Assembling Quality Control： Self-inspected by the staffs during assembling; Re-inspected by the team leader; And finally inspected by sales person and engineers. --We keep Real-time communication between all departments.

Shaft: Solid steel shafts are being tooling twice with grinding machine to ensure final precision.

Bearing Inside The Roller • Having bearing inside the rollers to make machine run with less loading so that rollers not easy to damage. • Ensure the same speed between the rollers, and improve the forming accuracy • Bearings are helping to prolong machine life.

Zhongyuan R&D department is staffed with senior engineers who has more than 20 years experience in metal forming machine industry, So we are able to assist customers with professional designing and solution. 

This roll forming machine consists of uncoiler, coil sheet guiding device, double layer forming system, cutting device, Hydraulic station, PLC control system and support table. This double decking forming machine can produce two different models of roof products, It can choose any two combination. The products produced by Zhongyuan machines are used for a wide range of purposes, such as gardens, factories, hotels, exhibition centers, villas and so on.

Rollers Every rollers use CNC machine to polish and machining into designed rollers shape, it can improve rollers accuracy. Main Roller Material: 1). No.45 steel rollers are plated 0.05mm hard chrome to improve the hardness. Having bearing inside the rollers to make machine run with less loading so that rollers not easy to damage. • Ensure the same speed between the rollers, no speed difference between rollers, improve the forming accuracy. • Bearings are helping to prolong machine life.

Raw Material Quality Control: Steels bought from famous steel factory with inspection certificate.Other spare parts use famous brands. Use equipment to test whethter all the material can reach required hardness. Initial inspection by Warehouse staff, RE-inspection by CEO. Unqualified raw material will be returned.

Why choose Zhongyuan:20 years history in Metal roll forming machine industry, 25 years experienced engineers, Focus on machine quality with reasonable price, 59 sets processing equipment, including in 12 sets CNC tooling machines. Experienced technician can be sent to install machines abroad, 100+ sets of machines exported each year, 65+ countries using Zhongyuan Machines.