Cat DP150NM Specifications
The Caterpillar DP150NM is a 15-ton class diesel
pneumatic-tire forklift engineered for severe industrial applications requiring
continuous heavy lifting, high structural durability, and dependable long-shift
productivity. It is commonly deployed in steel fabrication plants, port
terminals, mining operations, precast concrete production facilities,
manufacturing yards, industrial distribution centers, and oversized-load
handling environments. The DP150NM is designed to maintain high residual lifting
capacity at elevated heights while delivering predictable load behavior and
minimal chassis flex under extreme stress.
Equipped with the Perkins 1204E industrial diesel engine, the machine delivers
strong torque at low RPM, excellent fuel efficiency, and stable thermal
performance suitable for continuous full-load operation. Its reinforced chassis
frame, planetary drive axle, large-capacity powershift transmission, and
high-flow hydraulic system allow smooth, confident, and repeatable operation
even in harsh duty cycles.
Operators benefit from an ergonomic cabin with
reduced vibration, intuitive hydraulic controls, enhanced forward
visibility, and hydrostatic steering with low effort. Service
technicians appreciate wide-opening service doors, modular drivetrain
placement, simplified diagnostic access, and long-interval maintenance
systems. The DP150NM is designed as a long-life industrial workhorse
engineered for maximum uptime, low operating cost, and rugged
performance in challenging environments.
The Caterpillar DP150NM is powered by the Perkins
1204E, a high-output electronic common-rail diesel engine engineered for
demanding heavy-equipment applications.
Basic Engine Specifications - Perkins 1204E:
- Type: 4-cylinder, 4-stroke, turbocharged and aftercooled diesel
- Displacement: 4.4 liters (268 cubic inches)
- Rated power: approx. 110-129 kW (148-173 hp) @ 2,200 rpm
- Peak torque: approx. 560-700 Nm (413-516 lb-ft) @ 1,400-1,600 rpm
- Fuel system: high-pressure common-rail electronic injection
- Idle speed: approx. 750 ± 50 rpm
- Governed speed: approx. 2,300-2,400 rpm
- Emissions: Tier 4 Interim or Tier 4 Final
- Induction: turbocharged with charge-air cooling
The engine is designed for sustained low-speed torque, refined combustion
efficiency, and strong power delivery under continuous heavy lifting demands.
Lubrication System:
- Type: full-pressure wet-sump lubrication
- Pump: high-volume gear-driven oil pump
- Oil pressure: approx. 350-450 kPa (50-65 psi)
- Oil capacity: approx. 10-12 L (10.5-12.7 qt)
- Oil filter: spin-on full-flow
- Recommended oil: SAE 15W-40, API CJ-4/CK-4
- Crankcase ventilation: closed breather system
Cooling System:
- Cooling method: liquid-cooled forced-circulation
- Coolant capacity: approx. 18-20 L (19-21 qt)
- Thermostat opening: approx. 82°C (180°F)
- Full open: approx. 95°C (203°F)
- Fan: mechanical or viscous-drive fan
- Radiator: heavy-duty multi-row industrial core
- Coolant mixture: 50/50 ethylene glycol and demineralized water
The cooling system is engineered for extreme ambient temperatures, dusty
environments, and long-duration full-load operation.
The DP150NM uses a heavy-duty industrial powershift
transmission engineered for high torque, smooth direction changes, and long
service life.
Transmission:
- Type: 3-speed forward, 3-speed reverse powershift
- Forward travel speed (unladen): approx. 23-27 km/h (14-17 mph)
- Reverse travel speed (unladen): approx. 22-26 km/h (13-16 mph)
- Fluid capacity: approx. 20-25 L (21-26 qt)
- Recommended fluid: CAT TDTO SAE 10W
- Cooling: oil-to-air or oil-to-water cooler
- Control: electronic clutch modulation for smooth shifts
Drive Axle:
- Type: heavy-duty planetary drive axle
- Differential: bevel-gear differential with reinforced carrier
- Planetary hubs: large reduction ratio for increased torque
- Axle oil capacity: approx. 16-20 L (17-21 qt)
- Lubricant: SAE 80W-90 or 85W-140 gear oil
- Axle design: engineered for shock loads, uneven terrain, and large load-center
lifting
Braking System:
- Service brakes: hydraulic wet-disc brakes
- Parking brake: spring-applied, hydraulic-release
- Characteristics: fade-resistant, low-maintenance, long-life brake packs
- System voltage: 24 V
- Alternator output: approx. 80-120 A
- Batteries: dual industrial batteries, approx. 120-180 Ah combined
- Starter motor: 5-7 kW, heavy-duty
- Engine ECU: manages injection timing, turbo pressure, fuel quantity, emissions
systems
- Safety electronics: neutral-start interlock, operator-presence detection,
travel-inhibit logic
The 24-V system supports reliable cold-weather starts, stable electrical load
for hydraulic solenoids, and robust power delivery to safety and control
systems.
