Torque Wrench
Torque wrenches are precision tools used to apply a specific amount of torque to fasteners such as RF connectors, nuts, and bolts. These tools ensure that connections are tightened accurately according to recommended torque values, preventing over-tightening or under-tightening.
In telecom and RF systems, torque wrenches play a critical role in maintaining signal integrity, minimizing loss, and ensuring long-term reliability of coaxial cable and connector assemblies.
At SRFS Teleinfra, we offer high-quality torque wrenches designed for precise tightening of RF connectors such as SMA, N-type, TNC, and DIN connectors used in telecom, testing, and wireless communication systems.
What is a Torque Wrench?
A torque wrench is a calibrated tool used to apply a controlled amount of torque to a fastener, ensuring proper tightening without damaging components.
In RF applications, proper torque is essential because incorrect tightening can lead to signal loss, impedance mismatch, and connector damage.
Types of Torque Wrenches
Click Type Torque Wrench
Provides an audible “click” when preset torque is reached.
Preset Torque Wrench
Pre-calibrated for specific torque values (ideal for RF connectors).
Adjustable Torque Wrench
Allows users to set different torque values for various applications.
Digital Torque Wrench
Displays torque values digitally for high precision applications.
Torque Wrench Product Specifications
| Connector Type | Torque Value | Wrench Type | Size / Compatibility |
|---|---|---|---|
| 1.0mm Connector | 4 in-lbs | Breakover | Precision RF |
| 1.0mm Connector | 4 in-lbs | Preset Click | Precision RF |
| SMA (Brass) | 4 in-lbs | Preset Click | SMA Connector |
| SMA / 1.85mm / 2.4mm / 2.92mm / 3.5mm | 8 in-lbs | Breakover | Multi RF |
| SMA / 1.85mm / 2.4mm / 2.92mm / 3.5mm | 8 in-lbs | Preset Click | Multi RF |
| NEX10 | Preset | Preset Click | Low PIM |
| TNC (14mm Hex) | 12 in-lbs | Preset Click | RF Connector |
| 2.2-5 Connector | Preset | Preset Click | Telecom RF |
| Type N (19mm) | 12 in-lbs | Preset Click | RF Connector |
| Type N (20mm) | 12 in-lbs | Preset Click | RF Connector |
| Type N (21mm) | 12 in-lbs | Preset Click | RF Connector |
| 4.3-10 Connector | 44.25 in-lbs | Preset Click | Low PIM |
| DIN 7/16 | 221 in-lbs | Preset Click | High Power RF |
| 4.1-9.5 Connector | 88.5 in-lbs | Preset Click | Telecom Connector |
Technical Specifications
Our torque wrenches are designed to meet telecom and RF industry standards and deliver precise performance:
Torque Range: Available in multiple torque ranges depending on connector type.
Accuracy: High precision calibration for consistent torque application.
Connector Compatibility: Suitable for SMA, N-Type, TNC, DIN and RF connectors.
Material: High-strength steel construction for durability and long life.
Operation Type: Click-type, preset and adjustable models available.
Applications of Torque Wrench
Torque wrenches are widely used in telecom and RF industries:
RF cable and connector installation
Telecom towers and BTS setup
4G / 5G network infrastructure
Antenna system installation
Testing and measurement equipment
Aerospace and defense communication systems
Key Performance Factors
Ensures proper connector tightening
Prevents signal loss and reflection
Improves RF system performance
Extends connector and cable life
Reduces installation errors
Proper torque application is critical because incorrect tightening can degrade RF performance and cause signal reflection issues.
Working Principle
Torque wrenches operate based on controlled force application:
A preset torque value is set on the tool
The wrench applies force to the connector or fastener
When the desired torque is reached, the tool indicates (click/limit)
Prevents further tightening beyond the specified value
This ensures consistent and accurate fastening across all RF connections.
Why Choose us
Precision Torque Control
Our torque wrenches ensure accurate and repeatable tightening for RF connectors.
Optimized for RF Applications
Designed specifically for telecom, RF and microwave systems.
Durable & Reliable Build
Manufactured with high-quality materials for long service life.
Wide Compatibility
Supports multiple RF connector types used in telecom infrastructure.
Frequently Asked Questions
It is used to apply a specific torque to fasteners for accurate tightening.
Proper torque ensures signal integrity and prevents loss or reflection.
Over-tightening can damage connectors and threads.
Loose connections can cause signal leakage and instability.
It produces a click sound when preset torque is reached.
It refers to how precisely the wrench applies the set torque value.
Yes, they are essential tools in telecom installations.
Yes, periodic calibration ensures accurate performance.
Depends on connector type, usually measured in Nm or in-lbs.