Cost-Effective Ductile Iron Manhole Cover with Powder Coating Finish

• Customization: Available
• After-sales Service: Customization
• Warranty: 2 Years
• Model NO.: M10
• Material: Steel
• Shape: Round
• Certification: ISO, IATF 16949
• Processing: Precision Casting
• Surface Treatment: Powder Coated/Painting/Sandblasting
• Surface Roughness: Ra0.8~Ra12.5
• Pattern: Customization
• Size: Standard and Non-Standard
• Lead Time: 20-30 Days
• Heat Treatment: Quench and Temper
• Transport Package: Customize
• Specification: According to product specifications
• Trademark: Customer Demands
• Origin: China
• Production Capacity: 50000

Product Description

Product Description

Name	Size (mm)	Unit	Weight (kg)	Remarks
Manhole Cover for Water Meter	400*600	Set	20	With frame
Manhole Cover for Water Meter	600*600	Set	40	With frame
Manhole Cover for Water Meter	630*1080	Set	90	With frame
Double-lid Water Meter Manhole Cover	400*600	Set	30	With frame
Double-lid Water Meter Manhole Cover	1000*500	Set	55	With frame
Double-lid Water Meter Manhole Cover	1300*480	Set	70	With frame
Double-lid Water Meter Manhole Cover	1500*450	Set	80	With frame
Single Grating	300*500	Piece	7	For greening and bathhouse use
Single Grating	400*600	Piece	15	For drainage ditch
Single Grating	400*600	Piece	20
Single Grating	400*600	Piece	25
Complete Set of Gratings	400*400	Set	22	For indoor installation under 10 tons
Complete Set of Gratings	400*600	Set	30
Complete Set of Gratings	400*700	Set	40
Complete Set of Gratings	450*750	Set	30
Complete Set of Gratings	450*750	Set	35
Complete Set of Gratings	450*750	Set	40
Complete Set of Gratings	450*750	Set	50
Complete Set of Gratings	450*750	Set	60
Complete Set of Gratings	700*700	Set	45
Complete Set of Gratings	700*1500	Set	75

Name	Diameter (mm)	Unit	Weight (kg)	Remarks
Round Manhole Cover	600	Set	30	The patterns and central characters of the manhole cover can be customized according to the user's needs, such as for sewage, rainwater, fire protection, water supply, etc.
Round Manhole Cover	600	Set	35
Round Manhole Cover	600	Set	60
Round Manhole Cover	625	Set	30
Round Manhole Cover	630	Set	30
Round Manhole Cover	640	Set	75
Round Manhole Cover	650	Set	35
Round Manhole Cover	650	Set	40
Round Manhole Cover	650	Set	70
Round Manhole Cover	670	Set	35
Round Manhole Cover	670	Set	40
Round Manhole Cover	680	Set	40
Round Manhole Cover	680	Set	60
Round Manhole Cover	680	Set	70
Round Manhole Cover	690	Set	50
Round Manhole Cover	700	Set	45
Round Manhole Cover	700	Set	50
Round Manhole Cover	700	Set	70
Round Manhole Cover	700	Set	75
Round Manhole Cover	740	Set	80
Round Manhole Cover	740	Set	85
Round Manhole Cover	740	Set	105
Round Manhole Cover	760	Set	120
Double - layer Round Manhole Cover	700	Set	60
Double - layer Round Manhole Cover	700	Set	70
Double - layer Round Manhole Cover	900	Set	100

Detailed Photos

Anti-noise
The surfaces where the manhole cover meets the frame are meticulously machined to ensure a snug, noiseless fit. This precise engineering ensures tranquility, as no unwanted sounds disrupt the environment.

Anti-slip
The manhole frame is designed with innovative diamond-shaped block patterns that enhance grip. Its structure features interconnected rings, while T-shaped protrusions on the ring's opening surface significantly increase the friction coefficient. This intelligent design ensures the asphalt base material and the ring opening achieve superior friction, even when placed on auxiliary roads, preventing slips and enhancing safety.

Anti-displacement
The manhole frame is securely anchored to the ground with robust anchor bolts, visible as small round holes in the illustration for fixing purposes. This secure installation ensures that during construction, especially with road rollers, the manhole cover and frame remain perfectly aligned, adhering to construction standards and preventing any accidental displacement.

