Jinquan's R22 R32 T38 T45 T51 threaded coupling sleeves ensure the ends touch for efficient energy transmission, suitable for model powerful top hammers and drifter from Atlas Copco, Furukawa and Boart Longyear etc.
Coupling sleeves, other name is coupling, when using rock drills with male shank adapters and a conventional drifter rod, a coupling is required to join the adapter to the rod, ensuring the ends touch for efficient energy transmission. Coupling are also used to connect several rods to each other in the same way. Couplings have a middle stop to prevent over-threading on to the drill rod. We can manufactures semi-bridge, full bridge coupling sleeves for the percussive tools.
(1) Name: Thread drill steel rod coupling sleeves.
(2) Length: 225mm-250mm.
(3) Type: R22, R25, R28, R32, R38, T38, T45, T51.
(4) Type: Full-bridge, semi-bridge, same diameter etc.
(5) Productivity: 50000pcs/ month.
(6) Package: Ply-wooden cases or in cartons.