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Help CenterHigh Precision Non-Sparking Adjustable Torque Wrench
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As a professional manufacturer since 2001, Cangzhou Dean Safety&Special Tools Co., Ltd proudly presents the High Precision Non-Sparking Adjustable Torque Wrench. Designed for critical environments where sparks can lead to catastrophic accidents, this wrench combines the essential safety features of non-sparking materials with the precision demanded by modern torque applications. Our factory in Hebei, China, leverages decades of metallurgical expertise to produce tools that meet the highest international standards for explosion-proof operations.
This adjustable torque wrench is engineered to deliver reliable, repeatable torque values in volatile atmospheres such as oil refineries, chemical plants, grain silos, and mining sites. The non-sparking property is achieved through the use of specialized copper‑beryllium or aluminum‑bronze alloys, which eliminate the risk of friction‑induced sparks. Meanwhile, the click‑stop mechanism provides an audible and tactile indication when the preset torque is reached, ensuring accurate tightening without over‑torquing.
Below are the key technical specifications of our standard model. Custom torque ranges and drive sizes are available upon request to suit your specific application.
| Parameter | Value |
| Torque Range | 20 – 200 N·m |
| Drive Size | 1/2" square drive |
| Accuracy | ±3% of setting (clockwise) |
| Material Options | Beryllium copper / Aluminum bronze |
| Length | 480 mm |
| Weight | 1.8 kg |
Product Features & Benefits:
- Non-Sparking Safety: Manufactured from certified copper alloys that prevent sparks even under heavy friction or impact – ideal for Zone 0/1 hazardous areas.
- High Precision: Calibrated to ±3% accuracy, traceable to international standards. Each wrench is individually tested before shipment.
- Adjustable Torque Setting: Easy‑to‑read micrometer scale allows quick and accurate torque adjustment. The locking ring secures the setting during use.
- Durable Construction: Heat‑treated alloy provides extended service life. Resists corrosion and wear in harsh environments.
- Ergonomic Handle: Comfortable grip reduces operator fatigue during repetitive tasks.
- Bidirectional Operation: Works for both clockwise and counterclockwise tightening (accuracy ±5% in reverse).
- Calibration Certificate Included: Each tool comes with a factory calibration certificate. Third‑party certification can be arranged upon request.
Our non‑sparking torque wrenches are widely used in industries where safety and precision are non‑negotiable. For example, in petrochemical plants, they ensure that flange bolts are tightened to exact specifications without creating ignition sources. In mining, they provide reliable torque control for explosion‑proof equipment.
Cangzhou Dean Safety&Special Tools Co., Ltd has been a trusted manufacturer in the safety tool sector for over two decades. With an annual export value exceeding US$100 Million, our products are shipped from Tianjin, Shanghai, and Ningbo to major markets across North America, South America, Europe, Africa, and Asia. We serve demanding customers in the oil & gas, chemical, aerospace, and defense industries. Our factory adheres to strict quality control processes, and we offer customized solutions including special torque ranges, different drive sizes, and alternative non‑sparking materials.
Choose our High Precision Non-Sparking Adjustable Torque Wrench for a tool that combines safety, accuracy, and durability. Contact us today for a quote or to discuss your specific requirements. We look forward to becoming your long‑term partner in safety tools.
Frequently Asked Questions (FAQ):
-
Q: Is this torque wrench suitable for use in explosive atmospheres?
A: Yes, it is specifically designed for hazardous environments. The non‑sparking copper alloy eliminates the risk of ignition from friction or impact. -
Q: What is the accuracy of the wrench?
A: The standard accuracy is ±3% of the set torque value in the clockwise direction. For counterclockwise, accuracy is ±5%. -
Q: Can I get a calibration certificate?
A: Yes, each wrench comes with a factory calibration certificate. We can also arrange third‑party certification if required. -
Q: What torque ranges are available?
A: Our standard range is 20‑200 N·m. We can produce other ranges, such as 5‑50 N·m or 50‑500 N·m, based on your needs. -
Q: How do I adjust the torque setting?
A: Loosen the locking ring, turn the handle to align the scale with your desired torque value, then retighten the locking ring. A click sound confirms correct setting. -
Q: Is the wrench reversible?
A: Yes, it operates bidirectionally. Please note that reverse torque accuracy is slightly lower than clockwise. -
Q: What materials are available?
A: We offer beryllium copper and aluminum bronze alloys. Both are non‑sparking and corrosion resistant. -
Q: How long is the warranty?
A: We provide a 12‑month warranty against manufacturing defects. Extended warranty options are available upon request.
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