HTN Imperial Range

The Hi-Force HTN range of imperial top collar hydraulic nuts is specifically designed and manufactured for applications where regular, periodic opening of the joint, for inspection and maintenance purposes is required. Unlike conventional hydraulic bolt tensioners, Hi-Force HTN series hydraulic nuts are designed to permanently replace standard hexagon nuts, on one side of the bolted joint. Initially the bolt tension or elongation is applied hydraulically and once achieved, it is permanently retained via the integral mechanical load retaining collar.

Standard range models are available for imperial bolt sizes from 1” to 4”, with other sizes available to special order. All models are 1500 bar maximum working pressure and supplied with quick connect hydraulic couplings, compatible for use with Hi-Force air or manually operated hydraulic bolt tensioner pumps and hoses.

• Capacities from 198 to 1911 kN
• Bolt sizes from 1″ to 4″ diameter
• Working pressure 1500 bar

• Single acting design with integral load holding lock nut
• High grade alloy steel construction
• Nitrocarburised piston
• Visible maximum piston stroke indicator
• Dual quick connect couplings for easy connection
• Customised and special design tensioners are available on request

• Specifications
• Dimensions

Model Number	Bolt Size	Capacity		Effective area cm2	Stroke mm	Weight kg	Tommy Bar
		kN	tonnes
HTN1-100	1″ – 8 UN	198	20.2	13.2	5	1.9	TTB06
HTN2-112	1 1/8″ – 8 UN	216	22.1	14.4	5	2.0	TTB06
HTN3-125	1 1/4″ – 8 UN	253	25.8	16.9	5	2.4	TTB06
HTN4-137	1 3/8″ – 8 UN	304	31.2	20.4	5	2.7	TTB06
HTN5-150	1 1/2″ – 8 UN	344	35.1	22.9	6	2.9	TTB06
HTN6-162	1 5/8″ – 8 UN	398	40.5	26.5	6	3.5	TTB06
HTN7-175	1 3/4″ – 8 UN	475	48.4	31.7	6	4.0	TTB06
HTN8-187	1 7/8″ – 8 UN	501	51.1	33.4	6	4.2	TTB06
HTN9-200	2″ – 8 UN	5634	57.5	37.6	6	4.9	TTB06
HTN10-225	2 1/4″ – 8 UN	746	76.1	49.8	8	6.4	TTB06
HTN11-250	2 1/2″ – 8 UN	905	92.3	60.3	8	8.0	TTB06
HTN12-275	2 3/4″ – 8 UN	1000	101.9	66.7	8	8.8	TTB08
HTN13-300	3″ – 8 UN	1203	122.7	80.2	8	10.6	TTB08
HTN14-325	3 1/4″ – 8 UN	1414	144.1	94.3	10	12.9	TTB08
HTN15-350	3 1/2″ – 8 UN	1605	163.6	107	10	16.2	TTB10
HTN16-375	3 3/4″ – 8 UN	1705	173.8	113.6	10	18.3	TTB10
HTN17-400	4″ – 8 UN	1911	194.9	127.4	10	21.9	TTB10

Note: Tommy bars are not included. Hi-Force recommends one tommy bar for every four tensioners.

 

Model Number	Dimensions in mm
	A	B	C	D
HTN1-100	72	55	18	132
HTN2-112	75	55	18	132
HTN3-125	82	57	21	134
HTN4-137	88	57	22	135
HTN5-150	93	58	21	135
HTN6-162	100	62	23	142
HTN7-175	106	64	24	141
HTN8-187	110	64	25	142
HTN9-200	117	67	32	145
HTN10-225	128	74	28	152
HTN11-250	141	77	29	155
HTN12-275	150	78	30	156
HTN13-300	162	81	31	159
HTN14-325	174	87	35	165
HTN15-350	187	95	37	173
HTN16-375	194	102	39	179
HTN17-400	205	110	41	188