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Help CenterSelf-Locking Torque Wrench for Automotive Assembly, 20-100 Nm, Ensures Consistent Torque, 1 Year Warranty
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Welcome to Cangzhou Dean Safety&Special Tools Co., Ltd. – a trusted manufacturer since 2001 with over two decades of expertise in producing high-precision tools for professionals worldwide. Our Self-Locking Torque Wrench for Automotive Assembly (20-100 Nm) is engineered to deliver consistent torque performance, ensuring every bolt in your assembly line meets exact specifications. Designed with advanced self-locking technology, this wrench eliminates the risk of over-torquing and enhances operator safety, making it an indispensable asset for automotive workshops and production lines. With an annual export value exceeding US$100 million and a global customer base spanning North America, Europe, Asia, and beyond, we bring reliability and quality to your hands.
Product Overview
This self-locking torque wrench is specifically designed for automotive assembly applications where precision and repeatability are critical. The torque range of 20 to 100 Nm covers a wide spectrum of fastening tasks – from engine components to chassis parts. Its self-locking mechanism automatically disengages the drive when the preset torque is reached, providing an audible and tactile click, ensuring consistent torque application every time. The tool is built with high-grade chrome vanadium steel for durability and long service life, even under demanding industrial conditions.
Key Features & Technical Specifications
| Specification | Details |
|---|---|
| Torque Range | 20 – 100 Nm (adjustable with calibrated scale) |
| Accuracy | ±3% of reading (clockwise direction), conforming to international standards |
| Drive Size | 1/2 inch square drive – compatible with standard sockets |
| Locking Mechanism | Self-locking ratchet head: automatically locks at set torque, prevents over-tightening |
| Material | High-strength chrome vanadium steel (heat-treated for durability) |
| Handle Design | Ergonomic non-slip grip, reduces hand fatigue during repeated use |
| Calibration | Factory calibrated; recalibration service available upon request |
| Warranty | 1 year against manufacturing defects |
Detailed Benefits for Automotive Assembly
- Consistent Torque Output: The self-locking feature ensures that every fastener receives exactly the same torque, reducing variability and preventing costly rework or joint failures. This is especially important in safety-critical areas like brakes, suspension, and steering.
- Operator Safety: Once the preset torque is reached, the ratchet head automatically disengages, eliminating the risk of over-torquing that can damage components or cause injury. The tactile and audible click provides clear confirmation.
- Time Efficiency: No need to constantly check torque values – simply dial in the desired setting and work confidently. The quick-release mechanism allows for easy socket changes, speeding up assembly line operations.
- Durability: Made from chrome vanadium steel, the wrench withstands heavy daily use in industrial environments. The smooth ratchet mechanism has been tested for over 50,000 cycles without loss of accuracy.
- Versatility: The 20-100 Nm range covers most automotive assembly tasks, from small brackets to larger engine bolts. The 1/2-inch drive is the industry standard, compatible with a wide variety of impact sockets and extensions.
- Easy to Read Scale: The dual-scale (Nm and ft-lb) is laser-engraved and highly visible, allowing quick adjustment even in low-light conditions. A locking collar prevents accidental setting changes during use.
Why Choose Cangzhou Dean Safety&Special Tools Co., Ltd.?
As a manufacturer established in 2001 with an annual export value exceeding US$100 million, we have supplied millions of torque tools to professional users across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. Our factory in Cangzhou, Hebei, employs advanced CNC machining and strict quality control processes to ensure every wrench meets rigorous performance standards. We offer flexible shipping options from Tianjin, Shanghai, or Ningbo ports, and our dedicated customer service team is ready to support you with after-sales service, calibration certificates, and bulk order discounts. With over 20 years of experience, you can trust that this self-locking torque wrench delivers the consistency and reliability your automotive assembly line demands.
Frequently Asked Questions (FAQ)
Q1: What is the accuracy of this torque wrench?
A: The accuracy is ±3% of the reading in the clockwise direction. This meets typical industrial requirements for automotive assembly. For critical applications, we recommend periodic calibration (service available upon request).
Q2: Can this wrench be used for both clockwise and counterclockwise fastening?
A: It is calibrated for clockwise (right-hand) tightening. For counterclockwise applications, the accuracy may not be guaranteed. We recommend using a dedicated left-hand torque wrench if needed.
Q3: How do I set the torque value?
A: Unlock the locking collar at the base of the handle, rotate the knurled grip to align the desired value with the scale, then relock the collar. The scale is clearly marked in both Nm and ft-lb. Always set to within the range (20-100 Nm).
Q4: Does the self-locking feature work for all torque settings?
A: Yes, the self-locking mechanism is active across the entire range. When the preset torque is reached, the ratchet head will disengage, preventing additional torque from being applied. This feature is consistent regardless of the set value.
Q5: Is the wrench covered under warranty for industrial use?
A: Yes, we offer a 1-year warranty against manufacturing defects under normal industrial usage conditions. The warranty does not cover misuse, unauthorized repairs, or damage from excessive force beyond the maximum limit.
Q6: What drive size does it have? Can I use impact sockets?
A: The wrench has a standard 1/2-inch square drive. You can use any standard socket or impact socket with a 1/2-inch female drive. However, for optimal accuracy, we recommend using hand-drive sockets rather than impact sockets due to different mass characteristics.
Q7: Do you provide a calibration certificate?
A: Our factory calibration is performed with traceable equipment. A calibration certificate can be provided as an optional add-on. Please mention this requirement when placing your order.
Q8: Can I get customized torque ranges or other modifications?
A: We offer customization options for volume orders, such as different torque ranges, special scales, or branding. Please contact our sales team to discuss your specific needs.
Ready to enhance your assembly line consistency? Contact us today for a quote or sample request. With our global shipping network from Tianjin, Shanghai, and Ningbo, we can deliver to your doorstep promptly. Invest in quality – invest in Dean Safety & Special Tools.
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