Reduced length for hollow-shaft servo actuators
A
Heason Technology product story
Edited by the Engineeringtalk editorial team
Jun 18, 2001
A new generation of Harmonic Drive hollow-shaft, servo actuators has been reduced in length by a third compared with previous units, but offering superior performance
A new generation of Harmonic Drive hollow-shaft, servo actuators said to be reduced in length by a third compared with previous units, but offering superior performance, was launched at the Hanover Fair.
Succeeding the earlier FHA actuator units, the new 'C-class', available from Heason Technologies Group in the UK, enables engineers to save both on weight and space requirements.
Enhanced performance characteristics include: higher torque capacity (690Nm compared with 570Nm for the size 40 actuator); an absolute positioning accuracy of better than 30 sec.
arc plus repeatability of better than 5 sec.
arc; 30% increase in stiffness resulting from a new 'super' flat' gear component set; and 30% larger hollow-shaft diameter.
In addition, a range of different encoders can be attached to the motor shaft, permitting easy connection to a wide range of different servo drives and CNC control systems.
Options include: single- and multi-turn absolute encoders with 'Hyperface' interface, and Siemens 'Simodrive' compatibleSine/Cosine encoders.
The new FHA-C is available in three sizes (17C, 25C and 40C), all offer reduction ratios of 1:50 and 1:100.
Respective characteristics for the three units are: Pk torque, 57, 250 and 690Nm; Max speed, 96, 90 and 70; and Max hollow-shaft diameter, 18, 32 and 45mm.
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