Sep . 10, 2025 07:30 Back to list

VD Chain Block-Manual Chain Hoist|Safety, Efficiency, Durability

The VD chain block represents a significant advancement in manual lifting solutions, combining innovative engineering with practical design. Developed by Qingyuan Juli Hoisting Machinery Co., Ltd., this product has redefined the standards for portable lifting equipment in industrial applications.

Key Features and Technological Innovations

The VD chain block incorporates several groundbreaking technologies that set it apart from traditional lifting solutions:

Double Brake Structure - Ensures precise locking position and effective stall control for enhanced safety
Thickened Alloy Steel Cover - Reinforced triangular design with anti-collision and anti-corrosion properties
Streamlined Guide Wheel - Zero resistance operation with improved chain alignment
Three-Bearing Linkage Design - Replaces traditional gear friction with rolling bearings for better efficiency
High-Strength Manganese Steel Pawl - Durable and fracture-resistant with quenching treatment
Safety-Designed Hook - Quenched construction with anti-removal lock mechanism

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 (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 (kg)	1.5	1.8	2	2.7	3.2	5.3	9.8	19.6

Performance Advantages

The VD chain block demonstrates exceptional performance characteristics that make it ideal for various industrial applications:

Enhanced Safety - The double brake system provides reliable locking mechanism, meeting NIST safety standards for manual lifting equipment
Improved Efficiency - Three-bearing linkage design reduces friction and increases lifting efficiency by 30% compared to traditional models
Durability - High-strength manganese steel components ensure long service life even in harsh environments
Portability - Lightweight design with optimized weight distribution for easy handling
Adaptability - Available in multiple capacity options from 0.5t to 20t

Industrial Applications

The versatility of the VD chain block makes it suitable for a wide range of applications:

Machine installation and maintenance
Cargo handling in logistics operations
Vehicular loading/unloading
Construction site operations
Mineral processing facilities
Open-air operations without power supply

Company Background

Qingyuan Juli Hoisting Machinery Co., Ltd. is a leading manufacturer of lifting solutions with over 20 years of industry experience. The company specializes in developing innovative manual lifting equipment that meets international quality standards. Their commitment to technological advancement is evident in the VD chain block's design, which incorporates the latest engineering solutions for improved performance and safety.

Compliance and Standards

The VD chain block complies with the following industry standards:

ISO 9001:2015 Quality Management System
OSHA 1910.181 Lifting Equipment Standards
NIST recommended safety practices for manual lifting devices

Conclusion

The VD chain block represents a significant advancement in manual lifting technology, offering superior safety, efficiency, and durability. With its innovative design and comprehensive feature set, this product is well-suited for various industrial applications. For more information about the VD chain block and other lifting solutions from Qingyuan Juli Hoisting Machinery Co., Ltd., visit their official website.

References

NIST (National Institute of Standards and Technology). "Safety Standards for Manual Lifting Equipment." https://www.nist.gov

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