Customizable Ductile Iron Manhole Cover for Cost-Effective Solutions

• 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 contact surfaces of the manhole cover and its sturdy frame are meticulously machined to ensure an impeccable fit. This precise engineering eliminates any possibility of noise disturbance, offering a serene and peaceful environment.

Anti-slip
The surface of the manhole frame boasts expertly cast diamond-shaped block patterns. Ingeniously designed with interconnected rings, it features strategically placed T-shaped protrusions to significantly boost the friction coefficient. This design ensures remarkable traction between the asphalt base and ring opening, rendering it effectively slip-resistant even on auxiliary roads.

Anti-displacement
Anchored securely to the ground with expertly placed bolts, the manhole frame maintains perfect alignment during construction. Even under the pressure of road rollers, the integrity of the manhole frame is preserved, ensuring flawless and standard construction with zero displacement.

Anti-falling
Innovatively designed with a robust internal anti-falling grid, this advanced manhole cover safeguards against accidents. It effectively prevents individuals or objects from falling through, offering comprehensive protection even if the cover is dislodged.

Anti-theft
Ingeniously equipped with an anti-theft hidden box and a folding plate beneath the cover and frame, this design replaces traditional chains. It provides exceptional security and effectively eradicates rust issues caused by cavitation and water exposure, ensuring long-lasting durability and peace of mind.

Company Profile

Qingdao Starise Metal Technology Co., Ltd. stands as a beacon of excellence in the field of precision casting, seamlessly blending industry expertise with cutting-edge trade initiatives. Specializing in the intricate R&D, meticulous production, and expansive global trade of precision casting parts, the company is a powerhouse with more than three decades of profound industry engagement. Our modern production facility spans an impressive 47,000 square meters, including 10,000 square meters of state-of-the-art production workshops, boasting an annual production capacity exceeding 30,000 tons of premium precision cast steel parts. Our unparalleled products reach over 20 countries and regions across Europe, America, and Asia, embodying quality craftsmanship that transcends borders.


Our History

1. Founding Period (1995-1998):
Founded in 1996 amidst the bustling cityscape of Pingdu, Qingdao, China, our company embarked on a mission to deliver exemplary precision casting solutions tailored for the agricultural machinery and automotive axle sectors. In this foundational era, we mastered the art of manufacturing small-scale precision castings, leveraging the time-honored silica gel precision casting technology to set the standard in quality and precision.

2. Technological Accumulation and Expansion (1998-2014):
The year 1998 marked a pivotal milestone as we embraced advanced investment and sand casting technologies, propelling us into the realm of medium and large-scale precision castings. The prestigious ISO9001 certification in 2006 attested to our unwavering commitment to quality and reliability. From 2009 to 2014, a period of strategic expansion unfolded, with the enhancement of production facilities, the addition of cutting-edge production lines, and the adoption of efficient casting processes, thereby augmenting our capacity to cater to the demands for diverse, multi-batch, and bespoke product manufacturing.

3. Brand Marketing (2016-2020):
Stepping into 2016, we embarked on an ambitious journey of brand fortification, actively partaking in domestic and international industry expos to amplify brand visibility. By 2017, our global market presence had been solidified, forging enduring partnerships with international clients. The advent of 2020 heralded the development of numerous patented technologies, which significantly elevated product precision and quality, cementing our reputation as a leader in innovation.

4. Technological Innovation and Sustainable Development (2018-2024):
In 2018, we made strategic investments in establishing a dedicated R&D center, driven by the pursuit of novel materials and processes. The subsequent year witnessed the development of an eco-friendly precision casting process that not only curtailed pollution emissions but also markedly enhanced the quality of surface and internal defects in our castings. Our designation as a national high-tech enterprise in 2020 stood as a testament to our groundbreaking achievements in technological innovation.

5. Intelligent Manufacturing and Future Vision:
In the wake of the global pandemic challenges in 2019, we astutely realigned our market strategies, fortifying our online marketing and service capabilities to uphold consistent business growth. The year 2021 saw the inception of our intelligent manufacturing initiative, ingeniously blending automation with information technology to optimize production efficiency and management prowess.

6. Looking Ahead:
Guided by a steadfast commitment to innovation-driven growth, we are poised to redefine industry benchmarks as we aspire to ascend to the zenith of the global precision casting arena.

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

1. Rust Prevention Treatment: Each piece of our premium cast steel parts is expertly treated with top-tier rust preventives, creating a robust, dense anti-rust film. This meticulous process ensures exceptional rust protection during both transit and storage, safeguarding the integrity and longevity of our products.
2. Buffer Protection: For those parts that are more susceptible to bumps and knocks, we employ superior buffer materials like foam boards and sponges. These are carefully wrapped around the items, offering an enhanced protective layer that prevents collision damage during the transportation journey.
3. Outer Packaging: Smaller cast steel parts are securely nestled in durable wooden boxes, filled with ample stuffing to eliminate any shaking during transit. Meanwhile, larger cast iron parts are stabilized using custom-fitted metal or wooden frames. When needed, container transportation is utilized to further ensure the utmost safety and security during shipment.

Shipping

1. Logistics Selection: We pride ourselves on our strong partnerships with several renowned logistics companies. Depending on your specific needs and the nature of the goods, we offer a selection of optimized transportation options, including road, rail, sea, or air freight, ensuring your products are delivered in a timely and secure manner.
2. Delivery Timeliness: Typically, for standard orders, dispatch occurs within 30 working days post-production and inspection clearance. For urgent needs, we are flexible in negotiating shorter timelines, prioritizing both production and delivery processes to meet expedited requirements.
3. Logistics Tracking: Our state-of-the-art real-time tracking service allows you to monitor the journey of your goods with ease. Simply use your order or logistics tracking number on our company's official site or through our logistics partner's platform to stay updated on your shipment's current location and estimated 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