Heavy Duty Welded Chain

Our heavy duty welded chain is made of high-strength alloy structural steel as raw material, and the chain link welding process is completed by imported fully automatic flash butt welding equipment throughout the process. The weld seam is fully fused, the internal metal structure is dense, and the strength of the welded part can reach more than 95% of the base metal itself. It is a professional load-bearing chain with extremely high reliability in industrial heavy-load scenarios. The product covers multiple strength grades of Grade G60 and G80. After forming, the chain links undergo overall quenching and tempering heat treatment, which combines high tensile strength with good impact toughness. It can maintain stable performance under complex working conditions of frequent lifting and dynamic loads, and effectively eliminate the risk of low-stress fracture. Our heavy duty welded chain implements online ultrasonic flaw detection random inspection for each weld seam, eliminating products with hidden defects such as false welding, slag inclusion and blowholes, ensuring that every meter of chain delivered from the factory has consistent high quality, and can be directly used in core load-bearing scenarios such as lifting riggings, industrial traction and equipment matching.

To adapt to the use environment and working condition requirements of different industries, heavy duty welded chain can be customized with a variety of surface protection processes such as blackening, electro-galvanizing, hot-dip galvanizing and dacromet. Among them, the salt spray rust resistance of dacromet treatment far exceeds that of conventional galvanizing processes, which is especially suitable for use in strong corrosion environments such as coastal factories and chemical workshops. The product chain diameter covers the full range of specifications from 4mm to 32mm, and supports customized special pitches, special-shaped chain links and end connecting accessories according to customer requirements. It can be supplied in whole rolls in bare packaging or processed into complete sets of spreader finished products. Compared with ordinary manual welding or semi-automatic welding chains, our fully automatic welding products have higher dimensional consistency and more uniform stress on the whole chain, and the comprehensive service life can be increased by more than 35%. It is the core supporting and stockpiling product for industrial equipment manufacturers, lifting rigging dealers and mining engineering enterprises.

The product is widely used in core industrial fields such as industrial lifting, mining, ship matching and equipment manufacturing. In industrial lifting scenarios, it can be used as a supporting load-bearing chain for hand chain hoists and electric hoists, and can also be processed into single-leg and double-leg lifting slings for workshop equipment installation, heavy object hoisting and production line material transfer; in the mining field, it can be matched with underground lifting equipment, mine car connection traction and roadway support pulling, adapting to the harsh working conditions of humidity, dust and heavy load impact in mines; in ship matching scenarios, it can be used for deck cargo fixing, equipment pulling, gangway hanging and other auxiliary machine supporting operations; at the same time, it can also be used as the core transmission and load-bearing component of automated production lines, construction machinery and port machinery, providing reliable load-bearing support for various industrial equipment.

As an original factory with more than 20 years of professional chain manufacturing experience, we have been focusing on the R&D and production of industrial-grade chains since our establishment in 2003. The factory covers an area of about 10,000 square meters, equipped with multiple sets of advanced production and testing equipment such as fully automatic flash butt welding machines, continuous heat treatment production lines, positioning tensile machines and tensile testing machines. With a stable monthly production capacity of 120 tons, we can efficiently undertake order needs for large-volume industrial welded chains. We have set up an exclusive R&D and process team to continuously optimize welding parameters and heat treatment processes, and continuously improve the load performance and service life of products. At present, we have obtained 3 related invention patents and passed the ISO9001 quality management system certification. With stable product quality and reliable delivery capacity, we have established long-term stable supporting cooperative relations with many domestic and foreign industrial equipment manufacturers and lifting rigging brands.

We support the whole process of OEM and ODM customization services, and can customize exclusive specifications of heavy duty welded chain completely according to the technical drawings, physical samples or equipment adaptation needs provided by customers. Customers can customize special chain diameters, non-standard pitches, special-shaped chain link structures, and can also specify materials, strength grades and surface treatment processes. At the same time, it supports supporting processing of end accessories such as hooks, shackles and lifting rings to realize one-stop delivery of finished products. Mixed matching of different specifications and different surface treatment models is supported within a single MOQ order, flexibly meeting customers' multi-category stockpiling needs. Pre-production samples can be provided for customers to conduct dimensional verification and installation testing before mass production. The development cycle of customized samples is about 15 days, which can quickly respond to customers' new product development and equipment matching proofing needs.

We have established a full-process service system covering pre-sales, in-sales and after-sales, providing customers with full-process connection guarantee. In the pre-sales stage, professional business and technical personnel connect with customers' needs, and can provide selection suggestions and scheme design according to customers' working conditions, load requirements, and assist customers in matching the most suitable product specifications; in the in-sales stage, special personnel are arranged to follow up the order scheduling and production progress, and can provide on-site production picture feedback on demand to ensure that the goods are delivered on schedule; in the after-sales stage, exclusive connection personnel are responsible for quality feedback and problem handling after receipt. If the goods are damaged during transportation, we will verify the situation and negotiate solutions at the first time. For long-term cooperative agents and supporting customers, we can also provide value-added services such as technical support and priority production scheduling, and cooperate with customers to do a good job in local market service support.

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