Products

Lock joint/coupling

The lock joint is made of 35CrMo or 42Cr material, heat treatment after rough machining, surface nitriding treatment after finishing...

Classification:

Product Introduction

Joint outer diameter	Joint inner diameter	Joint thread		Matching drill rods	Joint material
mm	mm	pitch	taper	mm
57	22	6	1:5	42	40Cr
65	28	6	1:5	50	42CrMo
68	28	6	1:5	50	42CrMo
75	38	6	1:5	60	42CrMo
78	38	6	1:5	60	42CrMo
86	44.5	4	1:6	60	42CrMo
105	50.8	4	1:6	73	42CrMo
121	68	4	1:6	89	35CrMo
127	65	4	1:6	89	42CrMo
140	57	4	1:6	102	42CrMo
152	83	4	1:6	114	42CrMo
168	95	4	1:6	127	42CrMo
178	95	4	1:6	140	42CrMo
We can produce lock joints of different materials, lengths, diameters, and wall thicknesses, as well as process them according to customer requirements or provided drawing samples.