China SINOMACH Heavy Industry Corporation
Manufacturer of Excavator, Wheel Loader, Motor Grader and Road Roller etc.

Backhoe Loader

Backhoe Loader

Our 620CH backhoe loader provides remarkable capability of digging, trenching, back-filling and material handling for many applications including general construction, demolitions and excavations, landscaping, paving, etc.

Features of 620CH Backhoe Loader
1. This loader backhoe is powered by a reliable Dongfeng Cummins engine.
2. It comes with a 4 forward and 4 reverse synchromesh mechanical shift transmission.
3. As a construction vehicle, the backhoe is designed with a full-closed ROPS/FOPS cab which provides a spacious working environment for all day comfort and ensures unmatched visibility.
4. The backhoe loader is driven by 4 wheels equipped with CARRARO front axle and CARRARO wet-type rear axle with multi-disc brake.

5. Versatile four-in-one bucket extends the application range of this wheel digger to loading, scraping, shoving, clamping, paving, lifting, etc. The bucket is controlled by electrical-hydraulic mode.
6. The backhoe loader adopts loader control pilot valve and backhoe valve for easy and flexible operation
7. Extendible dipper improves productivity by reducing the number of travel movements.
8. Extendible arm increases the working range.

Technical Parameters of 620CH Backhoe Loader
Overall Dimensions
1 Overall length (with bucket on ground) 5835mm
2 Overall width (at landing leg) 2240mm
3 Width (to outside of tire) 1993mm (front wheel) 2057mm (rear wheel)
4 Width of load bucket 2313mm
5 Height (to the top of cab) 2720mm
6 Height (to the top of the digging arm) 3548mm
7 Wheel base 2155.5mm
8 Back wheel tread 1700mm
9 Front wheel tread 1880mm
10 Min. ground clearance 355mm for 2WD 275mm for 4WD
11 Min. ground clearance at rear part of the vehicle 350mm(landing leg); 520mm(center)
12 Traveling speed (km/h)
(1) Ⅰ gear forward/reverse 6/6
(2) Ⅱ gear forward/reverse 10/10
(3) Ⅲ gear forward/reverse 20/20
(4) Ⅳ gear forward/reverse 38/38
Main Technical Specifications of the Backhoe Loader
1 Rated load 1700Kg (standard bucket)
2 Operating weight 8000Kg (standard bucket)
3 Rated lifting capability of loading bucket >34KN
4 Capacity of load bucket 1.0m3 (standard bucket)
5 Max. breakout force >49kN (arm); 60kN (bucket)
6 Max. dump clearance 2714mm (standard bucket)
7 Max. dump reach 84mm (standard bucket)
8 Dumping angle at a full height 43.5º(standard bucket)
9 Tilting angle of bucket On ground 41° 41.7° (350)
For transportation
Outside of front wheel 3795mm for 2WD 4300mm for 4WD
10 Max. digging depth (with bucket bottom horizontal) 80mm
11 Min. turning radius 4380mm
12 Lifting time of loading bucket ≤5.1s
13 Lowering time of loading bucket ≤4.0s
14 Dumping time ≤1.5s
Diesel Engine of the Backhoe Loader
1 Model Dong Feng Cummins 4BTA3.9-C110
2 Type Direct injection, Turbocharged, Water cooled
3 Rated output 82kW
4 Rated speed 2200rpm
5 Total displacement of cylinder 3.9L
6 Cylinder diameter /stroke 4×102/120mm
7 Voltage of starting motor 12V
8 Max. Torque 460N.M
9 Starting type Electric
10 Min. specific fuel consumption 225g/Kw.h
Transmission System of the Backhoe Loader
A. Torque Converter
1 Model CARRARO
2 Cooling type Pressure oil circulating
B. Transmission Case
1 Model CARRARO
2 Type Synchromesh mechanical shift
3 Gear shift position 4 Forward and 4 reverse gears
C. 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 Gradeability 30%
6 Max. drawing force 43.5±10% (kN) for 2WD; 70±10% (kN) for 4WD
7 Tire type 4WD front tire 12-16.5NHS-10PR (air pressure 4.4); 2WD front tire 11L-16 (air pressure 4.4)
Rear tire 19.5L-24R4-12PR(air pressure 2.4)
Working Device Hydraulic System of the Backhoe Loader
1 Model of oil pump JHP2050AXCC
2 System pressure 230kgf/cm2
3 Model of loading valve ZL20DJC-02-01
4 Model of priority valve YXL-F160L-N7(W)
5 Model of digging valve WJ30DC-07-01
5 Priority pressure 3Mpa
Steering System
1 Type Front wheel Steering
2 Model of steering gear BZZ5-E160B+FKB-3022
3 System pressure 140kgf/cm2
Oil Capacity
1 Fuel (diesel) 151L
2 Engine lubricating oil 11L
3 Oil for converter and gear box 18.5L
4 Oil for hydraulic system 110L
5 Oil for driving axles (F/R) 7.6+17L

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