Please call out the manufacturer we are threading to, so that we may insure we have a current sample and all components will mate properly
Crowder Supply keeps a large stock of finished thread combinations in stock in both Standard and HD shanks.
Assembly consists of a Grout Body and a Rotojec Shank. In order to have a complete Grout Swivel Assembly, you must order both.
Threads will be left-hand unless we are notified of right-hand requirements.
Standard Duty - 3" OD Shank - 4-3⁄4" OD Body |
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Part Number | Wt. | Price | |
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Grout Injection Body (with seals) | RJ-BODY | 25 | $762.00 |
Seals/Double Lip (set of 4) | RJ-SEALS | 0.1 | $73.00 |
Part Number | Wt. | Price | |
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Grout Injection Body (with Seals) | RJ-BODYHD | 32 | $1,016.00 |
Seals/Double Lip (set of 4) | RJ-SEALSHD | 0.1 | $142.00 |
Part Number | Wt. | Price | |
---|---|---|---|
Grout Injection Body (with seals) | RJ-BODYSD | 25 | $2,059.00 |
Seals/Double Lip (set of 4) | RJ-SEALSSD | 0.1 | $170.00 |
We keep a large stock of Through-Hardened RotoJec Shank Blanks to run RUSH orders. Typically we can have any thread combination done in 1-3 days with machine set up fee.
Machine set up costs on RUSH or less than MOQ orders is $175.00 per thread.
Swivels are machined and heat treated while sacrificial grout rod is relatively soft. In heavy percussive applications it is not uncommon for the grout rod to deform inside of the swivel causing the rod to stick inside the Rotojec shank. Swivel savers are designed with a shortened male thread to facilitate removal from the shank and send the percussive energy through the shoulder of the swivel. If a rod becomes stuck in the swivel saver – you should be able to remove the hardened saver from the hardened shaft and extract the softer grout rod from the saver "at your convenience.” It is also common to use these savers as adaptors to effectively drive several different sizes of grout rod with the same Rotojec shank.
The above image consists of a shank adaptor, coupling adaptor, a grout swivel assembly, another coupling adaptor, a sacrificial grout rod, and sacrificial grout bit. A grout swivel assembly is made up of a combination of a flushing collar, junction bar, and two seals.
Stud rods are short sections of male to male rods that are used to extend the reach slightly and to adapt to different thread than what you may currently have available. These are machined and heat treated for strength and longevity.
Coupling adaptors are female to female and used to adapt to a different thread than what you may currently be running. They are machined and heat treated blast-hole quality couplings. We keep a large variety in stock, though minimum order quantities may apply.
Also threading Williams, Titan, and more. Minimum Order Quantity may Apply. 10% discount on orders of 100 or more for Carbide Cross and/or Button Bits.
Also threading Williams, Titan, and more. Minimum Order Quantity may Apply.
Also threading Williams, Titan, and more. Minimum Order Quantity may Apply.
Also threading Williams, Titan, and more. Minimum Order Quantity may Apply.
Anchor | Outside Diameter | Internal Diameter (Avg) | Effective Cross Sectional Area (Avg) | Ultimate Load Capacity | Yield Load Capacity | Weight per Foot | |
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R 32N | 1 1⁄4" | 0.73" | 0.61 in² | 63 kips | 51.5 kips | 2.3 lbs | R 32N |
R 32S | 1 1⁄4" | 0.59" | 0.76 in² | 81 kips | 63 kips | 2.85 lbs | R 32S |
R 38 | 1 1⁄2" | 0.75" | 1.11 in² | 112 kips | 90 kips | 4.0 lbs | R38 |
R 51L | 2" | 1.42" | 1.20 in² | 123.6 kips | 101.2 kips | 4.7 lbs | R 51L |
R51N | 2" | 1.30" | 1.46 in² | 180 kips | 141.6 kips | 5.6 lbs | R 51N |
T 76N | 3" | 2" | 2.84 in² | 360 kips | 270 kips | 10.0 lbs | T 76N |
T 76S | 3" | 1.77" | 3.72 in² | 428 kips | 338 kips | 13.2 lbs | T 76S |