinese organized crime.
These associations often provide services for Chinatown communities such as immigrant counseling, Chinese schools, and English classes for adults.: 48 Tongs follow the pattern of secret societies common to southern China and many are connected to a secret society called the Tiandihui are known as triads.
Tongs first appeared in China in 1644 when the Ming dynasty was overthrown by the Qing dynasty. One of the first tongs was established by the secret society Chee Kung Tong, which aimed to restore the power of the Ming dynasty by removing the new Manchu rulers of the Qing dynasty. These Zhigongtang tongs were located in the province of Guangdong, which was home to many of the first Chinese migrants heading to the United States—some of whom would take with them the notion of a tong as an organization to set up there.
Many Chinese soon organized voluntary benevolent associations for support and protection. These are usually formed by people originating in their district in China, family name, or depending on what native dialect, for example in the case of Hakka speakers, or sworn brotherhoods.: 53 The tongs provided services for immigrants such as employment and housing opportunities. They also helped resolve individual and group disputes within the community.: 51 The term tong became unfavorably associated with the secret brotherhoods in Chinatowns, and they often battled with other associations in that area. Tongs were usually composed of young men, some with criminal backgrounds, or outcasts who had been expelled from their associations.tong activities, such as gambling, were legal in China, but not in North America.
Early Chinese populations in the United States and Canada were overwhelmingly male, especially after sex-restrictive immigration laws were passed in 1882 in the U.S. and 1923 in Canada, respectively (see Chinese Exclusion Act and Chinese Immigration Act, 1923). For this reason tongs participated heavily in importing women from China for both marriage and prostitution. Many of these women did not come to America by choice, and some were deceived and forced into prostitution by procurers. Tongs associated with importing women to America fought over territories and profits. This became known as the "Tong Wars", which were a series of violent attacks between two branches of the Tong Gang, the Hip Sing Tong and On Leong Tong. The reasons for this conflict vary, from struggles over territory to assassinations of members.tongs employed "hatchet men" or boo how doy (Chinese: 斧頭仔), also called highbinders, as hired killers to fight the street battles that ensued over turf, business and women.
San Francisco was the home of the first Tong in the United States; it formed in reaction to the hostility that Chinese immigrants faced from American workers upon their arrival to America. In Bill Lee"s memoirs in "The Chinese Playground", which recalls the activities of the Tong Gang in San Francisco, he states that the oppression Chinese immigrants faced led them to turn to the Tong for protection. While it is true that the Tong offered protection, it is unclear if this protection was forced as a means to gain control of territory for the distribution of the group"s illicit activities.plague outbreak in Chinatown of San Francisco in the 1900s, the Chinese Six Companies recommended the vaccination plan to their members and the tongs. Doubting the effectiveness of vaccinations, many Chinese residents of Chinatown refused inoculations. Several tongs went so far as to threaten harm to those who did get vaccinated, as well as the Chinese leadership that endorsed doing so.
Tongs in North America showed many similarities to the triads of Hong Kong and British colonies in Southeast Asia. These included similar initiation ceremonies and paying respect to the same deities. This is because both are similar organizations that follow the patterns of southern Chinese secret societies and sworn brotherhoods.: 59 The triad societies were underground organizations in British colonies that also existed for self-help of members, but spoke of the overthrow of the Qing dynasty.auditor, and several elders and public relations administrators.: 58 Today their main aims are to care for their members and their respective communities.
Zhao, Xiaojian; Edward, J. W. Park PH D. (2013-11-26). Asian Americans : An Encyclopedia of Social, Cultural, economic, and Political History. Zhao, Xiaojian, 1953-, Park, Edward J. W. Santa Barbara, California. ISBN 9781598842401. OCLC 836261675.
Risse, Guenter B. (2012). Plague, Fear, and Politics in San Francisco"s Chinatown. Baltimore: The Johns Hopkins University Press. ISBN 9781421405537. OCLC 809317536.
Chin, Ko-lin. "Chinatowns and Tongs". In Chinese Subculture and Criminality: Non-Traditional Crime Groups in America. New York: Greenwood Press, 1990, pp. 47–66
"Tong War (United States history)" - Britannica Online Encyclopedia. http://www.britannica.com/EBchecked/topic/599143/tong-war (accessed February 12, 2011)
Sources say the president will make the announcement about 2:15 p.m. when he addresses a meeting of the Young Presidents Organization at the Old Executive Office Building next door to the White House.
The trade status renewal is a sensitive issue, in part because of allegations of continued Chinese human rights abuses, fears of how China will deal with Hong Kong following the July 1 transfer of power, and allegations that China has been funneling money into U.S. political campaigns.
Tongwei has revealed plans to set up a new polysilicon facility with a production capacity of 120,000 metric tons (MT) in Leshan, in China"s Sichuan province.
