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The Wacker Neuson BS70-4AS is designed for high performance and long life. The high stroke energy, high percussion rate and long shoe stroke combined with a fast advance travel achieve excellent compaction results. The compact design and low center of gravity is ideal for the compaction of cohesive and mixed soils in trenches and other confined areas.
  • Easy to start and simple operation. Convenient single-lever operation for start-up, idling and shut-off
  • Low oil protection: When starting the unit, a sensor detects no or low oil and does not allow the engine to start, protecting the engine
  • A unique four-stage air filtration system provides a virtually dust-free engine for longer life and improved durability. The system includes a last chance filter that protects the engine during air filter maintenance

 Transport Handle

Comfortable transport

  • Large and flexible transport lug
  • Easy loading and stowing by transport rollers on the handle

4 Stage Air Filter

4-stage air filter system

  • Very good filter performance thanks to 4-fold air filter (consisting of cyclone filter, paper lamella filter and double foam filter)
  • Clean intake air ensures optimum engine performance
  • Long service intervals due to high filter capacity

GX120 Honda Engine

An engine with a strong reserve

The robust GXR 120 engine from Honda operates in normal operation well below its performance limit. This protects the engine and extends its service life.


Comfortable operation

  • Only one lever for idling, starting and stopping

Technical Specifications


Operating data

Operating weight  lb176.4
Ramming shoe size (WxL)  in11 x 13.4
L x W x H  in26.5 x 13.5 x 38
Percussion rate max.blows/min678
Stroke at the ramming shoe in2.9
Impact force  lbf4,496
Operating speed  ft/min23
Surface capacity – Compaction ft²/h1,270

Engine / Motor

Engine / Motor type GXR 120
Engine / Motor manufacturer Honda
Engine / Motor Air-cooled single-cylinder four-cycle gasoline engine
Displacement  in³7.38
Operating performance (DIN ISO 3046-1) hp3.6
at rpm  rpm3,600
Fuel consumption  US gal/h0.26
Fuel tank capacity  US gal0.77
CO2 (NRSC) * g/kW-hr674