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Help CenterDrop Forged Cr-V Steel High Torque Single Ring Box Wrench, Heat Treated 45-50 HRC for Mining Ship Machinery
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Cangzhou Dean Safety & Special Tools Co., Ltd, established in 2001 with an annual export value exceeding US$100 Million, proudly presents our Drop Forged Cr-V Steel High Torque Single Ring Box Wrench. As a professional manufacturer based in Cangzhou, Hebei, China, we specialize in producing high-performance tools for demanding industrial environments. This wrench is engineered for mining and ship machinery applications where reliability, durability, and high torque output are critical. Each wrench undergoes rigorous heat treatment to achieve 45-50 HRC hardness, ensuring long service life even under extreme conditions.
Our single ring box wrench is designed to deliver maximum torque transfer without slipping. The drop forging process from chromium-vanadium alloy steel guarantees superior grain structure and impact resistance. The 12-point box end provides secure engagement with fasteners, reducing the risk of rounding corners. Available in a wide range of sizes (from 6mm to 50mm) with customizable finishes and packaging options, this tool is ideal for maintenance and assembly tasks in heavy machinery, mining equipment, and marine vessels.
Key Features & Technical Specifications
Drop Forged Cr-V Steel Construction: Provides exceptional strength and toughness compared to ordinary carbon steel wrenches.
Heat Treated to 45-50 HRC: Optimized hardness balances wear resistance and ductility, preventing breakage under high load.
High Torque Capacity: The single ring box end design allows for greater torque application without risk of tool failure.
12-Point Configuration: Ensures precise fit on square, hex, or 12-point fasteners, minimizing fastener damage.
Corrosion Resistant Finish: Optional black oxide or phosphate coating protects against rust in humid or marine environments.
Ergonomic Handle Design: Slightly curved shaft provides comfortable grip and leverages applied force.
Customizable Options: Size, surface treatment, and packaging can be tailored per customer requirements.
| Size (mm) | Length (mm) | Width (mm) | Weight (g) | Max Torque (Nm) |
|---|---|---|---|---|
| 24 | 310 | 38 | 290 | 250 |
| 27 | 330 | 40 | 340 | 300 |
| 32 | 360 | 44 | 420 | 380 |
| 50 | 450 | 56 | 780 | 650 |
Benefits for Your Business: By choosing our drop forged Cr-V steel wrenches, you reduce downtime due to tool breakage. The high torque capacity speeds up assembly and disassembly tasks, improving operational efficiency. The 45-50 HRC heat treatment ensures the tool maintains its integrity after repeated use in harsh environments like mining shafts or ship engine rooms. Additionally, the customizable options allow you to stock exactly the sizes your team needs, minimizing inventory costs.
Why Partner with Cangzhou Dean?
With over two decades of manufacturing experience (since 2001), we have exported tools worth over US$100 million annually to markets across North America, South America, Europe, Asia, Africa, and Oceania. Our production facility in Cangzhou, Hebei, is equipped with advanced drop forging and heat treatment lines, ensuring consistent quality. We ship from Tianjin, Shanghai, and Ningbo ports, providing flexible logistics options. Each tool is tested for hardness and dimensional accuracy before leaving the factory. We are committed to delivering reliable solutions for your heavy-duty applications.
Ready to optimize your toolkit? Contact us today to request samples or discuss customization. Our team is ready to support your mining or marine machinery needs with professional service and competitive pricing.
Frequently Asked Questions (FAQ)
Q: What is the hardness range of this wrench?
A: The wrench is heat treated to 45-50 HRC, providing an optimal balance of hardness for wear resistance and toughness to prevent chipping.Q: Is this wrench suitable for use on stainless steel fasteners?
A: Yes, the 12-point box end design and hardened steel reduce the risk of galling on stainless steel, but we recommend using appropriate anti-seize when required.Q: Can I get custom sizes or a specific length?
A: Absolutely. We offer customizable sizes within our forging capabilities. Please contact our sales team with your requirements.Q: What is the difference between a single ring box wrench and a combination wrench?
A: A single ring box wrench has a closed end only (no open end), which provides higher torque capacity and a more secure grip on the fastener. It is ideal for applications where high torque is needed.Q: Do you offer a warranty or guarantee on the wrench?
A: Yes, we provide a standard warranty against manufacturing defects. Specific warranty terms can be discussed based on your order volume.Q: Can this wrench be used in explosive atmospheres (e.g., mining areas with gas)?
A: Standard steel wrenches are not non-sparking. For explosive atmospheres, we recommend our non-sparking beryllium copper or aluminum bronze tools, which are available upon request.Q: What surface treatments are available?
A: Common finishes include black oxide and phosphate coating. We can also apply specialized coatings like zinc plating or epoxy coating if required.Q: What is the minimum order quantity (MOQ)?
A: For stock sizes, MOQ is typically 100 pieces per size. For custom or non-standard sizes, MOQ may vary. Contact us for exact details.
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