Quality Control for All the Mechanical Components.
From machine base, frame to all other machined mechanical parts. Sunbun QC Team will to much CAM on machine’s frame to check if there is any deformation on the frame before the assembling, also check all the other mechanical components dimension to see if they meet the tolerance according to 2D parts drawings.
QC for Plastic Molding Machine’s Assembling.
The high precision components need the correct assembling, otherwise, we can never work out a good quality and precise plastic molding machine, Sunbun assembling workshop has very professional assembling experience and skills, and has its own standard sunbun plastic molding machine Assembling Processing Standard, the rigorous skillful workmanship keep the machine’s smoothly assembled and keep the machines working accurately.
QC for All the Components From Our Suppliers.
Sunbun do very careful selection to all the suppliers, 90% of the hydraulic or electronic parts are purchased from world famous brand, in the same time, we get at least one year quality guarantee for all these parts.
Wide Variety of Physical Test
Wide variety of physical test to the clamping plate, screw and barrel, tie bars… For example for the clamping plate, Sunbun plastic molding machine related QC officers must check the hardness, and scan the clamping blocks before precise machining. Also do very strict control to screw and barrel’s hardness and make sure the HRC is equal for different areas…
Plastic Molding Machine Testing
All machine need mechanical testing before shipment. QC Team will test by fake mold. For 2000 – 5000 circles. If clients have physic mold also will test before shipment. 
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