The VD chain block represents a significant advancement in manual lifting technology, combining enhanced design, superior materials, and innovative engineering to deliver unmatched performance. Developed by Qingyuan Juli Hoisting Machinery Co., Ltd., this product is engineered to meet the demands of diverse industrial applications, from construction sites to manufacturing facilities. This article explores the key features, technical specifications, and real-world applications of the VD chain block, supported by insights from authoritative sources like the National Institute of Standards and Technology (NIST).
The VD chain block is designed to address the limitations of traditional manual lifting systems, offering a more efficient and reliable solution. Its upgraded structure and compact size make it ideal for applications where space is limited. The use of high-quality materials ensures durability, while the refined craftsmanship guarantees stable performance even after prolonged use.
The VD chain block features a double brake structure, which provides precise locking positions and effective stall control. This design ensures safe lifting operations by preventing accidental slippage, even under heavy loads. Additionally, the reinforced triangular cover made of thickened alloy steel offers resistance to collisions and corrosion, significantly extending the product's service life.
One of the standout features of the VD chain block is its streamlined guide wheel, which minimizes resistance and ensures smoother operation. The enlarged guide sprocket, combined with a derailleur and gear cover that fits the chain perfectly, eliminates chain jamming and reduces friction. This results in a more efficient lifting process, saving time and effort for users.
The VD chain block incorporates a three-bearing linkage design, which replaces traditional gear friction with rolling bearings. This innovation enhances rotation efficiency and prolongs the product's lifespan. The high-strength manganese steel pawl, hardened through a quenching process, ensures robustness and resistance to wear and tear. The safe-designed hook, featuring a quenched and refined anti-removal lock, further reinforces the product's reliability.
The VD chain block is available in multiple models, each tailored to specific lifting requirements. The following table provides a detailed overview of the technical specifications for each model:
| Model | VD-0.5 | VD-1 | VD-1.5 | VD-2 | VD-3 | VD-5 | VD-10 | VD-20 |
|---|---|---|---|---|---|---|---|---|
| Capacity (t) | 0.5 | 1 | 1.5 | 2 | 3 | 5 | 10 | 20 |
| Standard Lifting Height (m) | 2.5 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 | 3 |
| Test Load Capacity (t) | 0.75 | 1.25 | 2.25 | 3 | 4.5 | 7.5 | 12.5 | 25 |
| Pulling Force to Lift Full Load (N) | 262 | 324 | 395 | 330 | 402 | 430 | 438 | 438 |
| No. of Load Chain Lines | 1 | 1 | 1 | 1 | 1 | 2 | 4 | 8 |
| Diameter of Load Chain (mm) | 5 | 6 | 7 | 8 | 10 | 10 | 10 | 10 |
| Net Weight (kg) | 9.3 | 12.2 | 16.5 | 19.5 | 32 | 43 | 80.7 | 180 |
| Extra Weight per Meter of Extra Lifting Height (kg) | 1.5 | 1.8 | 2 | 2.7 | 3.2 | 5.3 | 9.8 | 19.6 |
The VD chain block is a versatile tool suitable for a wide range of industrial applications. Its compact design and lightweight construction make it ideal for tasks that require portability and precision. According to NIST's research on manufacturing standards, the integration of high-performance lifting equipment is critical for optimizing operational efficiency and ensuring worker safety.
In the construction industry, the VD chain block is used for lifting and positioning heavy materials, such as steel beams and concrete slabs. Its ability to handle loads up to 20 tons makes it a reliable choice for projects requiring robust lifting solutions. The manual chain hoist design allows for easy maneuverability in confined spaces, reducing the need for complex rigging systems.
Manufacturing facilities benefit from the VD chain block's precision and durability. It is commonly used in assembly lines for lifting components and machinery, ensuring smooth production processes. The chain hoist block design minimizes downtime by providing consistent performance, even in demanding environments.
The VD chain block is also widely used in agricultural and logistics operations. For instance, it is employed in loading and unloading cargo from vehicles, as well as in the maintenance of farm equipment. Its resistance to corrosion and wear makes it suitable for outdoor use, even in harsh conditions.
Qingyuan Juli Hoisting Machinery Co., Ltd. is a leading manufacturer of lifting equipment, with a strong reputation for innovation and quality. The company's commitment to excellence is reflected in its advanced manufacturing processes and adherence to international standards. As highlighted in NIST's guidelines on industrial standards, companies that prioritize precision and reliability are better positioned to meet the evolving demands of the market.
With decades of experience in the industry, Qingyuan Juli has developed a comprehensive product portfolio that includes various types of chain hoists and lifting blocks. The VD chain block is a testament to the company's dedication to delivering solutions that enhance productivity and safety. By investing in research and development, Qingyuan Juli continues to set benchmarks for quality and performance in the lifting equipment sector.
The VD chain block is a prime example of how advanced engineering and high-quality materials can revolutionize manual lifting operations. Its innovative design, robust performance, and versatility make it an indispensable tool for industries ranging from construction to manufacturing. As NIST emphasizes in its research on manufacturing technologies, the adoption of reliable and efficient equipment is crucial for driving productivity and ensuring safety in the workplace.
For more information about the VD chain block and other products from Qingyuan Juli Hoisting Machinery Co., Ltd., visit the company's official website. Whether you're looking for a chain hoist block or a manual chain hoist, Qingyuan Juli offers solutions tailored to meet your specific needs.
NIST. (n.d.). National Institute of Standards and Technology. https://www.nist.gov
NIST. (n.d.). Manufacturing. https://www.nist.gov/manufacturing
NIST. (n.d.). Standards and Measurements. https://www.nist.gov/standards-and-measurements



