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Mingpin Hardware is a professional manufacturer of Carabiners, serving as the source factory in the market. We offer comprehensive customized services, including OEM and ODM, to cater to diverse customer requirements.
Our Carabiners are equipped with exceptional load-bearing capacity, ensuring reliability and safety in various applications. Meanwhile, we focus on lightweight design without compromising strength, making our products convenient to carry and use.
We employ advanced production processes, which guarantee the high-quality and durable performance of our Carabiners. Every product undergoes rigorous quality checks and tests before leaving our factory. Our strict quality control system ensures that each Carabiner meets the highest standards of safety and functionality.
We are committed to continuous research and development, constantly seeking to innovate and enhance our product line. This enables us to provide our customers with the most advanced and effective Carabiner solutions available in the market.
With our superior product quality, reliable performance, and competitive pricing, we strive to be the trusted partner of our customers, helping them achieve their goals more cost-effectively.

About Us
Mingpin (Zhejiang) Hardware Co., Ltd.
Mingpin (Zhejiang) Hardware Co., Ltd. is rooted in the Shuige Industrial Zone, Liandu District, Lishui City, Zhejiang Province, known as "China's Most Ecological City." As a global leader in innovation in climbing and rescue equipment, we leverage cutting-edge technology as our core driving force and have been granted over 120 national invention and utility model patents, 37 of which address industry gaps.

Not only is the company the exclusive equipment supplier for the National Alpine Rescue Team, but we also provide in-depth services to over 350 professional rescue teams in 28 provinces and cities nationwide. Our product portfolio covers eight key areas: high-altitude rescue, firefighting special services, industrial fall protection, competitive rock climbing, and water operations. Leveraging military-grade precision manufacturing standards and EU CE/EN12841 dual certification, our core products, including safety buckles, rappelling systems, and intelligent protective devices, are sold in 56 countries and regions worldwide, with our market share in the European professional equipment market exceeding 35% for five consecutive years.

The Technology Center is equipped with Asia's leading vertical testing laboratory, integrating over 30 million RMB worth of testing equipment, including fully automatic material testing machines, high-precision 3D spectrometers, and nano-metallographic microscopes. This system integrates a 16-step quality control system from raw materials to finished products. Certified to ISO9001:2015 and UIAA standards, the International Mountaineering Federation, we invest 18% of our annual revenue in R&D and innovation, ensuring that every product passes 216 hours of extreme salt spray testing and 12,000 dynamic load tests.

As a National High-Tech Enterprise and a Zhejiang Province Specialized and New Enterprise, we have established an aviation-grade precision manufacturing joint laboratory with Xi'an Aircraft Industry (Group) Co., Ltd. Our core technologies have been successfully applied to the development of high-altitude rescue equipment, and we have assisted national and local rescue teams in over 50 major disaster relief operations, including those in Wenchuan and Ya'an. From earthquake ruins to avalanche sites, Mingpin Hardware safeguards lifelines with aerospace-grade safety standards.
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Industry knowledge

Carabiners not only provide reliable connection points but also ensure operational flexibility in various work scenarios. Carabiners come in several types depending on their use and safety requirements, with Locking Carabiners and Screw Lock Carabiners being two common types.

Carabiner Functions and Classification

The main function of a carabiner is to serve as a connection point for rope systems and equipment, ensuring safe load bearing and convenient operation. Based on the locking mechanism and usage scenarios, carabiners can be classified as follows:

  • Non-locking Carabiners: Suitable for quick connections and frequent operations, but require the use of other locking devices in high-risk environments.
  • Locking Carabiners: Equipped with an automatic or manual locking mechanism to prevent accidental opening, suitable for carrying critical loads.
  • Screw Lock Carabiners: Secured by rotating a locking nut, increasing safety and suitable for situations requiring stable connections.

Choosing the right type of carabiner can effectively improve the safety and efficiency of the rope system.