Norsun, which operates a hydroelectric-powered factory in Norway, has agreed to sell wafers to Meyer Burger, which plans to expand its annual solar cell production capacity to 3 GW by 2024.
The Bern University of Applied Sciences in Switzerland has published the initial results of a survey on the durability and performance of residential PV inverters and power optimizers over a 15-year period. They found that more than 65% of the inverters ...
SJVN, a state-owned hydropower producer in India, has signed an agreement with the state government of Uttar Pradesh to set up a 700 MW solar plant in the Indian city of Kanpur.
Solar and wind are being installed at a rate that is three times faster than all other new electricity sources combined. This offers compelling market-based evidence that PV and wind are now the most competitive and practical methods for deploying new generating capacity.
The clean power numbers published annually by the International Renewable Energy Agency provide a snapshot of the global solar market and, this year, a lot of figures were unchanged from the previous dataset, especially in the off-grid segment.
Floating PV is consolidating as a growth segment for PV demand, mainly driven by supportive policies and incentives extended by governments across the world. A major reason for this push is the limited land availability in many markets. Despite higher equipment prices compared to ground-mounted installations, developers see the opportunity to save on land and O&M costs. The output can also be as much as 30% higher than a ground-mount PV plant, depending on the site and technology used.
Tim Buckley, director of Climate Energy Finance, speaks to pv magazine about the crisis threatening Adani Group with collapse, the “positive outlook” for Australian renewables, and the nation’s potential to become a clean energy superpower.
New Zealand government-owned Genesis Energy and renewables partner FRV Australia have purchased an advanced 52 MW agrivoltaic solar project on New Zealand’s South Island. If the project meets its 2024 operational target as anticipated, it will be the country’s first utility-scale solar farm.
Wood Mackenzie estimates that the US microgrid market has seen a 47% increase in solar and storage capacity in 2022 compared to 2017 levels, driven by rising demand for uninterrupted services, military resilience plans, and corporate environmental, social, and corporate governance (ESG) goals.
Enel CEO Francesco Starace says the company is talking to an unspecified international investor about the sale of a 50% stake in its new 3 GW heterojunction solar module factory in Catania, which is scheduled to start operations in September.
While the first half of 2022 was one of the busiest periods on record for new wind projects in Australia, with more than 2 GW breaking ground, solar got off to a much slower start with construction on 635 MW of new PV projects getting underway. Rystad Energy’s David Dixon attributes this slowdown to high cost and supply chain challenges and a lack of available power purchase agreements.
Solyx Energy has developed a device to maximize solar self-consumption in residential homes. The sensor measures how much solar power can be fed back into the grid at different times, while a controller redirects that excess energy into an electric water heater.
Australian modular solar manufacturer 5B’s rapidly deployable Maverick technology is set for installation at a 95 MW hybrid power plant in Western Australia featuring solar, wind, and battery energy storage.
Discovery Battery’s new lithium iron phosphate battery system has a nominal voltage of 51.2 V and a capacity of 100 Ah. Up to six 5.12 kWh battery modules can be stacked in a single enclosure, and up to four enclosures can be connected in parallel for a total capacity of 120 kWh.
Plans for Europe’s largest-ever PV cell and module factory are taking shape, with equipment orders placed and a projected start date in mid-2024. Enel Green Power has received €118 million ($116.36 million) in funding from the EU Innovation Fund to support the project, out of a total €600 million investment. The EU is hoping it will catalyze further investment in similar projects, and start a high-tech comeback for European solar manufacturing.
Germany-based Solmax has developed a reflective membrane made of polyethylene resins and coated with a thin white polyethylene layer that reflects ultraviolet (UV) rays. The company claims the membrane can increase the energy yield of a bifacial PV project by between 5% and 20%, depending on the plant configuration.
The US solar market is set to add 29.1 GW of new utility-scale PV and 9.4 GW of storage in 2023, according to the US Energy Information Administration (EIA). If that new capacity goes online as planned, 2023 will have the most new utility-scale PV capacity added in a single year.
Axian has secured MGA 47.1 billion ($10.9 million) to finance the expansion of a 40 MW solar plant and a 5 MWh storage facility into a 60 MW PV project with 10 MWh of storage. The installation will become Madagascar’s largest solar park upon completion.
Sembcorp Industries has connected a 285 MWh battery storage system to the grid on Jurong Island, Singapore. It is reportedly Southeast Asia’s largest energy storage system, featuring 800 large-scale lithium iron phosphate (LFP) batteries.
Hundreds of millions of dollars are being spent by Chinese clubs on high-profile talent, including Argentina striker Carlos Tevez and Brazil midfielder Oscar this month, in a bid to become a football superpower.