Anti-falling
A revolutionary five-prevention manhole cover features an internal anti-falling grid, meticulously designed to prevent accidents. This enhances safety by ensuring that neither people nor objects are at risk of falling into the manhole, even if the cover is somehow displaced.

Anti-theft
Underneath the manhole cover, a sophisticated anti-theft hidden box and an opening folding plate replace the traditional chain. This innovative solution ensures complete theft prevention while addressing the issue of rust from cavitation and water erosion, offering a long-lasting, durable alternative.

Company Profile

Qingdao Starise Metal Technology Co., Ltd. stands as a beacon of excellence in the integration of industry and trade, pioneering the research, development, production, and international trade of precision casting parts. With a robust legacy spanning over 30 thriving years, this company leverages its wholly-owned factory to deliver exceptional quality. Situated on a sprawling 47,000 square meters, including 10,000 square meters dedicated to high-standard production workshops, it boasts an impressive annual capacity exceeding 30,000 tons of precision cast steel parts. These state-of-the-art products have reached the shores of over 20 countries and regions across Europe, America, and Asia, marking a significant footprint in the global market.


Our History

1. Founding Period (1995-1998):
Established in 1996 in Pingdu City, Qingdao, China, Qingdao Starise Metal Technology Co., Ltd. embarked on its journey, channeling its efforts into delivering top-notch precision casting solutions tailored for the agricultural machinery and automotive axle sectors. This initial phase focused on the production of small-scale precision castings utilizing the traditional silica gel precision casting methodology.

2. Technological Accumulation and Expansion (1998-2014):
In 1998, the company made a strategic leap by embracing advanced investment casting and sand casting technologies, thereby unlocking the potential to produce medium and large-scale precision castings. The game-changing ISO9001 certification in 2006 was a testament to its unwavering commitment to quality and reliability. From 2009 to 2014, the company experienced a massive expansion, with the addition of new production lines and the adoption of cutting-edge casting processes, significantly boosting its capacity to cater to the growing needs for diverse, multi-batch, and customized manufacturing solutions.

3. Brand Marketing (2016-2020):
2016 marked a new era as the company embarked on a journey to elevate its brand by actively participating in prestigious domestic and international exhibitions, enhancing brand recognition globally. Expanding its footprint further in 2017, it forged strategic long-term partnerships with international clients. By 2020, the company had not only solidified its market presence but also developed several patented technologies, enhancing both product precision and quality.

4. Technological Innovation and Sustainable Development (2018-2024):
In 2018, a significant milestone was achieved with the establishment of a cutting-edge research and development center, focusing on pioneering new materials and methodologies. The year 2019 saw the development of an eco-friendly precision casting process, dramatically reducing production-related pollution and refining the quality of both surface and internal casting defects. Recognition as a national high-tech enterprise in 2020 underscored the company's relentless dedication to technological innovation.

5. Intelligent Manufacturing and Future Vision:
The global pandemic in 2019 posed numerous challenges, yet the company swiftly adapted its market strategies, enhancing its online marketing and service capabilities to maintain a robust growth trajectory. In 2021, the launch of the intelligent manufacturing initiative marked a transformative era, integrating automation and IT to bolster both production efficiency and managerial prowess.

6. Looking Ahead:
Guided by a steadfast commitment to innovation-driven development, the company aspires to cement its leadership status within the global precision casting industry, continuously exploring new horizons of excellence.

