Tractors are devices designed primarily to push, pull, lift and position a load that is suspended from a trolley on an overhead rail system. Tractors significantly overcome ergonomically unfavorable push/pull forces. Available in electric and pneumatic configurations.
Electric Tractors
VFD (Variable Frequency Drive) Tractors provide the operator with complete control via the ability to program acceleration and deceleration speeds. The VFD Electric Tractor can also be configured to run on different Knight rail as well as different manufactures rail systems. The Knight VFD Electric Tractor has a modular assembly design that allows easy installation
and set-up. They are equipped with Knight’s proven pneumatic tractor mechanics using a worm gear reducer that is reliable and maintenance free.
Pneumatic Tractors
Knight’s Pneumatic Tractors provide mobility by towing bridges, fixtures and heavier loads. They typically are used to assist an operator to push, pull, or position loads. Pneumatic Tractors can be integrated with a pneumatic fixture allowing for multiple control configurations such as: automatic return home, conveying of a load to the next position, starting and stopping limits with the use of air logic, etc. Pneumatic Tractorsare available in multiple configurations and have maximum towing capacities of up to 2,000 lbs. [907kg].
Servo Tractor Systems
The Servo Tractor Hoist Series accurately locates, transfers and lifts loads
in the X, Y and Z directions. Servo Tractors have Knight Global’s Intelligent
Assist Device (IAD) Servo Technology incorporated into their design allowing them to provide controlled transfers of workloads with speed and precision.
Dual speed pendant.
• 1/2 HP, 240/480 VAC, Single Phase
Inverter Motor.
• Hand clamp to engage/ lock tractor
into position with tension adjustments.
• Integral trolley.
• Dual rubber drive wheels that ride on
bottom of rail.
• Direct drive with programmable
acceleration and deceleration speeds.
• Capability of disengaging wheels to
allow for free wheeling. (Pnuematic Model)
Safety Rating of 125%
• Standard 24 VDC
• H5 Rated (Continuous Duty Cycle)
• 480 VAC, Three Phase 50/60 Hz
• Illuminated Run/Stop Button
• Power and Free Drive Wheel
• Programmable Overload Capability
• Fail Safe Braking
• Load Sensing, Pay Load and Handle Load
• Complete fixture integration.
• 24 VDC, Drive Clutch.
• Mid-rail and end of rail shock
absorbers.
• Programmable return to home
position function.
• Over travel limits.
• Power Rail configuration.
• Return to Home.
• Pneumatic engage cylinder for
disengaging tractor from the rail.
• Wireless control.
• Standard Float Mode
• Planetary Gearbox
• Programming/ Diagnostic
Communication Ports
• I/O Capabilities (16 In / 8 Out)
• LED Status Indicators
• LED Fault Diagnostics
• Virtual Travel Limits
• Speed Reduction Zones
• Active Dampening
• Impact Limiting
TRA5000-4110 – travels inside RAD4110 Series Rail. Product Weight: 87.9 lbs.[39.87kg]. TRA5000-7110 – travels inside RAD7510 Series Rail. Product Weight: 93.5 lbs. [42.41kg]. Maximum Speed: 1.9 ft. per sec [1.3mph].Maximum Towing Capacity: Up to 2,000 lbs. [908kg]. Maximum Air Consumption: 75 cfm. MCBF: >500,000 (>10,000,000 Linear ft.). Integrated Load Trolley.
TRA5500-4110 – travels inside RAD4110 Series Rail. Product Weight: 86.8 lbs. [39.37kg]. TRA5500-7510 – travels inside RAD7510 Series Rail.Product Weight: 92.5 lbs. [41.96kg]. Maximum Speed: 1.9 ft. per sec. [1.3mph]. Maximum Towing Capacity: Up to 2,000 lbs. [908kg]. Maximum Air Consumption: 52 cfm. MCBF: >500,000 (>10,000,000 Linear ft.).Integrated Load Trolley. Lube-Free Motor.
Maximum Speed: 180 ft. per min. [2.0mph]. Maximum Towing Capacity: 3,000 lbs. [1,360kg]. Integrated Load Trolley Dual Rubber Drive Wheels: rides on bottom of rail. Hand Clamp to engage and lock tractor in position.Direct Drive with programmable speeds, acceleration and deceleration points. VFDTA1001 Single Speed Pendant with Run-Stop/ Reset Button.Standard Inverter Motor: 1/3 HP, 230VAC. Standard VFD controller: 230VAC, Single Phase, for variable speeds. (2) Year Warranty. Product Weight: 90 lbs. [41kg].
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.
