SKF Magnetic Actuators    Olney, IL 62450
Feb 06, 2003 RUNNER provides high push and pull force for medical and industrial applications. Speeds at full load range from 4.5-7.5 mm/sec, and stroke lengths range from 100-700 mm. Actuation system includes failure-safe control unit for operation of up to 3 actuators. Control unit can be operated as stand-alone unit or mounted directly on actuator. With safety factor of 4 for stroke length up to 250 mm, actuators incorporate cycle counting feature.

Amacoil Inc.    Aston, PA 19014
Feb 04, 2003 Linear Motion Assembly is linked to production machine's main motor and does not require separate motor or controller to provide automatically reciprocating linear motion. Threadless shaft prevents clogging and jamming. Assembly offers axial thrust capacity to 800 lb, accuracy to ±0.005 in. and travel speed up to 13 ft/sec at constant rpm over max distance of 16 ft. Linear pitch may be adjusted on-the-fly, without changing motor speed or other controls.

Haydon Switch & Instrument, Inc.    Waterbury, CT 06705 3910
Jan 29, 2003 Size 14 non-captive, hybrid linear actuator features engineered thermoplastic in rotor drive nut and stainless steel Acme lead screw. It is offered in variety of resolutions ranging from 0.000125 to 0.002 in. per step and delivers thrusts up to 25 lb. Designed for several million cycles, actuator is suitable for precise positioning and rapid motion applications including medical equipment, X-Y tables, automation, and valve control.

THK America, Inc.    Schaumburg, IL 60173 5340
Jan 20, 2003 Offered with wide rails and low center of gravity, Type SHW incorporates Caged Technology, which isolates each load carrying re-circulating elements in individual cage or pocket. Cage prevents ball-to-ball or roller-to-roller contact and associated friction. Product can be used in various applications in any position, as each row of balls is arranged at 45° angle. Circular arc groove design is built into unit, eliminating mounting misalignment and promoting smooth linear movement.

Tol-O-Matic, Inc.    Hamel, MN 55340 9499
Jan 14, 2003 Suited for use in scissor, pinch, or C-style welding guns, HT Series Actuator incorporates integrated motor, actuator, and feedback. Dynamic thrust capabilities are rated for 6 million welds at up to 2,300 lb. Factory lubricated and sealed, series offers bearings on nose and nut-thrust tube coupler that isolate radial loading. Product is available in 3 sizes rated for 700, 1200, and 2300 lb of thrust in custom stroke lengths.

BEI Kimco Magnetics    Vista, CA 92081
Jan 13, 2003 Model LA100-90-001 cylindrical voice-coil linear actuator offers continuous stall force of 290 lb and peak-force rating of 550 lb. Hysteresis free, cog free, 2-terminal, direct-drive linear servo features infinite position sensitivity. Unloaded acceleration capability is 12.8 g continuous and 24 g for 10 sec. Center hole is 2.80 in. for linear-bearing installation, forced ventilation, cable runs, optical paths, or sensor installation.

Trombetta Motion Technologies    Menomonee Falls, WI 53051
Jan 02, 2003 Bi-Directional Latching Actuator can be customized to work in various switchgear applications. Suited to vacuum switchgear applications, product offers remote actuation, 2-position permanent magnet latching features that prevent demagnetization, and electromechanical design with no linkages/springs required. Unit requires 25 joules or less per unlatch for 15.5 KV vacuum bottles. Operation time is typically less than 2 cycles.

Jordan Controls, Inc.    Milwaukee, WI 53218 1613
Dec 27, 2002 Series EH-2000 actuators use internal spring-return mechanism for positioning valve in safe condition. Units can be fail-safe to close, open, or lock in position on power or system failure. Offered in both weather-proof and explosion-proof models, self-contained actuators offer true electronic control from process variable to valve. They provide resolution and repeatability less than 0.25%, unrestricted continuous duty, and 4–20 mA command and feedback.

Haydon Switch & Instrument, Inc.    Waterbury, CT 06705 3910
Dec 19, 2002 Size 17 captive linear actuator includes military style connector and proximity switch for end of travel. For hybrid captive motors, Size 17 or 23 units offer max operating travel of 2.5 in. with forces up to 50 lb for Size 17 and 200 lb for Size 23. Precision per step can be as low as .00012 in. Anti-backlash nuts are available for extreme bi-directional precision.

Del-Tron Precision Inc.    Bethel, CT 06801
Dec 12, 2002 Model LE2-X features 2.060 x 2.500 in. aluminum actuator base that uses E-2 AC series ball slide assembly with 0.50 in. of travel. Anti-creep retainer system maintains alignment. Standard 0.188 in. diameter, 0.050 in. lead leadscrew drives slide from side. Anti-backlash nut is spring-loaded to assure positive movement when changing direction. Actuator offers straight-line accuracy of 0.0005 in. per in., 0.0002 in. repeatability, and speeds up to 20 rps.

