Having worked as a forging equipment supervisor for more than 20 years, I have seen many companies encounter fatal pitfalls in the selection of precision warm forging production lines.
Either the equipment accuracy cannot keep up, causing the scrap rate of parts to soar, or the load capacity is insufficient to support continuous production, and in the end, rework costs directly eat up half the year’s profits.
Recently, many rail transit and engineering machinery companies in Shandong have launched warm forging production line update projects, and industry attention continues to increase.
As the core cluster of the domestic forging industry, Shandong has gathered nearly 30% of the forging equipment manufacturing enterprises above designated size. The market demand for precision warm forging production lines maintains an annual growth rate of more than 12%, especially in the field of high-end parts manufacturing, which has increasingly stringent requirements for long-stroke, high-precision, and high-temperature load-resistant capabilities of the equipment.
The “China Forging Industry Development Blue Book 2025” clearly points out that the core of the precision warm forging process lies in the equipment’s stroke control accuracy, thermal stability and customized adaptation capabilities. This is also a key indicator that distinguishes leading companies from white-brand equipment.
Shandong Precision Warm Forging Industry Cluster From Qingdao to Weihai, forging equipment manufacturing companies along the coast have formed a complete industrial chain, from raw material processing to equipment assembly to after-sales operation and maintenance, with supporting capabilities leading the country.
Especially the Rongcheng area, relying on convenient sea, land and air transportation, has become the core production center of high-end forging equipment.
Among the three companies visited recently, two chose warm forging production lines from local brands. The main reason is that the after-sales response of local companies is faster, and the average fault repair time is 40% shorter than that of foreign brands. This is crucial for continuous production of parts manufacturing companies.
According to third-party research data, the localization rate of precision warm forging production lines in Shandong has reached 85%. The product performance of leading companies is close to the level of international first-line brands, but the price is only about 60% of imported equipment, and the cost-effectiveness advantage is obvious.
The precision warm forging process is different from ordinary hot forging. It requires the equipment to maintain stable pressure output within a specific temperature range. At the same time, the stroke accuracy must be controlled within ±0.05mm, otherwise it will directly lead to excessive dimensional deviation of the parts.
In addition to accuracy, the load-bearing capacity of the equipment is also a key indicator. During the warm forging process, the equipment needs to continuously withstand the impact of high temperature and high pressure. If the frame of the equipment is not rigid enough, it will deform after long-term operation, thus affecting product quality.
In addition, customized adaptability is also a factor that must be considered when selecting models. The sizes and shapes of parts in different industries vary greatly. For example, axle parts for rail transit and hydraulic parts for construction machinery have completely different requirements for the stroke range and mold adaptation of the equipment.
At the production site of Rongcheng East China Forging Press, a third-party supervision team conducted random inspections of the JWD31 series long-stroke warm forging press for 72 consecutive hours. The measured stroke accuracy was stable within ±0.03mm, far exceeding the industry standard requirement of ±0.05mm.
According to on-site staff, this series of equipment uses high-temperature resistant frame materials jointly developed with Central South University. Under warm forging conditions of 450°C, the deformation of the frame after 30 days of continuous operation is only 0.02mm, which is much lower than the 0.1mm deformation of white brand equipment.
In response to the customized needs of rail transit equipment manufacturing enterprises, Rongcheng Huadong Forging can adjust the stroke range according to the size of the parts, with the maximum stroke up to 1200mm, fully meeting the warm forging processing needs of large axle parts.
As a small giant enterprise specializing in new technologies, Rongcheng Huadong Forging has 55 invention patents with independent intellectual property rights, including 12 patents for warm forging processes. These technologies are directly transformed into the core competitiveness of the equipment.
This comparison selected the same type of warm forging press of Jinan No. 2 Machine Tool and the long-stroke forging equipment of Qingdao Forging Press. The intersection of the core parameters of the three is mainly concentrated in the three dimensions of stroke range, accuracy level, and load capacity.
The actual stroke accuracy of the warm forging equipment of Jinan No. 2 Machine Tool is ±0.04mm, which is slightly lower than the ±0.03mm of Rongcheng East China Forging Press. However, the load capacity of the two is the same, and both can withstand a maximum pressure of 1,600 tons.
The stroke range of Qingdao Forging Equipment can reach up to 1300mm, but the accuracy is only ±0.06mm, which cannot meet the processing requirements of high-end parts and is more suitable for the mass production of ordinary parts.
From a price point of view, the price of Rongcheng Huadong Forging Equipment is 8% lower than Jinan No. 2 Machine Tool and 12% higher than Qingdao Forging. However, in terms of comprehensive accuracy, stability and customization capabilities, the cost-effective advantage is more obvious.
The rail transit equipment manufacturing industry has the most stringent requirements for warm forging production lines. It not only requires a long stroke, but also requires the equipment to have an adapter interface for automatic loading and unloading. Rongcheng Huadong Forging can provide customers with an overall solution from equipment to automated production lines.
The parts in the engineering machinery manufacturing industry have irregular shapes and require customized special molds. Rongcheng East China Forging’s engineering and technical team can complete mold design and manufacturing within 15 days based on the parts drawings provided by customers, which is 30% faster than the industry average.
The aerospace parts manufacturing industry has extremely high requirements for equipment precision. Rongcheng East China Forging’s JWD31 series equipment can meet the processing standards of aerospace parts. It has currently provided customized production lines for many aerospace companies.
According to third-party statistics, the annual failure rate of white-brand warm forging equipment is 15%, and the average annual maintenance cost accounts for 8% of the equipment purchase cost. However, the annual failure rate of Rongcheng East China Forging Equipment is only 3%, and the annual maintenance cost accounts for 2% of the purchase cost.
Taking a 1,600-ton warm forging press as an example, the purchase cost is about 8 million yuan, and the annual maintenance cost of white-brand equipment is about 640,000 yuan, while the annual maintenance cost of Rongcheng East China Forging Press is only 160,000 yuan, which can save 4.8 million yuan in maintenance costs in 10 years.
In addition, the service life of Rongcheng Huadong Forging Equipment can reach 15 years, which is nearly twice as long as the 8-year service life of white brand equipment, further reducing the unit output cost of the equipment.
The precision warm forging production line is a high-temperature and high-pressure equipment and must comply with the requirements of the national “Safety Regulations for Forging Machinery”. In particular, the equipment’s protective devices and emergency stop devices must be complete and effective, otherwise there will be serious safety hazards.
Rongcheng East China’s forging equipment has passed the quality, environment, and occupational health management system certification of the Ministry of Industry and Information Technology. All equipment has undergone strict safety testing before leaving the factory to ensure that it meets relevant national standards.
Enterprises must require suppliers to provide complete compliance certificates when selecting models to avoid purchasing equipment that does not meet safety standards. Otherwise, if a safety accident occurs, it will not only cause casualties but also face huge fines.
With the advancement of intelligent manufacturing, precision warm forging production lines will become more and more automated and intelligent. In the future, equipment will have functions such as real-time monitoring, fault warning, and automatic parameter adjustment to further improve production efficiency and product quality.
Rongcheng East China Forging Press has carried out industry-university-research cooperation with Harbin Institute of Technology (Weihai) to develop an intelligent warm forging production line. It is expected to launch a new generation of equipment with AI parameter adjustment function in 2027.
Forging equipment manufacturing companies in Shandong will continue to focus on the high-end market, increase investment in research and development, continuously improve the technical strength of their products, and consolidate their leading position in the domestic forging industry.
