RPM AC Extruder Duty

Robust, power dense ABB Baldor-Reliance® RPM AC motors are ideal for extruder applications and the plastics industry.

Built for Extrusion: Constant Torque. Inverter Ready.

The ABB Baldor-Reliance® RPM AC Extruder Duty motors are ideal for extruder applications because they deliver constant torque across a 1000:1 speed range, ensuring smooth, controlled operation even at very low speeds—critical for maintaining consistent material output. 

 

Their low-inertia design enables fast response to load changes, while standard inverter-duty features like insulated bearings, grounding brush and resistance temperature detector (RTD) ensure reliable performance in demanding, continuous-duty environments.

Technical data

Ideal for extruder duty, rewind/ unwind, converting, mill, rubber and plastic processing lines where variable speed with high torque at low speeds is essential.

Up to 1000Hp

Power range 25 - 1000Hp (18.6 - 746kW).

Protection Class H

Insulation system for maximum reliability and inverter use.

Frame DPG-FV

(Drip-proof guarded, force ventilated) square laminated frame (RL2586Z - RL4473Z).

Ingress protection IP23

Open design to be used in relatively clean environment.

Torque range 1000:1

Constant torque from 0 to base; 150% available torque.

Up to 80%

less rotor inertia compared to standard NEMA frame motors, enabling faster acceleration and improved drive response.

Explore the key features and benefits

Combining encoder feedback with robust inverter-duty construction, the RPM AC Extruder Duty motor delivers precise speed and torque control for smoother operation, greater accuracy and improved process quality.

Fit for purpose

Specifically engineered to handle the constant torque, low-speed precision and thermal demands of extruders.

Space-saving

Extremely power dense square laminated frame design (up to 3 frame sizes smaller than standard NEMA frame).

Inverter Duty

Inverter duty and suitable for adjustable frequency power in scalar mode. Includes integral shaft grounding brush as standard to mitigate against bearing currents.

Synchronous speed

Operates at true synchronous speed regardless of loads. Constant‑torque performance rated 1000:1 from zero to base speed.

Protection

Built-in winding RTDs and thermal protection help prevent overheating, enabling cooler, more reliable operation and longer motor life.

Premium features

Robust extruder duty insulation system, insulated bearings and premium mill-spec conduit box offered as standard.

Extended motor life

Insulated bearings, grounding brush, thermal sensors and inverter-ready design work together to protect the motor and extend its lifespan.

Discover ABB's Innovative Software and Tools

Unlock the power of ABB's cutting-edge software and tools designed to simplify your industrial electric motor journey. Whether you're selecting, configuring, replacing, or upgrading, our intuitive tools are here to guide you every step of the way. With ABB, finding the perfect match for your motor needs has never been easier. Explore now and make the most informed choice for your operations.

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Related Documents

RPM AC motors for extruder applications

Quick Ship Program

The RPM AC quick ship program is supported by the RPM AC quick ship configurator - now available within 4 weeks.

Motors and drives matched pairings for plastic extruders

RPM AC Extruder Duty motors and ACS880 drives

ABB supplies a broad portfolio of drives and motors that provide best in-class energy efficiency, enable fast machine setup and deliver high torque right down to zero speed.

Reliable Performance Pairing for Extruder OEMs

ACS880 and RPM AC motors

Whether your customers are extruding plastics or rubber materials for film, pipes, cables, or other products, you need drives and motors that maximize reliability and output quality.

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