AL2418-0000-0000 Beckhoff
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The Beckhoff AL2418-0000-0000 is a linear servo motor from the AL Linear Motors series with a continuous force of 360 Newtons and a peak force of 720 Newtons. It operates with a continuous current of 4.56 Amps, a peak current of 12.30 Amps, and has a maximum velocity of 4.5 meters per second. The motor features a pole pitch of 24 mm, an air gap of 0.5 mm, and is designed without water cooling.
Internal Product Review
The AL2418-0000-0000 is a Beckhoff linear servo motor built for precise, high-response motion control. Continuous force of 360 N and peak force of 720 N give this unit impressive thrust capacity for demanding linear axes. A maximum velocity of 4.5 m/s makes this model an excellent fit for fast, accurate servo motion.
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Product Description:
The AL2418-0000-0000 is a moving-coil module from Beckhoff’s AL Linear Motors series and belongs to the company’s range of linear servo motors. In an automation cell, it supplies direct linear thrust along an iron-backed track, eliminating gearboxes and ball screws. The unit acts as an electromechanical actuator that converts drive current into controlled force for pick-and-place axes, gantry stages, or high-speed feeders where precise positioning and repeatable velocity are required. Because motion is produced magnetically across a small air gap, mechanical wear is minimized compared with systems that convert rotary motion through a screw mechanism.
The motor delivers a continuous force of 360 N when the drive supplies 4.56 A of phase current, following a force constant of 79 N/A. For acceleration bursts, the winding tolerates 12.30 A and generates a peak thrust of 720 N without demagnetization. Magnetic poles repeat every 24 mm, providing the commutation pitch used with the encoder for smooth travel. The mover is 50 mm wide and contains 18 coils arranged in a normal winding pattern, allowing it to propel loads at speeds up to 4.5 m/s. Copper and core losses reach 296 W during continuous operation, and heat exits through natural conduction because the motor does not use water cooling. Permanent magnets exert 1,300 N of attraction toward the secondary track, so the mechanical guidance system must withstand that preload. Power and feedback leads are supplied without connectors, allowing the use of custom cable assemblies.
The winding has an inductance of 46 mH and a resistance of 7.2 Ω, which the servo drive uses when tuning its current regulators. Back electromotive force rises at 45.96 V/m/s, so sufficient bus voltage must be available during high-speed movement. The winding has a thermal time constant of 75 seconds, which moderates rapid temperature changes during intermittent operating cycles. A working clearance of 0.5 mm between the mover and track maintains consistent magnetic flux while preventing mechanical contact. Proper alignment of the guidance system helps preserve this clearance throughout the permitted travel range and under the magnetic preload.
