X4 Torque Multipliers

Tool Division
A Division of Gear/Tronics Industries Incorporated
To Order Call 781-933-1404

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X-4
TORQUE MULTIPLIERS
(GEARED HEAD WRENCHES)

The X-4 Torque Multiplier is a Geared Head Wrench incomparable to any other tool. The multiplication is achieved through a planetary gear train at a ratio depending on the model. The precision gear train is totally enclosed.

An X-4 is a silent partner to all maintenance men, providing ample power to loosen the toughest threaded fasteners. As a torque multiplier it generates torque's from a few hundred pound-feet to thousands of pound-feet with precision and ease. Relatively small in size, the X-4 Torque Multipliers may be used with practically all accessory tooling yet provide ample wrench power in limited work areas. In many cases it eliminates dismantling of nearby equipment.

In addition to many applications where an X-4's use is mandatory, general use will not only upgrade the quality of work but also vastly improve the overall efficiency of the operators. Safety groups will find many reasons for specifying the use of X-4 Torque Multipliers and rather than interfere with production or efficiency, both factors will show improvement.

In use, standard drive sockets of appropriate size are placed on the male drive square. A suitable drive tool is inserted in the female input socket. This may be an ordinary ratchet drive, a torque measuring device or under controlled conditions, a power drive. This assembly is now placed on the part to be turned with the reaction bar restrained against some substantial part of the equipment being serviced. At this point, any force applied to the input drive is multiplied at the output end of the X-4. For higher ratios of multiplication, two or more X-4's may be directly intercoupled. Impact type driving tools should not be used.

Thousands of X-4 Torque multipliers are in use throughout the world as maintenance, production, inspection or service equipment wherever high torque applications are found.

X-4 MULTIPLIERS - DATA AND SPECIFICATIONS

Model	Output Capacity	Input Drive	Output Drive	Ratio*	Approx. Wgt.
LW-750	1000 lb-ft (1356 N-m, 140 kP-m)	1/2"	3/4"	4 to 1	7 lbs (3.2 kg)
TD-1000	2000 lb-ft (2712 N-m, 280 kP-m)	3/4"	1"	4 to 1	14 lbs (6.4 kg)
TD-1000R (ANTI-BACKLASH)	2000 lb-ft (2712 N-m, 280 kP-m)	3/4"	1"	4 to 1	15 lbs (6.9 kg)
TD-1200 (TWO-STAGE)	3000 lb-ft (4067 N-m, 420 kP-m)	3/4"	1 1/2"	14.3 to 1	30 lbs (14 kg)
TD-1500	4000 lb-ft (5423 N-m, 560 kP-m)	1"	1 1/2"	4.33 to 1	30 lbs (14 kg)
TD-2000	8000 lb-ft (10847 N-m, 1120 kP-m)	1"	1 1/2"	4.6 to 1	47 lbs (21 kg)
TD-2500	12000 lb-ft (16270 N-m, 1680 kP-m)	1"	2 1/2"	6 to 1	73 lbs (33 kg)

*Due to frictional losses in the tool, actual output will vary between 10 and 20% in each stage of multiplication.

Model	A	B	C	D	E	F	O/A/L
LW-750	3.50" 89 mm	6.60" 168 mm	.50" 13 mm	.75" 19 mm	3.35" 85 mm	17.8" 452 mm	22.5" 572 mm
TD-1000	3.75" 95 mm	6.60" 168 mm	.75" 19 mm	1.00" 25 mm	4.37" 111 mm	20.4" 518 mm	25.7" 653 mm
TD-1000R (ANTI-BACKLASH)	3.75" 95 mm	6.60" 168 mm	1.50" 38 mm	1.00" 25 mm	5.00" 127 mm	20.4" 518 mm	25.7" 653 mm
TD-1200 (TWO-STAGE)	5.20" 132 mm	9.70" 246 mm	2.00" 51 mm	1.50" 38 mm	7.00" 178 mm	23.9" 607 mm	30" 762 mm
TD-1500	5.20" 132 mm	9.70" 246 mm	1.00" 25 mm	1.50" 38 mm	6.20" 157 mm	23.9" 607 mm	30" 762 mm
TD-2000	6.50" 165 mm	12.10" 307 mm	.75" 19 mm	1.87" 48 mm	7.67" 195 mm	23.8" 604 mm	31" 787 mm
TD-2500	8.50" 216 mm	11.50" 292 mm	1.00" 25 mm	2.25" 57 mm	7.25" 184 mm	28.7" 729 mm	28.7" 729 mm

