Square Precision Casting Featuring Sandblasted Surface Treatment and Ra12.5

• 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 the manhole frame are expertly machined to ensure an impeccable fit, effectively eliminating any potential for abnormal noise disturbances.

Anti-slip
The manhole frame showcases a diamond-shaped block pattern that is meticulously cast on its surface. With an innovative structural mode where rings interlock seamlessly, T-shaped protrusions are strategically placed to significantly enhance the friction coefficient. This ensures that the friction between the asphalt base material and the ring opening is maximized when laid on auxiliary roads, providing exceptional slip resistance.

Anti-displacement
Thanks to the use of anchor bolts, which secure the manhole frame firmly to the ground (refer to the small round holes in the images for the fixing function), the construction process is optimized. The manhole cover remains perfectly aligned, preventing any misalignment of the manhole frame opening, even under the pressure of a road roller, thereby ensuring precise and standard construction.

Anti-falling
The innovative five-prevention manhole cover is equipped with a built-in anti-falling grid. This intelligent design feature safeguards against accidents, preventing people or objects from falling and sustaining injuries in the unlikely event of a missing manhole cover.

Anti-theft
Ingeniously designed with an anti-theft hidden box and an opening folding plate positioned beneath both the manhole cover and the manhole frame, this system replaces the traditional anti-theft chain. It effectively serves as a robust anti-theft measure, while also completely eradicating the issues of rust caused by cavitation and water erosion, providing a long-lasting and reliable solution.

Company Profile

Qingdao Starise Metal Technology Co., Ltd. stands as a beacon of excellence in the realm of precision casting, seamlessly blending industry and trade expertise. With a strong foundation built over three decades, our company is a pioneer in the research, development, production, and international distribution of top-tier precision casting parts. Anchored by our state-of-the-art facility sprawling over 47,000 square meters—including 10,000 square meters dedicated to high-standard production workshops—we boast an impressive annual output of over 30,000 tons of precision cast steel parts. Our superior products, lauded for their quality and durability, proudly serve clients in over 20 countries across Europe, America, and Asia.


Our History

1. Founding Period (1995-1998):
Founded in 1996 in Pingdu City, Qingdao, China, we embarked on our journey with a vision to revolutionize precision casting solutions for the agricultural machinery and automotive axle sectors. During these formative years, we harnessed traditional silica gel precision casting technology to craft high-quality small-scale precision castings.

2. Technological Accumulation and Expansion (1998-2014):
In 1998, we took a bold step forward by integrating cutting-edge investment casting and sand casting technologies, paving the way for the production of medium to large-scale precision castings. Our commitment to quality was affirmed in 2006 when we achieved ISO9001 certification, ensuring unparalleled reliability of our products. Between 2009 and 2014, we embarked on an ambitious expansion, augmenting our production facilities, introducing new production lines, and adopting advanced casting methods. This strategic growth elevated our capacity to fulfill the diverse demands of multi-batch and customized manufacturing with finesse.

3. Brand Marketing (2016-2020):
In 2016, we made brand enhancement a cornerstone of our strategy by actively participating in prominent industry exhibitions worldwide. This initiative boosted our brand visibility and recognition. By 2017, we had solidified our presence in the global market, forging enduring partnerships with international clients. By 2020, we proudly unveiled multiple patented technologies, marking a significant leap in product precision and quality.

4. Technological Innovation and Sustainable Development (2018-2024):
The year 2018 marked the inception of our dedicated research and development center, focusing on pioneering new materials and processes. In 2019, we championed environmental stewardship by developing an eco-friendly precision casting process that minimized pollution during production. This innovation significantly enhanced the quality of our castings by reducing surface and internal defects. In 2020, we earned the prestigious title of a national high-tech enterprise, a testament to our relentless pursuit of technological innovation.

5. Intelligent Manufacturing and Future Vision:
Amidst the global pandemic of 2019, we swiftly recalibrated our market strategies, fortifying our online marketing and service capabilities to maintain robust business growth. By 2021, we had embarked on an intelligent manufacturing journey, seamlessly integrating automation and information technology to amplify production efficiency and management efficacy.

6. Looking Ahead:
Steadfast in our commitment to an innovation-centric development ethos, we are unwavering in our quest to ascend to the pinnacle of the global precision casting industry.

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: Our cast steel parts are meticulously safeguarded with premium rust preventives, forming a robust anti-rust shield. This layer ensures that every piece remains pristine, effectively shielding them from rust and corrosion during both transit and storage.
2. Buffer Protection: Delicate parts, vulnerable to impacts, are enveloped in premium buffer materials like foam boards and sponges. This protective embrace prevents any collision damage, ensuring your items arrive in perfect condition.
3. Outer Packaging: Small-sized cast steel components are securely encased in durable wooden boxes with interior cushioning to prevent any movement during transit. Larger components find stability when secured by customized metal or wooden frames, and when necessary, container shipping is employed to reinforce transportation safety.

Shipping

1. Logistics Selection: By partnering with renowned logistics enterprises over long-term collaborations, we offer a spectrum of transportation options tailored to your needs. Whether by road, rail, sea, or air, we ensure your goods are delivered swiftly and safely to their destination.
2. Delivery Timeliness: Standard orders are dispatched within a swift 30 working days post-production and inspection clearance. For urgent requirements, we are flexible, offering negotiated delivery accelerations, with prioritized attention throughout production and delivery stages.
3. Logistics Tracking: Experience seamless tracking with our real-time logistics service. Access up-to-the-minute location and ETA updates on your shipments, via our official website or partner platforms, using your order or tracking number, keeping you informed every step of the way.

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