The steel bar upsetting machine is a special and key piece of equipment for steel bar connection construction. It is mainly used for end upsetting processing of ribbed steel bars in construction, bridge, tunnel, high-speed railway infrastructure and other projects. Adopting the hydraulic cold upsetting process to thicken and expand the ends of steel bars, the machine cooperates with thread rolling machines to complete straight thread threading connection. It effectively improves the tensile strength and connection stability of steel bar joints, serving as essential equipment for standardized modern steel bar connection construction.
This machine is applicable to the processing of national standard deformed steel bars with diameters ranging from Φ16mm to Φ32mm. Equipped with a fully automatic hydraulic drive structure, it features fast upsetting forming speed, stable pressure and high forming consistency. Different from the traditional welding lap joint process, the cold upsetting processing requires no open fire or welding seams and will not damage the mechanical properties of steel bar base materials. The processed steel bar ends feature continuous fiber structure and dense texture, and the joint strength is higher than that of the steel bar base material, thoroughly solving the industrial pain points of welded joints such as brittle fracture, easy corrosion and low qualification rate.
Equipped with an intelligent hydraulic control system, the machine realizes automatic pressure stabilization and overload pressure relief, and automatically matches the upsetting pressure and stroke according to different steel bar specifications without repeated manual adjustment. It is easy to operate, allowing a single worker to complete the whole process of feeding, positioning, upsetting and material returning. New operators can be competent for the operation after simple training. With high forming accuracy, the machine produces upsetting sections with uniform size and flat end faces, providing a standard processing foundation for the subsequent thread rolling process and greatly improving the qualification rate of threaded heads.
The machine body is integrally welded with thickened steel plates, featuring a stable structure, excellent shock resistance and durability, which adapts to long-term high-load continuous operation on construction sites. The core hydraulic accessories are of reliable quality, with low operating noise and low failure rate. It supports convenient daily maintenance and simple replacement of wearing parts, effectively reducing construction costs and downtime. Meanwhile, the machine is equipped with multiple safety protection devices to effectively eliminate potential safety hazards such as jamming and overpressure, ensuring higher construction safety.
With the advantages of safety, environmental protection, high strength, fast speed and stable finished product quality, the steel bar upsetting machine has completely replaced the traditional welding lap joint process. It effectively saves steel bar raw materials, shortens the construction period and improves project construction quality. Widely applied in key projects such as large-scale buildings, bridges and rail transit, it is the core equipment for standardized straight thread connection construction of steel bars in modern engineering.
