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Home  »  Products  »  Bolting Tools  »  Torque Multipliers  »  Mechanical Torque Multipliers
 

Mechanical Torque Multipliers

Mechanical Torque Multipliers
 
 

Advantages Of Torque Multipliers :

  • The ratio stated is the true torque multiplication factor.
  • No correction charts are needed to determine torque output.
  • Strong, safe Anti Wind-Up Ratchet available on most models for safe and comfortable operation.
  • A wide range of alternative reaction arms are available as per customers requirement, making the Torque Multiplier adaptable to many applications.
 

Standard Series Anti Wind-Up Ratchet
 
 

Anti Wind-Up Ratchet (AWUR)

With any high ratio gearbox (25:1 or more) a certain amount of wind-up (spring) has to be taken up before any useful tightening work is applied to the nut.
 

Each time the input device is released, the wind-up will rotate it back against the direction of operation.

The Anti Wind-Up Ratchet retains all of the wind-up forces as they are created, with the following benefits:

 
  • The torque input device can not fly backwards against the direction of operation if it is suddenly released.
  • Without an Anti Wind-Up Ratchet, it will often be necessary to continue to make 360 sweeps with the torque input device otherwise the multiplier will ‘unwind’. However, obstructions will often make this impossible.
  • With an Anti Wind-Up Ratchet fitted, the multiplier becomes locked onto The nut because the reaction plate is held hard against the reaction point. This means that even used upside down, the multiplier will support it’s own weight.
 
Safety Note: Additional support is recommended as failure in the bolt, socket or multiplier will release the wind-up forces and cause the multiplier to drop.
 
 
Hand Torque Multipliers - Standard Series
Hand Torque Multipliers - Standard Series
 

Features of Hand Torque Multipliers

  • Accuracy better than ± 4%.
  • Precision tightening and loosening of all heavy duty fasteners.
  • Low energy input with high torque transfer.
  • Higher capacity multipliers are furnished with strong ratchets (Anti-wind up mechanism) allowing jobs to be performed easily, efficiently, and safely.
  • Precision Manufacturing ensures long life and premier quality.
  • A groove on output Square breaks if over loaded in excess of 20% of its capacity.
  • Highest possible load factor is guaranteed due to design and use of forged components.
 
 
 
 

Standard Series, to 47500 N.m

Model No. Capacity Ratio Input
Square
Output
Square
A
ø
B C
min
C
max
Weight*
N.m Ibf.ft inch inch mm mm mm mm kg lbs
BTM-6 3400 2500 5 3/4 1.1/2 136 149 105 260 9.20 20.24
BTM-6/25 3400 2500 25 1/2 1.1/2 136 176 105 260 12.00 26.40
BTM-7 6000 4500 5 3/4 1.1/2 168 174 115 310 18.00 39.60
BTM-7/25
Fitted with AWUR
6000 4500 25 1/2 1.1/2 168 226 115 310 22.00 48.40
BTM-9/25
Fitted with AWUR
9500 7000 25 3/4 1.1/2 195 226 150 350 33.00 72.60
BTM-9/125
Fitted with AWUR
9500 7000 125 1/2 1.1/2 195 301 150 350 35.50 78.10
BTM-11/25
Fitted with AWUR
17000 12500 25 3/4 2.1/2 220 360 164 480 52.00 114.40
BTM-11/125
Fitted with AWUR
17000 12500 125 1/2 2.1/2 220 404 164 480 57.00 125.40
BTM-13/125
Fitted with AWUR
47500 35000 125 3/4 2.1/2 315 550 164 480 80.00 176.00
* Including reaction plate.
 
 
91-22-4345 3100 / 91-22-2300 0015
sales@powermaster.in
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