Power characteristics of off-road forklifts: Most of the power is provided by internal combustion engines, mainly diesel engines; Strong power, high reliability, and few faults. The driving characteristics of four-wheel drive off-road forklifts: Most use all wheel drive; Large driving force and climbing slope; High operating speed and good maneuverability. Transmission characteristics of four-wheel drive off-road forklifts: The power transmission is mostly hydraulic or static pressure transmission; Good maneuverability and passability. Excellent ground clearance of off-road forklifts, off-road tires. Four wheel drive with anti slip differential on the front axle. Make the design between the engine and gearbox more compact. Able to work in harsh areas such as rugged terrain, sand or mud. The off-road forklift has a wide body and can carry irregular and wide cargo. The off-road forklift has a high ground clearance and can cross obstacles on the site. The rated load is 3500kg, and the unloading height is 3 meters or 4 meters. The overall weight of the vehicle is 6000kg. The four-wheel drive wheelbase is 1740mm, and the general forklift has a small turning radius of 3700mm. The engine model is Yunnei 4100, and the engine power is 60kw.

Working hydraulic oil circuit, hydraulic oil tank, working pump, multi way valve, lifting cylinder and tipper cylinder 4. Travel oil circuit: transmission oil pan oil, travel pump, one way into torque converter, one way into gear valve, transmission clutch 5. Drive: transmission shaft, main differential, wheel reducer, Guizhou Province high configuration infinitely variable transmission 6. Steering oil circuit: oil tank, steering pump, steady flow valve (or priority valve) steering gear, Steering cylinder 7. The gearbox has two types of off-road forklifts: integrated (planetary) and split (fixed axle), also known as field forklifts. It is a device for loading and unloading materials in poor road conditions such as airports, docks, and stations. It has good maneuverability, off-road performance, and reliability. Generally speaking, the superior performance of high-quality forklifts is often reflected in many aspects such as high, low cost, high reliability, good ergonomic design, and convenient service. Efficiency does not only mean high speed (driving, lifting, descending speed), it also means that the operator needs a short time to complete a work cycle and can maintain this efficiency throughout the entire working time.