Welded Steel WH155 Chain | DCC
DCC WH155 Chain is a 153.67mm large-pitch heavy-duty solution tailored for medium-to-heavy industrial transmission. With 411KN minimum tensile strength and 27.7kg/m weight, it’s engineered from high-quality alloy steel, paired with automated robot welding and targeted surface treatment—focused on high-load, frequent-use scenarios where ordinary chains fall short. Backed by DCC’s precision manufacturing, it delivers stable performance in harsh environments while cutting TCO and downtime.
Key Features of DCC WH155 Chain
● Large-Pitch Precision Design: 153.67mm pitch ensures stable engagement with large-diameter sprockets, reducing vibration vs. smaller-pitch chains for heavy-duty transmission.
● Heavy-Load Core: 411KN tensile strength + 14.27mm thick sidebars, optimized for high-load scenarios that demand more than standard chains.
● Automated Welding for Large-Spec Stability: Robot-welded joints eliminate manual defects, critical for maintaining uniformity in the WH155’s larger structure.
● Automated Welding for Large-Spec Stability: Robot-welded joints eliminate manual defects, critical for maintaining uniformity in the WH155’s larger structure.
● Wide Speed Adaptability: From low-speed heavy-conveyance to high-speed transmission, avoiding mismatch failures in complex industrial systems.
Technical Specifications of DCC WH155 Chain
Material Properties
✓ Core Material: High-quality alloy steel, tailored for the WH155’s high-load (411KN) and frequent-operation demands.
✓ Welding: Automated robot welding, ensuring consistent strength across the chain’s larger weld points.
✓ Surface Treatment: Galvanization/coating, targeted to protect the WH155’s large contact area from corrosion.
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) |
WHX155 | 153.67 | 44.45 | 28.42 | 63.5 | 73.6 | 111.25 | 14.27 | 411 | 27.7 |
WHX155(H) | 153.67 | 44.45 | 28.42 | 63.5 | 73.6 | 111.25 | 14.27 | 411 | 27.7 |
Technical Specifications of DCC WH155 Chain Attachment
Matching Chain No. | Attachment Dimensions | |||||||
B(mm) | D(mm) | E1(mm) | E2(mm) | F(mm) | H(mm) | W(mm) | T(mm) | |
WHX155 | 41.4 | 14.3 | 69.85 | 106.5 | 190.5 | 46 | 233.2 | 14.3 |
Why Choose DCC WH155 Chain?
Larger Pitch, More Stable Heavy-Duty Transmission: 153.67mm pitch outperforms smaller chains in engaging large sprockets for bulk material handling.
Higher Load Reserve: 411KN tensile strength handles heavier loads than standard heavy-duty chains, ideal for medium-to-heavy industrial needs.
Built for Frequent Use: Alloy steel + robot welding ensures durability in high-cycle operations, reducing replacement vs. ordinary large-pitch chains.
Targeted Harsh-Env Adaptation: Surface treatment + -40°C to +300°C temperature resistance, suited for mining/metallurgy/chemical sites where large chains face more corrosion/wear.
Low Noise for Large-Spec: Precision design keeps noise below industry average—rare for large-pitch heavy chains.
Application Scenarios of DCC WH155 Chain
● Large-Scale Material Conveyors
Mining/port/construction lines (transporting ores/aggregates) where large pitch + high load capacity is required.
● Heavy Machinery Transmission
Engineering/hoisting equipment (high-load, frequent operation) that needs the WH155’s 411KN tensile strength.
● Light-Duty Transfer Conveyors
Ideal for warehouse distribution centers and logistics facilities, efficiently transporting packages, parcels, and light materials with smooth, quiet operation suitable for multi-shift facilities.
● Extreme-Temp Heavy-Duty Sites
Steel sintering lines/cement kiln heads (WH155(H) for +200°C~+300°C) where large chains must retain strength.
Certification and Standards of DCC WH155 Chain
The company has obtained multiple international quality certifications, including ISO 9001 and CE certification. Each batch of WH155 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.
 |  |  |
Why choose DCC?
● Excellent Quality Assurance System
Our company has successfully obtained API and ISO 9001 certifications, ensuring that all WH155 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 WH155 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 WH155 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 WH82 Chain products come with a warranty period of up to 24 months.
FAQ
Q: What surface treatment options are available for the WH155 Chain?
A: It adopts specialized surface treatments such as galvanization or coating, effectively resisting moisture, humidity, and external corrosion.
Q: How ensures the welding quality of the WH155 Chain?
A: Automated welding robots are used for all weld points, ensuring stability, uniformity, and consistency of each weld, eliminating manual welding defects.
Q: How does the WH155 Chain reduce TCO?
A: Its extended service life (from advanced material and processes), low wear rate, and reduced downtime (convenient maintenance) collectively lower replacement and labor costs by over 30%.
Q: What routine maintenance is required?
A: Pre-lubricated design; lubricate every 6 months under normal conditions, every 3 months in harsh environments. Keep clean of debris, avoid strong acids/alkalis, and check tension monthly.
