AL2018-0001-0001 Beckhoff
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The Beckhoff AL2018-0001-0001 is a linear servo motor from the AL Linear Motors series, featuring an air gap of 0.5 mm and a coil unit weight of 3.8 kilograms. It is equipped with M23 and D-Sub connectors, delivers a continuous force of 600 Newtons with a continuous current of 13.36 Amps, and can reach a peak force of 1350 Newtons. The motor has a pole pitch of 24 mm and supports a maximum velocity of 7 meters per second.
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Product Description:
The AL2018-0001-0001 coil unit is manufactured by Beckhoff and belongs to the AL Linear Motors series. Designed for the company’s linear servo motors, it acts as the active force-producing component that moves over a magnet track to drive gantry axes, pick-and-place modules, or other high-acceleration stages. By combining low moving mass with precise current control, the unit supplies direct thrust without belts or gearboxes, allowing tight path accuracy and reduced maintenance in automated production lines.
At rated conditions, the coil generates a continuous thrust of 600 N while dissipating 450 W of heat through natural convection; this duty requires a phase current of 13.36 A. The winding consists of 18 individual coils wound in the speed design, giving a low electrical time constant that supports linear travel up to 7 m/s. For rapid indexing, the drive can be overexcited to deliver a peak force of 1350 N with a corresponding peak current of 41.0 A. Copper losses are moderated by a motor constant of 1140 N²/W, a winding resistance of 1.18 Ω, and an inductance of 8.8 mH. Thermal resistance between the winding and mounting surface is 0.16 °C/W, while the integrated 1 kΩ PTC and KTY83-122 sensors report temperature to the servo drive. The coil weighs 3.8 kg, measures 80 mm in width, and connects through paired M23 power and D-Sub feedback connectors.
Mechanical integration requires a fixed air gap of 0.5 mm between the coil and the permanent-magnet platen, matching the pole geometry in which each field cycle spans 24 mm of travel. The attraction force toward the track reaches 2450 N, so machine frames must accommodate this preload. Heat storage is governed by a thermal time constant of 77 s, permitting rapid duty-cycle changes before the unit reaches its steady-state thermal limits. Operation does not require water cooling, which eliminates the need for pumps, hoses, and other components associated with a liquid-cooling circuit.
