tsudakoma rotary table oil pricelist

KOMA Precision Inc. introduces a new improved line of extra-large center bore, dual disc hydraulic clamping rotary tables from Tsudakoma. Like all Tsudakoma rotary tables, RCB Series has the proprietary dual lead worm gear system with ultra-precision cross roller bearings. The Tsudakoma dual lead gearing system delivers the optimal balance between power, durability and smooth cutting performance.

Three new models are available, with table diameter of RCB-350, R being 8.45", RCB-450, R with 10.4" and RCB-550, R with 12.4". The RCB Series rotary tables can be mounted either vertically or horizontally. Various options such as chucks, tailstocks, support spindles, and faceplates are available. Pneumatic and Hydraulic rotary joints for automatic load and unload of the work piece are also available.

"Koma Precision Inc. and Tsudakoma share a commitment to providing quality products that maximize the performance of machine centers," states Frank Cerrito, General Manager for KOMA Precision. "The features offered on the RCB Series are ideal for large-diameter work piece manufacturing that is mainly seen in the oil/energy industry."

The latest TN tilting range from Tsudakoma, with major developments over earlier models with major increases in speed and power transmission, with high power pneumatic clamping system. The unit has a 55mm spindle nose location with a generous location depth of 15mm with 35mm directly through the table and a has a centre height of 150mm in the vertical position (90 degrees) and 210mm in the horizontal position (0 degrees) without faceplate, 235mm with faceplate. This device is around 524mm in overall width which would ideally suit a wide range of machine tool bed widths and an overall height of 235mm. The unit has a tilting range as standard of -17 to + 107 degrees. An excellent carrying capacity of 20kg through the whole tilting range and 35kg horizontally or between centres and speeds of up to 41. 6rpm in the rotary axis and 16. 6rpm in tilt dependent on motor selection. Net weight of this device is 80kg. The Tsudakoma TN-131 CNC rotary tilting table without motors, can be prepared to suit any interface at additional cost (see our interface listings for details and costs for “external interface” (motor, switch, cable and connector requirements if you already have a “4th / 5th ;axis interface” in the machine) and machine interface costs (if you do not have the additional axes fitted). Rotary axis motor is mounted to the right hand side on this device and may restrict the Y axis capability in certain circumstances, the tilt axis motor is mounted in a rear facing direction on the far side of the device and should not have any bearing on traverses. This range of Tsudakoma devices now come with dual lead full depth worm and wheel, which means that there is less load on individual teeth improving wear and torque performance over and above the conventional standard gear. Tsudakoma is one of the oldest and original manufacturers from Japan and in our experience build a very fine device with a very long service life, probably greater than those we have experienced from other Japanese makers. Tsudakoma products carry a standard one year parts and labour warranty and have a full working partnership with CNCROTARY. COM. This device may take from 2 to 3 weeks to configure as required.

Tsudakoma had been providing best-in-class rotary tables for over 100 years, offering multiple models and configurations to ensure seamless integration with your machining centers. Koma Precision has been distributing Tsudakoma’s tables for over 40 of those years and our North American sales team and in-house engineers will work with you to determine which model best suits your machining needs.

Lyndex Nikken – Hydraulic Chucks & Toolholders, 3 Jaw Chucks and Angle Heads, Rotary Tables, Live Tools for Turning Cneters, Shrink Fit Machines & Holders, Precision Collets

Notes: 1. The table above shows the maximum rotation speeds when the MP scale is attached. The rotation speed of the rotary table is determined by the

2. Motors described above are selected for the equivalent motor torque capacity. The motor which is actually used on your rotary table is determined by

Notes: 1. Indexing accuracy above is for the table with MP scale. 2. For RB-K models, No. 3 does not apply. 3. The figure in ( ) *1 above shows an indexing accuracy with scale for the RB-250 and RB-250K.

4. The figure in ( ) * 2 above shows an indexing accuracy for the RB-500 and RB-500K. 5. For RB and RB-K rotary tables with a 1/60 gear ratio or less, indexing accuracy is ±10 arc sec.

In the market for a rotary table? The checklist of requirements starts with speed, accuracy and rigidity. Will it be used for contour machining? Do you need high-speed indexing for high-volume parts? What features and capabilities will help in the short and long term within the industries your company serves? CTE spoke with multiple rotary table manufacturers to discuss market trends, product innovations and add-ons that can improve overall machine tool performance.

In addition to a standard rotary table, many manufacturers require additional system features to meet the special machining requirements necessary in production facilities, according to Randy Conley, rotary table product manager at CNC Engineering Inc., Enfield, Conn. “Today’s rotary table customers typically look for a turnkey package that includes an additional axis interface, control options, rotary table hardware, installation, training and a complete documentation process. We also have to offer accessories like workholding fixtures, tailstocks, risers and hydraulic power units,” he said.

Off-the-shelf rotary tables are not always enough as customers seek equipment made specifically for their individual machining applications and the accessories. “For example, the application may require an outboard support spindle and a trunnion plate. A subplate or riser may be required. These parts would all be designed based on a particular manufacturing process for a particular machine,” Conley said.

CNC Engineering’s custom rotary table comes with a single PVC cable with a waterproof connector that can be connected or disconnected in a few seconds with a half turn. This cable has proven to be highly durable and remains flexible after years of use. Image courtesy CNC Engineering.

