AMP Releases New Line of Linear Actuators

By Joel Davies -

Applied Motion Products (AMP), the US-based motion control provider, has released a new line of linear actuators complete with StepSERVO™ equipped integrated motors.

Available from Mclennan, AMP’s European distribution partner, the new StepSERVO Smart Actuators are available with NEMA 11, 14, 17 or 23 frame motors configured with built-in ball or lead screw mechanics. The MLA and MCB series are moving carriage designs whilst the MLT series is a pushrod-style actuator. AMP’s StepSERVO™ technology combines a digital closed-loop servo drive, encoder feedback and several options for motion control and communications in a single integrated package that delivers more torque, acceleration, speed, accuracy, and efficiency over conventional open-loop stepper motor systems.

The new actuators are based around AMP’s range of Screw Motors – hybrid stepper motors where the standard motor shaft is replaced with a lead screw assembly. MLA- and MCB-Smart series linear actuators feature an extruded aluminium rail and support system with a moving load-carrying carriage. These versions are available in NEMA frame motor sizes 11, 14 and 23. Users can choose various ball/lead screw pitches and nut material options with leads from 1 to 10 mm to suit their positioning resolution and speed requirements – speeds up to 100 mm/sec are available.

The largest actuator, with its 23-frame motor, has a maximum stroke of 250 mm and a maximum load capacity of 7 kg horizontal and 4.4 kg vertical. The direct integration of the screw into the motor allows a coupling-free design that saves space for a more compact solution. The MCB version includes a dust seal and fully shrouded motor whilst the lower cost MLA offers is an open-frame housing design for use in clean environments. Both versions include mounting fixtures.

The MLT series pushrod style actuator is also based around the AMP’s Screw Motors in NEMA 11 or 17 frame sizes. Well suited for miniature push, pull, lift, and press applications, a choice of lead screw or ball screw mechanics provides users with a wide scope of cost vs. performance options. The largest MLT actuator can deliver a thrust force up to 300 N and speeds to 250 mm/sec with low vibration and low noise operation. AMP’s Screw Motors are available as separate components without StepSERVO for use with independent drives and controls.

These new StepSERVO™ Smart actuators utilise AMP’s closed-loop stepper technology for direct onboard motor drive, programming, and optional networking. This decentralised approach sees benefits in reduced installation cost through minimised machine wiring, faster machine build and design time and a control concept that is complementary to Industry 4.0.

The new Smart actuators are available with a wide choice of control options including step/direction, +/- 10V DC torque/velocity and positioning as well as AMP’s Q Programming which provides streaming commands with maths and machine I/O control functions. RS232 or RS485, Modbus RTU and CANopen communications are on hand as well as EtherNet/IP and Power over Ethernet(PoE). The 23 frame StepSERVO can be supplied with absolute encoder feedback. AMP’s StepSERVOs are also available as separate integrated motors with these options in NEMA frame sizes from 11 to 34.

You can find more information about AMP and its new range of linear actuators on its website.

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