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Help CenterAluminum Bronze Non-Sparking Double Offset Box Wrench Ring Spanner,Spark-free Safety Spanner
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Dean Safety, a professional manufacturer with over 20 years of experience (established in 2001), presents our Aluminum Bronze Non-Sparking Double Offset Box Wrench Ring Spanner. This spark-free safety spanner is engineered to provide maximum safety in hazardous environments where conventional steel tools can cause sparks and lead to explosions. As a trusted supplier with annual exports exceeding US$100 million, we ensure every tool meets rigorous quality standards for reliability and durability.
The double offset design offers superior access to recessed fasteners, making it ideal for use in confined spaces. Crafted from high-grade aluminum bronze, this wrench not only prevents sparking but also resists corrosion and magnetization, ensuring long service life in harsh conditions. Whether you work in oil refineries, chemical plants, mines, or marine applications, this spanner provides the safety and performance you need.
Key Features & Benefits
- Non-Sparking Safety: Aluminum bronze alloy eliminates the risk of sparks, meeting essential safety requirements for explosive atmospheres (ATEX, IECEx compatible — certifications available upon request).
- Double Offset Design: The 15° offset angle on both ends provides better clearance and leverage, allowing easy tightening or loosening of bolts in hard-to-reach areas.
- Corrosion & Magnetism Resistance: The material naturally resists rust and is non-magnetic, making it suitable for sensitive electronic environments.
- High Strength & Durability: Carefully heat-treated aluminum bronze offers excellent tensile strength and wear resistance, comparable to steel tools in torque capacity.
- Ergonomic Handle: Smooth, rounded edges reduce hand fatigue during prolonged use.
Technical Specifications
| Parameter | Details |
|---|---|
| Material | Aluminum Bronze (CuAl10Fe3 or equivalent) |
| Hardness | HB 110-140 (typical) |
| Available Sizes (mm) | 8, 10, 12, 13, 14, 17, 19, 21, 22, 24, 27, 30, 32, 36, 41, 46, 50, 55, 60, 65 (custom sizes upon request) |
| Offset Angle | 15° (double offset) |
| Weight per unit | Varies by size (approx. 100–800g) |
| Packaging | Individual poly bag, boxed set, or bulk packing as required |
Why Choose Dean Safety?
With our factory located in Cangzhou, Hebei, China, we have been manufacturing safety tools since 2001. Our annual export value exceeds US$100 million, and we serve clients across North America, South America, Europe, Asia, Africa, and Oceania. We ship from major ports including Tianjin, Shanghai, and Ningbo, ensuring timely delivery worldwide. Each wrench undergoes strict quality control to guarantee consistent dimensions and non-sparking performance.
Our aluminum bronze double offset box wrench is trusted by leading oil & gas, chemical, and mining companies for its reliability. The combination of safety, durability, and precision makes it a cost-effective choice for any facility requiring explosion-proof tools. We offer customization options such as special sizes or branding to meet your specific needs.
Contact us today to request a quote or samples. Experience the Dean Safety difference — a partner you can rely on for high-quality spark-free tools.
Frequently Asked Questions (FAQ)
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What is the difference between a double offset box wrench and a standard wrench?
The double offset design has a 15° bend at both ends, providing better access to recessed bolts and allowing the wrench to be flipped for ratcheting action without removing it from the fastener. -
Is this wrench suitable for use in explosive gas environments?
Yes, the aluminum bronze material is non-sparking and meets the requirements for Zone 0, 1, and 2 hazardous areas. However, we recommend confirming specific local regulations and optional certifications with our sales team. -
Can I get this wrench in standard/metric sizes?
We stock both metric and inch (SAE) sizes. Please specify your preference when ordering. Custom sizes are also available. -
How does the torque capacity compare to steel wrenches?
Aluminum bronze wrenches have slightly lower yield strength than high-strength steel, but they are designed to handle the same torque ranges specified for standard spanners. For heavy-duty applications, we recommend consulting the torque chart provided with the tool. -
Does the tool rust or corrode?
Aluminum bronze naturally forms a protective oxide layer and is highly resistant to corrosion, even in marine and chemical environments. No special coatings are needed. -
What is the expected lifespan of this wrench?
With proper use and maintenance, the tool can last for many years. The aluminum bronze alloy does not fatigue like steel and maintains its non-sparking properties over time. -
Do you offer custom engraving or branding?
Yes, we can add your company logo or part number on the tool surface. Minimum order quantities apply. Contact us for details. -
What is the packaging and shipping method?
Each wrench is individually wrapped to prevent damage. We ship via sea, air, or express from Tianjin, Shanghai, or Ningbo. For large orders, we can also arrange container shipment.
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