Descriptions of Qingzhuan Self Tipping Semi-trailer:
The hydraulic system of the self tipping trailers is composed of European sleeve-type front-positioned cylinder and Qingzhuan Pump valve etc.
This kind of dump trailer has high carrying capacity, low center of gravity and stable operation etc.

Application of Qingzhuan Self Tipping Semi-trailer:
The heavy duty truck is suitable for transporting various kinds of ore, powder particle and gravel etc. and any other kinds of bulk commodity with small repose angle and easy to unload.
Loading mass: 25-45 ton.

Descriptions of Specific Type of Self Tipping Semi-trailers:
1. Self Tipping Semi-trailer QDZ9341ZZX
This double bridge heavy duty truck is newly developed by our company.
Carriage volume: 25.4 m³
Max. carrying capacity: 22.1 ton
Curb Weight: 11.56 ton
Sinciput cylinder and fixed front board and side boards; Self discharging by opening the rear board; Suitable for transporting coal, granular cement and grain etc.

2. Self Tipping Semi-trailer QDZ9440ZZX
Three-bridge self tipping trailer;
Carriage volume: 36.4 m³
Max. carrying capacity: 31.1 ton
Curb Weight: 12.87 ton
Suitable for transporting coal, granular cement and grain etc.


3. Self Tipping Semi-trailer QDZ9370ZZX
Side tipping semi-trailer;
Carriage volume: 30 m³
Max. carrying capacity: 25 ton
Curb Weight: 12 ton;
Multi-stage cylinder; rectangular carriage; fixed front/rear board and right-hand board; self-tipping from the left side of truck. Suitable for transporting coal, granular cement and grain etc.

4. Self Tipping Semi-trailer QDZ9550ZZX
Side tipping semi-trailer;
Carriage volume: 30-35 m³
Max. carrying capacity: 40 ton
The carriage is frameless flexible deformation structure. And it is U-type while loading and dustpan-type while unloading.
Small centre-of-gravity shift;
Small space covering etc.

Parameters of Qingzhuan Self Tipping Trailer:

Item			Technical Requirement
Dump Trailer Type			QDZ9340ZZX	QDZ9440ZZX	QDZ9370ZZX	QDZ9550ZZX
Trailer Train (mm)		Length	13100	13672	14000	14496
		Width	2492	2492	2498	2495
		Height	3410	3557	3500	3500
Semi-trailer		Length (mm)	8500	9300	10730
		Width (mm)	2300	2300	2498
		Height (mm)	1300	1700	3500
		Carriage Volume (m3)	25.4	36.4	29.9 (39.6)	31.5
Semi-trailer	Weight	Wheelbase (mm)	5540+1300	5050+1300+1300	6230+1300	6525+1350
		Wheel-center-distance (mm)	1820	1820	1840	1860
		Front/rear overhang	1430/1150	1580/1150	1958	1576/786
		Departure angle	33	26	19
		Curb weight	11566	12866	12055	15250
		Rated carrying-capacity	22100	31000	24945
		Total mass	33666	43866	37000
		Max. saddle weight	12296	15507	11400
	Vehicle- bridge	Axle number	2	3	2	2
		Tyre size	12.00—20	12.00—20	12.00—20	12.00—20
		Tyre number	8	12	8	8
		Type	BPW	BPW	BPW	BPW
		Model	Stamping and welding	Stamping and welding	Stamping and welding	Stamping and welding
	Breaking System	Service Braking	Double-loop brake	Double-loop brake	Double-loop brake	Double-loop brake
		Parking Braking	Exhaust brake	Exhaust brake	Exhaust brake	Spring breaking
		Emergency Braking	Exhaust brake	Exhaust brake	Exhaust brake	Exhaust brake
	Suspension	Model	Duplex	Duplex	Duplex
		No. of leaf spring	7	7	9
Outrigger	Model		mechanism or manual, worm-worm gear duplex double-speed
	Manufacturer		JOST		Zhenjiang Baohua
Wheelbase (mm)	Tractor	1st to 2nd axis	3450	2925
		2nd to 3rd axis	1450	1350
	Tractor’s 3rd axis to 1st axis of Semi-trailer		4365	4080		6525
	Semi-trailer	1st to 2nd axis	1300	1300
		2nd to 3rd axis		1300
		Traction pin to 1st axis of semi-trailer	5540	5050
Min. ground clearance (mm)		Semi-trailer	403	403	403
Min. turning radius (mm)			18	18.4	18
Outrigger terrain clearance (mm)			403	403	403
Distance between outrigger and 1st axis of the semi-trailer (mm)			2546	2546	3632