Welded Steel WH111 Chain | DCC
DCC WHX111 Chain is a medium-duty transmission solution tailored for mid-scale industrial applications, crafted from high-quality alloy steel with automated welding and specialized surface treatment. Boasting a 120.9mm optimized pitch, 224.6KN tensile strength, and 11.9kg/m lightweight design, it balances load-bearing reliability and energy efficiency—ideal for medium-load, high-frequency scenarios where heavy-duty chains are redundant. Backed by DCC’s strict quality control, it delivers cost-effective durability for general machinery, conveyors, and automated lines, cutting TCO.
Key Features of DCC WH111 Chain
● Precise Medium Pitch Structure:The 120.9mm pitch has undergone mechanical optimization to match the meshing tooth profile of medium-diameter sprockets. Compared with small-pitch chains, it reduces tooth surface pressure; compared with large-pitch chains, it lowers operational impact, enabling smooth transmission in medium-load scenarios.
● Lightweight Engineering Design: A self-weight of 11.9kg/m is achieved through precise material thickness proportioning (9.5mm side plate thickness). While meeting the tensile strength requirement of 224.6KN, it significantly reduces the inertial load of the transmission system.
● Precision Fitting Process:The 19.05mm pin and 36.5mm bushing adopt a gap-optimized design. Combined with the friction surface treated by high-frequency quenching, it reduces wear during medium-speed operation and extends the matching service life of components.
● Automated Welding Reinforcement: Robotic welding focuses on the stress key points of medium-sized chains, ensuring uniform weld penetration. This avoids weld fatigue cracking under medium-load and high-frequency working conditions.
● Targeted Protection Design: The surface galvanizing/coating process covers the contact area with a width of 57.15-84.8mm. It mainly resists common corrosions in medium-load scenarios such as industrial dust and slight humidity, rather than causing cost waste due to excessive protection.
Technical Specifications of DCC WH111 Chain
Material Properties
✓ Core Material: High-quality alloy steel, balancing strength and lightweight for the WHX111’s medium-load and high-frequency needs.
✓ Pins & Bushings: 19.05mm pin + 36.5mm bushing, precision-machined for tight fit and low friction.
✓ Welding Technology: Automated robot welding, ensuring consistent strength across medium-spec weld points.
✓ Surface Treatment: Galvanization or coating, protecting the 57.15-84.8mm width contact area from erosion.
chain no. | pitch P (mm) | Outer diameter of bushing d1 (max.) (mm) | Diameter of pin d2 (max.) (mm) | Height of sidebar h2 (max.) (mm) | Inner width of narrow end b1 (max.) (mm) | Outer width of narrow end b2 (max.) (mm) | Thickness of sidebar T (max.) (mm) | Tensile strength Q (min.) (KN) | Weight per meter q (kg/m) |
WHX111 | 120.9 | 36.5 | 19.05 | 38.1 | 57.15 | 84.8 | 9.5 | 224.6 | 11.9 |
Why Choose DCC WH111 Chain?
Precise Medium Pitch Structure: The 120.9mm pitch has undergone mechanical optimization to match the meshing tooth profile of medium-diameter sprockets. Compared with small-pitch chains, it reduces tooth surface pressure; compared with large-pitch chains, it lowers operational impact, enabling smooth transmission in medium-load scenarios.
Lightweight Engineering Design: A self-weight of 11.9kg/m is achieved through precise material thickness proportioning (9.5mm side plate thickness). While meeting the tensile strength requirement of 224.6KN, it significantly reduces the inertial load of the transmission system.
Precision Fitting Process: The 19.05mm pin and 36.5mm bushing adopt a gap-optimized design. Combined with the friction surface treated by high-frequency quenching, it reduces wear during medium-speed operation and extends the matching service life of components.
Automated Welding Reinforcement: Robotic welding focuses on the stress key points of medium-sized chains, ensuring uniform weld penetration (different from the thick-plate welding of heavy-duty chains and thin-plate welding of light-duty chains). This avoids weld fatigue cracking under medium-load and high-frequency working conditions.
Targeted Protection Design: The surface galvanizing/coating process covers the contact area with a width of 57.15-84.8mm. It mainly resists common corrosions in medium-load scenarios such as industrial dust and slight humidity, rather than causing cost waste due to excessive protection.
Application Scenarios of DCC WH111 Chain
● Medium-Scale Conveyors
Applied in food processing, light industry manufacturing, and mine auxiliary lines, they are suitable for material conveying at 5-15 tons per hour, avoiding overload of light-duty chains or waste of heavy-duty chains.
● General Machinery Transmission
Used in agricultural machinery (combine harvesters), textile machinery, and small construction machinery, they meet the demand for stable transmission with medium power output.
● Automated Production Lines
Adapted for electronic component assembly, automobile parts sub-assembly, and plastic molding equipment, they are suitable for low-medium speed (0.5-3m/s) scenarios with high-frequency start-stop.
● Indoor & Mild Outdoor Equipment
Applied in warehouse logistics sorting lines, small port auxiliary equipment, and workshop transfer systems, they resist dust and slight moisture, requiring no high-frequency maintenance.
● Medium-Load Hoisting Auxiliaries
Used in small factory cranes and material hoists, their 224.6KN tensile strength meets safety load requirements, and the lightweight design reduces hoisting energy consumption.
Certification and Standards of DCC WH111 Chain
The company has obtained multiple international quality certifications, including ISO 9001 and CE certification. Each batch of WH111 Chain products undergoes rigorous dimensional inspection, tensile testing, and fatigue analysis to ensure compliance with DIN, ANSI, and ISO standards, providing reliable quality assurance and full traceability to customers worldwide.
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Why choose DCC?
● Excellent Quality Assurance System
Our company has successfully obtained API and ISO 9001 certifications, ensuring that all WH111 Chain products meet international standards with consistent quality and performance.
● Efficient Service and Superior Cost-effectiveness
DONGCHUAN chains establish extensive collaboration with Changzhou University for Digital Design and Production Engineering of Chain Transmission, significantly improving production efficiency and effectively reducing production costs.
● International Service and Global Customer Support
In the course of more than 10 years of operation, we have provided consistent quality and cost-effective WH111 Chain solutions to more than 40 countries and regions around the world, winning wide trust and praise.
● Innovation and Continuous Improvement
Committed to technological innovation and continuous improvement, we consistently stay at the forefront of industry technology development with advanced manufacturing processes for WH111 Chain production.
● After-sales Service
We focus not only on short-term cooperation but also on establishing long-term, stable partnerships with our clients. Our WH111 Chain products come with a warranty period of up to 24 months.
FAQ
Q: What’s WHX111’s core positioning?
A: A medium-duty chain for mid-scale applications—224.6KN tensile strength, perfect for scenarios where light-duty is insufficient and heavy-duty is redundant.
Q: How does it differ from WH155?
A: WHX111 is lighter (11.9kg/m vs. 27.7kg/m), smaller-pitch (120.9mm vs. 153.67mm), and lower-strength, focusing on medium-load efficiency.
Q: What surface treatment is available?
A: Galvanization or coating, resisting moisture, dust, and mild corrosion in general industrial environments.
Q: Is it suitable for high-speed operation?
A: Optimized for low-to-medium speed transmission, ensuring stable performance in medium-frequency scenarios.
