All castings shall be smooth and free from sand holes, blow holes, distortion or any other defects.
With annual production capacity of 35,000 tons, our major equipments include 2 sets of automatic moulding lines, 4 sets of 5-ton cupola, 2 sets of load test machines, 1 epoxy coating machine, 3 sets of core-shooting machines, 3 sets of shot blasting machines, 2 sets of water pressure machines, 2 Machining workshops and all necessary chemical and physical test facilities.
GUARANTEE: SYI Foundry will replace any Heavy Duty covers/Gratings, that has been properly installed and broken in normal use, free of charge after receipt of the broken casting. Design & Production Facility & Quality Control : Design Production Facility Besides traditional hand moulding, we also use Automatic Moulding Lines to manufacture Manhole covers for better surface condition and dimension accuracy. Quality Control Quality Control Department ↓ ↓ ↓ Raw Material Inspection Raw Material inspection including chemical components analysis, tensile strength test and etc. Quality Control Groups Dimensions Test Manufacture process Inspection Process Inspection including sand cleaning, assembling, packing and coating Final Inspection including delivery marks and etc. Particular Tests for different products, such as Load Test, Hydro Test and etc. Laboratory Chemical Components Microstructure Test Tensile Strength Permanent Set and Load Test
An independent Quality Control is supervised directly by General Manager and responsible for following duties:
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