Integrated servomotor actuator

Tolomatic's IMA55 integrated motor-actuator is capable of delivering up to 3,000 pounds of force and is designed for use in high-duty-cycle industrial applications.


Tolomatic's integrated-motor rod-style actuator is capable of delivering up to 3,000 lb of force with a standard ball screw. The IMA55 actuator integrated motor design is well suited for applications, such as pressing, clamping, valve control, spot welding and volumetric filling, the company said

“With the addition of the IMA55 actuator to Tolomatic’s integrated-motor actuator line, we now have compact actuators for high-duty-cycle industrial applications that range in force from several hundred to 3,000 pounds,” said Aaron Dietrich, marketing manager, Tolomatic. “The IMA55 actuator, with its integrated servomotor, is also shorter for a given stroke length than other types of rod-style actuators.”

The IMA55 actuator features a hollow-core rotor design that allows the nut of the screw to pass inside the rotor, creating a very compact package. This can decrease overall actuator length by as much as 18 inches compared to standard actuators due to the elimination of a separate motor, motor mount and gearbox. “In addition,” said Dietrich, “the skewed stator windings minimize the cogging of the motor and provide more efficient motion with improved force repeatability.” The Tolomatic IMA55 actuator with the standard ball-screw can exert a force of up to 3,000 pounds and move at a top speed of about 12 inches per second.

The IMA55 actuator is available with a choice of motor windings optimized for 230 or 460 V ac in any incremental stroke length from 6 inches to 18 in. Built with Tolomatic’s Endurance Technology features for maximum durability and extended service life, the IMA55 actuator has a patent-pending lead-screw lubrication system that allows easy relubrication without disassembly, the company said.


- Edited by Chris Vavra, Control Engineering, 

No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
Commissioning lighting control systems; 2016 Commissioning Giants; Design high-efficiency hot water systems for hospitals; Evaluating condensation and condensate
Solving HVAC challenges; Thermal comfort criteria; Liquid-immersion cooling; Specifying VRF systems; 2016 Product of the Year winners
MEP Giants; MEP Annual Report; Mergers and acquisitions; Passive, active fire protection; LED retrofits; HVAC energy efficiency
Driving motor efficiency; Preventing Arc Flash in mission critical facilities; Integrating alternative power and existing electrical systems
Putting COPS into context; Designing medium-voltage electrical systems; Planning and designing resilient, efficient data centers; The nine steps of designing generator fuel systems
Designing generator systems; Using online commissioning tools; Selective coordination best practices
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.
click me