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1. The backhoe loader 620CH is installed with Cummins engine from Dongfeng.
2. It has four 4 forward and 4 reverse synchromesh mechanical shift transmissions.
3. For high safety, the ROPS/FOPS cab is designed with wide space to create comfortable driving environment and good visibility.
4. This product can be manufactured with 4 wheel drive for option. The construction machinery uses CARRARO front axle and CARRARO wet-type rear axle with multi-disc brake.
5. The pilot valve controlled loader, as well as the backhoe valve, makes for easy and flexible operation of the backhoe loader.
6. Smartly designed, the extendible dipper for the excavator greatly reduces the travelling distance and improves the working efficiency.
7. The arm of the wheel loader can be extended to increase the working range.

Technical Specification:

Overall Dimension of Backhoe Loader
1 Length(with bucket on ground) 5835(mm)
2 Width (at landing leg) 2240(mm)
3 Width(to the outside of the tire) 1993(front wheel) 2057mm(rear wheel)
4 Bucket width 2313(mm)
5 Height (to the top of the cab) 2720(mm)
6 Height (to the top of the digging arm) 3548(mm)
7 Wheelbase 2155.5(mm)
8 Back wheel tread 1700(mm)
9 Front wheel tread 1880(mm)
10 Min. ground clearance 355(mm) for 2WD 275(mm) for 4WD
11 Min. ground clearance of tail 350(landing leg), 520(centre)
12 Traveling speed (4 forward and 4 reverse gears)
  (1) I gear forward/reverse 6/6(km/h)
(2) II gear forward/reverse 9.6/9.6(km/h)
(3) III gear forward/reverse 20.5/20.5(km/h)
(4) IV gear forward/reverse 38/38(km/h)
Main Loading Technical Specification of Backhoe Loader
1 Rated loading capacity 1700kg(standard bucket)
2 Operating weight 8000kg(standard bucket)
3 Rated bucket lifting capacity >34KN
4 Bucket capacity 1.0m3(standard bucket)
5 Max. breakout force >49kN(swinging arm), 60(bucket)
6 Max. dumping clearance 2714mm(standard bucket)
7 Max. dumping reach 845mm(standard bucket)
8 Dumping angle at full height 43.5º(standard bucket)
9 Tilting angle of bucket On ground 41°
For transportation 41.7° (350)
10 Max. digging depth (with bucket bottom horizontal) 80mm
11 Min. turning radius (centre of the tire outside) 4380mm
12 Lifting time of loading bucket ≤4.5(sec.)
13 Lowering time of loading bucket ≤3.5(sec.)
14 Dumping time ≤1.5(sec.)
Main Digging Technical Specification of Backhoe Loader
1 Rated digging bucket capacity 0.2(m3)
2 Max. digging depth 4405(mm)
3 Max. digging force >56.1±10%kN(bucket lip)
4 Max. digging radius 5390(mm)
5 Max. dumping height 3510(mm)
6 Central offset 550mm
7 Swing angle 180°
8 Max. rollback angle of digging bucket 201°
Diesel Engine
1 Model Dongfeng Cummins 4BTA3.9-C110 Cummins B4.5(Optional)
2 Type Direct injection, turbocharged, water-cooled Direct injection, turbocharged, water-cooled
3 Rated output 82 kW/110HP 74 kW/99HP
4 Rated speed 2200rpm 2200rpm
5 Total displacement of cylinder 3.9(L) 4.5(L)
6 Cylinder diameter /stroke 102/120(mm) 102/138(mm)
7 Voltage of starting motor 12(V) 12(V)
8 Max. torque 460N.m at 1500rpm 414N.m at 1500rpm
9 Starting type Electric Electric
10 Min. specific fuel consumption 207(g/kW.h) 225(g/kW.h)
Transmission System of Backhoe Loader
I. Hydraulic Torque Converter
2 Cooling type Pressure oil circulating
II. Gearbox
2 Type Synchromesh mechanical shift
3 Gear shift 4 forward and 4 reverse gears
III. Axle and Tire
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 Backhoe Loader
1 Model of hydraulic pump HP330B478BIAC12-98-KHAC07-1 (Ningbo HERCURES)
2 System pressure 230(kgf/cm2)
3 Model of loading valve HC-D16/3/60090333ES (Italy HYDROCONTROL)
4 Model of priority valve 152B2238 (DANFSS)
5 Model of digging valve HC-D16/7/60120753IN (Italy HYDROCONTROL)
6 Pilot pressure 3MPa
Steering System
1 Type Front wheel steering
2 Model of steering gear 150-1219 (EATON)
3 System pressure 140(kgf/cm2)
Oil Capacity of Backhoe Loader
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)