Round Precision Casting with High-Quality Powder Coating and Ra0.8 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 contact surfaces of the manhole cover and frame are precisely machined to ensure they fit seamlessly, eliminating any abnormal noise that could arise from misalignment.

Anti-slip
The surface of the manhole frame features diamond-shaped block patterns for enhanced grip. This frame utilizes a structural design where interconnected rings provide stability. Additionally, strategically placed T-shaped protrusions on the ring surface significantly increase the friction coefficient between the asphalt base and the ring, ensuring a secure and anti-slip fit even on auxiliary roads.

Anti-displacement
The manhole frame is firmly anchored to the ground with robust anchor bolts, visible in the small round holes illustrated in the figure. This secure attachment prevents any misalignment of the manhole frame even when the road roller passes over it, ensuring precise and standard construction every time.

Anti-falling
Our innovative five-prevention manhole cover includes an internal anti-falling grid, effectively safeguarding against accidents by preventing people or objects from falling through in the rare event of a cover loss.

Anti-theft
Ingeniously designed, the manhole cover features an anti-theft hidden box and an opening folding plate located beneath. This advanced system replaces the traditional anti-theft chain, providing comprehensive theft protection while eliminating rust issues caused by cavitation and water erosion.

Company Profile

Qingdao Starise Metal Technology Co., Ltd. is a pioneering industry and trade integration enterprise, devoted to the innovation, meticulous production, and global distribution of high-grade precision casting components. Supported by its own state-of-the-art factory, the company has made remarkable strides in the industry for over three decades. Spanning a vast modern production complex of 47,000 square meters, which includes 10,000 square meters dedicated to high-standard production workshops, it boasts an impressive annual output of over 30,000 tons of precision cast steel parts. The company's superior products are proudly exported to more than 20 countries and regions across Europe, America, Asia, and beyond, marking its global footprint.


Our History

1. Founding Period (1995-1998):
Founded in 1996 in the vibrant city of Pingdu, Qingdao, China, the company began its journey by delivering exceptional precision casting solutions tailored for the agricultural machinery and automotive axle sectors. During this formative period, the company specialized in crafting small-scale precision castings utilizing the time-honored silica gel precision casting technology.

2. Technological Accumulation and Expansion (1998-2014):
In 1998, the company embraced cutting-edge investment casting and sand casting technologies, which facilitated the production of both medium and large-scale precision castings. Achieving ISO9001 certification in 2006 was a testament to the consistent quality and dependability of its casting products. Between the years 2009 and 2014, the company embarked on a significant expansion of its production capabilities, introducing several new production lines and adopting refined casting processes. This evolution allowed the company to adeptly cater to the intricate demands of diverse, multi-batch, and custom product manufacturing.

3. Brand Marketing (2016-2020):
In a bold move in 2016, the company prioritized brand elevation by actively participating in both domestic and international industry exhibitions, thereby increasing brand visibility and recognition. By 2017, the company had broadened its global market reach, forging enduring partnerships with international clients. By 2020, the company had developed a suite of patented technologies, further elevating product precision and quality.

4. Technological Innovation and Sustainable Development (2018-2024):
In 2018, the company made a strategic investment in establishing a specialized research and development center dedicated to the exploration of novel materials and processes. A year later, in 2019, it pioneered an eco-friendly precision casting process that notably reduced pollutant emissions during production while enhancing the quality of both surface and internal casting defects. In 2020, the company earned the prestigious recognition as a national high-tech enterprise, which highlighted its significant accomplishments in technological advancement.

5. Intelligent Manufacturing and Future Vision:
Amidst the challenges presented by the global pandemic in 2019, the company adeptly adjusted its market strategy by bolstering online marketing and service delivery capabilities, thereby ensuring steady business momentum. In 2021, it pioneered an initiative in intelligent manufacturing, seamlessly integrating automation and information technology to boost production efficiency and management prowess.

6. Looking Ahead:
The company remains steadfast in its dedication to an innovation-driven development ethos, consistently striving to attain a leading stature within 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: To ensure the utmost protection, the surface of our cast steel components is meticulously coated with superior-quality rust preventives. This creates a robust anti-rust layer that efficiently safeguards against corrosion during both transit and storage.
2. Buffer Protection: To guard parts that are susceptible to impacts, we utilize cushioning materials such as foam boards and sponges. This precautionary wrapping ensures that your products remain unscathed by collisions during transit.
3. Outer Packaging: Our smaller cast steel components are securely encased within sturdy wooden boxes, filled with ample stuffing to prevent movement during transport. Larger components are firmly anchored using custom metal or wooden frames, with container shipping as an option to further guarantee safe transit.

Shipping

1. Logistics Selection: We pride ourselves on our strategic partnerships with numerous renowned logistics companies. Depending on customer requirements and product characteristics, we offer tailored transport solutions, including road, rail, sea, and air freight options, ensuring swift and risk-free delivery.
2. Delivery Timeliness: For standard orders, expect dispatch within 30 working days post-completion and inspection. Urgent orders can benefit from expedited processing and delivery, with timelines adjusted to meet your specific needs.
3. Logistics Tracking: Stay informed with our real-time tracking service. Simply use your order or logistics tracking number on our official website or through our logistics partners' platforms to monitor the exact location and anticipated arrival of your shipment at any 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