Motion Control

Rotary Valve

RotaVal Ltd. (Wiltshire, UK) introduced a heavy-duty rotary valve for use where solids handled and operating conditions combine to cause abrasive erosion within the valve. It has on-site component replacement. The valves are used in discharging materials such as cement, PFA, granite dust, silica sand, and mineral powders under adverse pressure conditions. Standard valves are manufactured in cast iron, SG iron, Ni-hard, and carbon steel. The replaceable body liner can be hard chromed or ceramic coated. Rotor shaft sealing options include various types of gland packing, mechanical seals, and air or grease purge.

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Voice Coil Actuator

The LAH15-19-000A linear voice coil actuator from BEI Kimco (Vista, CA) provides low hysteresis/ low friction with bi-directional position control. It is suited for applications where low friction and high force accuracy are needed. The low-friction design features a patent-pending symmetrical flex circuit that prevents friction caused by movement. A solid brass ball cage with captured steel balls also reduces friction. The actuator offers a hysteresis of 10 mN. Other features include a peak force of 4.7 N, a total stroke of 7.4 mm, and a compact size of 38 mm in diameter by 48.3 mm in length.

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Compact Robot

ABB Robotics (Auburn Hills, MI) introduced the IRB 1660ID compact robot for arc welding and machine tending applications. It features a DressPack design that allows users to program and simulate predictable cable movements, a rigid upper arm with a reach of 1.55 m, and a payload of 6 kg. It is able to accommodate heavier weld torches, and provides wire feeding control near the arc. TrueMove™ technology provides 0.05-mm path repeatability. The integrated DressPack allows the robot to move at maximum acceleration and speed for machine tending applications. The risk of collision in confined spaces is also eliminated, and the 1,390° working range of axes 4, 5, and 6 enables agility in CNC machines.

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Block Spindle

Suhner Industrial Products Corp. Automation Division (Rome, GA) introduced the BEX8 high-speed machining block spindle capable of maintaining rigidity and precision at operations up to 25,000 rpm. The spindle weighs 33 lbs. and can be mounted directly onto robotic arms for fully automated machining operations in automotive, appliance, off-highway, and other industries. The standard motor supplied is either 0.37kW or 0.75kW, and the standard toolholder supplied is ER20.

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Rotary Tables

Koma Precision (East Windsor, CT) offers Tsudakoma RDS Series direct drive rotary tables that use a proprietary direct drive motor system that enables the tables to achieve high speed and acceleration with no backlash. The compact, single-axis, 150-rpm tables feature indexing accuracy of ±10 arc seconds and a pneumatic braking system. Various options such as rotary joints, chucks, tailstocks, support spindles, and faceplates are available. The tables can be integrated with machine tools that have Fanuc or Mitsubishi controls. The tables also feature a low-profile build for mass production and high-speed indexing operations in the automotive, medical, and computer/electronic manufacturing industries.

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Undermount Slide

Accuride (Santa Fe Springs, CA) announced the 3135EC Eclipse Undermount Easy- Close slide. The slide offers improved full extension movement with a 100-pound load rating and 4.8 pounds of pull force. The Easy-Close action brings drawers to a smooth close while reducing the total envelope of the product. Fluid dampeners resist slam without adding bounce-back. The slide can be configured with multiple drawer-front adjustment features, enabling horizontal, vertical, and front-to-back adjustment. A lower spacer clip with plastic ball bearings provides additional lateral support, reducing drawer sagging and side-to-side movement.

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Pneumatic Gripper

Fabco-Air (Gainesville, FL) announced the FKHS Series 3 Jaw parallel motion pneumatic gripper for handling small parts in tight spaces. They are available in bore sizes of 25, 32, 40, 50, 63, and 80 mm. A magnetic piston is standard on all grippers. Mounting is via direct body (top and bottom) mounting holes.

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