Conley said small improvements through the years have been the norm for rotary tables. “Most commonly, that has meant higher speeds and greater clamping torque. Many rotary table manufacturers offer worm wheel models that are able to run at 100 rpm or more, within a limited-duty cycle. Pneumatic clamping torque is often in the range now that could only be provided with a hydraulic clamping system just a couple of years ago,” he added.

Many manufacturers offer direct-drive rotary tables that eliminate the worm gear (see chart on page 66). “These tables can offer higher speeds than the traditional gear drive tables but, depending on the application, the drive torque may be lower. Furthermore, users may find it necessary to retune the servo drive for different applications to maintain optimal performance and stability,” Conley added.

“These direct-drive rotary tables specialize in eliminating backlash and can provide a stiff mechanical system for highly dynamic applications,” said Gregory Kane, marketing manager at IntelLiDrives Inc., Philadelphia. “Integrated with precision bearings and ring encoders, these tables provide high performance for indexing applications compared to other mechanical transmission rotary systems.”

Today’s rotary table users seek products that are accurate, efficient and easy to use, according to Frank Cerrito, general manager at Koma Precision Inc., East Windsor, Conn. “Our customers are looking for automatic fixturing to increase production and reduce errors, for example. They’re asking for higher speeds, higher accuracy and less backlash.”

These tables are being purchased for old and new machine tools, according to Conley. “Often our customers would like to be able to use an older rotary table on a new machine, as well as an older machine. Depending on the control vintages, we can often accommodate that need,” he added.

The Weiss rotary indexing ring has a large central opening to allow a customer to position all tooling and cables internally. Image courtesy Weiss North America.

Additional considerations play a part in choosing the right rotary table. This includes everything from number of axes, position requirements, faceplate size, motor location and energy requirements. “A customer may need a low-profile rotary table that reduces rotor inertia, improves start/stop behavior and enhances velocity control compared to conventional rotary systems,” Kane said. “This is due to the lightweight, direct-drive motor, resulting in precise bidirectional speed and position control, which is critical for high-speed motion contouring.”

Weiss North America Inc. says its index tables are sized properly so the use of an overload clutch is not needed in a jam-up situation. Overload clutches increase the maintenance cost of the table, according to John Treter, the Willoughby, Ohio, company’s product sales manager.

“Our tables are also filled with oil at the factory and will never need to be changed,” Treter said. “Because of these two differences, Weiss is a maintenance-free solution. We also manufacture risers, tool and stationary plates and machine bases. This saves our customers the hassle of purchasing multiple components from multiple vendors.”

The size of the through-hole is an additional factor. “A table with a large center hole allows [running] routing cables and pressure/vacuum lines through the aperture, placing test objects into the aperture, and inserting work tools and installing slip rings,” Kane said.

“Sometimes there may not be a pre-engineered solution for keeping a rotary table connected to the control throughout a pallet change,” Conley continued. “Designing and building a system for a particular machine model is often more work than a customer wants to take on. CNC Engineering has developed several types of cable management systems. If we’re dealing with a new model, we typically customize one of our existing systems to adapt it to a new machine configuration.”

Weiss North America introduced the first rotary indexing ring, which features a large central opening. “This allows the customer to internally position all tooling, cables, etc. and to work from the inside out, saving sought-after floor space,” Treter said. “From there, we moved to servo mechanical, offering another option utilizing the same design yet incorporating the flexibility of servo technology.”

Koma Precision, which distributes Tsudakoma rotary tables, offers a detailed comparison chart (www.komaprecision.com) for those interested in some of the advantages and disadvantages of a worm wheel vs. a direct-drive system. Here are some of the differences that distinguish the rotary tables from one another.

The Third-Party Rotary provision provides access to the rotary parameters in the Haas control, allowing you to use a third-party single- or two-axis rotary table on your Haas machine. The option supports full simultaneous machining up to 5 axes, and is compatible with Dynamic Work Offsets and Tool Center Point Control. It is the responsibility of the customer and the third-party manufacturer to troubleshoot and fine tune the different parameters. Requires the purchase of the 4th-Axis Drive option to operate a single-axis rotary, or the purchase of both 4th- and 5th-Axis Drive options to operate a two-axis rotary.

Koma Precision, Inc. introduces a new line of high performance, 4th axis rotary tables from Tsudakoma, a manufacturer of precision rotary tables. "The RNE Series 4th axis rotary tables are compact, high-performance tables offered at economy line pricing," said a Koma spokesperson.

Four new models are available, ranging from the RNE-160 with 6.3" (160 mm) face-plate capacity to the RNE-320 with 12.6" (320 mm) face-plate capacity. The RNE Series tables" feature speeds ranging from 25 to 44.4 RPM and indexing accuracies ranging from 10 to 12.5 arc seconds. Various options such as chucks, tailstocks, support spindles and faceplates are available. Pneumatic and hydraulic rotary joints for automatic load and unload of the work piece are also available.

"The RNE Series feature heavy-duty construction combining Tsudakoma casting material with Tsudakoma"s dual lead worm gearing system featuring the largest tooth engagement of any rotary table manufacturer. This proprietary gearing system generates up to 85% torque transfer efficiency. These tables also feature Tsudakoma"s ultra precision cross roller bearings that support radial, axial and movement loads four times the level of stiffness as angular contact bearings," said the spokesperson.

"Koma Precision, Inc. and Tsudakoma share a commitment to providing quality products that maximize the performance of machine centers," said Hiro Ichikawa, OEM Sales Manager for Koma Precision, Inc. "The features offered on the RNE Series are ideal for those looking for economical ways to improve the flexibility and productivity of their operation without compromising rigidity and accuracy."