Features of Locking Carabiners

A Locking Carabiner is a type of carabiner with an added locking mechanism to prevent accidental opening during operation. Its features include:

  • Enhanced safety: The locking mechanism reduces the risk of accidental opening, ensuring the stability of critical connection points.
  • Wide range of applications: Can be used in working at heights, rock climbing, rescue operations, and industrial work.
  • Diverse operating methods: Can be operated manually by rotating, pushing, pulling, or automatically locking, allowing for flexible selection based on usage needs.

During operation, it is necessary to confirm that the locking mechanism is fully engaged to ensure that the connection point does not accidentally loosen during loading or movement.

Advantages of Screw Lock Carabiners

Screw Lock Carabiners secure the carabiner by rotating a locking nut, which is relatively simple to operate while increasing safety. Its main advantages include:

  • Visual locking: The locked state is easy to confirm, allowing operators to quickly determine if it is safe.
  • Reliable connection: In load-bearing or vibrating environments, the screw lock effectively prevents accidental loosening.
  • High durability: The metal material and structural design are suitable for repeated use in outdoor and industrial settings.

Screw Lock Carabiners are suitable for long-term attachment of critical equipment, connecting safety ropes, or as fixed points for high-risk operations.

Carabiner Application Scenarios

Carabiners are widely used in various climbing and high-altitude work scenarios. Below are some typical applications:

Type Main Function Applicable Scenarios Usage Tips
Locking Carabiner Prevents accidental opening, carries critical loads Rock climbing, rescue, high-altitude work Ensure the locking mechanism is fully engaged, avoid loosening due to vibration
Screw Lock Carabiner Rotatable locking, increased connection stability Industrial high-altitude work, suspended equipment, rescue operations Check after tightening to avoid overtightening or undertightening
Non-locking Carabiner Quick connection, flexible operation Everyday mountaineering, lightweight equipment attachment Not suitable for critical load points, requires combination with other safety devices

Precautions for Using Carabiners

Correct use of carabiners can significantly improve operational safety and efficiency. Here are some precautions:

  • Load Limit: Use according to the maximum load capacity indicated on the carabiner, avoid overloading.
  • Locking Check: For Locking Carabiners and Screw Lock Carabiners, always confirm the locking status before use.
  • Avoid Cross-Loading: Ensure the rope or webbing is loaded in the designed direction, avoiding lateral forces or twisting.
  • Regular Maintenance: Keep the carabiner clean, avoiding mud, salt, or corrosive substances that may affect locking and opening.

By following these precautions, users can reduce the risk of accidents and extend the lifespan of the carabiner.

Operating Techniques and Combined Use

In actual climbing or high-altitude work, carabiners are usually used in conjunction with safety harnesses, ropes, descenders, and other equipment. Here are some operating techniques:

  • Multi-point Attachment: In high-altitude work, use multiple carabiners to distribute the load and improve system stability.
  • Locking Sequence: When attaching multiple devices, use Locking Carabiners or Screw Lock Carabiners as critical connection points first, then use non-locking carabiners to attach auxiliary tools.
  • Check Locking Status: Regularly check the locking status during operation, especially in vibrating or moving environments.

These techniques help ensure that carabiners maintain safety and reliability in various usage environments.

The Role of Carabiners in Safety Systems

Carabiners are not only connecting tools but also an important part of a complete safety system. In climbing, rescue, or industrial work at height, it can:

  • Quickly connect and disconnect equipment, improving operational efficiency.
  • Form a multi-point safety attachment system, distributing the load and increasing stability.
  • Combine with equipment such as rope descenders and fall arresters to provide more comprehensive safety protection.
  • Through rational configuration and combination of different types of carabiners, operators can enhance the overall system safety while maintaining flexibility.

Carabiners play a crucial role in modern climbing and work at height. Whether it's a Locking Carabiner used to bear critical loads or a Screw Lock Carabiner that enhances stability through rotational locking, they provide reliable connection and operational support in various scenarios.

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