Backhoe Loader

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638W-T Backhoe loader

This versatile machine integrates digging and loading capabilities, with a rated bucket capacity of 1m³ (loading) and 0.3m³ (digging). Maximum digging depth reaches 3.96m, and the maximum radius 5.79m, easily handling earthmoving, material transport, and site leveling.

Main Features

This versatile machine integrates digging and loading capabilities, with a rated bucket capacity of 1m³ (loading) and 0.3m³ (digging). Maximum digging depth reaches 3.96m, and the maximum radius 5.79m, easily handling earthmoving, material transport, and site leveling.

Front and rear four-speed design with a top speed of 36km/h, combined with a 2280mm wheelbase and wide tyres (front 14-17.5-16PR / rear 19.5L-24-14PR), ensures stable travel across challenging terrain and efficient relocation.

Equipped with Weichai WP4G100E220 high-efficiency engine, rated 73kW, max torque 420N·m, delivering high output with low fuel consumption, meeting National II emission standards. CARRARO transmission with torque converter provides smooth shifting and strong traction (≥67KN), ensuring durability and reliability.

130L large-capacity hydraulic oil tank supports continuous operation; maximum unloading height of 2.72m and distance of 900mm allow precise and controlled operations, improving efficiency.Cab height 3100mm provides a wide field of vision with ergonomically designed controls. Paired with a rotating suspension seat, operators can work comfortably over long hours.

With an operating weight of 7820kg, rated load of 2500kg, and maximum lifting force of 2500kg, the machine uses high-strength steel and branded core components (Weichai engine, CARRARO transmission and drive axle), offering strong impact resistance, low failure rate, and about 30% longer service life.

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Main Specifications
Overall Dimension
1 Length(with bucket on ground) 7600mm
2 Overall width(at stabilizer ) 2230mm
3 Load Bucket width 2220mm
4 Height(To the top of the cab) 3100mm
5 Height(To the top of the digging pole) 3800 mm
6 Wheel base 2280mm
7 Back wheel Tread 1750 mm
l  Main Loading Technical Specification
1 Rated load 2500KG
2 Operating weight 7820kg
3 Rated bucket capacity 1m³
4 Max. dump clearance 2720 mm
5 Dump reach 900 mm
6 Min. turning radius
(1) Outside of bucket 5410mm
(2) Center of front wheel 4100mm
7 Max lifting capability 2500KG
8 Max. load breakout force ≥45KN
Main Digging Technical Specification
1 Rated digging bucket capacity 0.3m³
2 Max. digging depth 3967 /3424mm
3 Max. digging radius 5796/5955 mm
4 Max. dumping height 3813/3780 mm
5 Max. digging  force ≥44KN
6 Max. Digging Height 5346/5449 mm
Diesel engine
1 Model Wei Chai  WP4G100E220
2 Type Direct injection. Turbocharged. Water cooling
3 Rated output 73 (kW)
5 Total exhaust of cylinder 4.5(L)
9 Rated speed 2200(r/min)
10 Max. Torque 420(N.M)
Transmission System
1 Torque Converter Model CARRARO
Cooling type Pressure oil circulating
2 Transmission case Model CARRARO
Type Synchromesh mechanical shift
3 Axle and Tire Model CARRARO
Type of main reducer spiral bevel gear, single stage
Type of final reducer Single stage planetary
4 Gear shift position 4 F, 4 R
5 Speed 36km/h
6 Max. drawing force ≥67KN
7 Size of tire 14-17.5-16PR
19.5L-24-14PR
Oil Capacity
1 Fuel(diesel) 130 L
2 Engine lubricating oil 11 L
3 Oil for converter and gear box 22 L
4 Oil for hydraulic system 130 L
5 Oil for driving axles(F/R) 7.6 L+17 L
Standard Configurations
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