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Help CenterUse in Marine & Offshore Drilling: Non-Magnetic Striking Wrench, Aluminum Bronze, With Lanyard Hole
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As a leading manufacturer since 2001, Cangzhou Dean Safety & Special Tools Co., Ltd introduces our premium Non-Magnetic Striking Wrench, precision-engineered from high-grade Aluminum Bronze for demanding marine and offshore drilling environments. This striking wrench combines exceptional durability with non-magnetic and spark-resistant properties, ensuring maximum safety in explosive atmospheres. Featuring a secure lanyard hole, it provides added protection against dropped tools at height, making it an indispensable choice for rig crews and maintenance teams operating on offshore platforms.
Our wrench is the result of decades of expertise in special tools manufacturing. With an annual export value exceeding US$100 million and a global presence across North America, South America, Europe, Asia, and beyond, Dean Safety delivers reliable, compliant solutions that meet the rigorous demands of the energy sector. Each wrench undergoes strict quality checks to ensure dimensional accuracy, hardness consistency, and corrosion resistance.
Key Features & Benefits
- Non-Magnetic Construction – Prevents interference with sensitive electronic equipment and navigation systems on drilling vessels and platforms.
- Aluminum Bronze Alloy – Offers excellent corrosion resistance in saltwater environments, reducing replacement frequency and lifecycle costs.
- Spark-Resistant Performance – Critical for use in hazardous zones (e.g., Zone 0/1) where flammable gases or vapors may be present.
- Integrated Lanyard Hole – Allows attachment of a safety tether to prevent accidental drops, enhancing worker safety during elevated operations.
- Ergonomic Striking Face – Designed to deliver consistent impact without damaging fasteners, improving efficiency and reducing user fatigue.
- Customizable Sizes – Available in a range of opening widths to fit standard and specialty bolts, with custom dimensions available upon request.
- Lightweight & Balanced – Weighs significantly less than steel equivalents, easing handling during prolonged use.
Technical Specifications
| Parameter | Value |
| Material | Aluminum Bronze (ASTM B150 / equivalent) |
| Hardness (Brinell) | 110–130 HB (typical) |
| Magnetic Permeability | ≤ 1.01 (non-magnetic) |
| Operating Temperature Range | -30°C to +120°C |
| Lanyard Hole Diameter | 6 mm (standard), customizable |
| Weight (typical 24" wrench) | Approx. 1.8 kg |
Why choose Dean Safety for your offshore tooling needs? Our factory in Cangzhou, Hebei, has been manufacturing safety tools for over 22 years, with an annual export value exceeding US$100 million. We ship from Tianjin, Shanghai, and Ningbo ports to markets including North America, Europe, Middle East, Africa, and Oceania. Every tool is backed by rigorous in-house testing and a commitment to quality that has earned us long-term partnerships with major oilfield service companies.
We understand the critical nature of your operations. That's why our Non-Magnetic Striking Wrench is designed to perform under the harshest conditions, reducing downtime and enhancing safety. Custom sizes, special packaging, and bulk orders are always welcome. Contact us today to request a quote or discuss your specific requirements.
Frequently Asked Questions (FAQ)
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Q: Is this wrench truly non-magnetic? Can it be used near sensitive instruments?
A: Yes, our Aluminum Bronze striking wrench has a magnetic permeability of ≤1.01, making it safe for use near compasses, degaussing equipment, and sensitive electronics on drilling vessels.
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Q: What sizes are available? Can you make custom dimensions?
A: We stock standard wrench openings from 24mm to 80mm. Custom sizes and special head configurations are available upon request – simply provide your bolt dimensions.
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Q: Is the lanyard hole pre-drilled? What lanyard can I use?
A: Yes, the lanyard hole is pre-drilled (6mm diameter) and chamfered to prevent fraying. We recommend using a high-strength nylon or Dyneema tether with a carabiner clip.
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Q: How does Aluminum Bronze compare to brass or bronze in corrosion resistance?
A: Aluminum Bronze offers superior resistance to seawater corrosion and stress corrosion cracking compared to ordinary brass or manganese bronze, making it the preferred alloy for offshore applications.
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Q: Can this wrench be used in explosive atmospheres (ATEX/IECEx zones)?
A: While we do not claim formal ATEX or IECEx certification, the non-sparking property of Aluminum Bronze makes it compliant with the safety requirements of most hazardous area tool standards. Please verify with your site's safety officer.
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Q: What is the typical delivery lead time?
A: For standard sizes, lead time is 15–20 working days. Custom orders may take 25–30 days depending on complexity. We ship via sea from Tianjin, Shanghai, or Ningbo.
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Q: Does the wrench come with a certificate of material?
A: Yes, a mill test certificate for the Aluminum Bronze material is included with each shipment. Additional third-party inspection reports can be arranged at cost.
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Q: Are there any limitations on usage temperature?
A: This tool is designed for a service temperature range of -30°C to +120°C. Exposure to higher temperatures may affect hardness and spark resistance. Contact us for high-temperature variants.
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