Long Parabolic Leaf Spring Rolling Machine

CEG-IE Long Parabolic (Taper) Leaf Spring Rolling Machine is a rolling machine for manufacturing long parabolic leaf spring with fully automatic control by using advanced hydraulic servo-system and computer control system. This rolling machine is designed for the particular purpose of parabolic leaf spring manufacturing based on the research and analysis of technologies of existing rolling machines in domestic and international markets.

The Main Characteristics of this machine include:

• cast steel frame with increased rigidity (4.8 :1.0 compared with German similar product);
• increased bending resistance and stiffness by reducing roll support span (390 mm compared with 630 mm of British Hille rolling mill);
• high speed hydraulic servo-response by significantly reducing servo-drive mass ( 420 compared with 3550 for Hill rolling mill)
• automatic loading and feeding facilities significantly improves productivity by accurately feeding plate.
• full computer control providing self-fault-detection and overloading protection.
• The closed-loop servo control model accounts all main factors affecting the thickness, ensuring the rolling accuracy.
• leaf shape curves being able to be input into the computer, making it possible to have up to 10 forming segments with different curves including straight lines and any parabolas.

Main Specifications

Rolling force (Horizontal rolls): 1000 KN

Rolling force (Vertical rolls): 100 KN

Max. thickness of plate before rolling: 62 mm

Min. thickness of plate before rolling: 5 mm

Max. width of plate before rolling: 120 mm

Min. width of plate before rolling: 40 mm

Min. length of plate before rolling: 600 mm

Max. rolled length of plate: 1300 mm

Max. length of plate after rolling: 2600 mm

Min. thickness of plate after rolling: 2 mm

Thickness tolerance: ± 0.1 mm

Width tolerance: ± 0.5 mm

Side straightness: 2 mm/M

Rolling passes per end 1–8 passes

Forming segments 1–10 segments

Production capacity 1–3 ends/min

Max. forming slope 1:8 ratio

Overall Power Capacity: 45 KW