Komatsu DX50 Series IC Pneumatic

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Komatsu DX50 Series IC Pneumatic Forklifts are designed and manufactured with a diesel engine, drive-train, and wet disc brake system that all provide rugged and dependable life cycle cost benefits. A full suspension seat and dual-floating structure provide operator comforts that improve efficiencies and productivity. A unique Open-center Load Moderating Hydraulic System (OLMS) contributes to lower fuel consumption and lower total operating costs.


Durable Wet Disc Brakes

The wet disc brake system is sealed with oil to block dust penetration, providing durable, water resistant and fade resistant characteristics. Smooth, stable braking provides productivity and reliability in demanding operations.

The oil in a wet disc brake system is circulated through the brake oil cooler. This mechanism ensures stable braking under a heavy work load and prevents deterioration of the braking force that could be caused by raised oil temperatures. Komatsu’s unique cushioning valve enables controlled braking force that precisely reflects the pressure on the brake pedal.

Greatly Reduced Total Operating Costs

The standard sealed wet disc brake system is designed to withstand 10,000 hours of operation without maintenance, thereby eliminating downtime and the added maintenance costs of frequent brake shoe replacement. The engine oil replacement interval has been extended to 500 hours reducing oil costs. The reduced maintenance costs and significant fuel savings provide a total operation cost of about 14% over eight years of usage.

Reliable Hydraulic and Electrical Systems

The main hydraulic pipe connectors are face-sealed using O-rings. Waterproof connectors are provided to the main harnesses and the system controller in order to provide higher resistance to water and dust. Hydraulic and electrical piping systems are in separate configurations to improve the reliability and servicing.

First Class Cycle Time

The DX50 series utilizes a technologically advanced, compact 3.3-liter engine in conjunction with Komatsu’s advanced OLMS hydraulic system. This advanced design achieves high productivity and first class cycle times.

Komatus Unique OLMS Hydraulic System

The OLMS Hydraulic System contributes to lower fuel consumption. As engine speeds change, the engine RPM sensing control pump detects engine revs and then controls the oil feed to reduce the load on the engine. This unique hydraulic system offers optimized balance of traveling and loading work while delivering increased hydraulic efficiencies in the most demanding applications.

Fully Hydrostatic Power Steering

The Fully Hydrostatic Power Steering (FHPS) system facilitates fully stationary steering as well as switchback operations using the small diameter steering wheel. The system has a superior response capability so that the operator can maneuver easily with a load even in a tight area

KOPS Plus Komatsu Operator Presence System

KOPS Plus – standard on the CX50 – locks out lift, lower, tilt and traveling functions when the operator leaves the seat for more than three seconds. They do not resume until the operator returns to the seat and resets the controls. A flashing yellow warning light alerts the operator when the KOPS lock is activated. In addition, the forks cannot be lowered while the key is in the off position. 


Power Type Diesel Diesel 
Operation Type Sit-Down Sit-Down
Capacity @ 24 in. (600mm) Load Center 15,400 lbs 18,000 lbs
Load Distance  From Center Axle (2 Stage) 23 in 25 in
Wheelbase 90.6 in 90.6 in
WEIGHT FD70T-10 FD80T-10
Service Weight 20,380 lbs 24,050 lbs
Loaded Front 31, 590 lbs 36,520 lbs
Loaded Rear 4,220 lbs 5,170 lbs
Unloaded Front 8,210 lbs 9,410 lbs
Unloaded Rear 12,170 lbs 14,640 lbs
TIRES FD70T-10 FD80T-10
Tire Type Pneumatic Pneumatic
Front 8.25 - 15 - 14PR (I) 8.25 - 15 - 18PR (I)
Rear 8.25 - 15 - 14PR (I) 8.25 - 15 - 18PR (I)
Number of Wheels, Front/Rear 4X / 2 4x / 2
Front 57.9 in 60.6 in
Rear 64.6 in 64.6 in
Tilting Angle, Forward/Backward 6 / 12 deg 6 / 12 deg
Lowered 101.8 in 106.7 in
Extended 171.3 in 171.3 in
Free Lift Height 8.7 in 8.7 in
Maximum Fork Height 118 in 118 in
Height Overhead Guard 96.1 in 96.1 in
Length, with Standard Forks 188.4 in 192.5 in
Length to Fork Face 140.4 in 144.5 in
Overall Width at Drive Tires 78 in 80.7 in
Forks, Thickness x Width x Length 2.6 x 5.9 x 48 in 2.6 x 6.7 x 48 in
Carriage Width/ITA Class 66.5 in / IV 70.9 in / IV
Ground Clearance, Under Mast 8.7 in 9.3 in
Ground Clearance, Center of Wheelbase 11.6 in 11.6 in
Right Angle Stacking Aisle 154.9 in 160.8 in
Turning Radius, Outside 131.9 in 135.8 in
Travel Speed, Loaded - 1st/2nd 6.8 / 18 mph 6.8 / 16.2 mph
Travel Speed, Unloaded - 1st/2nd 7.5 / 19.3 mph 7.5 / 19.3 mph
Lifting Speed, Loaded/Unloaded 89 / 98 fpm 79 / 89 fpm
Lowering Speed, Loaded/Unloaded 94 / 98 fpm 91 / 98 fpm
Maximum Drawbar Pull, Loaded 9,890 lbs 9,890 lbs
Maximum Gradeability 29% 24%
Service Brake, Operation/Control Foot / Hydraulic Foot / Hydraulic
Parking Brake, Operation/Control Hand / Mechanical Hand / Mechanical
Steering Type FHPS FHPS
DRIVE FD70T-10 FD80T-10
Engine Manufacturer / Engine Model Komatsu SAA4D95LE-5-A Komatsu SAA4D95LE-5-A
Rated Output (SAE Net) 93 HP @ 2,250 rpm 93 HP @ 2,250 rpm
Maximum Torque (SAE Net) 253 lb-ft @ 1,600 rpm 253 lb-ft @ 1,600 rpm
# of Cylinders / Displacement 4 / 199 cu in 4 / 199 cu in
Fuel Tank Capacity 37 US Gallons 37 US Gallons
OTHER FD70T-10 FD80T-10
Relief Pressure, Maximum 2,600 psi 2,600 psi


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