2025 Komatsu AX50 Series FG18HTU-20
- Year 2025
- Make Komatsu
- Model AX50 Series
- Engine Model: GK21
2025 Komatsu AX50 Series FG18HTU-20
Big power and performance in a small packageThe AX50 is designed to move high volumes and big loads reliably. Integrating Komatsu’s 100-year history of rigorous engineering in mining and construction, it’s built for efficiency and productivity with operator comfort in mind.
Features may include:
Enhanced safety for employees and goods- The Komatsu Operator Presence System (KOPS) Plus, standard with AX50 series, locks out lift, lower, tilt and travel functions when the operator leaves the seat for more than three seconds. The forks cannot lower while the key is in the off position.
- Our expertise in construction is behind the AX50’s full floating drivetrain. High torque delivered by a powerful engine is channeled through a heat dissipating aluminum transmission case and a rugged dust- and leak-resistant, double-seal U-joint design.
- Designed to improve operator comfort and reduce fatigue, the Komatsu Komfort Zone is a dual floating structure: dampening mounts protect the frame from engine vibration; additional mounts isolate your operators from the frame. Sealed floorboard reduces engine noise and heat.
- Hot engine air, dust and exhaust can affect operators over time. The AX50 series’ angled exhaust ports in the counterweight aim exhaust away while traveling in reverse. Exhaust vents low on the counterweight point away from the ground and don’t stir up dust.
- An unrestricted view of the fork tips and surroundings. The thoughtfully designed mast, console and low-profile dash provide you outstanding forward visibility. Upper corners of the counterweight are angled for clear sightlines in reverse.
Engine
							Engine Manufacturer
							GCT 
						
						
							Engine
							Model: GK21
						
						
							Engine Power
							Rated Output (SAE Net): 54 HP @ 2,700 rpm	
						
						
							Engine Torque, Maximum
							(SAE Net): 117 lbs.-ft. @ 1,600 rpm	
						
						
							Cylinder Liners
							4
						
						
							Displacement
							126 in3
						
						Fuel System
							Fuel System
							Power Type: LPG / Dual Fuel 
						
						Drivetrain
							Steering
							FHPS
						
						
							Transmission
							Powershift
						
						Brakes
							Brake System Type
							Operation/Control: Foot / Hydraulic
						
						
							Parking Brake
							Operation/Control: Hand / Mechanic
						
						Wheels & Tires
							Tires, Front Specification
							Type: Pneumatic | 6.5 - 10 - 10PR (I)	
						
						
							Tires, Rear Specification
							Type: Pneumatic | 5 - 8 - 8PR (I)	
						
						
							Wheels
							Number of Wheels, Front/Rear: 2x / 2
						
						
							Tire Tread Thickness, Front
							35 in 
						
						
							Tire Tread Thickness, Rear
							35.2 in 
						
						Operational
							Operating Conditions
							Operation Type: Sit-Down  | Max. gradeability: 35%
						
						
							Operating Speed
							Travel Speed, Forward, Loaded/Unloaded: 11.5 / 11.8 mph | Lifting Speed, Loaded/Unloaded (2-stage mast): 116 / 126 fpm | Lowering Speed, Loaded/Unloaded (2-stage mast): 98.4 / 108.3 fpm
						
						Hydraulics
							Relief Valve Setting
							Relief Pressure, Maximum: 2,650 psi
						
						Dimensions
							Wheelbase
							55.1 in 
						
						
							Dimensions
							Load Distance From Center Axle (2 Stage): 15.4 in | Tilting Angle, 2-Stage (FV) Masts, Forward/Backward: 6 / 8 deg | Tilting Angle, 3-Stage (TFV) Masts, Forward/Backward: 6 / 5 deg | Forks, Thickness: 1.6 in | Right Angle Stacking Aisle: 93.7 in
						
						
							Height
							Mast Height - Lowered: 85.5 in | Mast Height - Extended: 176 in | Maximum Fork: 128 in | overhead guard: 81.5 in 
						
						
							Lift Height
							Free Lift Height (2-stage std. mast): 5.5 in
						
						
							Length
							with Standard Forks: 131.3 in | to Fork Face: 89.2 in | Forks: 42.1 in 
						
						
							Overall Width
							at Drive Tires: 42.1 in
						
						
							Width
							Forks: 4 in | Carriage: 41 in 
						
						
							Ground Clearance
							Under Mast: 5.5 in | Center of Wheelbase: 5.1 in
						
						
							Outside Turning Radius
							78.3 in
						
						Capacities
							Cargo Capacity
							@ 24 in (600 mm) Load Center: 3,500 lbs. 
						
						
							Axle Capacity, Front
							Axle Loading, Loaded Front: 8,470 lbs | Axle Loading - Unloaded Front: 2,510 lbs.
						
						
							Axle Capacity, Rear
							Axle Loading, Loaded Rear: 1,355 lbs | Axle Loading - Unloaded Rear: 3,820 lbs.
						
						
							Drawbar Capacity
							Maximum Drawbar Pull, Loaded: 3,700 lbs.
						
						
							Fuel Capacity
							10.6 US gal
						
						Weights
							Weight
							Service: 6,340 lbs.
						
						Features
							Features
							Carriage ITA Class: II
						
					