SINODRILLS DTH Drill Pipes for Sandvik / Driltech D25 / D40K

DTH drill rods transmit compressed air, so as to power the hammers to perform drilling works. Sinodrills DTH drill pipes are made of superior alloy and the both thread ends are friction welded to the seamless steel pipe.The high pressure air is delivered to DTH hammer by DTH drill pipe, simultaneously it transfers the rotation and press force to the DTH hammer.

Features

• Complete sizes for option, suitable for different types of DTH drilling system;

• The rods are made of cold-drawn steel with high manufacturing precision;

• Thread joint sturdily linked to the rod via friction welding;

• Nitriding process grants the thread joint good hardness, good wearing quality and thus long lifespan.

Applications

Mining, quarrying, water well drilling, geothermal well drilling, foundation piling, etc.

Parameters

OD (A)	Wall (B)	Length (L)	Across Flat (C)	Flat Length (E)	Across Flat (C)	Connection
mm	mm	mm	mm	mm	mm	Thread
89	8.00	6096	70	317.5	83	2 3/8'' API IF
114	8.56	6096	76	317.5	102	3 1/3'' API REG
114	8.56	6096	76	317.5	102	2 7/8'' API REG
114	8.56	7620	76	317.5	102	3 1/2'' API REG
114	8.56	620	76	317.5	102	2 7/8'' API IF
114	8.56	9144	76	317.5	102	3 1/2'' API REG
114	12.7	7620	76	317.5	102	3 1/2'' API REG
114	12.7	9144	76	317.5	102	3 1/2'' API REG
114	19.05	7620	76	317.5	102	3 1/2'' API REG
127	12.7	7620	76	317.5	102	3 12/'' API REG
127	12.7	9144	76	317.5	102	3 1/2'' API REG
127	19.05	9144	76	317.5	102	3 1/2'' API REG
127	19.05	7625	76	317.5	117	3 1/2'' Beco
140	19.05	7625	76	317.5	117	3 1/2'' Beco
140	19.05	9144	76	317.5	117	3 1/2'' Beco

Please contact our sales team for more specifications.