DYWI ® Drill System
Accessories - Rotary Injection Adaptors
Rotary injection adaptors are used for simultaneous drill and grout installation, to inject grout into the bore of a rotating DYWI ® Drill Hollow Bar. The unit comprises of a heat treated shaft (to withstand the impact energy from the hammer drive) and a grout bottle into which the grout is pumped. Inlet ports within the shaft allow grout to be pumped into the bore of the bar.
A locator frame is required (bolted to the drill sledge) to prevent the grout bottle rotating with the shaft, as well as positioning it at the correct location to enable unrestricted operation of the hammer.
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| Rotary Injection Adaptor (rig installation) | Rotary Injection Adaptor (rig installation) |
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| Air Flush Shank (hand held installation) | Grout Injection Adaptor (for subsequent grouting) | Balance Rod |
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| Reducing Coupler | Reducing Coupler (with centre bridge) |