Norbar HT 12/87.5 AWUR Manual Torque Multipliers 3400-34000NM, Output Square: 2 1/2", Input Square: 3/4"
The Norbar HandTorque HT-12/87.5 AWUR is a manual torque multiplier delivering up to 34,000 N·m, with a 3/4" input drive, a 2-1/2" output drive and torque multiplication accuracy better than ±4%. Its 87.5:1 multiplication ratio supports demanding heavy-duty bolting applications, while the anti-wind-up ratchet (AWUR) helps control stored energy in the gear train during tightening. No external power supply is required. Supplied by General Tech Services LLC, UAE. For pricing and availability, call +971 6 5436933.
Part No. 18085
The Norbar HT-12/87.5 AWUR covers a stated working torque range of 3,400–34,000 N·m, making it suitable for high-torque bolting and maintenance tasks involving large industrial equipment. Its multi-stage epicyclic gearing multiplies input torque from a compatible torque wrench to deliver much higher output torque.
With an 87.5:1 multiplication ratio, this model is designed for applications requiring substantial output torque from a suitable 3/4" square-drive torque wrench. The actual mean torque ratio should be confirmed from the manufacturer's documentation before calculating input settings for critical bolted joints.
The HT-12/87.5 AWUR accepts a 3/4" square-drive torque wrench and drives a compatible 2-1/2" square-drive socket. Its manual operation makes it suitable for industrial workshops, offshore facilities, mining operations and remote maintenance locations where compressed air or electrical power may not be practical.
The anti-wind-up ratchet helps control energy stored in the gear train during tightening, reducing the risk of sudden input-wrench movement when the load is released. Follow the manufacturer's operating instructions when positioning, loading and repositioning the tool.
For a lower output capacity, compare this model with the Norbar HT-11/125 AWUR, rated for up to 20,000 N·m, and select the multiplier based on your required torque and available input wrench.
Key Benefits
-
High torque output: Delivers up to 34,000 N·m for demanding industrial bolting applications.
-
Manual operation: Requires no electricity, battery or compressed air.
-
Torque multiplication accuracy: Better than ±4%, according to the stated product specifications.
-
87.5:1 multiplication ratio: Converts input torque into substantially higher output torque.
-
Anti-wind-up ratchet: Helps control gear-train wind-up and reduce the risk of kickback.
-
Heavy-duty drive configuration: Features a 3/4" square input and 2-1/2" square output.
-
Flexible application: Suitable for industrial maintenance and remote work locations.
For pricing and availability, contact General Tech Services LLC, UAE, at +971 6 5436933.
Who This Product Is Best For
-
Maintenance teams handling fasteners requiring up to 34,000 N·m.
-
Mining, oil and gas, offshore and petrochemical facilities.
-
Industrial workshops maintaining large machinery and heavy equipment.
-
Technicians who need high output torque from a compatible 3/4" drive torque wrench.
-
Service teams working where powered tools are impractical or restricted.
How to Use It
-
Confirm the required output torque and consult the manufacturer's documentation for the exact mean torque ratio.
-
Calculate the required input torque using the confirmed ratio and set a compatible 3/4" square-drive torque wrench.
-
Fit the torque wrench to the multiplier's input and install a compatible 2-1/2" square-drive socket on the output.
-
Position the reaction arm against a suitable, solid reaction point according to the manufacturer's instructions.
-
Apply force smoothly and confirm that the tightening cycle has completed as intended.
-
Release and reposition the tool following the manufacturer's operating procedure.
Frequently Asked Questions
What is the maximum output torque of the Norbar HT-12/87.5 AWUR?
It delivers up to 34,000 N·m, with a stated working range of 3,400–34,000 N·m.
What is the multiplication ratio?
The stated multiplication ratio is 87.5:1. Confirm the manufacturer's exact mean torque ratio before calculating input torque for critical joints.
How accurate is the HT-12/87.5 AWUR?
The stated torque multiplication accuracy is better than ±4%. Follow the manufacturer's instructions for torque calculations and tightening procedures.
What does AWUR mean?
AWUR stands for anti-wind-up ratchet. It helps control stored energy in the gear train when the input wrench is released.
What are the input and output drive sizes?
The listed configuration has a 3/4" square input and a 2-1/2" square output.
Does this torque multiplier require electricity or compressed air?
No. It is manually operated and requires no external power supply.
How does it compare with the HT-11/125 AWUR?
The HT-12/87.5 AWUR delivers up to 34,000 N·m with an 87.5:1 ratio and a 3/4" input. The HT-11/125 AWUR delivers up to 20,000 N·m with a nominal 125:1 ratio and a 1/2" input. Choose according to the required output torque, available wrench and operating needs.
How can I get a price in the UAE?
Contact General Tech Services LLC for current pricing and availability by calling +971 6 5436933.
Request a quote for the Norbar HandTorque HT-12/87.5 AWUR, Part No. 18085, from General Tech Services LLC, UAE. Call +971 6 5436933.
