Komatsu FD20T-11 Specifications
The Komatsu FD20T-11 is a 2.0-ton (2,000 kg / 4,400 lb)
diesel-powered pneumatic-tire forklift designed for light-to-medium industrial
material handling. As part of Komatsu’s 11 Series - one of the most widely used
forklift generations globally - the FD20T-11 is valued for its rugged steel
construction, simple mechanical systems, excellent reliability, and ease of
maintenance.
The forklift is powered by the Komatsu 4D95S
engine, a 3.26-liter naturally aspirated diesel powerplant derived from
the 4D95 family. This engine is renowned for strong low-end torque, fuel
efficiency, durability, and long overhaul intervals.
The FD20T-11 is frequently used in
construction-material yards, manufacturing plants, logistics terminals,
agricultural processing sites, and general industrial warehouses
requiring dependable lifting in outdoor or semi-outdoor environments.
Technical Data
Model: Komatsu 4D95S
Type: inline 4-cylinder, 4-stroke diesel
Displacement: 3.26 L (3,260 cc)
Bore/stroke: 95x115 mm (3.74x4.53 in)
Rated output: 33-40 kW (44-54 hp) @ 2,300-2,600 rpm
Peak torque: 160-185 Nm (118-136 lb-ft) @ 1,600-1,800 rpm
Fuel system: mechanical in-line injection pump
Aspiration: naturally aspirated
Compression ratio: approx. 21:1
Idle speed: 750 ± 50 rpm
Engine characteristics: robust low-RPM torque, long service life, easy to
service.
Lubrication System
Type: wet-sump, full-pressure
Oil capacity: 6.5-7.5 L (6.9-7.9 qt)
Oil pressure: 250-450 kPa (36-65 psi)
Oil type: SAE 15W-40 diesel (API CF/CG/CH)
Pump: internal gear type
Filter: spin-on full-flow
Cooling System
Cooling method: liquid-cooled
Coolant capacity: 8-10 L (8.4-10.5 qt)
Thermostat: opens at 82°C (180°F)
Fully open: 95°C (203°F)
Fan: mechanical
Pump: centrifugal belt-driven
Radiator: fin-tube industrial
System pressure: 88-108 kPa (13-16 psi)
Transmission
Type: torque-converter powershift
Speeds: 1-2 forward / 1-2 reverse
Control: mechanical shuttle lever
Travel speed (unladen): 17-19 km/h (10.5-11.8 mph)
Travel speed (laden): 14-16 km/h (8.7-10 mph)
Transmission oil capacity: 6-8 L (6.3-8.4 qt)
Oil type: Dexron II/III ATF
Cooling: integrated oil-cooler
Front Drive Axle
Type: rigid cast-steel
Differential: bevel-gear
Oil capacity: 4.0-5.0 L (4.2-5.3 qt)
Oil type: SAE 80W-90
Rear Steer Axle
Type: oscillating center-pivot
Oscillation: ±10 degrees
Lubrication: 0.7-1.0 L
Brake System
Service brakes: hydraulic drum
Parking brake: mechanical lever
Notes: durable, simple and reliable for industrial operation.
System voltage: 12 V
Battery capacity: 75-90 Ah
Alternator output: 30-50 A
Starter motor: 2.0-2.5 kW
Indicators: oil pressure, coolant temp, charge lamp, glow plug, hour meter,
parking brake
Harness: industrial-grade sealed wiring
Drive type: 2WD (front drive)
Steering: rear-wheel steering
Frame: welded steel industrial frame
Counterweight: integrated
Tire Sizes
Front: 6.50-10
Rear: 5.00-8
Optional: solid pneumatic, non-marking, outdoor traction tread
Chassis features:
- reinforced overhead guard
- anti-slip steps
- rubber engine mounts
- protected hydraulic and electrical routing
Steering
Steering type: hydrostatic
Pump flow: 5-8 L/min (1.3-2.1 gpm)
Steer cylinder: double-acting
Turning radius: 2.0-2.2 m (79-87 in)
Rear axle: oscillating for uneven ground
Pump type: external gear
Flow rate: 35-50 L/min (9-13 gpm)
System pressure: 16-18 MPa (2,320-2,610 psi)
Hydraulic reservoir: 22-28 L (23-30 qt)
Oil type: ISO VG 32 or VG 46
Cylinders: dual lift, dual tilt
Controls: mechanical spool valves
Supported attachments:
- side-shift
- fork-positioner
- rotator
- drum clamp
- bale clamp
| Service Refill Capacities |
Engine oil: 6.5-7.5 L
Coolant: 8-10 L
Transmission: 6-8 L
Drive axle: 4-5 L
Steer axle: 0.7-1.0 L
Hydraulics: 22-28 L
Mast types:
- simplex (1-stage)
- duplex (2-stage)
- triplex (3-stage full free-lift)
Lift heights:
Simplex: 2.5-3.0 m (98-118 in)
Duplex: 3.0-4.0 m (118-157 in)
Triplex: 4.0-5.0 m (157-197 in)
Fork specifications:
Standard forks: 920 mm (36 in), 1,070 mm (42 in)
Optional forks: 1,220-1,829 mm (48-72 in)
Fork width: 100-125 mm
Thickness: 35-40 mm
Fork class: ITA Class II
Rated capacity: 2,000 kg (4,400 lb)
Load center: 500 mm (20 in)
Derates occur from:
- high masts
- long forks
- heavy attachments
- offset loads
- uneven ground
Lift speed (unladen): 0.45-0.55 m/s
Lift speed (laden): 0.25-0.38 m/s
Lowering speed: 100-150 ft/min
Drawbar pull: 8,000-10,000 N (1,800-2,250 lbf)
Gradeability (unladen): 18-24%
Gradeability (laden): 10-16%
Overall length to fork face: 2.35-2.45 m (93-96 in)
Overall width: 1.10-1.15 m (43-45 in)
Overhead guard height: 2.05-2.15 m (81-85 in)
Wheelbase: 1.40-1.50 m (55-59 in)
Ground clearance: 110-130 mm (4.3-5.1 in)
Turning radius: 2.0-2.2 m
Carriage width: 900-1,000 mm (35-39 in)
Aisle width (1000x1200 pallet): 3.15-3.45 m
Max fork height: 2.5-5.0 m
Free lift: 70-550 mm
Supported fork sizes: 36-72 in
Operating weight: 3,150-3,650 kg (6,945-8,050 lb)
Counterweight: 1,350-1,650 kg (2,975-3,640 lb)
250-hour service:
- change engine oil and filter
- clean radiator
- lube mast and steer axle
- inspect air filter
500-hour service:
- change Transmission oil
- inspect axle seals
- clean suction screen
1,000-hour service:
- change hydraulic oil and filters
- replace coolant
- inspect wiring, cylinders, hoses
2,000-hour service:
- full driveline inspection
- steering alignment
- mast structural check
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