Cat DP135 Specifications
The Caterpillar DP135 is a 30,000 lb capacity
diesel-powered forklift engineered for heavy-duty material handling applications
in demanding industrial environments. Powered by a Mitsubishi 6D16 diesel engine
and mated to a rugged 3-speed automatic Powershift transmission, this pneumatic
tire model delivers reliable performance for loading, unloading, and stacking
large loads.
The unit features a durable construction with
heavy-duty drive axle, air over hydraulic service brakes, and a range of
mast configurations to accommodate various lifting requirements. Known
for its robust engineering and serviceability, the DP135 represents
Caterpillar's commitment to producing heavy-duty material handling
equipment capable of operating in challenging environments while
maintaining productivity and operator comfort. The model was
manufactured from 1996 to 2014 with serial numbers beginning 5DP.
Engine Model: Mitsubishi 6D16
Engine Type: Four-cycle, water-cooled diesel
Number of Cylinders: 6
Displacement: 460 cu.in (7.5 L)
Continuous Output (SAE gross): 131 HP (98 kW) at 2,200 rpm
Maximum Torque (SAE gross): 347 lb-ft (480 Nm) at 1,400 rpm
Rated Speed: 2,200 rpm
Torque Speed: 1,400 rpm
Aspiration: Turbocharged
Fuel System: Direct injection diesel
Lubrication Type: Forced circulation with gear pump
Oil Filter: Full-flow cartridge type
Recommended Oil Viscosity: SAE 15W-40 diesel engine oil
Cooling Type: Water-cooled, forced circulation
Water Pump: Centrifugal type with belt drive
Radiator: Corrugated fin type with pressure cap
Thermostat: Wax pellet type
Cooling Fan: Suction type
Recommended Coolant: Ethylene glycol based antifreeze mixture
Transmission Type: Automatic Powershift
Number of Speeds: 3 forward / 3 reverse
Torque Converter: Single-stage, single-phase
Control: Hydraulic with column-mounted shift lever
Drive Control Type: Powershift with hydraulic modulation
Transmission Designation: Powershift with 3 speeds
Travel Speed (with load): 13.7 mph (22.0 km/h)
Travel Speed (without load): 20.5 mph (33.0 km/h)
Drive Axle (Front): Heavy-duty full-floating type with planetary wheel ends
Steer Axle (Rear): Mounted with trunnion-type articulation
Service Brake Type: Air over Hydraulic, foot-operated
Parking Brake: Mechanical, hand-operated
System Voltage: 12V
Battery: Lead-acid heavy-duty
Alternator: High-output
Starter Motor: High-torque
Frame Construction: Welded steel plate
Drive Configuration: 4x2 (front wheel drive)
Counterweight: Integrated into chassis design
Front Wheel Type: Disc wheel with dual configuration
Rear Wheel Type: Disc wheel
Number of Wheels: 4 front (dual) / 2 rear
Front Tire Size (standard dual drive tires): 12.00 x 20-18PR
Rear Tire Size: 12.00 x 20-18PR
Tire Type: Pneumatic with tube
Steering Type: Full hydrostatic power steering
Steering Control: Hydraulic with steering wheel
Steering Pump: Gear type, engine driven
Steering Cylinder: Double-acting hydraulic
Hydraulic System Type: Open center
Hydraulic Pump Type: Gear pump
Maximum Operating Pressure (for attachments): 2,465 psi (170 bar)
Mast Type: Standard two-stage mast
Maximum Fork Height with Rated Load: 217 in (5,510 mm)
Maximum Fork Height (standard two-stage mast): 133 in (3,300 mm)
Free Fork Height: 0 in (0 mm)
Lowered Mast Height: 137.2 in (3,485 mm)
Extended Mast Height: 205.9 in (5,230 mm)
Mast Tilt Forward: 15°
Mast Tilt Backward: 12°
Height to Top of Overhead Guard: 113.2 in (2,875 mm)
Fork Carriage Width: Accommodates 31.5 in to 78.5 in fork spacing
Rated Load Capacity: 30,000 lb (13,500 kg)
Load Center Distance: 24 in (600 mm)
Lift Speed (with load): 57 ft/min (290 mm/s)
Lift Speed (without load): 61 ft/min (310 mm/s)
Lowering Speed (with load): 75 ft/min (380 mm/s)
Lowering Speed (without load): 82 ft/min (420 mm/s)
Drawbar Pull (loaded at 1 mph, 60 min rating): 15,585 lb (69,332 N)
Drawbar Pull (loaded maximum, 5 min rating): 21,660 lb (96,339 N)
Gradeability (loaded at 1 mph): 21%
Gradeability (maximum loaded): 33%
Gradeability (maximum empty): 30%
Maximum Climbing Ability: 33% loaded
Overall Length to Fork Face: 178.3 in (4,530 mm)
Overall Length with Forks (48 in forks): 226.3 in (5,750 mm)
Overall Width (with standard dual drive tires): 102.4 in (2,600 mm)
Height to Top of Overhead Guard: 113.2 in (2,875 mm)
Seat Height: 70.5 in (1,790 mm)
Height with Mast Lowered: 137.2 in (3,485 mm)
Height with Mast Extended: 205.9 in (5,230 mm)
Wheelbase: 110.2 in (2,800 mm)
Front Tread Width (standard dual drive tires): 75 in (1,905 mm)
Rear Tread Width: 74.4 in (1,890 mm)
Ground Clearance (lowest point at mast): 10.2 in (260 mm)
Ground Clearance (center of wheelbase): 14.9 in (380 mm)
Load Moment Constant: 31.3 in (795 mm)
Fork Dimensions (thickness x width x length): 3.5x7.1x48 in (90x180x1,220 mm)
Fork Spacing (minimum out-to-out): 31.5 in (800 mm)
Fork Spacing (maximum out-to-out): 78.5 in (2,000 mm)
Minimum Outside Turning Radius: 163.8 in (4,160 mm)
Minimum Aisle Width (90° stack, zero clearance, without load): 195.1 in (4,956
mm)
Empty Weight: 38,190 lb (17,320 kg)
Axle Load with Rated Load (front): 60,990 lb (27,610 kg)
Axle Load with Rated Load (rear): 7,200 lb (3,210 kg)
Axle Load without Load (front): 16,450 lb (7,460 kg)
Axle Load without Load (rear): 21,740 lb (9,860 kg)
Engine Oil Change Interval: 250 hours
Engine Oil Filter Change Interval: 250 hours
Transmission Fluid Change Interval: 1,000 hours
Hydraulic Oil Change Interval: 2,000 hours
Hydraulic Filter Change Interval: 500 hours
Coolant Change Interval: 2,000 hours or 2 years
Differential Oil Change Interval: 1,000 hours
Air Cleaner Element Replacement: When indicator shows restriction
Fuel Filter Replacement: 500 hours
Lubrication Points: Chassis grease fittings and wheel bearings
Grease Type: Lithium complex NLGI No. 2
Recommended Engine Oil: API CF or higher diesel engine oil
Recommended Transmission Fluid: Caterpillar TO-4 or equivalent
Recommended Hydraulic Fluid: ISO VG 46 anti-wear hydraulic oil
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