The heavy duty Rotojec shank steps the Roto-Jec grout injection system up to a 4 in. OD shank running in a 5-3/4 in. OD body, adding cross-section where drilling loads, torque and abrasive grout service demand it. Drive ends in C64, H55 and H64 connect to grout ends spanning R32 to R51, T45 to T76, TTN30 to TTN52 and X32 to X76, matched to the 4 in. ID heavy duty Rotojec body.
It shares the Roto-Jec layout closed drive end toward the drill, open grout end downstream so moving up from the standard duty shank is a matter of matching threads. Replacement seal sets keep the body sealed around the larger shank, and rigs that inject through a rotating hose connection instead can run the complete grout swivel.
- 4 in. OD shank with 5-3/4 in. OD body for heavy duty grout injection service
- Drive ends: C64, H55 and H64
- Grout end threads include R32 to R51, T45 to T76, TTN30 to TTN52 and X32 to X76
- Hardened steel construction for high-load, high-torque and high-impact service
- Applications: soil stabilization, foundation and micropile work, mining and construction grouting
- Stocked by Crowder Supply in Denver
Heavy Duty Rotojec Shank FAQ
What thread combinations are available?
Drive ends come in C64, H55 and H64, connecting to grout ends across R32 to R51, T45 to T76, TTN30 to TTN52 and X32 to X76 order the drive-end/grout-end pairing that matches your string.
Standard duty or heavy duty which shank do I need?
The standard duty runs a 3 in. OD shank in a 4-3/4 in. OD body; the heavy duty steps up to a 4 in. OD shank in a 5-3/4 in. OD body for higher drilling loads, torque and abrasive grout service. The two share the same Roto-Jec layout, so upgrading is a matter of matching threads.
What body and seals does the heavy duty shank run in?
It pairs with the 4 in. ID heavy duty Rotojec body, and replacement seal sets keep the body sealed around the shank in abrasive grout service.
