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Adopting 6×4 driving type, equipped with Weichai WP10 series diesel engine with High-pressure & Common rail or EGR ranged from 290PS to 430PS, various models of FAST gearbox, Hande axles and firm frame, Dayun tractor truck CGC4250 achieves domestic first-class level and also enjoys comfort of Euro-type cab.


1、European driving cab
The European large cab is ergonomically designed and comfortable. It enables the cab to bear over 50% impact by means of
adopting all-metal frame, bird's nest structure design, domestic pioneering energy-absorbing bumper and four-point suspension structure. The designs all enable the cab’s safety and comfort.

2、Spacious and comfortable sleeper design
Spacious sleeper in the cab and thickened sleeper pad enable the cab to be more comfortable for rest. Good sleeper fabric
texture makes it more dirt resistant and durable. The fixing structure of upper bunk becomes more reasonable, the sleeper support and safety protection device are increased and the fixed mode of the sleeper sunshade is also improved.

3、Multi-bit precise-controlled instrument panel
An adjustable LED five-level circulation background lamp is used. The indicator indicates precise reading and self-testing
can guarantee smooth operation.

4、Automatic Cruise Control System
The user can freely set driving speed and keep driving at fixed speed. The intelligent setting can reduce oil consumption
and enhance driving stability.


1、Weichai Power
Weichai engine is designed with the new bypass valve pressurizer, to improve the working efficiency under low speed. The
new engine can increase the low-speed torque by about 12% and reduce the oil consumption by 10%-15% with the oil calibration of the oil spraying pump in the low-speed area. Weichai engine has reliable quality and long lifetime, which make driving more comfortable in effective and economical way.

2、Hande axle
Shaanxi Hande axles are fully optimized. The axle housing is completely thickened and its work section height is increased.
A new quenching technology is applied to the whole half housing, so the whole bending-resistance capability of the driving axle is improved by about 30%. The new quenching technology can enhance gear strength and eliminate possible gear collision.

3、Fast gearbox
Equipped with the heavy automobile transmission which applied American Eaton technology from Shaanxi Fast. Its novel and
advanced design eases gear switching and also improves the bearing capability which is more stable than its predecessor.

4、Drive shaft with Benz technology
The optimized Benz commercial car drive shaft improves the gear shape of the spline and strengthens the gear root. The
sliding fork is upgraded and improved. The spline shaft is optimized to match the spline cover. The new end gear drive improves bearing on the connection flange. The new nylon painting technology improves the bearing status of the working drive shaft, reduces drive impact and completely reduces internal wearing loss.

Dayun automobile is equipped with the equal-work section and high-break work section twist-resisting and bending-resisting frame. The bending-resisting capability of the truck’s longitudinal beam and round girder is also strengthened by using the Stery technology.


CGC4250Main Technical Parameters
Curb Weight(kg)8840
Gross Vehicle Weight(kg)25000
Fifth Wheel Max. Payload(kg)16030
Permitted Total Towing(kg)40000
Max. Speed(km/h)90(full-loading)、120(non-loading)
Max. Gradeability(%)30
Engine TypeWP10.290、WP10.300N、WP10.336、WP12.336N、WP10.310E32、 WP10.340E32、WP12.375N、WP10.380E32、WP12.400N、WP12.430N
Engine ManufacturerWeichai
Driving Type6X4
Driving Axle TypeSingle Reduction/Double Reduction
Fifth Wheel90#、50#
Overall Dimensions(mm)6855X2490X3515(high roof)、6855X2490X3160(low roof)
Main EquipmentsWeichai power、Fast gearbox、6.5T/7.5T front axle、Hande single reduction/double reduction dual rear axle、Hydraulic steering、Pneumatic clutch、Manual air conditioner、Cab assembly(high-roof/low-roof)

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Q:In the operation of special equipment, what kind of tractor?
Truck fork lifting height is generally around 210mm, mainly used for horizontal handling of pallets and cargo handling.
Q:In order to increase the number of quasi - passenger cars of large passenger cars, they shall be entitled to drive medium - sized passenger cars or large freight cars with the number of quasi - frame type cars for more than a few years
For large passenger car type, has been driving medium-sized passenger cars or large trucks driving for more than five years, or have a driving a tractor driving for more than two years, and in the application before the period of five scoring record of 12 points recorded No.
Q:Is there any change in the payload quality of the tractor in the new traffic law?
The new traffic law is calculated according to the number of axles loading mass.Three axle car limit 30 tons, four axle car limit 40 tons, five axis and five axle to get on the train limit 55 tons.
Q:What are the most popular tractors for consumers?
The domestic tractor at home and the best is the most expensive heavy truck joint jointly built by Chery automobile, Yuchai power, fast gear box, in combining the cooperation, including joint heavy truck tractor U460 is currently the largest horsepower tractor, price of the most expensive, priced at 640 thousand yuan. However, as a domestic brand independent heavy truck, itself in the visibility is not high, the price is too expensive, cost-effective no advantage, it is better than now sales of very good Dongfeng dragon and liberation J6. Especially Dongfeng Tianlong, has been leading heavytruck sales champion, Dongfeng Tianlong 420 is a good traction car, the car uses the Renault DCI engine, with strong power and fuel economy, and the quality is very reliable, the gearbox is a famous Germany ZF16 gearbox, the steering system is used ZF steering, the car is is the use of these imported core hardware, so that the car cost increase many, 360 thousand of the price is acceptable, it is now the reason why Dongfeng Tianlong sell fire.
Q:Matching requirements for tractors and semi trailers
Tractors and semi - Trailer collocation, from height, to consider the height of the front traction seat, to determine the height of the suspension.General domestic several large tractor production giant's height is not uniform, at 1.35 meters --1.42 meters.
Q:What do you mean by "6 * 4" and "4 x 2" in the tractor?
Hello, 6 x 4, 4 x 2 refers to the drive in the form of a heavy vehicle, a vehicle tire number refers to the digital group, after a number of a tire number of the drive shaft, the two numbers by 2, is the car number and the number of drive shaft axis
Q:What is the biggest difference between heavy truck, tractor and truck?
As the name suggests is a tractor pulling a trailer, you said the truck should only is a single truck, the biggest difference is the tractor front and container are separated, with a traction wheel together, truck is one of the front and the container are packed in a frame.
Q:What's the quality of PA tractor?
340 horsepower can be used. If you buy a standard load pull light skin PA M4. if you want to buy a second generation if heavy tractor to buy 507 less traction, then pull the card to buy. The whole dragon is a branch of the Dongfeng liuqi. Technology also works. If you buy it, be sure to be popular. Or accessories must suffer.
Q:Which tractor is good in China?
If you want to choose, A7 first ruled out, the experimental product one, nothing to say, in a consideration, J6 and European vine, it is best to consider Dragons
Q:Heavy truck traction saddle difference, the difference between 50 and 90#, medium and heavy difference
The function of the saddle is to link the tractor or the trailer. There are several kinds of 50mm and 90mm. The sizes and weights are different. Because now overloading, overloading, and so on, so tend to lightweight, so generally choose 50.

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