HDD Swivel

HDD Swivel

 

The HDD swivel applies to trenchless pipeline installation. Installed pipelines include cables and sewage pipes. When used in trenchless pipeline installation, the hdd swivel connects pipes during pullback. During installation, the power source connects to the pipe through the power swivel. During pipe pullback, the equipment drags and releases the pipe. It does not damage the pipe.

Working Principle

 

Horizontal Directional Drilling (HDD) pipe laying method uses downhole drilling tools, pipeline detection, and other technologies to lay, repair, or replace underground pipelines without excavating trenches on the surface. Utilizing a drilling rig placed on the surface, it forms holes through water jetting or extrusion. By receiving signals emitted from the drill bit within the surface receiver, it achieves control of the drilling trajectory. The construction process involves three stages: drilling the pilot hole, hole enlarging, and pipe pullback.

Single-ear power swivels are suitable for rotary connections with larger pulling tonnages. They use shackle connections, which provide an automatic adjustment space at the connection point, acting as a buffer and effectively protecting accessory damage.

 

Double-Pull Ear and Single-Pull Ear:

 

Power swivel types include single-pull ear power swivels and double-pull ear power swivels.

The housing is manufactured using metal forging and pressing technology for enhanced durability.

Equipped with multi-layer imported rotating bearings and matching components, capable of withstanding high-tonnage pulling forces.

Incorporates Caterpillar mechanical seal design to ensure leak-free operation under heavy loads.

Sealed lubricating grease is injected to guarantee smooth rotation during high-tonnage pulling operations.

Optimized clearance fit design between the lug grooves and connecting accessories ensures secure installation and rotational protection.

Single-Pull Ear

Model	D(mm)	L(mm)	f(mm)	t(mm)	b(mm)	S(mm)	Φ(mm)	Load	API	Kg
KTW60/D	190	740	80	70	200	65	73	60T	NC31-38	95
KTW70/D	190	750	85	70	200	70	73	70T	NC31-38	120
KTW80/D	210	850	85	75	200	76	73	80T	NC31-38	145
KTW90/D	210	880	90	75	220	80	86	90T	NC31-38	156
KTW100/D	298	860	125	80	290	85	97	100T	NC38-50	280
KTW120/D	298	950	130	85	310	90	97	120T	NC38-50	350
KTW150/D	330	1000	135	95	330	95	115	150T	NC38-50	365
KTW200/D	420	1500	180	110	395	110	136	200T	NC50-5 1/2	790
KTW300/D	460	1600	200	120	450	125	165	300T	5 1/2-6 5/8FH	1200
KTW350/D	460	1650	200	120	470	135	165	350T	5 1/2-6 5/8FH	1360
KTW400/D	600	2150	220	130	490	160	200	400T	5 1/2-6 5/8FH	1880
KTW500/D	625	2200	240	140	490	165	220	500T	5 1/2-6 5/8FH	1980

 

Double-Pull Ear

Model	D(mm)	L(mm)	H(mm)	f(mm)	k(mm)	t(mm)	Φ(mm)	Load	Kg
KTW10/S	110	240	85	46	32	100	31	10T	15
KTW20/S	125	390	85	46	32	100	32	20T	22
KTW30/S	130	450	105	50	42	110	32-42	30T	35
KTW40/S	155	520	115	53	47	115	42	40T	54
KTW50/S	165	590	130	55	52	120	52	50T	72
KTW60/S	190	690	156	75	62	150	62	60T	98
KTW70/S	190	740	170	86	62	150	62	70T	120
KTW80/S	210	790	190	90	66	152	66	80T	140

Maintenance:

 

• Clean regularly: Remove dirt and debris after each use.
• Replace worn parts: Replace worn seals and bearings promptly.   
• Store properly: Store the swivel in a clean and dry environment.