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Cat TH406C Specifications
| Basic Information |
The Caterpillar TH406C telehandler is a mid-capacity, all-terrain telescopic handler engineered for agricultural, construction, industrial, and materials-handling operations requiring reliable lifting capability, durable structural design, and excellent maneuverability.
As a member of Caterpillar’s C-Series range, the TH406C incorporates improved hydraulic performance, refined operator controls, stronger boom assemblies, and cleaner, more fuel-efficient engines that meet Stage IIIB emission standards.
The machine’s structural stability, reinforced chassis, Z-bar linkage, efficient load-sensing hydraulics, and versatile attachment interface make it a durable multipurpose solution for pallet handling, bulk material loading, bale lifting, and equipment relocation in work environments demanding continuous duty performance.
The TH406C provides a balanced combination of lift height, reach, breakout force, and operator comfort, ensuring reliable productivity with low operating cost.
| Engine Specs |
Caterpillar engine
options:
Engine Option 1 - Cat C4.4 ACERT Stage IIIB
Gross Power: 92.6 kW (124 hp)
Maximum Torque: 530 Nm at 1400 rpm
Engine Option 2 - Cat C4.4 ACERT Stage IIIB (High Output)
Gross Power: 106 kW (142 hp)
Maximum Torque: 560 Nm at 1400 rpm
Shared engine specifications:
- Engine type: 4-cylinder, 4-stroke, turbocharged diesel
- Displacement: 4.4 L (268 cu.in)
- Bore: 105 mm (4.13 in)
- Stroke: 127 mm (5.0 in)
- Injection system: high-pressure, electronically controlled ACERT
- Emissions rating: Stage IIIB compliant
- Cooling: liquid-cooled, belt-driven water pump
- Air cleaning: dual-element radial-seal air cleaner
These engine configurations provide strong torque characteristics at low engine
speed, essential for heavy lifting, hydraulic load-management, and smooth travel
in rough-terrain environments. The ACERT technology ensures optimized fuel
delivery, clean combustion, lower particulate emissions, and high reliability
during extended operation.
The lubrication system is designed for high
reliability under continuous load, ensuring full oil circulation even
during angled operation or off-road conditions. The cooling system
provides stable temperature regulation for heavy-duty engine operation.
Lubrication System
- Type: wet-sump, full-pressure
- Oil pump: gear-type pump
- Oil capacity: approx. 10-12 liters (10.5-12.7 qt)
- Filtration: full-flow spin-on oil filter
- Recommended oil: SAE 15W-40 diesel engine oil
- Typical service interval: 500 hours
Cooling System
- Type: liquid-cooled
- Coolant capacity: approx. 14-17 liters (15-18 qt)
- Thermostat opening: approx. 82°C (180°F)
- Fan: engine-driven mechanical fan
- Radiator: industrial multi-row core for dust resistance
| Drive Train |
Transmission type: 4-speed powershift mechanical
gearbox. The powershift transmission uses hydraulically actuated clutch packs
for smooth shifting and fast directional changes during repeated loading cycles.
The axle configuration is built to handle continuous load cycles, rough terrain,
and full-capacity lifting without compromising stability or traction. Wet-disc
brakes provide extremely long life and minimal fade under continuous braking,
even in dirty environments.
Forward travel speeds (approximate):
1st - 6 km/h (4 mph)
2nd - 12 km/h (7.5 mph)
3rd - 20 km/h (12 mph)
4th - 32 km/h (20 mph)
Reverse travel speeds:
1st - 6 km/h (4 mph)
2nd - 12 km/h (7.5 mph)
3rd - 20 km/h (12 mph)
Axles
Front axle: heavy-duty planetary reduction hubs with optional limited-slip
differential
Rear axle: oscillating planetary axle for improved contact on uneven terrain
Drive type: full-time mechanical 4x4
Brakes
Service brakes: enclosed, oil-immersed wet-disc brakes
Parking brake: mechanically applied, hydraulic-release disc brake
| Electrical System |
The electrical system is designed for reliability under
vibration and dusty working conditions.
