The Wacker Neuson BS70-4As 4-stroke rammer delivers strong compaction for demanding jobs. It’s powered by a reliable Honda engine that eliminates the need for fuel mixing. Built for deep compaction, this rammer is perfect for trenches, backfills, and other tight areas. With low emissions and a quiet engine, it’s a solid choice for both outdoor and indoor applications. Durable, balanced, and easy to maintain—this is a rammer you can count on.
Key Features:
- 4-stroke Honda engine – easy starts, no fuel mix needed
- High impact force – ideal for tough soil or trench work
- Low emissions – meets EPA and EU standards
- Compact & powerful – fits in tight spots, hits hard
- Durable design – built for long jobsite life
- Large fuel tank – longer run times with fewer refills
| Operating Fluids | ||
|---|---|---|
| Lubrication Interval | 250 h | 250 h |
| Oil Volume | 0.900 L | 0.238 gal (US) |
| Oil Specification | SAE 10W-40 | |
| Engine | ||
| Fuel Management | Carburetor | |
| Air Cleaner | Dry Air Filter | |
| Engine Operating Mode | Four-stroke | |
| Cooling | Air Cooling | |
| Exhaust-Gas Limit | US Phase 3, EU Stage V, China Stage 2 | |
| Oil Specification | SAE 10W-40 | |
| Operating Engine Speed | 4,100 1/min | |
| Fuel Consumption | 1.10–1.00 L/h | 0.3 GPH (US) |
| Fuel Consumption (kg) | 0.75 kg/h | 1.7 lb/h |
| Idling Speed | 1,850 1/min | |
| Operating Power | 2.7 kW | 3.6 HP |
| Effective Power | 2.7 kW | 3.6 HP |
| Power Rating Max. | 2.7 kW | 3.6 HP |
| Tank Capacity | 2.90 L | 0.8 gal (US) |
| Oil Filling Max. | 0.30 L | 0.1 gal (US) |
| Nominal Engine Speed | 3,600–4,200 1/min | |
| Engine Type | Gasoline Engine | |
| Cylinder | 1 | |
| Engine Manufacturer | Honda | |
| Engine Designation | GXR120 | |
| Cylinder Capacity | 121 cm³ | 37.4 in³ |
| Standards (Power) | SAE J1349, ISO 3046-1 | |
| Spark Plug(s) | NGK CR5HSB, DENSO U16FSR-UB | |
| Fuel Type | Gasoline | |
| Mechanical – Output Details | ||
| Forward Running | 7.00 m/min | 0.4 fps |
| Transmission | FKK | |
| Power of Impact | 20 kN | 4,496.2 lbf |
| Area Capacity | 118 m²/h | 1,270.2 ft²/h |
| Engaging Speed | 2,500 1/min | |
| Number of Blows | 656 1/min | |
| Electrical System | ||
| Display Equipment | Operating Hours Counter | |
| Electrode Distance | 0.60–0.70 mm | 0.024–0.028 in |
| Operating Elements | Pushbutton OFF | |
| Mechanical Details | ||
| Operating Weight | 80.0 kg | 176.4 lb |
| Length | 673 mm | 26.5 in |
| Height | 965 mm | 38.0 in |
| Width | 343 mm | 13.5 in |
| Length Ramming Shoe | 340 mm | 13.4 in |
| Width Ramming Shoe | 280 mm | 11.0 in |
| Stroke at Tamper | 73 mm | 2.9 in |
| Environment Data | ||
| Operating Temperature Range | -10 to 40 °C | 14 to 104 °F |
| Storage Temperature Range | -30 to 50 °C | -22 to 122 °F |
| Sound Level LpA | 92.0 dB(A) | |
| Sound Level LpA (Standard) | EN 500-4 | |
| Sound Power LWA (Measured) | 104.0 dB(A) | |
| Sound Power LWA (Guaranteed) | 108.0 dB(A) | |
| Sound Power LWA (Standard) | EN 500-4 | |
| HAV Summation (Average) | 8.6 m/s² | 28.2 ft/s² |
| HAV Summation (Standard) | EN 500-4 | |
| Uncertainty in Measurement (HAV) | 0.7 m/s² | 2.3 ft/s² |
