Square Round cast Manhole Cover Grating
A15 cover sizes: 244x244mm, 300x300mm, 400x400mm, 500x500mm, 600x600mm, etc. We have ready moulds to produce and custom-made is available.
Lead Time:5-10 Work Days
1.Sand casting&Gravity casting&Low pressure die casting:
AC-42100/EN AC-42200/EN AC-43000/ EN AC-43200/EN AC-43300/EN
AC-43400/EN AC-44200/EN AC-44300/EN AC-46000/EN AC-46200
2.High pressure die casting:
3.CNC machining casting: 6061-T6/6063-T6
Sand casting, Gravity casting, high pressure die casting,low pressure die casting and CNC Machining casting.
Equipment of Casting
1. High pressure die casting machining:125T/180T/250T/280T/500T/800T/1250T
2. Gravity casting machine: 5 production lines
3. Low pressure die casting machining: 1 production line
4. Sand casting machine: 6 production lines
5. Degassing equipment and opportunities to refine the material
6. Machining: 5Sets CNC Machines;3 sets Milling machines; 3 setsTurning machines; 10 sets drill and tap machines
spectrometer, tensile test machine, hardness test machine,CMM dimension report
ASTM, DIN,JIS, EN, ISO, GB standards
Pro/E,UG, Solidworks, Auto CAD, PDF
CNC turning, milling, drilling, grinding, cutting, reaming and threading
Polishing, sand blasting, heat treatment, painting, powder coating, anodizing,electroplating, Chrome plating, mirror polishing.
All kinds of aluminum casting: include automotive parts, railroad parts,medical parts, marine parts, lighting parts, pump body, valve parts,architectural parts and furniture parts so on
During many of the procedures and upon completion of all the machining operations, Dongrun Casting performs quality checks to ensure the manufactured part meets the exact customer specifications.
We use a variety of testing instruments including "go or no-go" gauges (to determine if threads or other dimensions holes are correct), micrometers, height gauges, calipers, thread gauges, bore gauges and ring gauges. We test and certify these gauges regularly.
We also have a specialized unit for pressure testing our castings. It measures pressure loss for castings that will be used in liquid or air applications. This testing and certification is also available to our customers with their shipped product.
Dongrun Casting also has full CMM (Coordinate Measuring Machine) capabilities and can supply this data to our customers with their 1st article reports. This CMM has greatly reduced our time in measuring new and full production parts and allows us to measure dimensions that would be difficult otherwise.
Specific casting control measures include: Heat Treat Certification, Hardness Testing, First Article Inspection.
About the raw material, it is very important for casting. Before casting, we will do testing bar to check the Chemical composition and Mechanical properties. In our raw material warehouse, we are doing the marks on each type material. Free from the mistake when the workers melt the raw material.