carter power tong parts manufacturer

This is a list of hydraulic rod and tubing tongs manufactured by Carter Tool Co, Inc. We manufacture these tongs brand new. They are CE certified and designed to conform to factory, OEM specifications. We also carry a complete line of parts for tongs we manufacture.

You can use the links on this page to construct a quote request for new tongs and parts from Carter Tool. Our website does not allow ordering, yet. When you"ve finished, you can view the quote you"ve created. If you"re satisfied with the parts you picked, you can provide your name, company name, and primary email. Then, simply click the "Submit" button at the bottom of the request form. Your request will be sent to our primary sales email: info@cartertool.com.

Tongs - Power - New Carter Tool Co. Inc., CT93R Hydraulic powered tubing tong. Complete with 2-3/8" to 3-1/2" jaw assemblies, standard motor, torque gauge assembly, pressure relief valve... More Info

Tongs - Power - New Carter Tool Co., Inc. 5-1/2" CTSX Hydraulic Tubing Tong with heavy case and cover; complete with rigid hanger assy., suspension spring assy., front end control assy.,... More Info

Tongs - Power - New Carter Tool Co. Inc. M-Series power sucker rod tongs, complete with spring hanger assy., gate assy., front end control assy., pressure gauge assy., two 90 degree XH s... More Info

Tongs - Power - New Carter Tool Co., Inc. 4-1/2" RSX Hydraulic Tubing Tong with heavy case and cover; complete with rigid hanger assy., suspension spring assy., front end control assy., ... More Info

Carter Tool Company was established in 1972 as a power rod and tubing tong rental and repair service business. The company manufactures parts and equipment for the well servicing industry. It offers rental services for various tongs with jaw assemblies. Its power tong features operator-controlled torque adjustments at the tool, a direct-reading torque gauge, tandem control locations and a gear-type hydraulic drive. The company s more than 4,000-square-feet machine shop facility features up-to-date equipment, including computerized numerical control machining and turning centers. Its gear hob handles spur and helical gears with diameters up to 30-inch, and the gear shaper can cut internal and external gear teeth and splines. The company also offers new and remanufactured tubing and rod tongs and their accessories. Carter Tool Company is based in Odessa, Texas.

As an authorized Cat dealer, we carry a full line of genuine Cat Parts. We also have a huge selection of OEM parts for other brands and manufacturers.

Having access to parts is critical when you want to keep your machines running and staying profitable. Parts.Cat.com provides a convenient way for you to find and order parts from Carter, 24 hours a day.

Present day tongs that are employed for coupling and decoupling threaded pipe sections are typically subject to one or more of a number of practical problems. Some examples are found in systems for the engagement and disengagement of sections of a casing or pipe string that is to be lowered into or removed from a well bore. Extremely high torques may have to be applied, due to combinations of factors such as the presence of corrosion, the existence of distortion, and pipe size and weight. High shock forces arise, both in the "make" direction of rotation when a shoulder is suddenly encountered, and in the "break" direction at initial engagement of the tong and disengagement of the threads. Moreover, the forces and pressures involved are at such levels that operation is seldom smooth and uniform. For example, with a power driven tong, in excess of 68,000 J (50,000 foot-pounds) of torque may be exerted. Consequently, when using relatively small die elements to grip the pipe it is common for slippage to occur and for the pipe surface to become marred or otherwise damaged.

Pipes must be successively joined and lowered into the well or, conversely, separated and removed therefrom. Joint sections generally are circular, and the pipes have no provision for keyed type engagement with a tong mechanism.

Grip elements of tongs, such as jaws with dies, can be provided with multiple serrations, or penetration features, to provide the interference contact needed at the joint surface. The progressive refinement of pipe materials and installation procedures and use practices has mandated limitation and control of grip element penetration into the joint surface. Consequently, the distribution and balance of grip element energizing forces are critical factors in the design, development and evaluation of such tong mechanisms.

