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SFS91 Series

Servo Finishing Stand

The PushCorp SFS91 Servo Finishing Stand combines compliant force control with a high-torque servo motor. This precise force and speed control allows you to achieve unprecedented levels of quality and consistency.

The SFS91 Servo Finishing Stand is designed to enable maximum flexibility for any part-in-hand (i.e. grinding, sanding, buffing or polishing) application.  Linear travel compliance and excellent media access allow a robot to easily manipulate small parts over the  contact wheels.

The contact wheels of the SFS91 Servo Finishing Stand are belt driven by a high-torque servo motor.  This drive system has a 1.5:1 reduction that provides plenty of power at the contact wheels.

Here are just a few operations the SFS91 Servo Finishing Stand, matched with the proper process equipment, can accomplish faster, more accurately, and with greater control than ever before:

  • Casting gate removal
  • Deburring (parting lines, chamfer)
  • Polishing (glass, wood, metal)
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SFS91 With Controllerl


  • Passive Force Control
  • Servo motor amplifier included
  • Contact wheel position output
  • Accurate media speed control
  • 1.4 in [36 mm] linear compliant stroke
  • All fittings, fasteners, and threaded holes are METRIC
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Max Applied Force: 250 lbs [1112 N]
Force Resolution:2.6 lbs/psi [166 N/Bar]
Compliant Stroke:1.4 in [36 mm]
415 lbs [188.2 kg]
Supply Air:Dry, 5µm Filtered, Non-lubricated, 80 psi [5.5 Bar] max
Horsepower:16.5 hp [12.3 kW]
Continuous Stall Torque:62 lb· ft [84 N·m]
Output Shaft Speed:0-1400 rpm (Reversible)
Specifications subject to change without notice.
U.S. Patent No. 5,448,146