Key parts are originally imported from Germany, assure reliable long service life.
ROBIN 4.0P Rammer Specially Japan Engine.
Germany WAFIOS high quality Springs.
Two-way high-strength four-spring device, smooth transmission, small power loss, big vibration trip, strong impact power, efficient operation
The body is made by spaceflight technology made aluminum material, and made by  die-casting and T6 treatment, very strong, flexible and wear-resistant
Full-sealed, oil-immersed impact system to ensure trouble-free run
Advanced small modulus gear linking device
Multi-stage shock absorption design---base plate shock absorber, total damping system and world advanced arm shock absorber are used, so that the machine can run smoothly, operate comfortably, and the fatigue degree of the operator is minimized .
Macromolecule polymer buffer base plate.
Strong impact power, high frequency.
Stable, shock-absorbing, comfortable for operation.
Comply and lower than the Noise Requirement.



Model RTR90
Work quality (kg) 83
Compact frequency (r/ min) 660~750 
Engine Robin EH12-2D
Compact energy (Nm) 106
Centrifugal force (Kn) 16.8
Engine power (Hp) 4
Fuel no. above 90#
Starting height (mm) 65-75 
Oil consumption (L/h) 0.6~0.7
Working speed (m/min) 12-17
Oil tank volume (L) 2/2.3
Area of tamping plate (mm) 280*330
Lubrication SAE10-30
Dimension (mm) 810×410×1010