Torque Multiplier

The Mechanical Torque Multiplier from Torc Star is a compact, robust, and highly effective tool that significantly increases the torque capacity of hand-driven torque wrenches. It uses an internal gear mechanism to multiply the input torque, allowing operators to achieve very high output torque for tightening or loosening heavyduty fasteners.

The Mechanical Torque Multiplier is a robust, precision-engineered tool designed to dramatically increase the output torque applied to bolts and nuts by multiplying the operator’s input torque via a built-in gear mechanism. This enables the safe application of very high torque levels — ideal for loosening or tightening heavy-duty fasteners that are beyond the range of standard hand tools. Because it operates mechanically, the Torque Multiplier does not require electricity or compressed air, making it especially useful in remote locations, spaces, or field conditions where power tools are impractical. Its compact, portable design and durable construction ensure reliable performance in industrial, petrochemical, oil & gas, power-plant, and heavymachinery maintenance applications.

Technical Specifications:

Maximum Output Torque : 1700-15000 Nm.

Multiplication Factor : 5-25.

Accuracy : +/-4%

Gear Ratio : 4.5:1 to 40:1

Maximum Torque Capacity : 1355- 6880 Nm

Output Drive : 1- 1 ½ inch

Applications:

  •    Suitable for field service and remote locations where power tools cannot be used.
  •    Effective in confined spaces where long-handled torque tools are impractical.
  •    Commonly used in oil and gas, petrochemical, power generation, mining, and heavy-machinery industries.
  •    Supports controlled torque application during assembly, inspection, and shutdown tasks.

Key Features:

Multiplies input torque through a precision gear system to achieve extremely high tightening or loosening forces.

Compact construction allows easy use in field maintenance, shutdowns, and confined spaces.

100% mechanical operation; ideal for remote locations and environments where pneumatic/electric tools cannot be used.

Internal gear mechanism ensures consistent torque transmission with minimal effort.

Manufactured using hardened alloy materials for long service life in harsh industrial conditions.

Provides stable counter-force to prevent tool kickback and ensure operator safety.

Requires significantly less manual force, reducing operator fatigue and improving productivity.

Maintains reliable torque output even under continuous heavy-duty use.

Product Specifications:

AM-Series:

  • Technical Data
MODEL NO. TORQUE RANGE SQUARE DRIVE OVERALL LENGTH UNIT WEIGHT
Non-Ratching Ratcheting Nm Kgf.m Lbf.in Lbf.ft inches mm Kgs.
TVT-100ATVTR-100A2.5-110.3-1.120-1002-83/8320/3600.65
TVT-300ATVTR-300A5-350.5-3.540-3004-253/8430/4650.85
TVT-600ATVTR-600A12-681-2.7100-60010-501/2485/5301.5
TVT-1200ATVTR-1200A25-1353-14200-120020-1001/2545/5952.0
TVT-2000ATVTR-2000A50-2255-23400-200040-1601/2610/6603.0
TVT-3000ATVTR-3000A70-3307-35600-300050-2501/2835/8904.0
TVT-5000ATVTR-5000A140-56014-571200-5000100-4103/41120/11957.0
TVT-7200ATVTR-7200A200-80022-80-150-6003/4"1210/12959.0
TVT8400ATVTR-8400A480-94049-954200-8400350-7001"1400/148512.0
NT-14NT-14/R135-54014-56-100-4003/41120/11956.5
NT-14SNT-14SR135-78014-78-100-5003/41110/11957.0
NT-49NT-49/R475-105049-105-350-7503/41390/148015.0
NT-55NT-55/R540-138055-140-400-100011305/134018.0
NT-105NT-105/R1000-1900105-195-750-140011305/134018.0
NT-170NT-170/R1350-2700135-275-1000-200011450/153023.5


TVR-Series:

  • Technical Data
Model No. Gear Ratio Torque Capacity Max. Height mm (C) Diameter mm (D) Weight Kgs. Input Drive (A) Output Drive (B) Suitable for Bolt size
Ft. Lbs Nm Thd. Size A/F
TVR-15 4.5 : 1 1000 1355 175 80 3.0 1/2" 1" M16 - M27 24 - 41
TVR-25 12 : 1 1350 1630 310 80 5.2 1/2" 1" M20 - M30 30 - 46
TVR-35 15 : 1 2125 2880 285 80 5.1 1/2" 1" M20 - M36 30 - 55
TVR-40 15 : 1 2360 3200 245 95 6.1 3/4" 1.1/2" M20 - M39 30 - 60
TVR-65 21 : 1 3660 4960 240 114 8.4 3/4" 1.1/2" M27 - M42 41 - 65
TVR-90 40 : 1 5075 6880 300 172 21.5 3/4" 1.1/2" M33 - M48 50 - 75