您的位置：首页 > 产品 > 高精密定位平台 > 精密转台 > ALAR 机械轴承精密直驱转台
ALAR 机械轴承精密直驱转台 | ALAR Mechanical-Bearing Direct-Drive Rotary Stage
Aerotech的ALAR系列直驱转台提供卓越的角度定位和速度控制，并且拥有特别大的通孔。使用大通孔和直驱电机的组合，ALAR系列使得蜗轮蜗杆传动的大通孔转台成为了过去的事情。

ALAR Series Specifications

Model ALAR-100-SP ALAR-100-LP ALAR-150-SP ALAR-150-LP
Aperture 100 mm 100 mm 150 mm 150 mm
Motor S-180-44-A Brushless Slotless S-240-43-A Brushless Slotless
Continuous Current Apk 2.7 A 5.76 A 6.2 A 5.41 A
Arms 1.9 A 4.1 A 4.4 A 4.1 A
Peak Current, Stall Apk 10.8 A 33.5 A 24.8 A 31.4 A
Arms 7.6 A 23.7 A 17.5 A 22.2 A
Bus Voltage Up to 340 VDC
Length 250 mm 250 mm 300 mm 300 mm
Width 250 mm 250 mm 300 mm 300 mm
Height 100 mm 65 mm 100 mm 65 mm
Unlimited Travel Yes
Maximum Limited Travel ±170° ±170° ±170° ±170°
Maximum Velocity @ 160 V Bus(1) 300 rpm 50 rpm 250 rpm 45 rpm
Maximum Acceleration 1364 rad/s2 1009 rad/s2 1330 rad/s2 829 rad/s2
Resolution(2) 0.1 μrad
(0.02 arc sec) 		0.1 μrad
(0.02 arc sec) 		0.08 μrad
(0.016 arc sec) 		0.09 μrad
(0.018 arc sec)
Maximum Torque 23.9 N-m 11.9 N-m 42.9 N-m 15.4 N-m
Continuous Torque 6.0 N-m 2.0 N-m 10.7 N-m 2.6 N-m
Stage Mass
 16.3 kg
 8.3 kg
 18.6 kg
 9.8 kg
Stage Mass with Limits 17 kg
 8.9 kg
 19.6 kg
 10.8 kg
Shaft Inertia 0.022 kg-m2 0.022 kg-m2 0.040 kg-m2 0.031 kg-m2
Shaft Inertia with Limits 0.026 kg-m2 0.026 kg-m2 0.051 kg-m2 0.042 kg-m2
Axial Load 1550 N (348 lb) 1175 N (264 lb) 1950 N (438 lb) 1325 N (298 lb)
Radial Load 1350 N (303 lb) 950 N (214 lb) 1925 N (433 lb) 1275 N (287 lb)
Moment Load 250 N-m 150(3) N-m 450 N-m 225(3) N-m
Repeatability ±2.4 μrad (±0.5 arc sec)
Accuracy(4) ±9.7 μrad (±2 arc sec)
Tilt-Error Motion 9.7 μrad (2.0 arc sec)
  1. Square-wave digital encoder options will limit maximum speed below the listed value. Contact factory for specific stage and encoder speed combination.
  2. Resolution assumes -AS encoder with 2000X controller multiplication.
  3. The ALAR-LP base must be fully supported by a rigid mounting plate to achieve this moment load.
  4. Certified with each stage. Requires the use of an Aerotech controller.

ALAR Series Specifications

Model ALAR-200-SP ALAR-200-LP ALAR-250-SP-2 ALAR-250-SP-3 ALAR-250-LP
Aperture 200 mm 200 mm 250 mm 250 mm 250 mm
Motor Brushless Slotless
Continuous Current Apk 5.3 5.3 5.3 7.95 5.3
Arms 3.75 3.75 3.75 5.62 3.75
Peak Current, Stall Apk 34.8 34.8 34.8 52.2 34.8
Arms 24.6 24.6 24.6 36.9 24.6
Bus Voltage Up to 340 VDC
Length 400 mm 400 mm 450 mm 450 mm 450 mm
Width 400 mm 400 mm 450 mm 450 mm 450 mm
Height 150 mm 100 mm 150 mm 150 mm 100 mm
Unlimited Travel Yes
Maximum Limited Travel ±170° ±170° ±170° ±170° ±170°
Maximum Velocity(1) 90 rpm 90 rpm 140 rpm 140 rpm 90 rpm
Maximum Acceleration 361 rad/s2 570 rad/s2 287 rad/s2 287 rad/s2 407 rad/s2
Resolution(2) 0.06 μrad
(0.012 arc sec) 		0.07 μrad
(0.014 arc sec) 		0.05 μrad
(0.01 arc sec) 		0.05 μrad
(0.01 arc sec) 		0.05 μrad
(0.01 arc sec)
Maximum Torque 86 N-m 86 N-m 92 N-m 138 N-m 92 N-m
Continuous Torque 12.9 N-m 12.9 N-m 14.1 N-m 21.1 N-m 14.1 N-m
Stage Mass
 40.4 kg
 28.2 kg
 51.3 kg
 51.3 kg
 35.0 kg
Stage Mass with Limits 43.1 kg
 30.1 kg
 54.5 kg
 54.5 kg
 37.4 kg
Shaft Inertia 0.320 kg-m2 0.190 kg-m2 0.500 kg-m2 0.500 kg-m2 0.310 kg-m2
Shaft Inertia with Limits 0.359 kg-m2 0.229 kg-m2 0.573 kg-m2 0.573 kg-m2 0.383 kg-m2
Axial Load 4675 N (1051 lb) 4350 N (978 lb) 4950 N (1113 lb) 4950 N (1113 lb) 4950 N (1113 lb)
Radial Load 4775 N (1073 lb) 4125 N (927 lb) 5200 N (1169 lb) 5200 N (1169 lb) 5050 N (1135 lb)
Moment Load 1600 N-m 1075(3) N-m 1825 N-m 1825 N-m 1475(3) N-m
Repeatability ±2.4 μrad (±0.5 arc sec)
Accuracy(4) ±9.7 μrad (±2 arc sec)
Tilt-Error Motion 9.7 μrad (2.0 arc sec)
  1. Square-wave digital encoder options will limit maximum speed below the listed value. Contact factory for specific stage and encoder speed combination.
  2. Resolution assumes -AS encoder with 2000X controller multiplication.
  3. The ALAR-LP base must be fully supported by a rigid mounting plate to achieve this moment load.
  4. Certified with each stage. Requires the use of an Aerotech controller.

