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KST4000 Series Rack and Pinion Servo Tractor
Knight Global's KST4000 Series Rack and Pinion Servo Tractors is a stand alone tractor that is designed to accurately locate, push, tow and position loads that are suspended from a trolley on an overhead rail system. Tractors significantly reduce the push/ pull forces as well as the energy to sustain movements. Knight's KST4000 Series Servo Tractors have Knight's (IAD) Intelligent Assist Device Servo Technology incorporated into their design allowing them to provide controlled transfers of workloads with speed and precision. Rack and Pinion Tractors can be programmed to automatically or manually move and stop the runway (X Axis) or bridge (Y Axis) at intended locations with repeatable accuracy; thus eliminating unnecessary motions. (Knight Servo Tractors can also be programmed for assembly line speed synchronization).

The KST4000 Servo Tractor offers a continuous contact non-slip rack and pinion design. This continuous non-slip design allows for a more accurate positioning of the load. Movement of the Servo Tractor is controlled by a two speed pendant, and can be programmed for multiple positions.
  • Features
  • Configurations
  • Specifications
  • Accessories
Knight Global KST4000 Series Rack and Pinion Servo Tractor
Mechanical Features
• Variable Maximum Speed:
  - Up to 261 ft. per min. [79mpm].
• Maximum Towing Capacity:
  - Up to 4,000 lbs. [1,814.37kg].
Non-Slip Rack and Pinion Drive System.
• Clutch (24 VDC).
• Power and Free Drive Wheel.
• Absolute Positioning.
Software Features
• Programming and Diagnostic
  Communication Ports.
• Virtual Travel Limits.
• Speed Reduction Zones.
Electrical Features
• Industry Standard 24 VDC, 2 AMP power
  is available for custom tooling such as:
  Clamps, Vacuum Cups, Switches,
  Proximity Limits, Lights, etc.
H5 Rated (Continuous Duty Cycle).
240VAC, Single Phase, 50/60 Hz.
• I/O Capabilities.
• LED Status Indicators.
• LED Fault Diagnostics.
• Illuminated Run/ Stop Button.
• Optional Control Handle Pendant.
KST Series Configuration
Click on image below to view/print

Knight Global KST Series Configuration

Knight Global KST4000 Series Rack and Pinion Servo Tractor
KST4000 Series Rack and Pinion Servo Tractor Specifications
Towing Capacity
lbs. [kg]
Maximum Speed
Voltage/ Phase
4,000 [1,814.37]
261.8 fpm. [79mpm]
240 / 1 Phase
4,000 [1,814.37]
174.53 fpm. [53.2mpm]
240 / 1 Phase
Knight Global - Made in the USA
CE Certification
2011-2015 Knight Global. All Rights Reserved
* Due to continuous product development, Knight Global reserves the right to alter product specifications without notice *
2705 Commerce Parkway, Auburn Hills MI 48326 U.S.A. Ph: 248.377.4950 Fx: 248.377.2135
ISO9001 Certification
ISO14001:2008 Certification