46′-53′ Extendable 4-Axle Chassis General Specs
Tare Weight:
Approximately 13,700 lb.
GVWR:
Configuration dependent: 64,500-90,000 lb.
Steel & Fasteners:
All structural steel is ASTM-A572, Grade 50, or ASTM-A607, Grade 50 or better unless otherwise specified. All structural fasteners are Grade 5 or better and are zinc coated
Main Beams:
Fabricated I-beam with high-tensile steel
Cross Member:
Fabricated steel
Upper Coupler Assembly:
5/16″-thick pick up plate
Fifth Wheel Height:
46 inches
Front Bolster:
Fabricated with twist-locks
Rear Bolster:
Fabricated with retractable twist-locks
Intermediate Bolsters:
Fabricated with retractable twist-locks
ICC Bumper:
Tube: 47″ long
Mud Flaps:
30″ × 24″ white plastic
Electrical System:
12 volt, 7-way split pin receptacle plug mounted on roadside
Slider Mechanism:
Air-operated locking pins
Overall Length Closed:
45.9 feet
Overall Length Extended:
52.9 feet
Dimensions
Overall Chassis Width:
102 inches
Maximum Rear Height:
Approximately 50 inches
Landing Gear
Landing Gear:
AAR-approved two speed with square leg. 55,000-lb. lift capacity and 160,000-lb. static load capacity.
Landing Gear Foot Group:
10″ × 10″ low profile sandshoe
Crank Handle Location:
Roadside
Lighting
Light Attachment:
Flange mounted
Light Type:
LED
Brakes
Drum:
Steel outboard mounted
Lubrication:
Synthetic grease
Brake System Type:
4S2M
Brake Chambers:
Three sets of 30/30, one set of 12
Wheels
Rims:
Steel 22.5″ × 8.25″ hub piloted tubeless
Tire Size:
295/75R 22.5
Hub Type:
Steel
Axles
Axle Type:
5″ round, three parallel (tridem) and one tapered (lift axle), three 77.5″ long (tridem) and one 92″ long (lift axle)
Axle Quantity:
Four: rear tridem with front lift axle
Axle Centers:
61 inches
Triaxle Location:
86.5 inches from center axle to rear of the trailer
Kingpin Location:
15 inches from the front of trailer
Suspension
Suspension Type:
Three-leaf spring ride; air ride front lift axle
Finish
Metal Preparation:
Clean, dry steel and NACE No. 3 /SSPC-SP-6 commercial blast cleaning
Primer:
Zinc-rich primer
Topcoat:
Black Urethane
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