Many designs also are such that die loading becomes increasingly asymmetrical as pipe size is reduced, substantially increasing die wear and the probability of damage. A power tong should preferably be able to cover a range of pipe sizes without difficulty, and if a further pipe size change is needed it should be effected with only an easy interchange of parts. Maintenance and life problems have an economic significance far in excess of the cost of the dies or even the pipe involved, because the down time that results when replacements or repair must be made involves not only material costs but also drilling rig and crew costs and the continuing charges for other specialized tools and equipment present at the drilling rig. Thus a power tong system which requires frequent replacement of dies or other elements or which causes undue damage to sections in a pipe string would be far inferior to a power tong system which operates steadily and uniformly.

The extremely high stresses and abrupt shocks encountered in tong operation are usually attended by visible strains on the equipment and by vibrations and sharp impacts which results in a very short fatigue life for the parts involved and unit as a whole. These are caused by overload or unbalanced force conditions which are further evidenced by undue wear, slippage or equipment damage.

Some tongs use drag or braking techniques to secure proper biting of the dies relative to the pipe. As the rotary element is driven the head or other member supporting the dies is frictionally restrained to ensure that the dies do not simply rotate with the rotary element. In many power tong systems, a substantial part of the available energy is effectively used only for overcoming braking friction. Belt and Chain Tongs

Instead of using jaws or dies to grip pipe, some tongs use an endless belt, chain or flexible material loop. Such tongs are disclosed in US Patent Specification Nos. 3 799 010; 3 906 820; 3 892 140; 4 079 640; 4 099 479; and 4 212 212. Many problems are encountered with the use of such tongs. (1) The length of an endless chain must be changed to accommodate pipes of different size or means must be provided to maintain pipes on a centered position. If the pipe is not maintained in the desired centered position, torque monitoring is difficult or impossible.

(4) A tong using pivotable arms or gate members to hold a pipe within the tong body can be transformed into a dangerous projectile if the arms" activating or control mechanism fails allowing the tong to disengage from the pipe.

Both the jaw/die tongs and the belt/chain tongs described above can be used with (and are usually used with) relatively hard and rigid metal pipe such as casing and tubing. When such tongs are used with thick pipes or pipes made from relatively "softer" metals or from premium metals such as high alloy steels or low carbon steels or pipes made from non-metal materials such as fibre glass, they often literally chew up the pipe. Manufacturers of such pipe have recommended against the use of any tong with dies or with hard contact means such as chains. On the other hand, the use of strap wrenches was recommended; but available strap wrenches are inadequate because of the inability to precisely control the torque applied with such wrenches -- a problem which is compounded by the fatigue of users since the use of such wrenches requires considerable physical labour. Leaking and pollution may occur if a worker thinks a tight makeup has been achieved when in fact optimum torque has not yet been reached.

According to the present invention there is provided a tong for rotating a pipe, said tong comprising a housing with an opening therein for receiving said pipe, a rotary element mounted for rotation with respect to said housing, an anchor movably disposed within said housing adjacent to and movable with respect to said rotary element, a belt carrier mounted on said rotary element, and a belt for gripping said pipe extending between said anchor and said belt carrier, said rotary element and said belt carrier being rotatable about said pipe to wrap said belt around said pipe.

Preferably, said opening extends through the side of said housing so that said tong can be emplaceable about said pipe without requiring that it first receive an end of said pipe.

Advantageously, tongs in accordance with the invention include brake means mounted in coacting relationship to said rotary element for providing preloading in said belt.

Preferably, backup means are provided for maintaining the position of said pipe to be rotated during operation of the tong. Such backup means may comprise extendible and pivotable scissor members mounted on said housing.

For a better understanding of the present invention reference will now be made by way of example, to the accompanying drawings, in which:- Fig. 1 is a simplified top plan view, with part cut-away, of a tong according to the present invention about a pipe with the top mount plate removed and the tong housing and drive gears shown in outline.

Referring to Fig. 1, a tong 2 has a tong housing 3 (shown in outline) and drive elements including idler gears 4, intermediate gear 5, and a drive gear 6. An opening 7 in the tong housing 3 is provided for receiving a pipe 8 to be rotated. The pipe 8 (exterior surface only depicted in Fig. 1) is shown centered in the tong 2. The gears turn a rotary element 9.

