Off-road forklift is a kind of engineering vehicle that can load, unload, stack and carry things safely and efficiently on the slope and uneven ground. Like balanced forklift, it can install fork or replace a variety of equipment to improve the operation efficiency. There are many kinds of structure of cross-country forklift.

The structure characteristics of off-road forklift：

1. With good passability and off-road all-wheel drive. There is no differential between the shafts, using large diameter wide base off-road tires, the minimum ground clearance of the vehicle is more than 300mm, departure Angle of more than 30°.

2. Adopt relatively connected frame. Frame swing Angle is generally up to +30°~40°, the steering system is simple, do not need to use expensive steering drive axle, can achieve a small turning radius, steering wheel, so that the frame horizontal swing, so that the fork is easy to align with the material, for small tonnage off-road forklift, can use the integral frame, single bridge drive, drive axle with differential lock.

3. All-wheel braking. In addition to the small tonnage forklift using expanded shoe brake structure, most of the clamp disc brake, tonnage forklift also use wet brake. Independent hand braking is the most common parking brake.

4. For 2T-3T off-road forklift, its front and rear bridges are common.

5. The rear axle of the cross-country vehicle is fixed with the frame, and the front axle can swing vertically relative to the frame +8°~12°. A supporting hydraulic cylinder is arranged between the frame and the front axle. When the forklift truck is lifting, the lifting door frame is maintained in a lateral plumb state by manipulating the hydraulic cylinder. When the vehicle is running, the oil paths in the upper and lower cavities of the hydraulic cylinder are connected through the damping holes, which is beneficial to improve the ride comfort of the vehicle.

6. There is a larger wheelbase and wheelbase. Added directional and longitudinal stability to the vehicle.

7. Good mobility. The maximum speed is generally (30~40) km/h. Power factor of more than 0.65, good acceleration, and has 25°~30° climbing ability.

8. Large door frame angle. This is necessary for safe operation and driving on uneven ground. It is generally 10°~15° in the front and 15° in the back.

9. Setting of driver's seat. In order to ensure that the operator has a good view when loading operation, the driver seat is generally arranged in front. For the connected forklift truck, put it on the front frame as far as possible, and install the roof frame cab with FOPS/ROPS according to different operation requirements.

10. Walking system. Similar to the loader, there are mechanical transmission (Me), hydraulic shift mechanical transmission (HyC), hydraulic transmission (T/C) and hydrostatic transmission (HYD). The difference is that full power matching method is adopted, and its maximum load is full load climbing condition.

Construction of off-road forklift:

Off-road forklift generally consists of engine, chassis, working device and electrical equipment.

Characteristics of four-wheel drive off-road forklift:

1. The hydrostatic transmission efficiency is high, the working condition of high efficiency zone range is wide, can save resources, and simplify the structure of heat dissipation, cooling and other auxiliary facilities.

2. The use of variable pump and variable motor combined form of closed circuit, to achieve automatic stepless regulation, and the diesel engine power remains relatively constant, the highest power utilization rate, the whole machine operation economy is good.

3. Using the double DA control variable system, under the compound operating condition, the diesel engine speed decreases, but the pressure of the hydraulic system remains unchanged, so that the traction force is not

4. The overall parameters of the machine are optimized to the maximum extent, so that it can provide the maximum productivity and the highest economic benefits.

The application scope of off-road forklift:

Off-road forklifts are mainly used in urban construction sites, pipeline laying, oilfield development, field projects in mountainous areas and forest areas, as well as loading and unloading of containers in docks and freight yards, and loading and unloading of military supplies in wartime.

Instructions for off-road forklift:

The working device structure of the off-road forklift is the same as that of the balanced forklift truck, but the difference lies in the completely different chassis structure.

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