Qingdao Chifine Machinery Co., Ltd. is a professional manufacturer of manhole covers with over 20 years of experience in the industry. Our products are widely exported to Europe, South Asia, North America, Latin America, and Africa, among other regions. We take pride in delivering high-quality solutions tailored to our customers' needs.
**Product Information:**
Our manhole covers are designed for construction and public infrastructure use. They are manufactured to be smooth, free from defects such as sand holes, blow holes, or distortion, ensuring durability and safety.
**Material Options:**
- Ductile Iron: GGG500-7, 400-12
- Grey Iron: GG20
**Design Standards:**
- EN124: A15, B125, C250, D400, E600, F900
- A60005 for casting design
- Custom designs based on customer drawings or samples
**Manufacturing Process:**
- Green sand molding with hand-crafted techniques
- CNC machining and automated casting lines
**Coating Options:**
- Cold applied black bitumen
- No coating available
- Custom coatings upon request
**Accessories Available:**
Various types of accessories can be supplied to meet different project requirements.
**Quality Control:**
We ensure product quality through strict inspections at every stage:
1. Incoming material inspection
2. Work-in-progress inspection
3. Final product inspection
4. Random warehouse checks
All our operations comply with ISO 9001:2008 standards. We are equipped with advanced facilities including CNC machines, CMM inspection systems, spectrometers, and X-ray testing equipment to maintain top-tier quality.
**Key Features of Our Manhole Covers:**
- Material: Cast gray iron, ductile iron
- Shape: Round, square, rectangular, triangular
- Diameter: 200mm to 1200mm
- Weight: 7kg to 154kg (customizable)
- Packaging: Wooden pallets with plastic lining
- Annual Output: 10,000 tons
- Coating: Black bitumen or custom options
- Applications: Municipal engineering, traffic, pavement, electronics, telecom, cable, petroleum, chemical industry, drainage systems, and industrial facilities
**Advantages of Our Manhole Covers:**
- Available in all load classes: A15, B125, C250, D400, E600, F900
- Double-sealed, waterproof design
- Compliant with international standards: GGC50 (DIN 1693-73), QT500-7 (GB/T 1348-1988), 80-55-06 (ASTM A536), FCD500 (JIS G 5502-2001), 500/7 (BS 2789:1985)
- Free design services available
- OEM and ODM services supported
**Frequently Asked Questions (FAQ):**
**Q: Can I request a different packaging or shipping method?**
A: Yes, we can adjust the packaging and transportation method according to your request, though you will be responsible for any additional costs.
**Q: Can I expedite the shipment?**
A: It depends on whether we have sufficient inventory in stock.
**Q: Can I add my own logo to the product?**
A: Yes, we can customize the product with your logo if you provide the drawing. Additional costs may apply.
**Q: Can you produce based on my own drawings?**
A: Absolutely, we can manufacture products according to your specifications to meet your expectations.
**Q: What payment terms do you accept?**
A: We accept various payment methods including L/C, T/T, PayPal, and Escrow.
**Q: Why choose our products?**
A: We operate our own factory, allowing us to guarantee product quality and offer competitive pricing.
**Q: Do you offer OEM service?**
A: Yes, OEM services are welcome.
**Q: Can you make customized manhole covers?**
A: Yes, we can produce according to your drawings and specifications.
**Q: What are your payment terms?**
A: We offer flexible payment terms such as L/C, T/T, PayPal, and Escrow.
Feel free to contact us for more details or to discuss your specific requirements. We look forward to building a successful partnership with you!
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