PRODUCTS
9291-10 1-½” Torque Multiplier Tool Set |
9291 : High-Capacity Geared Torque Multiplier Tool Set (Up to 10,000 N.m)
- Multiplicateur de dynamometrique/ Mnożnik momentu obrotowego
- Drehmomentmultiplikator/ Multiplicando dinamométrica
- مضاعف عزم الدوران/ ตัวคูณแรงบิด/ 倍力器
9291 Series is a heavy-duty Geared Torque Multiplier Tool Set engineered for the most demanding industrial, construction, and maritime applications. Designed to multiply input torque by ratios up to 1:25, this tool enables technicians to accurately tighten or loosen high-tensile fasteners up to 10,000 N.m using a standard torque wrench or handle. Forged from ultra-grade Chrome Molybdenum (Cr-Mo) steel and housed in a precision-machined casing, the 9291 series ensures maximum safety and durability during high-stress operations. It is an essential tool for bridge construction, shipyards, and heavy machinery maintenance.
Feature
Torque Multiplier
Make work easier by using leverage which multiplies the Torque.
There are three ways simple machines make work easier:
- by increasing the distance through which force is applied,
- by changing the direction of applied force,
- by multiplying force of speed of the energy applied.
| ITEM NO. | F (HORSE) | M (SQUARE) | GEAR RATIO | TORQUE RATIO |
|---|---|---|---|---|
| 9290-10 | ½" DR. | 1-½" | 1 : 10 | 1 : 10 |
| 9291-10 | ¾" DR. | 1-½" | 1 : 30 |
| W mm | H mm | L mm | INPUT TORQUE N · m | OUTPUT TORQUE N · m |  g |
|---|---|---|---|---|---|
| 110 | 253.6 | 265 | MAX : 400 | MAX : 4000 | 8900  |
| 186 | 176 | 490 | MAX : 335 | MAX : 10000 | 30400 |
Feature
Extreme 1:30 Multi-Stage Planetary Gearbox Performance
The internal mechanical powertrain of this heavy-duty system delivers smooth, continuous rotational leverage:
- Advanced Multi-Stage Epicyclic Gear Assembly: The internal gear trains are hot drop-forged from premium structural Chrome-Molybdenum (Cr-Mo) steel. This heavy-duty metallurgy undergoes computer-controlled vacuum tempering to withstand peak torsional stress without gear teeth chipping or fracturing.
- Efficient 1:30 Gear Ratio Multiplication: Features a robust 1:30 mechanical ratio. This enables a single operator using a standard 3/4″ drive torque wrench (calibrated up to 335 N·m) to safely apply a massive 10,000 N·m of localized torque, allowing for precise, strain-free installations of high-yield-strength industrial structural bolts.
- 1-1/2″ Main Output with Integrated 1″ Adaptability: Operating at 10,000 N·m generates massive shear forces that would break standard 3/4″ or 1″ drives. The 9291 features a solid 1-1/2″ male square output to absorb this load safely. For immediate workplace compatibility, the set includes an impact-grade reduction adapter converting the 1-1/2″ female (凹 concave) drive to a 1″ male (凸 convex) output, allowing seamless connection to standard 1″ industrial impact sockets.
Heavy-Duty Dual-Arm Stabilization & Professional Tool Control
- Interchangeable Straight and L-Shape Reaction Bars: Includes a long straight reaction bar to leverage off distant parallel structures, and an L-shape angled reaction foot to anchor directly onto neighboring chassis bolts or heavy dual-wheel assemblies. Both arms slide onto the high-tolerance spline of the multiplier housing and lock securely with a heavy-duty retention screw.
- Thread-Preserving Manual Torque Delivery: Delivers continuous, steady rotational torque to release seized, rusted, or high-vibration fasteners without shock damage. Unlike volatile pneumatic impact guns that can cause structural micro-cracking, this manual planetary method protects thread integrity and ensures precise torque tracking.
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