The VD chain block represents a significant advancement in manual lifting technology, offering a blend of lightweight design, enhanced efficiency, and robust performance. Developed by Qingyuan Juli Hoisting Machinery Co., Ltd., this product is engineered to meet the demands of diverse industrial applications. With its sophisticated structure and high-quality materials, the VD chain block ensures stable operation and long-term reliability, making it a preferred choice for professionals in sectors such as manufacturing, construction, and logistics.
The VD chain block is designed with several innovative features that enhance its functionality and user experience. Below is a detailed overview of its technical specifications:
| 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 incorporates several advanced design elements that set it apart from traditional lifting tools. These features ensure not only superior performance but also enhanced safety and user convenience:
The VD chain block features a double brake system, which provides precise locking positions and effective stall control. This design ensures stable lifting and safety, offering users greater peace of mind during operation. The dual braking mechanism minimizes the risk of unexpected slippage, making it ideal for critical lifting tasks.
The reinforced triangular cover made from thickened alloy steel enhances the product's durability. This design offers excellent resistance to collisions and corrosion, significantly extending the service life of the VD chain block. The robust construction ensures that the hoist can withstand harsh working environments without compromising performance.
The streamlined guide wheel, combined with an enlarged sprocket and smooth bearing, reduces resistance and ensures smoother operation. The derailleur and gear cover are specifically designed to fit the chain, preventing jamming and enabling seamless lifting. This feature is particularly beneficial in applications requiring frequent or continuous use.
The three-bearing linkage design replaces traditional gear friction with rolling bearings, improving rotation efficiency and extending the product's lifespan. This innovation reduces mechanical wear and tear, ensuring consistent performance over time. The design also contributes to a lighter overall weight, enhancing portability.
The pawl is crafted from high-strength manganese steel, which is resistant to wear, fractures, and deformation. After undergoing a quenching process, the pawl becomes even tougher, ensuring reliable operation under heavy loads. This feature is critical for maintaining the integrity of the lifting mechanism during prolonged use.
The hook is quenched and refined with an anti-removal lock, making it both strong and durable. This design prevents accidental disengagement, ensuring the safety of both the load and the operator. The hook's robust construction is ideal for handling heavy and irregularly shaped objects.
The VD chain block is versatile and suitable for a wide range of applications, including but not limited to:
According to the National Institute of Standards and Technology (NIST), manual lifting tools like the VD chain block play a critical role in ensuring workplace safety and efficiency. NIST emphasizes the importance of rigorous testing and certification for such equipment to meet industry standards 1.
Qingyuan Juli Hoisting Machinery Co., Ltd. is a leading manufacturer of lifting and hoisting equipment, specializing in the production of high-quality manual and electric hoists. With years of experience and a commitment to innovation, the company has established itself as a trusted supplier in the global market. Their products are designed to meet international standards, ensuring reliability, safety, and performance in various industrial settings.
Qingyuan Juli's dedication to quality is reflected in their meticulous manufacturing processes and rigorous testing procedures. The VD chain block is a testament to their engineering expertise, combining advanced technology with user-centric design to deliver exceptional value to customers.
The VD chain block is a prime example of how innovative design and high-quality materials can elevate the performance of manual lifting tools. Its advanced features, including the double brake structure, thickened alloy steel cover, and streamlined guide wheel, ensure safe, efficient, and durable operation. Whether used in industrial, construction, or logistics environments, the VD chain block offers a reliable solution for lifting tasks.
As highlighted by the National Institute of Standards and Technology (NIST), the importance of standardized testing and certification for lifting equipment cannot be overstated. Qingyuan Juli Hoisting Machinery Co., Ltd. exemplifies this commitment by adhering to strict quality control measures, ensuring that their products meet the highest industry benchmarks 1.
1 National Institute of Standards and Technology (NIST). (n.d.). About NIST. Retrieved from https://www.nist.gov/



