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Gas-powered compaction rammer with black handlebar, gray body, and flat metal footplate, viewed from front angle

MBW R422 Rammer – 11" High-Impact Compaction Rammer

by MBW Inc
$3,522.75
Engine Option

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Description

Drive powerful compaction in tight trenches and confined spaces with the MBW R422 Rammer, engineered for granular, mixed, and cohesive soils. Rely on its Honda GX100 power, elevated bellows, and 11" ductile iron shoe to deliver consistent, high‑impact performance on every lift.
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MBW R422 Compaction Rammer

The R422 Rammer ideally suited for the compaction of granular, mixed and cohesive soils in confined areas. A mainstay in contractor and municipal fleets, the R422 offers a highly productive percussion rammer at 145 lbs. The contoured fuel tank provides the largest fuel capacity in its class and effectively baffles engine noise. Power is supplied by Honda GX100 engine.

• Elevated bellows placement for trench applications
• Patented polyethylene slide bearings provide minimal internal wear
• 11” ductile cast iron tamping shoe
• 4” and 6” trench shoe options available

US & International Patents

5 YEAR WARRANTY ON BELLOWS AND PERCUSSION SYSTEM BEARINGS
Endurance testing of the new design exceeded even MBW’s expectations. As a result, MBW gas powered rammers now provide a 5 YEAR WARRANTY on percussion system slide bearings and bellows.

LIMITED WARRANTY. Some restrictions may apply.

MBW Compaction Rammer Brochure

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MBW R422 Rammer Operator's Manual

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  • MBW Rammer Assesmbly
  • MBW Rammers
  • MBW Rammer Demonstration
Product Warranty

MBW R422 Rammer – 11" High-Impact Compaction Rammer (SKU:442H) stands up to extreme testing and come with a one-year warranty for engine, one-year warranty for machine.

Specifications
R422
Shoe Size
11 x 13 in (28 x 33 cm)
Engine Option
Honda GX100 (145 lb/66 kg) Honda GX100 w/Oversized Air Filter (149 lb/68 kg)
Travel Speed
Up to 55 ft/min (16 m/min)
Compaction Depth*
Up to 18 in (45 cm)
Compaction Area
3025 sq ft/hr (281 sq m/hr)
Percussion Rate
Up to 720 blows/min

*Clean sand, optimum moisture. MBW recommends that lifts not exceed 12″
( ) Metric Measurements.
Specifications subject to change without notice.