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Clark C18L Specifications

Basic Information

The Clark C18L is a versatile, rider-seated forklift built to handle loads up to 1800 kg (4000 lb) with a 500 mm (24 in) load centre. The truck is recognised for its sturdy construction, reliable Clark TA12 single speed powershift transaxle, and maneuverability in applications such as warehousing, logistics, and distribution centres. Fitted with pneumatic tyres, it is well-suited for both improved indoor surfaces and outdoor applications.

With a laden travel speed of 17.9 km/h (11.1 mph) and a right-angle stacking aisle width of 3713 mm (146.2 in), it offers efficient performance in warehouse operations and material handling applications. The Clark C18L incorporates advanced features including a full-flow reverse hydraulic filter system, high-capacity hydraulic pump with priority steering distributor, load-sensitive control valve, clear-view uprights with sealed canted rollers, force-cooled wet disc brakes, fully welded heavy gauge frame, nested I-beam upright construction, 6-roller carriage with external side-thrust rollers, proven steer axles, and efficient cooling systems.

Manufacturer: CLARK
Model: C18L
Power Source: LPG (Liquefied Petroleum Gas)
Operator Type: Rider seated
Load Capacity / Rated Load: 1800 kg (4000 lb)
Load Centre: 500 mm (24 in)
Load Distance, Centre of Drive Axle to Fork: 392 mm (15.4 in)
Wheelbase: 1400 mm (55.1 in)
Service Weight: 3021 kg (6660 lb)
Axle Loadings, Laden Front/Rear: 4176 kg (9206 lb) / 645 kg (1422 lb)
Axle Loadings, Unladen Front/Rear: 1224 kg (2698 lb) / 1797 kg (3962 lb)
Tyres: Pneumatic

Engine Specs

Engine Manufacturer/Type: HMC Theta 2.4 L, 4-cylinder LPG engine
Engine Power: 38 kW (51 hp) at 2600 rpm
Rated Speed: 2600 rpm
Engine Torque: 45.8 kg (101 lb-ft) at 1800 rpm
Number of Cylinders: 4
Displacement: 2359 cc (144 cu.in)
Engine Lubrication: Wet sump
Engine Cooling: Liquid-cooled with efficient cooling systems
Fuel Tank: LPG, 45 L (11.9 US gal)

Drive Train

Transmission Type: Clark TA12 single speed, full reversing, powershift transaxle with high stall ratio industrial torque converter
Transmission Speed Forward / Reverse: 1 / 1
Drive Axle: Full-floating drive axles
Travel Speed, Laden/Unladen: 17.9 km/h (11.1 mph) / 18.4 km/h (11.4 mph)
Reverse Speed, Laden/Unladen: 17.9 km/h (11.1 mph) / 18.4 km/h (11.4 mph)
Drive Axle: Front (2 driven wheels)
Steer Axle: Rear with proven steer axle design
Service Brake: Drum and shoe type
Parking Brake: Mechanical, hand-operated

Electrical System

Voltage: 12 V
Battery: Lead-acid
Starting System: Electric starter
Alternator: Standard equipment

Wheels and Tires

Body/Frame Construction: Fully welded heavy gauge frame
Wheel Drive (WD): 2-wheel drive (front)
Wheels, Number Front/Rear: 2x / 2 (total 4)
Tyre Size - Front: 6.50 x 10 - 12PR (pneumatic)
Tyre Size - Rear: 5.00 x 8 - 10PR (pneumatic)
Tread - Front: 890 mm (35.0 in)
Tread - Rear: 890 mm (35.0 in)
Steering Type: Full hydraulic power steering with hydrostatic system
Steering Control: Hydraulic with priority distributor ensuring steering priority in all conditions

Hydraulic System

Operating Pressure for Attachments: 140 bar max (2030 psi)
Rated Flow for Attachments: 35 L/min max (9.2 gal/min)
Hydraulic System Function: Controls mast tilt, lift, lowering, and attachments
Hydraulic Controls: Ergonomic controls for precise operation

Hydraulic System Features: Full-flow reverse filter filters oil to tank at each reverse flow; suction filter removes rough particles before entering oil circuit; high-capacity pump provides adequate oil supply for upright and hydrostatic steering; priority distributor ensures steering priority; load-sensitive response and precise control valve; safety valve prevents uncontrolled lowering of load.

Mast Data

Mast Type: Clear-view uprights available in Standard, Hilo, and Triplex versions with heavy duty interlocked narrow profiles
Upright Construction: Nested I-beam upright construction
Tilt of Mast/Carriage Forward/Backward: 8 degrees / 8 degrees
Height, Mast Lowered: 2240 mm (88.2 in)
Free Lift: 110 mm (4.3 in)
Lift Height: 3285 mm (129.3 in)
Height, Mast Extended: 4502 mm (177.2 in)
Fork (thickness/width/length): 40 mm (1.57 in) / 100 mm (3.94 in) / 1070 mm (42.1 in)
Fork Carriage DIN 15 173, Class/Type A,B: Class IIA
Fork Carriage Width: 940 mm (37.0 in)
Carriage Construction: 6-roller carriage with external side-thrust rollers
Roller Design: Adjustable sealed canted (angled) rollers minimize deflection with off-set loads
Tilt Cylinder Mounting: Spherical bearings

Load Capacity

Load Capacity / Rated Load: 1800 kg (4000 lb)
Load Centre: 500 mm (24 in)

Performance Data

Lift Speed, Laden/Unladen: 0.66 m/s (130 ft/min) / 0.68 m/s (134 ft/min)
Lowering Speed, Laden/Unladen: 0.45 m/s (88 ft/min) / 0.43 m/s (84 ft/min)
Max. Drawbar Pull, Laden/Unladen: 14774 N (3321 lb) / 7171 N (1612 lb)
Gradeability: 28% at full load
Max. Gradeability: 36.9%

Dimensions and Weight

Wheelbase: 1400 mm (55.1 in)
Height of Overhead Guard: 2120 mm (83.5 in)
Height of Overhead Guard with Cabin: 2135 mm (84.1 in)
Seat Height (Operator): 1100 mm (43.3 in)
Coupling Height: 310 mm (12.2 in)
Overall Length: 3311 mm (130.4 in)
Length to Face of Forks: 2241 mm (88.2 in)
Overall Width: 1070 mm (42.1 in)
Ground Clearance, Minimum: 120 mm (4.7 in)
Ground Clearance, Centre of Wheelbase: 124 mm (4.9 in)
Aisle Width for Pallets 1000x1200 Wide: 3713 mm (146.2 in)
Aisle Width for Pallets 800x1200 Long: 3913 mm (154.1 in)
Right Angle Stack: 2510 mm (98.8 in)
Turning Radius (Outside): 2121 mm (83.5 in)
Internal Turning Radius: 571 mm (22.5 in)
Service Weight: 3021 kg (6660 lb)
Axle Loadings, Laden Front/Rear: 4176 kg (9206 lb) / 645 kg (1422 lb)
Axle Loadings, Unladen Front/Rear: 1224 kg (2698 lb) / 1797 kg (3962 lb)

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