Drive
Configuration:
- Drive wheels: front
- Steer wheels: rear
- Drive system: 2-wheel drive
Tires:
- Front tires: typically 10.00x20 pneumatic or solid pneumatic
- Rear tires: typically 10.00x20 matching spec
- Optional: foam-filled or non-marking tire variants
Chassis Construction:
- Reinforced welded-steel frame
- Oversized counterweight for stability
- Protected hydraulic and electrical routing
- Anti-slip steps and handrails
- Reinforced overhead guard compliant with international safety requirements
The chassis is engineered for high torsional rigidity under heavy loads and
continuous multi-shift operation.
Steering:
- Steering type: fully hydrostatic power steering
- Pump flow: approx. 12-20 L/min (3-5.3 gpm)
- Steering cylinder: double-acting, high-load cylinder
- Steering axle: oscillating rear axle with center pivot
- Turning radius: approx. 4.0-4.5 m (157-177 in)
Hydrostatic steering ensures precise control, low effort, and stable maneuvering
even with heavy loads at elevated heights.
- Pump type: heavy-capacity gear pump or load-sensing
pump
- Pump flow: approx. 110-150 L/min (29-40 gpm)
- Maximum system pressure: approx. 18-20 MPa (2,600-2,900 psi)
- Hydraulic tank capacity: approx. 90-120 L (95-127 qt)
- Recommended fluid: ISO VG 46 or CAT HYDO Advanced
- Lift cylinders: dual heavy-bore double-acting cylinders
- Tilt cylinders: dual cushioning tilt cylinders
Optional hydraulic attachments:
- Side-shift
- Fork-positioner
- Coil clamps
- Paper-roll clamps
- Rotators
The hydraulic system is designed for smooth, predictable lifting with
fine-control at high capacities.
| Service Refill Capacities |
- Engine oil: 10-12 L (10.5-12.7 qt)
- Cooling system: 18-20 L (19-21 qt)
- Transmission: 20-25 L (21-26 qt)
- Drive axle: 16-20 L (17-21 qt)
- Hydraulic tank: 90-120 L (95-127 qt).
Mast Types:
- Duplex (2-stage)
- Triplex (3-stage full free lift)
- Quad mast (optional)
Lift Heights:
- Duplex: approx. 3.0-4.5 m (118-177 in)
- Triplex: approx. 4.5-7.0 m (177-276 in)
- Quad: approx. 7.0-10.0 m (276-394 in)
Free Lift: 1.0-1.3 m (39-51 in)
Carriage Width: 1.9-2.2 m (75-87 in)
Fork Specifications:
- Standard length: 1,524 mm (60 in)
- Optional lengths: 1,829-2,438 mm (72-96 in)
- Width: 150-200 mm (6-8 in)
- Thickness: 60-80 mm (2.4-3.1 in)
- Fork class: ITA Class V.
Rated capacity: 15,000 kg (33,000 lb) @ 600 mm (24 in)
load center
De-rating conditions:
- Increased load center distances
- High lift heights
- Attachment usage
- Off-center loads
Residual capacity remains high due to the long wheelbase, mass of the
counterweight, and strong mast design.
- Lift speed (unladen): approx. 0.40-0.55 m/s (79-110
ft/min)
- Lift speed (laden): approx. 0.25-0.40 m/s (50-79 ft/min)
- Lowering speed: load-controlled
- Drawbar pull: approx. 45,000-60,000 N (10,000-13,500 lbf)
- Gradeability (unladen): approx. 25-30%
- Gradeability (laden): approx. 15-20%.
- Overall length to fork face: approx. 5.2-5.6 m
(205-220 in)
- Overall width: approx. 2.2-2.4 m (87-95 in)
- Overhead guard height: approx. 2.7-2.9 m (106-114 in)
- Wheelbase: approx. 3.0-3.2 m (118-126 in)
- Ground clearance: 180-240 mm (7.1-9.4 in)
- Turning radius: approx. 4.0-4.5 m (157-177 in)
- Aisle width (1000x1200 pallet): approx. 7.0-8.0 m (276-315 in)
- Maximum fork height: 3.0-10.0 m
- Free lift: 1.0-1.3 m
- Fork lengths: 60-96 in typical
- Operating weight: approx. 18,000-21,000 kg (39,700-46,300 lb)
- Counterweight mass: approx. 6,000-8,000 kg (13,200-17,600 lb).
250-Hour:
- Change engine oil and filter
- Lubricate mast components
- Clean radiator and cooler cores
- Inspect air filter
500-Hour:
- Replace transmission filter
- Inspect axle seals and planetary lubrication
- Check hydraulic suction strainer
1,000-Hour:
- Replace transmission oil
- Replace axle oil
- Inspect hydraulic hoses and cylinder seals
2,000-Hour:
- Replace hydraulic oil and filters
- Replace coolant
- Full mast structural inspection
- Check engine mounts and driveline couplings
Long-Term:
- Valve lash every 2,000-3,000 hrs
- Injector servicing every 3,000-4,000 hrs
- Brake pack inspection every 1,500-2,000 hrs
- Cooling system descaling as needed.
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