The 3phase synchronous Linear Servomotors AL2800 expand the highperformance product range. The coil unit contains a grooved, laminated core with inlaid copper windings. It is generally used as the moving part. The magnet plate contains the steel plate to which the permanent magnets are fixed.
The AL2800 series consists of four different motors, all having exactly the same width of 130 mm. This means that all the motors can be operated using the same magnet plates. There are two different lengths of magnet plates that can be combined in any desired way. The magnet plates are fully sealed and therefore have an almost perfectly level and robust surface.
The coil units are also potted, satisfy protection class IP 64, and are therefore suitable for use in aggressive environments. Coil units are fitted with a 0.5 m cable bundle and optionally with preassembled connectors, so that they can be connected to the connector box or the Servo Drive via plugged connections. This greatly reduces the difficulty of implementing the cabling and makes a significant contribution to avoiding errors.
IIn combination with the EtherCAT Servo Drive AX5000, the AL2xxx series linear motors are particularly suitable for dynamic movements where high acceleration is required over short distances.
All linear motors of the series AL2xxx have the same magnet pitch (24 mm).
The motor connection is compatible with the other types of the AL2xxx series.
Features
Scaleless feedback system for Linear Servomotors
The MES system registers the magnetic field of the permanent magnets of the magnet plate. It sends, with the aid of builtin electronics, encoder signals for commutation as well as speed and position control to the AX5000 series Servo Drive. The MES provides one sine wave per 24 mm pole pitch and a precision of 1/10 mm.
Connector box
As a further accessory, Beckhoff offers an adapter box with motor, feedback and thermal protection line connected on one side. The preassembled motor and encoder lines can be attached on the other side.
Dimensions  b  la  h 

AL2812  130 mm  244 mm  45 mm 
AL2815  130 mm  290 mm  45 mm 
AL2818  130 mm  344 mm  47 mm 
AL2830  130 mm  562 mm  45 mm 
AL2845  130 mm  852 mm  47 mm 
* increased weight with watercooled primary section
Technical data  AL2812  AL2815  AL2818 

Winding type  N  S  
Max. speed  3 m/s (N), 6 m/s (S) 
2.5 m/s (N), 6 m/s (S) 
3 m/s (N), 6 m/s (S) 
Motor configuration  3phase synchronous Linear Servomotors (400…480 V AC)  
Peak force (FP)  1800 N  2250 N  2700 N 
Peak current (IPa)  13 A (N), 26 A (S) 
13.5 A (N), 33 A (S) 
19.6 A (N), 41 A (S) 
Continuous force with water cooling (Fcw)  –  –  1200 N 
Continuous force with air cooling (Fca)  760 N  950 N  1140 N 
Continuous current with water cooling (Icw)  –  –  6.5 A (N), 13.4 A (S) 
Continuous current with air cooling (Ica)  4.1 A (N), 8.2 A (S) 
4.2 A (N), 10.2 A (S) 
6.1 A (N), 12.7 A (S) 
Force constant (Kf)  186 N/A (N), 93 N/A (S) 
225 N/A (N), 93 N/A (S) 
186 N/A (N), 90 N/A (S) 
Motor constant (Km)  1750 N²/W  2150 N²/W  2580 N²/W 
Magnet pitch  24 mm  
Magnetic attraction force (Fa)  3400 N  4150 N  4900 N 
Weight of the coil (Mp)  4.9 kg  5.9 kg  7.3 kg 
Air gap  0.5 mm  
Temperature sensor  PTC 1 kΩ and KTY83122  
Corresponding Servo Drive  AX5x06 (N), AX5112 (S) 
AX5x06 (N), AX5118 (S) 
AX5112 (N), AX5118 (S) 
Technical data  AL2830  AL2845 

Winding type  N  S  
Max. speed  2.5 m/s (N), 6 m/s (S) 

Motor configuration  3phase synchronous Linear Servomotors (400…480 V AC)  
Peak force (FP)  4500 N  6750 N 
Peak current (IPa)  27 A (N), 66 A (S) 
41 A (N), 98 A (S) 
Continuous force with water cooling (Fcw)  2000 N  3000 N 
Continuous force with air cooling (Fca)  1900 N  2850 N 
Continuous current with water cooling (Icw)  8.9 A (N), 21.5 A (S) 
13.4 A (N), 32.3 A (S) 
Continuous current with air cooling (Ica)  8.5 A (N), 20 A (S) 
12.5 A (N), 31 A (S) 
Force constant (Kf)  225 N/A (N), 93 N/A (S) 

Motor constant (Km)  4300 N²/W  6450 N²/W 
Magnet pitch  24 mm  
Magnetic attraction force (Fa)  8300 N  12450 N 
Weight of the coil (Mp)  11.6 kg, (12.3 kg*) 
18.2 kg 
Air gap  0.5 mm  
Temperature sensor  PTC 1 kΩ and KTY83122  
Corresponding Servo Drive  AX5112 (N), AX5125 (S) 
AX5118 (N), AX5140 (S) 
Ordering information  AL28xx000x000y coil unit 

AL2812000x000y  Linear Servomotor, 400…480 V, Fp = 1800 N, F_{ca} = 760 N 
AL2815000x000y  Linear Servomotor, 400…480 V, Fp = 2250 N, F_{ca} = 950 N 
AL2818100x0000  Linear Servomotor, 400…480 V, Fp = 2700 N, Fcw = 1200 N, without connector plug, water cooling 
AL2830000x0000  Linear Servomotor, 400…480 V, Fp = 4500 N, F_{ca} = 1900 N 
AL2830100x0000  Linear Servomotor, 400…480 V, Fp = 4500 N, Fcw = 2000 N, water cooling 
AL2845100x0000  Linear Servomotor, 400…480 V, Fp = 6750 N, Fcw = 3000 N, water cooling 
Option x = 0: N type, x = 1: S type
Option y = 0: without connector plug, y = 1: with connector plugs (only possible with AL2812, AL2815 and AL2818!)
Ordering information  AL29xx0000 magnet plate 

AL29100000  magnetic assembly (lb = 192 mm, weight 10.5 kg/m), for AL28xx motors 
AL29200000  magnetic assembly (lb = 288 mm, weight 10.5 kg/m), for AL28xx motors 