ALAR Series Specifications

Model ALAR-325-SP-2 ALAR-325-SP-3 ALAR-325-LP
Aperture 325 mm 325 mm 325 mm
Motor Brushless Slotless
Continuous Current Apk 5.1 7.65 5.1
Arms 3.63 5.41 3.63
Peak Current, Stall Apk 31.2 46.8 31.2
Arms 22.1 33.1 22.1
Bus Voltage Up to 340 VDC
Length 525 mm 525 mm 525 mm
Width 525 mm 525 mm 525 mm
Height 150 mm 150 mm 100 mm
Unlimited Travel Yes
Maximum Limited Travel ±170° ±170° ±170°
Maximum Velocity(1) 150 rpm 150 rpm 120 rpm
Maximum Acceleration 185 rad/s2 185 rad/s2 339 rad/s2
Resolution(2) 0.04 μrad (0.009 arc sec) 0.04 μrad (0.009 arc sec) 0.04 μrad (0.009 arc sec)
Maximum Torque 143 N-m (1265.7 lb-in) 214.9 N-m (1902.0 lb-in) 143 N-m (1265.7 lb-in)
Continuous Torque 23.4 N-m 35.1 N-m 23.4 N-m
Stage Mass
 61.2 kg
 61.2 kg
 44.5 kg
Stage Mass with Limits 64.9 kg
 64.9 kg
 49.9 kg
Shaft Inertia 1.01 kg-m2 1.01 kg-m2 0.55 kg-m2
Shaft Inertia with Limits 1.2 kg-m2 1.2 kg-m2 0.675 kg-m2
Axial Load 5825 N (1310 lb) 5825 N (1310 lb) 5825 N (1310 lb)
Radial Load 6650 N (1495 lb) 6650 N (1495 lb) 6450 N (1450 lb)
Moment Load 2650 N-m 2650 N-m 2200(3) N-m
Repeatability ±2.4 μrad (±0.5 arc sec)
Accuracy(4) ±9.7 μrad (±2 arc sec)
Tilt-Error Motion 9.7 μrad (2.0 arc sec)
  1. Square-wave digital encoder options will limit maximum speed below the listed value. Contact factory for specific stage and encoder speed combination.
  2. Resolution assumes -AS encoder with 2000X controller multiplication.
  3. The ALAR-LP base must be fully supported by a rigid mounting plate to achieve this moment load.
  4. Certified with each stage. Requires the use of an Aerotech controller.

Dimensions

  • ALAR-100-SP
  • ALAR-100-LP
  • ALAR-150-SP
  • ALAR-150-LP
  • ALAR-200-SP
  • ALAR-200-LP
  • ALAR-250-SP
  • ALAR-250-LP
  • ALAR-325-SP
  • ALAR-325-LP



Ordering Information


Encoder Type

Option Description
-CT Continuous Travel Internal Encoder

Encoder Output Options

Option Description
-AS Standard feedback device; 1 Vpp sine wave output; multiply the selected stage resolution by the encoder multiplier to get final resolution of counts per rev
-X5 Square-wave digital output which includes a 5-times multiplier; multiply the selected stage encoder lines by 20 to get the final resolution of counts per rev*
-X10 Square-wave digital output which includes a 10-times multiplier; multiply the selected stage encoder lines by 40 to get the final resolution of counts per rev*
-X25 Square-wave digital output which includes a 25-times multiplier; multiply the selected stage encoder lines by 100 to get the final resolution of counts per rev*
-X50 Square-wave digital output which includes a 50-times multiplier; multiply the selected stage encoder lines by 200 to get the final resolution of counts per rev*
RE-ABS Rotary encoder, absolute - contact factory (compatible with HPe, HLe, CP, and CL drives only)

Note: * indicates this includes controller quadrature; X5, X10, X25, X50 square-wave encoder options have limited bandwidth and may not reach stage max speed. Please contact factory to confirm speed per stage.

Limit Options

Option Description
-UNLIMITED No travel limits or hardstops; valid only with -CT encoder type
-LIx Normally-closed limits at x degrees total travel, where x = 10/20/30/60/90/120/180/240/300/340; integrated hardstops 5 degrees past LI limit switch angles; other travel angles available by special order; increases stage height by 10 mm; can be used with -CT or -LT encoder types; ALAR-250 and ALAR-325 hardstops are special order only; contact the factory for pricing