OEM/Customized Cast Iron Hinged/Sealed Manhole Cover for Grating/Drainage (B125/C250/D400)

Product Details:
1. Materials & Standards: Grey iron, ductile iron, malleable iron, carbon steel, alloy steel (high manganese steel, high chromium steel), stainless steel, aluminum alloy, copper alloy.
2. Molding Process: Green sand, resin sand, waterglass sand, lost wax/silicon sol, or die casting.
3. Melting Equipment: Cupola furnace, medium frequency induction electric furnace, or electric arc furnace.
4. Casting Inspection: Direct-reading spectrometer, metallographic analysis, magnetic particle inspection, ultrasonic testing, X-ray inspection, mechanical property testing.
5. Heat Treatment: Aging oven, electric furnace, normalizing, quenching and tempering equipment.
6. Surface Treatment: Shot blasting, polishing, chrome plating, zinc plating, powder coating, etc.
7. Machining Equipment: CNC centers, NC lathes, NC milling machines, NC boring machines, drilling machines, and other standard machines.
8. Inspection Facilities: CNC 3D inspection systems and more.
9. Industrial Categories: Tractor, heavy-duty truck industry, car industry, farm machinery, construction engineering machinery, power industry, elevator industry, valve industry, general machinery, and others.
10. Part Weight Range:
- Grey Iron Casting: Up to 15,000 kg
- Ductile Iron Casting: Up to 4,000 kg
- High Manganese Steel Casting: Up to 5,000 kg
- Carbon Steel & Alloy Steel Casting: Up to 10,000 kg
- Aluminum/Copper Alloy Die Casting: From 8g to 12kg
- Investment/Lost Wax Casting: Up to 80kg
11. Representative Products: Machine bed, machine table, bearing stand, housing, casing, cover, valve body, pump body, big ring gear, big pulley, big sheave, bolster, frame, rear frame, front frame, engine block, mill ball, hammer, jaw plate, bucket tooth, front idler, excavator sprocket, link rod, bucket link rod, barrel liner, grate plate, top grate, open grate, front wall, and rack, etc.



1) Specifications
1: Specialized in producing various metal parts and mold parts, CNC machining, and metal stamping, forging, and casting.
2: All international standard materials available, including carbon steel, alloy steel, stainless steel, etc.
3: A wide range of surface treatments available, such as powder coating, hard anodizing, zinc plating, plating, oxidation, blasting, painting, anodizing, heat treatment, etc.
4: We have good cooperation with many companies and use outsourcing for some factories and equipment, like heat treatment and large boring machines, allowing us to handle large orders.
5: Sample is acceptable for confirmation before mass production.
6: Raw material is checked before mass production.
7: Technicians self-check during production, and engineers do spot checks to ensure quality.
8: QC inspects after the product is completed.
9: We choose the best packaging method to prevent damage during transportation.
10: Salesmen trained in technical knowledge conduct spot checks before shipping.
11: Main equipment includes CNC lathe, automatic lathe, hand lathe grinder, thread rolling machine, tapping drilling machine, boring machine, and CNC machining center.
12: Advanced measuring and testing equipment include projecting apparatus, roughness tester, hardness tester, concentricity tester, etc.
13: We offer total solutions to customers' ideas with in-house production/assembly and outsourcing programs.
14: We provide engineer consultation for design improvements and cost savings.
15: Inspection reports and material test certificates are available upon request.
16: IPQC inspects at every step; 100% inspection before shipment using micrometers, height gauges, projector measuring machines, coordinate measuring machines (CMM), etc.
17: Can meet DIN, JIS, ASTM, AISI, BS, GB standards.
18: We believe "Honesty is Time, Conscience is Quality."
Details:
A. Item: Manhole Cover
B. Drawing: As per your requirement
C. Surface: Blackening, galvanizing, plating, painting, etc.
D. Material: QT, iron, steel
E. Product: Manhole cover, pipe fitting, flange, machine parts, pump parts, etc.
F. Technology: Sand casting
G. Advantages: On-time delivery, based on material requirements
H. Packing: Wooden case or as per your requirement
I. Delivery: Within 20 days after receiving final confirmation.


2) Manufacturing Process
1. Sample or drawing from the customer
2. Tooling proposal and discussion
3. 3D tooling design
4. Tooling production
5. Rough parts manufacturing
6. CNC machining
7. Fitting and finishing
8. Tooling measurement and checking
9. Assembly
10. Trial production
11. Correction
12. Final trial
13. Sample inspection
14. Sample approval by the customer
15. Tooling approval
16. Ductile iron sand casting



3) Company Profile:
We mainly produce casting parts, machined parts, and other products. Our Import and Export Department has extensive experience in foreign trade, and our products are mainly exported to the United States, Denmark, Italy, Russia, Australia, and other countries.

4) Typical Products:
Scaffold fittings, template parts, railway fittings, ring flange, electromagnetic steel cover, piston, pressure plate, center plate, wear plate, cylinder, impeller, disc, etc.
5) Quality Control




Quality First, Price Best, Service Foremost! We assure you of our best services at all times!

Manhole Cover
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We can produce all kinds of manhole covers according to customer drawings or samples. OEM and ODM are welcome.

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SHANGQIU FLAT WORLD MACHINERY CO.,LTD , https://www.sqflatworldmachinery.com