X-4 TORQUE MULTIPLIER PARTS DIAGRAM
(FOR ALL MODELS EXCEPT TD-1200)

X-4 TORQUE MULTIPLIER PARTS LISTS
(FOR ALL MODELS EXCEPT TD-1200)

Drawing Item	Part Description	Part No. LW750	Part No. TD1000	Part No. TD1000R	Part No. TD1500	Part No. TD2000	Part No. TD2500
1	Input Pinion	-02	-02	-02	-02	-02	-02
2	Input "O" Ring		-10	-10	-10	-10	-10
3	Input Carrier	-04	-04	-04	-04	-04	-04
4	Dowel Pins	(4) -08	(4) -08	(4) -08	(4) -08	(4) -08	(4) -08
5	Housing "O" Ring		(2) -09	(2) -09	(2) -09	(2) -09	(2) -09
7	Input Retainer	(1) -07	(2) -07	(2) -07	(2) -07	(4) -07	(2) -07
8	Planet Pinion	(4) -03	(4) -03	(4) -03	(4) -03	(4) -03	(4) -03
9	Spacer*		(2) -26	(2) -26
10	Housing	-01	-01	-01	-01	-01	-01
11	Output Stub	-05	-05	-05	-05	-05	-05
12	Special Screw	(4) -06	(4) -06	(4) -06	(4) -06	(4) -06	(4) -06
20	Pawl			-20
21	Spring, Pawl*			-21
22	Sleeve, Pawl			-22
23	Knob, Ratchet			-23
24	Screw, Retainer			-24
25	Assy, Ratchet			-25
26	Reaction Bar*	-16	-16	-16	-16	-16	-16
27	Lube Pack*	-17	-17	-17	-17	-17	-17
* Not Shown in Parts Diagram

X-4 TORQUE MULTIPLIER PARTS DIAGRAM
(MODEL TD-1200)

X-4 TORQUE MULTIPLIER PARTS LIST
(MODEL TD-1200)

Drawing Item	Part Description	Part No.
1	Input Pinion	-02
2	Input "O" Ring	-10
3	Input Carrier	-04
4	Dowel Pins	(4) -08
5	Housing "O" Ring	(2) -09
6	Carrier "O" Ring	-27
7	Input Retainer	(2) -07
8	Planet Pinion	(4) -03
9	Spacer	(2) -26
10	Housing	-01
11	Output Stub	-05
12	Special Screw	(4) -06
13	Carrier, 2nd	-28
14	Sun Pinion, 2nd	-29
15	Planet Pinion, 2nd	(4) -30
16	Housing, 2nd	-31
17	Dowel, 2nd	(4) -32
18	Screw, Coupling	(4) -33
19	Screw	(4) -34
26	Reaction Bar*	-16
27	Lube Pack*	-17
* Not Shown in Parts Diagram

MATHEMATICS OF THE X-4 TORQUE MULTIPLIER

In most wrench applications the force relationship may be expressed by the following formula:

F x D = T
FORCE x DISTANCE = TORQUE

Where:

F equals turning force in pounds applied by the Operator.

D equals lever arm or wrench handle in inches or feet.

T equals total force applied to wrench head in pound-feet, kilopoint-meters or Newton-meters

When the X-4 Torque Multiplier is used, its mechanical advantage applies a factor to the equation as follows:

F x D x

MULTIPLIER
FACTOR

= T x

MULTIPLIER*
FACTOR

It can thus be seen that the same applied force F results in multiple times the total turning force when the X-4 tool is used.

*In actual operation this factor is reduced between 10 and 20% due to normal losses in the tool head.