Completed custom hydraulic systems, power units, and cylinders across mining, metallurgy, forging, oilfield, and offshore applications. Engineered to specification. Commissioned on-site.
July 03, 2026 Baishicheng Hydraulic designed a complete 120MPa ultra-high pressure hydraulic system with matching ultra-high pressure hydraulic cylinders for rebar sleeve cold extrusion connection applications.
This equipment is developed for civil engineering steel bar connection work, especially for projects requiring high-strength mechanical connection performance, such as nuclear power construction, building projects, bridge construction, and infrastructure engineering.
Unlike welding, binding, or ordinary threaded connection methods, this solution uses hydraulic cold extrusion technology to form a strong mechanical locking structure between ribbed rebars and connecting sleeves. The process does not require open-flame welding or steel bar threading, making it suitable for construction environments where stable connection quality and efficient site operation are important.
In reinforced concrete construction, the connection quality of ribbed steel bars directly affects structural reliability. Traditional connection methods may face several challenges, including unstable joint quality, pressure inconsistency, insufficient locking strength, or additional pre-processing requirements.
For this application, the equipment needed to provide:
Baishicheng developed the system around these operating requirements, using ultra-high pressure hydraulic transmission as the core power source.
The complete system consists of a 120MPa ultra-high pressure hydraulic power unit and matching ultra-high pressure hydraulic cylinders. The hydraulic system provides stable power output, while the cylinders convert hydraulic pressure into controlled radial extrusion force.
During operation, ribbed rebars are inserted into a dedicated connecting sleeve. The hydraulic system drives the ultra-high pressure cylinder to apply radial compression force to the sleeve. Under controlled pressure, the sleeve undergoes plastic cold deformation and tightly fits the longitudinal and transverse ribs of the steel bars.
This creates a strong mechanical interlocking structure between the sleeve and the rebars, forming an integrated rigid connection.
The entire process belongs to a pure mechanical cold-forming method and does not require:
This makes the equipment suitable for demanding construction and infrastructure applications where joint consistency and mechanical strength are important.
This 120MPa ultra-high pressure hydraulic equipment is suitable for rebar sleeve cold extrusion connection in:
For projects where traditional welding, binding, or ordinary threaded connections are not ideal, this hydraulic cold extrusion solution provides an alternative mechanical connection process.
Compared with traditional rebar welding, binding, and ordinary threaded connection processes, this 120MPa ultra-high pressure cold extrusion equipment provides stronger pressure reserve and more stable power output.
The equipment helps address common problems found in insufficient-pressure hydraulic systems, such as incomplete sleeve deformation, poor mechanical engagement, and inconsistent joint strength.
After forming, the rebar connection sleeve achieves close contact with the ribbed steel bar surface. The joint structure is designed to provide stable mechanical locking performance, supporting tensile, shear, and fatigue resistance requirements in demanding construction applications.
This project demonstrates Baishicheng’s capability in designing customized hydraulic systems for specialized high-pressure applications.
Instead of supplying only standard hydraulic components, Baishicheng develops complete hydraulic solutions based on the customer’s working process, force requirements, equipment structure, and application environment.
For high-pressure hydraulic applications, the company can provide:
This case also reflects Baishicheng’s ability to serve industries where hydraulic power, mechanical forming, and stable control performance must work together.
Qingdao Baishicheng Hydraulic Technology Application Co., Ltd. focuses on hydraulic technology development, hydraulic system manufacturing, hydraulic cylinders, hydraulic power units, hydraulic components, and integrated hydraulic equipment solutions.
The company supports industrial customers with customized hydraulic engineering for machinery, production equipment, automation systems, and specialized high-pressure applications.
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