A belt apparatus 10 including an anchor assembly 20, a belt 60, and a belt carrier assembly 70 is disposed within the tong 2. The belt apparatus 10 in combination with other tong parts provides the means for wrapping the belt 60 about the pipe 8 in a non-symmetrical configuration with respect to the longitudinal axis of the pipe and the corresponding axis of the tong 2.

As will be described below, the anchor assembly 20 is connected to mount plates which in turn are acted upon by braking apparatus. It is this braking force which the rotary element 9 must overcome to move the anchor assembly 20. Once this force is overcome the rotary element 9, belt 60, belt carrier assembly 70, and anchor assembly 20 will move in unison and cause the pipe 8 to rotate. Prior to overcoming this braking force, and after the belt carrier pivot pin 73 has been restrained in the makeup recess 22, the tension bar shaft 71 and the tension bar pin 72 continue to move in relation to the pivot member 76. This in turn increases the turning moment about the belt carrier pivot pin 73, thereby pulling or preloading the belt 60 until the stop surfaces 28 and 77 as well as tension stop member 75 and stop surface 77 come into contact. This preloading assures that when the parts and assemblies move in unison there is already sufficient force so that the belt 60 will not slip on the pipe 8.

More detail of the tong 2 is illustrated in Fig. 8. In outline a mount brake plate 65 is shown and a backup device 50 is similarly shown. The rotary element 9 has rotated the belt carrier assembly 70 in Fig. 8 to the point where the belt carrier pivot pin 73 has been received in and restrained by the makeup recess 22.

Fig. 9 presents a view of the apparatus of Fig. 8 along line IX-IX of Fig. 8 (without the belt) Fig. 9 illustrates the full anchor assembly 20 and belt carrier assembly 70 in relation to the tong housing 3 and the rotary element 9. The anchor assembly 20 is bolted to the top mount brake plate 65 and to the bottom mount brake plate 64. The backup device 50 is bolted to the top of the top mount brake plate 65 and the backup device 51 is bolted to the bottom mount brake plate 64. Braking action on the plates 64, 65 is provided by conventional braking means such as band brakes 79, 78, respectively which act on the tong housing 3.

Figs 10a through 13b illustrate various parts of the rotary assembly and the mount brake plates of the apparatus of Fig. 9. Fig. 10a is a top view of the top rotary guide 56 and the rotary element 9. Fig. 10b is a sectional view along the top rotary guides 56, the bottom rotary guide 57 and the rotary element 9. Figs. 11a and 11b show the top mount brake plate 65. Recesses 35 and 36 are for receiving and holding pivot shafts 46 and 47, respectively, of the top backup device 50.

The belt carrier assembly 70 and its parts illustrated in detail in Figs. 14a-m are composed of a tension bar assembly including the tension bar shaft 71, the tension bar stop members 75 which are secured to the tension bar shaft 71, and the tension bar pin 82 secured to the stop members 75; the drive links 74 through which the tension bar shaft 71 is movably mounted and through which the drive pin 69 is also movably mounted for securing the belt carrier assembly to the rotary element 9; the tension stop assembly including the pivot members 76 and the pivot member spacer secured thereto and extending therebetween, the pivot members being movably mounted about the tension bar pin 82; the belt carrier pivot pin 73 which is mounted through the pivot members 76; and the return springs 68 mounted around the tension bar shaft 71 and extending to contact the drive pin 69 and the belt carrier pivot pin 73.

As shown in Fig. 16, an endless belt 11 can be employed with the tong 2. The belt 11 is looped around the anchor pins 25, extends between the guide pins 26, wraps around the tension bar shaft 71, and is looped around the belt carrier pivot pin 73. From the side, the belt is seen as wrapped around and between anchor pins 25 and take up pins 61 and then passing between the guide pins 26, wrapping around the pipe 8, passing between the drive pin 69 and the tension bar shaft 71, passing around the tension bar pin 72 and looping around belt carrier pivot pin 73. The endless belt 11 is in a plane between lugs 33 and 34. Unlike rotative apparatuses which employ endless chains or belts which are disposed symmetrically about the pipe to be rotated and within the apparatus itself, the endless belt (or non-endless belt) used with tong 8 is not symmetrically disposed either with respect to the tong or with respect to the pipe 8.

