Welded HDD Rods

North Star’s engineers produced the first HDD pipe in China in 2004: a simple, friction-welded model using a plain-end tube.

Through nearly 15 years of field testing and development, North Star’s team has refined our welding processes to the point that today’s friction-welded models are the most popular choice of our partners and customers in China and throughout Asia – appreciated not only for their durability and reliability, but also their competitive pricing.

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HDD PIPES & TOOLS BROCHURE

Welded Drill Pipe Specification Charts

Compatible with Vermeer HDD Rigs

Compatible with Ditch Witch HDD Rigs

General Pipe Specifications

Compatible with Vermeer HDD Rigs

Rig Compatibility*	Thread	Length		Pipe OD		Joint OD		Pin Length (mm)	Max. Torque (Nm)	Bend Radius		Max. Bend Angle	Max. Slope (%)	Weight (kg)	Part Number
		mm	ft	mm	inch	mm	inch			m	ft
D7x11, D10x15	#200	1829	6	42	1.66	48	1.88	50.7	2040	30.2	99.1	3.5	5.9	10	NS10311
D20x22, D23x30	#400	3048	10	52	2.06	57	2.25	63.5	3525	34.3	112.5	5.1	8.7	27	NS10312
D24x40	#600	3048	10	60	2.38	68	2.63	63.5	5695	39.6	130	4.4	7.5	32	NS10024
D40x40	#600	4572	15	60	2.38	68	2.63	63.5	5695	39.6	130	6.6	11.3	47	NS10012
D33x44, D36x50	#650	3048	10	60	2.38	70	2.75	63.5	6800	39.6	130	4.4	7.5	34	NS10023
D33x44, D36x50	#650	4572	15	60	2.38	70	2.75	63.5	6800	39.6	130	6.6	11.3	48	NS10058
D36x50, D40x55	#700	3048	10	67	2.63	79	3.1	76.2	7457	48	157.5	3.6	6.2	49	NS10059
D36x50, D40x55	#700	4572	15	67	2.63	79	3.1	76.2	7457	48	157.5	5.5	9.3	71	NS10060
D50x100, D60x90	#900	3048	10	73	2.88	83	3.25	88.9	12202	52	170.6	3.3	5.7	45	NS10006
D50x100, D60x90	#900	4572	15	73	2.88	83	3.25	88.9	12202	52	170.6	5	8.5	65	NS10061
D50x100	#900	4572	15	76	3	83	3.25	88.9	12	54.7	179.5	4.8	8.1	78	NS10007
D80x100	#800	4572	15	89	3.5	92	3.62	88.9	13560	64	210	4.1	7	99	NS10062
D130x150	#1000	6096	20	89	3.5	111	4.375	88.9	20400	64	210	5.5	9.3	140	NS10064

Compatible with Ditch Witch HDD Rigs.xlsx

Rig Compatibility*	Thread	Length		Pipe OD		Joint OD		Pin Length (mm)	Max. Torque (Nm)	Bend Radius		Max. Bend Angle	Max. Slope (%)	Weight (kg)	Part Number
		mm	ft	mm	inch	mm	inch			m	ft
JT2720	1.94	3000	9.84	60	2.38	70	2.75	75	4340	39.6	130	4.3	7.4	34	NS10002
JT20	1.94	3000	9.84	52	2.06	67	2.63	75	2980	34.3	112.5	5	8.5	28	NS10268
JT2720M1, JT3020M1	2.11	3000	9.84	60	2.38	76.2	3	84.7	5420	39.6	130	4.3	7.4	36	NS10001
JT25/30	2.11	3000	9.84	60	2.38	70	2.75	84.7	5420	39.6	130	4.3	7.4	34	NS10269
JT4020	2.4	4500	14.76	73	2.88	82	3.23	99.5	6800	52	170.6	4.9	8.3	65	NS10073
JT4020M1	2.59	4500	14.76	76	3	89	3.5	91.5	6800	54	177.2	4.7	8	76	NS10033
JT7020M1, JT8020M1, JT100M1	3.27	4500	14.76	89	3.5	102	4	132.5	13560	64	210	4	6.9	98	NS10075

Welded General Pipe Specifications

Pipe OD		Thread	Length		Joint OD		Max. Torque (Nm)	Recommended  Make-up Torque (Nm)	Bend Radius		Max. Bend Angle	Max. Slope (%)	Weight (kg)
mm	in		mm	ft	mm	in			m	ft
60	2.375	ZX60 (BDSII)	3000	9.84	68	2.677	8294	4976	39.6	130	4.3	7.4	32
73	2.875	NC23 (BDS)	3000	9.84	82	3.169	13978	8387	52	170.6	3.3	5.6	45
76	3	NC26	3000	9.84	88	3.465	16560	9936	54	177.2	3.1	5.3	53
83	3.25	ZX80	3000	9.84	92	3.622	20372	12223	59	193.6	2.9	4.9	59
83	3.25	ZX80	4500	14.76	92	3.622	20372	12223	59	193.6	4.3	7.3	81
89	3.5	NC31	3000	9.84	105	4.134	29407	17644	64	210	2.7	4.6	71
89	3.5	NC31	4500	14.76	105	4.134	29407	17644	64	210	4	6.9	95
102	4	NC38	4500	14.76	127	5	39515	23709	73	239.5	3.5	6	123
102	4	NC38	6000	19.69	127	5	39515	23709	73	239.5	4.7	8	160
114	4.5	NC38	6000	19.69	127	5	51573	30944	82	269	4.2	7.1	165
114	4.5	NC46	6000	19.69	157	6.181	68764	41259	82	269	4.2	7.1	203
127	5	NC50	6000	19.69	168.3	6.625	108759	65255	91	298.6	3.8	6.4	250
127	5	NC50	9600	31.5	168.3	6.625	108759	65255	91	298.6	6	10.2	350
140	5.5	5 1/2FH	9600	31.5	190.5	7.5	117340	70404	100	328	5.5	9.3	450
168	6.625	6 5/8FH	9600	31.5	209.6	8.25	120799	72480	121	397	4.5	7.7	460

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