Round Casting with Ra0.8 Surface Roughness and Durable Painting Treatment

• 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
To ensure a whisper-quiet operation, the contact surfaces of the manhole cover and its frame are expertly machined to achieve a perfect fit, completely eliminating any potential for abnormal noise.

Anti-slip
Our innovative manhole frame features diamond-shaped block patterns meticulously cast on the surface, and adopts an interlocked ring structure. T-shaped protrusions on the rings enhance grip, dramatically increasing the friction coefficient between the asphalt base and the ring opening. This ingenious design ensures superior stability once laid on auxiliary roads.

Anti-displacement
Secured by robust anchor bolts, visible in the small round holes, the manhole frame is steadfastly fixed to the ground. This ensures that during construction, even the heavy rolling of road rollers will not misalign the manhole frame opening, thereby maintaining excellent construction standards.

Anti-falling
Ingeniously built into the new five-prevention manhole cover is an anti-falling grid. This critical feature prevents unfortunate incidents of people or objects falling into the manhole in the event the cover is misplaced or removed.

Anti-theft
Beneath our manhole covers lies an advanced anti-theft system, featuring a concealed box and an opening folding plate, which effectively replaces traditional anti-theft chains. This innovation ensures unmatched security while eradicating the rust issues caused by cavitation and water erosion.

Company Profile

Qingdao Starise Metal Technology Co., Ltd. stands as a beacon of innovation and excellence in the realm of precision casting. As an integrated enterprise, we specialize in the meticulous research, robust development, and widespread global trade of top-tier precision casting components. With an extensive legacy of over three decades, our company thrives on its solid foundation: a sprawling production landscape spanning 47,000 square meters, including 10,000 square meters dedicated to high-standard production facilities. Our annual prowess allows us to produce a staggering 30,000 tons of expertly crafted precision steel castings. Our distinguished products proudly serve over 20 countries across Europe, America, and Asia, showcasing our commitment to global quality and innovation.


Our History

1. Founding Period (1995-1998):
Back in 1996, nestled in the dynamic city of Pingdu, Qingdao, China, our company embarked on a visionary journey to deliver top-notch precision casting solutions. Our early focus catered to the agricultural machinery and automotive axle sectors, producing intricate, small-scale precision castings through the traditional yet effective silica gel casting technique.

2. Technological Accumulation and Expansion (1998-2014):
The year 1998 marked a pivotal evolution for us as we embraced cutting-edge investment and sand casting technologies. This advancement enabled us to venture into the production of medium and large-scale precision castings. Our commitment to quality was solidified in 2006 with the prestigious ISO9001 certification. Between 2009 and 2014, we scaled new heights by significantly upgrading our production expanse, introducing multiple state-of-the-art production lines, and implementing efficient casting methodologies. This growth not only amplified our production capacity but also equipped us to cater to diverse, multi-batch, and bespoke manufacturing needs.

3. Brand Marketing (2016-2020):
In 2016, we embarked on a strategic brand-building journey, actively engaging in both national and international industry exhibitions to boost our brand visibility. By 2017, our footprint had expanded globally, forging enduring partnerships with international clientele. Our dedication to innovation led to the development of several patented technologies by 2020, significantly elevating the precision and quality of our offerings.

4. Technological Innovation and Sustainable Development (2018-2024):
In 2018, we made a strategic investment in a pioneering research and development center, dedicated to exploring groundbreaking materials and processes. Our commitment bore fruit in 2019 with the creation of an environmentally conscious precision casting process, drastically reducing pollution while enhancing the surface and internal quality of castings. Our innovative strides were nationally recognized in 2020, earning us the prestigious title of a high-tech enterprise and highlighting our technological achievements.

5. Intelligent Manufacturing and Future Vision:
The onset of the global pandemic in 2019 prompted us to recalibrate our market strategy swiftly, enhancing online marketing and service capabilities to maintain business momentum. By 2021, we unveiled an intelligent manufacturing initiative, seamlessly integrating automation and information technology to boost production efficiency and management sophistication.

6. Looking Ahead:
With an unwavering commitment to innovation-driven progress, we aspire to secure our standing as a leader in the global precision casting industry, continually pushing the boundaries 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

Impeccable Packaging Solutions

1. Rust Prevention Treatment: To ensure your cast steel parts remain pristine, we meticulously apply high-quality rust preventives, forming a robust and dense anti-rust film on the surface. This not only preserves the parts during transit but also offers exceptional protection during storage, effectively shielding them from rust.
2. Buffer Protection: We employ state-of-the-art buffer protection for parts susceptible to impacts. Wrapping materials such as foam boards and premium sponges are carefully utilized to provide a cushioning effect, preventing any collision or damage during transportation.
3. Outer Packaging: Our small cast steel parts are meticulously encased in sturdy wooden boxes, filled with cushioning materials to prevent any movement. For larger parts, we use custom metal or wooden frames and, when necessary, resort to container transportation. This comprehensive approach ensures maximum safety and stability during transit.

Efficient Shipping

1. Logistics Selection: Collaborating with top-tier logistics enterprises, we tailor transportation methods to fit customer requirements and product characteristics. From road and railway transport to sea and air freight, we ensure each item reaches its destination safely and promptly, catered precisely to your needs.
2. Delivery Timeliness: For standard orders, we pledge to dispatch within 30 working days post-inspection. For urgent requests, our processes are flexible; delivery times can be negotiated and prioritized to meet your demands, ensuring a swift and efficient service.
3. Logistics Tracking: Our real-time tracking service empowers you with up-to-the-minute information about your shipment. Simply use your order or logistics tracking number on our website or partner platforms to gain insights into the current location and anticipated arrival of your goods at any moment.

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