THK America, Inc.    Schaumburg, IL 60173 5340
Dec 10, 2002 Type SKR Actuator includes LM Guide and Ballscrew with Caged Technology, which isolates each load carrying re-circulating element in LM guides within individual cage or pocket. Preventing ball-to-ball contact and associated friction, cage also acts as reservoir for lubricants, eliminating need for external lubricating system. Producing little dust, unit is available in outer rail lengths from 150–740 mm and stroke ranges of 55–608.5 mm.

Ultra Motion    Cutchogue, NY 11935
Dec 02, 2002 Smart Digit and Smart Bug actuators include optical encoder, digital servo amp, indexer, local power supply, and serial communications interface. With 1 µ repeatability and .5 µ resolution, actuators are available in 2, 4, and 8 in. stroke lengths. Directly coupled to drive screw, Smart Digit units move at speeds to 25 ips with 120 lb of force max. Smart Bug units incorporate nonslip timing belt with ratios from 1:1 to 4:1 and move at speeds to 40 ips, providing 500 lbs of force max.

THK America, Inc.    Schaumburg, IL 60173 5340
Nov 25, 2002 Model KR15 LM combines miniature LM Guide and miniature ballscrew in 1 block. Actuator uses 4-row circular contact, resulting in low fluctuation of rolling resistance under load. With stainless steel, cold drawn outer rail construction, unit is available in high grades and precision grades with positioning accuracies of 0.040 and 0.020 mm, respectively. Rail lengths range from 75–200 mm, dynamic load rating is 1930 C (N), and static load rating is 3450 C0 (N).

Haydon Switch & Instrument, Inc.    Waterbury, CT 06705 3910
Nov 25, 2002 Suited for extremely harsh environmental conditions and military applications, product is available with various sizes of hybrid linear actuators. Size 23 linear actuator incorporates encoder for feedback information. Maximum force is rated at 200 lb, and incremental movement per step ranges from .0004167 in. per step to 0.002 in. Additional models are available that can develop forces up to 500 lb with step increments of 0.00006–.005 in.

Oriental Motor U.S.A. Corp.    Torrance, CA 90502
Nov 20, 2002 Series DRL combines 5-phase hybrid stepping motor with ball screw in 3 frame sizes. Ground ball screw version, Model DRL28PA1-03D produces max thrust of 6.7 lb force over 1.18 in. stroke. Model DRL28PB1-03D has same force and stroke but achieves accuracy at ±0.00039 in. Model DRL42PA2-04D produces 22 lb force over 1.57 in. stroke and DRL42PB2-04D is the same, with accuracy of ±0.00039 in. Model DRL60PA4-05D reaches 66 lb thrust force over 1.97 in. stroke.

THK America, Inc.    Schaumburg, IL 60173 5340
Nov 15, 2002 Type ELA is designed with ground ball screw, ball splines and angular bearings. Ball spline enables actuator to accept each load of torque, radial, and moment. Absence of oil leaks or air mist emissions makes actuator environmentally friendly. Unit is offered in Type 10 and Type 20 models with strokes ranging from 40 to 200 mm. Wrap kits are optional.

SKF Motion Technologies    Lansdale, PA 19446
Nov 08, 2002 SKF® MediMove consists of actuators, recliners, and control units and panels, which can be integrated into beds to provide secure movement, positioning, and control. They offer variable height adjustment; adjustable backrest with CPR function; special positioning with autocontour function for comfortable sitting; and adjustable elevation of legs and knee-fold. Full electrical control is made possible by handsets, bilateral pedals, and selective function limiters.

SKF Motion Technologies    Lansdale, PA 19446
Nov 07, 2002 SKF® roller screws, for linear-actuation applications, sustain static loads up to 1,000 tons and dynamic loads up to 200 tons. Planetary roller screws feature threaded nuts, rollers, and screw shafts. Planetary motion eliminates need to recirculate rolling elements, meaning fewer components, smoother operation, and longer life. Recirculating roller screws allow for fine-lead threads, as small as 1 mm, and feature threaded shaft, nut threaded to same lead, and set of grooved rollers.

Servo Magnetics Inc.    Canoga Park, CA 91303
Nov 07, 2002 Linear voice-coil actuator features low-mass, inner-moving coil and oil-impregnated, sintered-bronze bearing for quick mechanical response times. Device allows application of force directly in linear direction, eliminating need for mechanical conversion device such as ball screw or gearbox. Linear motor measures 1.25 in. diameter by 1.375 in. long and produces peak forces greater than 3.5 lb with approximately 45 W of power.

EADmotors/Eastern Air Devices, Inc.    Dover, NH 03820
Nov 05, 2002 Brushless DC servomotor-based actuator, with precision ball screw and low-profile encoder, provides linear speeds up to 5,000 rpm and closed-loop control. Compatible with all 3-phase brushless DC motor amplifiers, NEMA size 23 motor offers permanently lubricated ball bearings and dynamically balanced rotor. Compact, 2.0 in. motor length provides up to 80 oz-in. peak torque. Applications include medical equipment, semiconductor, robotics, and syringe pumps.