Model – Weichai WP4G130E22

Number of Cylinders – 4

Type – 4-cycle, Direct Injection, Water-cooled

Aspiration – Turbocharged

Bore x Stroke – 105*130mm

Displacement – 4.5L

Gross Power – 97.5kW @ 2200rpm

Max. Torque – 560N.m @ 1400~1600rpm

Rated Fuel Consumption – 215g/kW.h

Emission – China-II

Type – Hydrostatic, All-wheel Drive

Driving Pump – Mechanical Control, Variable Piston Pump 75ml/r

Axle Drive – Variable Piston Motor

Drum Drive – Constant Piston Motor

Tire – 23.1-26-8PR/20.5-25-16PR

Max. Grade Ability – 48%

Forward,I,II – 0~5.3km/h,0~9.9km/h

Reverse,I,II – 0~5.3km/h,0~9.9km/h

Type – Hydraulic Power, Articulated Steering

Steering Angle – ±33°

Oscillating Angle – ±12°

Min. Turning Radius – 6400mm

Service Brake – Hydraulic Inertia Brake

Parking Brake – Multi-disc Brake, Hydraulic Control

Emergency Brake – Hydraulic Inertia Brake & Multi-disc Brake

Width – 2130mm

Diameter – 1500mm

Drum Shell Thickness – 20mm

Type – Hydrostatic, Electric Control

Vibration Pump – Variable Piston Pump

Vibration Motor – Constant Piston Motor

Frequency, Low – 30Hz

Frequency, High – 36Hz

Amplitude, High – 2mm

Amplitude, Low – 1mm

Centrifugal Force, Maximum – 290kN

Centrifugal Force, Minimum – 200kN

Fuel Tank – 260L

Hydraulic Oil Tank – 100L

Engine Coolant – 17L

Engine Crank Case – 11L

Battery – 2x12V, 120Ah

Alternator – 28V, 80A

Starter Motor – 24V, 6kW

Operating Weight – 12000kg

Axle Load, Drum – 7000kg

Axle Load, Wheel – 5000kg

Static Linear Load (at Drum) – 327N/cm

The Shantui SR12-B6 is a robust 12-ton single-drum vibratory roller designed for powerful, consistent compaction on roads, foundations, and large construction sites. Equipped with a reliable Weichai engine and high-impact vibration system, it delivers strong compaction force, smooth operation, and excellent traction. With its durable build, comfortable operator cabin, and low-maintenance design, the SR12-B6 offers outstanding performance and efficiency for demanding compaction work.
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