Figs. 17a and 17bshow a tong 40 with dual rotaries 41 and 85 and dual belt carrier assemblies 42 and 43 (each corresponding to the belt carrier assembly 70 of the tong 2). Belt carrier assembly 43 is associated with belt 38 and belt carrier assembly 42 is associated with a belt 39. By wrapping and energizing the belts 38 and 39 in opposite directions before rotating the pipe 106, it is possible to centrally locate the pipe and balance the forces applied.

Geared mount plates 81 and 89 correspond to mount plates 65 and 64 respectively of the tong 2. However, the geared mount plates 81 and 89 do not have braking capabilities. In practice, only one rotary element (such as rotary element 85) is driven, not both. Brake apparatus 120 which acts on the tong housing restrains gear holder 121 from initially turning when rotary element 85 is rotated. Brake apparatus 122 restrains top rotary guides 86a and 86b and rotary element 41 from turning by virtue of these items being fastened together. Gear mount plate 81 transmits motion to arcuately distributed gears 83 located on the gear holder 121. This in turn drives, in the opposite direction, geared mount plate 89. Geared mount plate 89 drives top anchor assembly 44 causing engagement and energizing of belt 38 on belt carrier assembly 43. Energizing of belt 38 causes top rotary guides 86a and 86b rotary element 41, gear holder 121 and gears 83 to turn with lower rotary element 85 and its associated parts by overcoming braking friction supplied by brake apparatus 120 and 122. When this occurs, gear mount plate 89 and top anchor assembly 44 reverse their direction and turn with rotary element 41 and its associated parts.

Each backup device 50 and 51 is attached to a mount brake plate and has two arms mounted one above the other. The arms are movable in and out perpendicular to the axis of the pipe to be rotated and can accommodate a wide range of pipe diameters within the constraints of a tong"s size.

The backup device 45 shown in Figs. 19a, 19b, and 19c has a rod 101 movably mounted in mounts 102 and connected to a yoke 91. A pin 90 extends through the yoke 91 and through top arm 92 and bottom arm 93. The arms are movable about the pin 90. The arms 92, 93 are pivotably mounted to the brake plate 96 on shafts 103, 104, respectively. Movement of the rod 101 toward the centre of the tong will cause the arms to pivot inwardly as the pin 90 moves in a recess 98 of the arm 92 and a recess 99 of the arm 93. As shown in Fig. 19a, when pipe 105 of smaller size than pipe 106 is to be rotated, the arms move inwardly to contact the smaller pipe and maintain it in a centered position. A non-metallic high friction material can be employed for the contact surfaces 107 on the arms.

The tong 12 of Fig. 18 has a closed housing 13, a closed rotary element 18, an anchor assembly 15 (corresponding to the anchor assembly 20), a belt 16 (corresponding to the belt 60), a belt carrier assembly 17 (corresponding to the belt carrier assembly 70), and a drive train 19 for rotating the pipe 18.

In operation of the tong 2, pivot pin 73 on the belt carrier 70 contacts the finger 27 on the plate 21 and is stopped by the wall of the recess 22. After this occurs, the recess will only allow rotation of the pivot pin 73, not axial movement, thus trapping it. The rotary element 9 is still turning at this time and therefore driving the belt carrier 70. The belt carrier 70 itself is biased to hinge or toggle in one direction only with appropriate return springs 68 used to keep the device in an open position.