Materials We Cast

Material	Carbon Steel	Ductile Iron	Alloy Steel	Stainless Steel	Manganese Steel
Material Grade/Designation	ZG200-400 ZG230-450 ZG270-500 ZG310-570 ZG340-640 Q235	QT350-22L QT400-18 QT400-18L QT450-10 QT500-7 QT600-3 QT700-2 QT800-2 QT900-2 QTD800-10 QTD900-8 QTD1050-6 QTD1200-3 QTD1400-1	ZG20Mn, ZG30Mn ZG40Mn, ZG20Mn2 ZG35CrMnSi, ZG40Cr ZG35CrMo, ZG42CrMo AH36,EH36,FH36 Q420qE,Q500qE 16MnDR 09MnNiDR ZGD410-620 ZGD535-720 ZGD650-830 ZGD730-310 ZGD840-1030 ZGD1030-1240 ZGD1240-1450	06Cr19Ni10 022Cr19Ni10 06Cr17Ni12Mo2 022Cr17Ni12Mo2 06Cr18Ni12Mo2Cu2 015Cr21Ni26Mo5Cu2 12Cr13 30Cr13 68Cr17 022Cr12 10Cr17 019Cr19Mo2NbTi 022Cr23Ni5Mo3N 022Cr25Ni7Mo4N 05Cr17Ni4Cu4Nb 07Cr15Ni7Mo2AL	ZGMn13-1 ZGMn13-2 ZGMn13-3 ZGMn13Cr2 Q355B Q460C 30Mn2Cr10 40Mn18Cr3 ZGMn18Cr2
Standard	AISI - American Iron and Steel Institute ASTM - American Society for Testing and Materials DIN - Deutsches Institut für Normung BS - British Standards ANSI - American National Standards Institute JIS - Japanese Industrial Standards AFNOR - Association Française de Normalisation AS - Standards Australia ASME - American Society of Mechanical Engineers EN--European Norm GB--National Standard Chinese
Note	Apart from the above materials, we can cast based on customers' specifications

Certifications

Packaging & Shipping

Packaging: Experience unmatched protection with our meticulous packaging processes, ensuring superior preservation and safety of each product throughout its journey.

1. Rust Prevention Treatment: Our advanced rust prevention treatment involves a premium application of high-quality rust preventives on cast steel parts, forming a robust anti-rust shield. This sophisticated process offers exceptional protection against rust during both transit and storage.
2. Buffer Protection: For components susceptible to impacts, we employ superior cushioning materials like foam boards and sponges, providing a gentle yet resilient shield against potential transportation-induced damage, safeguarding product integrity.
3. Outer Packaging: Secure your investments with our thoughtfully designed packaging solutions. Small cast steel parts are encased in durable wooden boxes, securely filled to eliminate movement, while larger parts are stabilized with tailored metal or wooden frames. For added peace of mind, container shipping is available to ensure absolute safety during transit.

Shipping: Our shipping solutions are tailored to meet your specific needs, ensuring your products reach their destination with the utmost efficiency and reliability.

1. Logistics Selection: Benefit from our strategic alliances with leading logistics companies, offering a versatile array of transportation options—road, rail, sea, or air freight. Each is meticulously chosen to align with your requirements, guaranteeing timely and secure delivery every time.
2. Delivery Timeliness: Experience punctuality with our commitment to timely deliveries. Standard orders are dispatched within 30 working days post-inspection, while urgent requests receive expedited treatment, with flexible scheduling to prioritize both production and delivery.
3. Logistics Tracking: Stay informed with our state-of-the-art real-time tracking service. Seamlessly monitor your shipment's progress using order or logistics tracking numbers on our website or partner platforms, ensuring you are always aware of your goods' location and expected arrival time.

FAQ

1. Casting process optimization category
Q: How to solve the problem of cracking in thin-walled die-casting products?
A: Suggest controlling the proportion of recycled materials to ≤ 30%, calculating the mold retention time based on a wall thickness of 1mm/3s, controlling the ejection delay within 0.5-2 seconds, and optimizing the mold cooling system.

2. Equipment and operation category
Q: How to handle emergency situations when the injection head is stuck in the goose neck area?
A: After the equipment cools down, try rotating the hammer head. If it cannot be rotated, replace the driver cylinder; Long term solution: It is recommended to upgrade the material of the material pot and regularly clean impurities.

3. Q: Is there intermittent discharge during material feeding?
A: Check if the nozzle is blocked (the gray section indicates blockage), which can increase the nozzle temperature by 5-10 ºC, shorten the nozzle departure time by 0.1-0.2 seconds, and moderately reduce the flow rate of the fixed mold cooling water.

4. Materials and Surface Treatment
Q: Does the casting have pattern defects after anodizing?
A: Adjust the uniformity of injection oil spraying and optimize the high-speed injection switching position; Regularly check the copper ion concentration in the oxidation tank (recommended ≤ 20ppm)
5. Mold maintenance category
Q: What should I do if the mold frequently sticks to the material?
A: Comprehensive solution: Reduce pouring temperature by 20-30 ºC Use polymer release agent Polish the surface of the mold cavity (use with caution for nitriding molds) Optimize sprue design to reduce metal liquid flushing