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TRACTOR
DRIVE
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Power drive
for push-type hoists and underhung cranes.
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Tractor
drives deliver greater productivity with existing push-type
underhung crane bridges or push-type monorail hoists with motor-
driven travel. Designed for capacities up to 5 tons, Tractor
Drives are
easy to install without removing or disturbing existing equipment. |
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Underhung
Crane Bridges |
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Designed
to accommodate any make unit, twin tractor units of the same
design as the single unit tractor can be used to convert push-type
crane
bridges to electric drive. The twin unit synchronized Tractor
Drives are
wired to a universal electrical control panel located on the
master tractor
to provide simultaneous operation. |
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For
monorail trolley suspended hoists |
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This
single, powerful, electrically motorized tractor provides fast
horizontal travel while minimizing worker fatigue. A squirrel
cage electric
motor with torque multiplied by a heavy-duty gear reducer drives
a
urethane drive wheel. The drive wheel engages the underside
of the
monorail track, providing positive power drive. |
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| DIMENSIONS |
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MOTOR
- 1/2 hp @1800 rpm (1/4 hp @ 900 rpm for
35 fpm) Squirrel cage motor with permanently lubricated
bearings. Standard NEMA C face 30 minute motor with
Class F insulation. |
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BEAM
ADJUSTMENT RANGE - Standard unit is
adjustable for standard I-beams and flat-flange beams
from 3.38" to 8" wide. Maximum flange thickness for
standard unit is .62". Minimum curve for standard unit
is 36" radius. |
DRIVE
- Direct drive with right-angle worm gear
reducer. Fully enclosed aluminum housing for lubrication
of gears and bearings. |
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CONTROLS
- Magnetic reversing contractor with
mechanical interlock enclosed in a NEMA 1 enclosure
with a terminal strip for control connections. Standard
tractor is designed for 208-230/460 volt, 3 phase,
60 hertz supply. See options for other power supplies. |
DRIVE
WHEEL - Drive wheel is 6" diameter, 2" wide
with cast iron hub and a urethane thread. Wheel is spring
loaded against the bottom of the beam for positive traction. |
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CONSTRUCTION
- Steel plate construction with steel
tie-rods for easy adjustment. Steel clevis with a 3/8"
diameter pin is provided for towbar attachment. |
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STANDARD
FINISH - Air-dry machinery enamel. |
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OPTIONS
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575 volt, 3 phase, 60 hertz operation |
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2, 4 , 5 and 8 button push-button stations |
TROLLEY
WHEELS - Cast iron fully machined wheels
with universal tread for operation on tapered or flat-flange
beams. Each wheel has two permanently lubricated sealed
ball bearings. |
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Additional push-button cable length (10' standard) |
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NEMA 12, 4 or 4X control enclosures |
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Motor brake |
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Soft start (recommended for speeds above 70 fpm) |
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Two-speed or variable controls |
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Transformer for 115 volt power control |
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For other beams,
options or custom designs, consult us. |
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PRICING
FOR TRACTOR DRIVES
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| Single
unit for Monorail Hoists |
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| Capacities
to 5 tons |
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Cap. |
Speed |
Product Code |
Price |
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2000 |
35 |
TD-235 |
$2,608 |
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2000 |
55 |
TD-255 |
$2,608 |
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2000 |
70 |
TD-270 |
$2,608 |
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2000 |
105 |
TD-2105 |
$2,608 |
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3000 |
35 |
TD-335 |
$2,608 |
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3000 |
55 |
TD-355 |
$2,608 |
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3000 |
70 |
TD-370 |
$2,608 |
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3000 |
105 |
TD-3105 |
$2,608 |
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5000 |
35 |
TD-535 |
$2,608 |
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5000 |
55 |
TD-555 |
$2,608 |
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5000 |
70 |
TD-570 |
$2,608 |
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6000 |
35 |
TD-635 |
$2,608 |
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6000 |
55 |
TD-655 |
$2,608 |
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10000 |
35 |
TD-1035 |
$2,608 |
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Standard
unit is adjustable for standard I-beams
and flat flange beams from 3.38" to 8" wide. |
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Maximum
allowable flange thickness is .62".
For patented monorail applications (straight track
only) add $113. |
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Tractors
to operate on curved beams (36" min. radius
or larger) require flangeless wheels and guide rollers.
Add $507 to price. |
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Standard
Pricing Includes Transformer, Control
Fuse, 2-Button Pushbutton Station, 10-Foot Drop
Cable, and Strain Relief Chain. |
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Note:
Specify Required Voltage, Phase,
Frequency and Beam Size when ordering. |
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Options
&
Acc.
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Description |
Price |
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Standard Tow Bar (12" long) |
$124.12 |
Unit for single phase power (not available
for 35 FPM) |
$385.12 |
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Unit for 575V-3PH-60HZ power |
$151.96 |
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Weatherproof (NEMA 4) Control Enclosure |
$323.64 |
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Motor Brake |
$653.08 |
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24V Controls (in lieu of standard 115V) |
$177.48 |
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Mainline Contactor (does not include button) |
$353.80 |
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Motor Fuses, Holder, Enclosure |
$385.12 |
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Soft-start With Enclosure |
$581.16 |
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4-Button Push Assembly |
$439.64 |
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6-Button Push Assembly |
$639.16 |
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8-Button Push Assembly |
$769.08 |
Extra Pushbutton cable (includes strain relief)
Per ft. |
$5.39 |
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Delete 2-button pendant station, deduct |
($67) |
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Delete single speed controls, deduct |
($198) |
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2 Speed* (slow speed is 1/2 of listed speed) |
$881.60 |
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For
options or accessories not listed,
consult us for pricing and availability. |
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*
2-speed option not available on
35 FMP models |
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Chester Tractor
Drive, Power Drive for Push-Type Hoists, Underhung Cranes,
Motor Driven Trolleys, Trolley, Hoist
Trolley, Push-Type Monorail Hoists with Motor-Driven Travel,
Convert Push-Type Crane Bridges to Electric Drive,
and Monorail Trolley Suspended Hoists from your source for
material handling equipment.
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