Backhoe Loader WZ30-25
Description of Backhoe Loader:
Backhoe loader, also known as a loader backhoe, is an engineering vehicle belong to construction machinery/construction equipment. The backhoe loader commonly composes a tractor, fitted with a shovel/bucket on the front and a small backhoe on the back.
Features of Backhoe Loader WZ30-25:
1. Equipped with reliable genuine Cummins engine
2. 4 forward & 4 reverse synchromesh mechanical shift transmission
3. Combined seal cylinder obtains high seal performance and more reliability
4. Improved loader and backhoe performance
5. CARRARO wet type rear axle with multi-disc brake& CARRARO front axle
6. New-type cab with more space, increases comfort and visibility
7. With 2 wheel driving or 4 wheel driving for option
Applications of Backhoe Loader WZ30-25:
The backhoe loaders versatility and compact size makes them one of the most popular construction machinery/construction equipment. These backhoe loaders are widely used for larger projects such as building a house, fixing city roads, mining, etc.
Working principle of Backhoe Loader WZ30-25:
Because the design of backhoe loaders is top-heavy and the swinging weight of the backhoe could cause the vehicle to tip, backhoe loaders use hydraulic outriggers when digging and lower the loader bucket for additional stability.
Specifications of Backhoe Loader WZ30-25:

Overall Dimension
1	Length(with bucket on ground)	7077(mm)
2	Width	2350(mm)
3	Load Bucket width	2313(mm)
4	Height(To the top of the cab)	2720 (mm)
5	Height(To the top of the digging pole)	3424 (mm)
6	Wheelbase	2155.5(mm)
7	Back wheel Tread	1557(mm)
8	Fore wheel Tread	1714(mm)
9	Min. ground clearance	355(mm) for 2WD 275(mm) for 4WD
Main Loading Technical Specification
1	Rated load	1700(Kg)
2	Operating weight	7000KG
	Max lifting capability	>2500KG
3	Rated load bucket capacity	1.0(m3)
4	Max. load breakout force	>40kN
5	Max. dump clearance	2611(mm)
6	Dump reach	726(mm)
7	Dump angle at any position	43.5
8	Min. turning radius
	(1) Outside of bucket	5280(mm) for 2WD 5670(mm) for 4WD
	(2) Center of front wheel	3795 (mm) for 2WD 4300(mm) for 4WD
9	Lifting time of loading bucket	5.1(sec.)
10	Lowering time of loading bucket	4.9(sec.)
11	Dumping time	0.9(sec.)
12	Traveling speed(Km/h),4 forward and 4 reverse
	(1) gear forward	5.8
	(2) gear forward	10.5
	(3) gear forward	20.1
	(4) gear forward	40.2
	(1) gear reverse	7.0
	(2) gear reverse	12.6
	(3) gear reverse	24.3
	(4) gear reverse	48.6
Main Digging Technical Specification
1	Rated digging bucket capacity	0.3(m3)
2	Max. digging depth	4338(mm)
3	Max. digging force	>5010%kN
4	Max. digging radius	5481(mm)
5	Max. dumping height	3737(mm)
Diesel engine
1	Model	Cummins 4BT4.5-C99
2	Type	Direct injection. Turbocharged. Water cooling
3	Rated output	74(kW)
4	Total exhaust of cylinder	4.5(L)
5	Inter-bore of cylinder/stroke	102/138(mm)
6	Voltage of starting motor	12(V)
7	Rated speed	2200(r/min)
8	Max. Torque	414(N.M)
9	Starting type	Electric
10	Min. specific fuel consumption	225(g/Kw.h)
Transmission System
1. Torque Converter
1	Model	CARRARO
2	Cooling type	Pressure oil circulating
2. Transmission case
1	Model	CARRARO
2	Type	Synchromesh mechanical shift
3	Gear shift position	4 Forward and 4 reverse gears
3. Axle and Tire
1	Model	CARRARO
2	Type of main reducer	spiral bevel gear, single stage
3	Type of final reducer	Single stage planetary
4	Max. steering angle	55
5	Tire type	4WD fore tire12-16.5NHS-10PR
2WD fore tire11L-16F3-12PR
Rear tire 19.5L-24R4-12PR
Working Device Hydraulic System
1	Model of oil pump	P257A467PRZA12-6
2	System pressure	215(kgf/cm2)
3	Model of priority valve	WALVOIL SD16/2SD16/6
Steering System
1	Type	Fore wheel Steering
2	Model of steering pump	P257A467PRZA12-6
3	Model of steering gear	150-1219
4	System pressure	140(kgf/cm2)
Oil Capacity
1	Fuel(diesel)	151(L)
2	Engine lubricating oil	11(L)
3	Oil for converter and gear box	18.5(L)
4	Oil for hydraulic system	110(L)
5	Oil for driving axles(F/R)	7.6+17(L)

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