As the rotary element 9 drives the belt carrier 70, sufficient force is exerted against the springs 68 to allow the belt carrier pivot member 76 to toggle or hinge about the tension bar pin 72. This shortens the distance between the tension bar shaft 71 and belt carrier pivot pin 73. However, it may be necessary to provide a recess pocket or cutout (such as the rotary recess 67) in the rotary element and rotary guide (such as recesses 109 110 Fig. 12a) to prevent interference with the tension bar shaft 71 as the belt carrier toggles or hinges. This is dependent on the tong"s pipe diameter capacity and is not required in all cases. The length of the belt on the belt carrier is also shortened because it is wrapped around the aforementioned components as they move. Though this creates a slack condition in the belt, it is automatically taken up by the continued rotation of the rotary element and belt carrier and the still stationary anchor pins 25. The belt carrier 70 continues to be driven by the rotary element 9 and causes the belt carrier pivot member 76 to rotate about the now trapped pivot pin 73, coming to rest against the anchor assembly spacer 37. At this point the tension bar shaft 71 and the tension bar pin 72 continue to move or rotate in relation to the belt carrier pivot member 76. This lengthens the distance between the tension bar shaft 71 and the belt carrier pivot pin 73. As this occurs, the belt is pulled or preloaded by the movement of the tension bar shaft 71. This preload is large because of the geometric relationship of the components involved imparting a force multiplication (leverage) on the belt. This continues until the tension bar stop member 75 on the tension bar shaft 71 contacts the pivot member 76. At this time, the belt has sufficient frictional contact with the pipe to turn it with the rotary.

The Model 300 Sucker Rod Tongs made to make getting on and off the rods easier and to reduce weariness and mishaps. The Model 300 accelerates tripping the pipe, protects rods, and all while simply using the same power unit as a tubing tong. The Model 300 comes with a modifiable relief valve to set the torque; 95 RPM and 850ft/lbs. of torque at high range. Situated by a firm torque arm, this tong can engage automatically and release automatically by a reversing tong.

The Model 300M Sucker Rod Tongs made to make getting on and off the rods easier and to reduce weariness and mishaps.  The Model 300 accelerates tripping the pipe, protects rods, and all while simply using the same power unit as a tubing tong. The Model 300 comes with a modifiable relief valve to set the torque; 95 RPM and 850ft/lbs. of torque at high range. Situated by a firm torque arm, this tong can engage automatically and release automatically by a reversing tong. A feature unique to this model is the ability to breakout and make-up 1-1/8” rods without over torqueing.

The Model 500 Power Tubing Tong has a size range of 1-5/16” to 7”, joint make-up in 5 seconds, and joint break-out in 7 seconds. With a split glide ring, both safer and more convenient access to jaws and final drive gear components is attainable, while pressurized oil baths ensure that the Model 500 is properly lubricated. The Model 500 also features an adjustable clutch and air or hydraulic assist for the back-up tool. Also fitted with a “Power Shift” Transmission, the operator is able to adjust gears during operation while the Improved Drive Alignment minimizes wasted power.

The Model 600 Power Tubing Tongs feature an adjustable clutch and is available in either air or hydraulic assist for the back-up tool. Also fitted with a “Power Shift” Transmission, the operator is able to adjust gears during operation while the Improved Drive Alignment minimizes wasted power. The Model 600 permits joint make-up in 5 seconds and joint break-out in 7 seconds. With a split glide ring, both safer and more convenient access to jaws and final drive gear components is attainable, while pressurized oil baths ensure that the Model 500 is properly lubricated.

The Model RSHD Power Tubing Tongs are truly a heavy duty piece of equipment that is for the tough jobs. The Model RSHD has more steel weight and gussets added to the bottom in order to diminish chance of case spreading. This model features a customary chain-driven design, integral sprocket, and outer ring. Lastly, the Model RSHD utilizes a familiar jaw-and-bushing biting system.

The Model 700 features the highest torque of all the Power Tubing/Casing Tongs at 20,000 ft./lbs. at 2000 PSI. This model consists of a light drill pipe, tubing, and casing.

The main products are hanging clamp series, kava series, various filling series, casing chuck series, pneumatic chuck series, drill rod power pliers series, casing power pliers series and so on. The products are all produced by the API standard. They have passed the American Petroleum Institute Q1, ISO9001-2000, ISO-TS-29001 international quality system certification, and enjoy the API "7K" "8C" monogram usage rights and self-support import and export rights.