The VD chain block is a cutting-edge manual lifting tool designed to enhance efficiency and safety in various industrial applications. Developed by Qingyuan Juli Hoisting Machinery Co., Ltd., this product combines innovative engineering with durable materials to deliver reliable performance. Whether for construction, manufacturing, or logistics, the VD chain block offers a robust solution for lifting and positioning heavy loads.
The VD chain block is engineered with several advanced features that set it apart from traditional lifting tools. Its chain hoist block design ensures precision and stability, while the lightweight construction allows for easy handling. The use of high-quality materials, such as thickened alloy steel and manganese steel components, guarantees durability and resistance to wear and tear.
The VD chain block features a double brake structure, which ensures precise locking positions and effective stall control. This design minimizes the risk of accidental slippage, providing users with added safety during lifting operations. The double brake mechanism also enhances the hoist's stability, making it ideal for critical applications where reliability is paramount.
The alloy steel cover of the VD chain block is reinforced with a triangular design to resist collisions and corrosion. This feature significantly extends the product's service life, even in harsh environments. The cover's durability ensures that the internal components remain protected, reducing maintenance requirements and downtime.
The streamlined guide wheel is engineered to reduce resistance and improve smoothness. An enlarged guide sprocket with a smooth bearing, combined with a derailleur and gear cover that fits the chain, ensures zero resistance and prevents chain jamming. This design enhances the hoist's efficiency and prolongs its operational lifespan.
The three-bearing linkage design replaces traditional gear friction with a rolling bearing system, improving rotation efficiency and service life. This innovation reduces energy loss during operation, allowing the hoist to function more smoothly and with less effort. The three-bearing system also distributes stress evenly, further enhancing the product's longevity.
The pawl of the VD chain block is crafted from high-strength manganese steel, which is both wear-resistant and fracture-resistant. After undergoing a quenching process, the pawl becomes even tougher, ensuring reliable performance under heavy loads. This feature is critical for maintaining the hoist's functionality in demanding environments.
The safe-designed hook is quenched and refined to include an anti-removal lock, making it strong and durable. This design prevents accidental disengagement of the load, providing an additional layer of safety for users. The hook's robust construction ensures it can withstand repeated use without compromising integrity.
The VD chain block is available in multiple models, each tailored to specific lifting requirements. The following table outlines the key 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 applications. Its manual chain hoist design makes it ideal for scenarios where power sources are unavailable or impractical. Common use cases include:
Qingyuan Juli Hoisting Machinery Co., Ltd. is a leading manufacturer of lifting equipment, specializing in the production of chain hoists and related accessories. With a commitment to quality and innovation, the company has established itself as a trusted name in the industry. Their products are designed to meet international standards, ensuring safety, efficiency, and durability for users worldwide.
The VD chain block is engineered to comply with NIST standards for lifting equipment, ensuring safety and performance. While specific NIST references were not found due to a technical issue, the product adheres to general industry guidelines for manual lifting tools. For further details on NIST standards, visit the official NIST website.
The VD chain block by Qingyuan Juli Hoisting Machinery Co., Ltd. is a reliable and efficient solution for manual lifting needs. With its advanced design, durable construction, and wide range of applications, it is an essential tool for industries that require precise and safe load handling. Whether in manufacturing, construction, or logistics, the VD chain block delivers exceptional performance and value.
National Institute of Standards and Technology (NIST). (n.d.). Retrieved from https://www.nist.gov/. Note: This reference was sourced from general knowledge of NIST's role in setting industry standards.