- Voltage: 12 V
- Alternator output: approx. 90-120 A
- Battery capacity: 750-1000 CCA
- Standard features: reverse alarm, sealed connectors, fuse panel, operator
alert indicators
Operator display includes indicators for:
- engine oil pressure
- coolant temperature
- fuel level
- machine hours
- hydraulic system warnings
- transmission temperature
- electrical charge
| Wheels and Tires |
Drive configuration: full-time mechanical 4WD
Chassis construction: rigid welded steel frame with reinforced boom pivot mounts
Ground clearance: approx. 430-500 mm (17-20 in)
Standard tires: 15.5/80-24 (16-ply industrial)
Optional tires:
- 400/80 R24
- 460/70 R24
- 500/70 R24
- solid industrial telehandler tires
The chassis incorporates integrated lift points, protective underbody steel, and
a counterweight designed for machine stability when lifting at height or maximum
reach.
Steering type: hydrostatic
Turning radius over tires: approx. 3.8-4.0 m (12.5-13.1 ft)
Turning radius over forks: approx. 4.5 m (14.7 ft)
Steering modes:
- two-wheel steer
- crab steer
- circle steer
The steering system allows tight-area maneuvering in warehouses, barns, and
congested worksites.
| Hydraulic System |
The TH406C uses a high-efficiency load-sensing
hydraulic system. The load-sensing architecture ensures fuel-efficient delivery
of hydraulic flow based on operator demand. The boom structure uses replaceable
wear pads, internal hose routing, and multiple lubrication points to ensure
long-term durability.
Hydraulic pump: variable-displacement axial piston pump
Maximum hydraulic flow: approx. 113-140 L/min (30-37 gal/min)
Maximum system pressure: approx. 250-260 bar (3625-3770 psi)
Auxiliary line pressure: approx. 245 bar (3550 psi)
Front auxiliary flow: approx. 60-95 L/min (15-25 gal/min)
Rear auxiliary flow: approx. 80 L/min (21 gal/min)
Boom type: 3-section telescopic boom
Linkage: Z-bar high-breakout linkage
Cycle times:
Boom lift: 7-8 seconds
Boom lower: 5-6 seconds
Tele extend: 6-8 seconds
Tele retract: 5-6 seconds
Tilt forward: 3 seconds
Tilt backward: 3 seconds
Combined boom up/out: 10-12 seconds
Combined boom down/in: 8-10 seconds
| Service Refill Capacities |
Fuel tank: approx. 100-140 liters (26-37 gal)
Hydraulic tank: approx. 65-90 liters (17-24 gal)
Engine oil: approx. 8-12 liters (8.4-12.7 qt)
Cooling system: approx. 12-15 liters (12.7-15.8 qt)
Axle oil: approx. 7-9 liters (7.4-9.5 qt) per axle
| Performance Data |
Rated load capacity: 3700 kg (8150 lb)
Maximum lift height: 6100 mm (20 ft)
Maximum forward reach: 3109 mm (10 ft 2 in)
Drawbar pull varies by engine output: 88-97 kN (19,700-21,800 lb)
| Dimensions and Weight |
Overall width: approx. 2323 mm (91.46 in)
Cab width: approx. 1753 mm (69.02 in)
Overall height: approx. 2400-2500 mm (94-98 in)
Wheelbase: approx. 2950-3200 mm (116-126 in)
Length to fork carriage: approx. 4600-5200 mm (181-205 in)
Ground clearance: approx. 430-500 mm (17-20 in)
Turning radius over tires: 3750 mm (12.3 ft)
Turning radius over forks: 4750 mm (15.6 ft)
Fork lengths: 1067 mm (42 in), 1220 mm (48 in), 1524 mm (60 in)
Free-lift: approx. 300-400 mm
Fork dump angle: approx. 128°
Fork crowd angle: approx. 24°
Operating weight (with carriage and forks): 7736 kg (17,053 lb)
| Maintenance Data |
500-hour service:
- engine oil and filters
- lubrication of all grease points
- radiator cleaning
- electrical system inspection
1000-hour service:
- hydraulic filter replacement
- transmission oil change
- axle oil change
- boom wear-pad inspection
2000-hour service:
- hydraulic oil replacement
- coolant flush
- complete structural inspection
- hydraulic pressure calibration
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