High-Performance Ductile Iron Manhole with Precision Casting Options

• 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

Silent Symphonies: Anti-noise Feature
The machined contact surfaces between the manhole cover and its frame are engineered for an impeccable fit, eliminating any chances of abnormal noise, thus ensuring a serene and quiet environment.

Unyielding Traction: Anti-slip Technology
Elegantly designed diamond-shaped block patterns adorn the surface of our manhole frames, enhancing grip. The structural mode features interlinked rings, while innovative T-shaped protrusions on the ring opening boost the friction coefficient. This ensures a secure and slip-resistant connection with the asphalt base material when laid on auxiliary roads.

Immovable Assurance: Anti-displacement
Our manhole frames are anchored firmly to the ground with precision anchor bolts. These strategically placed small round holes ensure the manhole cover and frame remain perfectly aligned, preventing any misalignment during construction, even under the stress of road roller activity.

Safety First with Anti-falling Technology
Featuring a revolutionary built-in anti-falling grid, our five-prevention manhole cover provides superior safety by preventing unfortunate falls and injuries if the cover is displaced.

Ultimate Security: Anti-theft Design
Beneath the manhole cover, an innovative anti-theft hidden box and opening folding plate seamlessly replace traditional chains. This advanced design ensures robust protection against theft and effectively mitigates rust issues caused by cavitation and water erosion, safeguarding the integrity of the structure.

Company Profile

Welcome to Qingdao Starise Metal Technology Co., Ltd., a beacon of innovation and excellence in the precision casting industry. As a distinguished industry and trade integration enterprise, we specialize in the intricate art of precision casting parts, advancing through groundbreaking research, meticulous production, and dynamic global trade. With over 30 years of unwavering dedication, our journey is supported by a state-of-the-art production facility spanning an impressive 47,000 square meters, including 10,000 square meters of high-standard production workshops. Our remarkable annual production capacity exceeds 30,000 tons of precision-cast steel parts, which are delivered to over 20 countries and regions across Europe, America, Asia, and beyond. Join us as we forge a path of unparalleled quality and global reach.


Our History

1. Founding Period (1995-1998):
Founded in 1996 in the vibrant city of Pingdu, Qingdao, China, we embarked on our quest to deliver exceptional precision casting solutions tailored for the agricultural machinery and automotive axle industries. During this formative phase, our expertise lay in crafting small-scale precision castings, utilizing traditional silica gel precision casting technology to meet exacting standards of quality.

2. Technological Accumulation and Expansion (1998-2014):
The pivotal year of 1998 marked our adoption of cutting-edge investment casting and sand casting technologies, empowering us to manufacture medium and large-scale precision castings. Achieving ISO9001 certification in 2006 was a testament to our unwavering commitment to quality consistency. Between 2009 and 2014, we embarked on an ambitious expansion journey, bolstering our facilities with new production lines and streamlining casting processes. This strategic growth enhanced our capacity to fulfill the demands of diverse, multi-batch, and customized product manufacturing with precision and efficiency.

3. Brand Marketing (2016-2020):
In 2016, we embraced the power of brand building, making our mark by participating in both domestic and international industry exhibitions to elevate brand recognition. By 2017, our global market presence was solidified through lasting partnerships with overseas clients. By 2020, we celebrated the development of multiple patented technologies, propelling our product precision and quality to new heights.

4. Technological Innovation and Sustainable Development (2018-2024):
The year 2018 heralded a new era with the establishment of our dedicated research and development center, driving forward the exploration of novel materials and processes. By 2019, our commitment to sustainability bore fruit with an eco-friendly precision casting process, significantly reducing pollution emissions while enhancing casting quality. Our 2020 recognition as a national high-tech enterprise underscores our remarkable achievements in innovation and technological advancement.

5. Intelligent Manufacturing and Future Vision:
Amidst the challenges of the global pandemic in 2019, we swiftly recalibrated our strategy to bolster online marketing and enhance service capabilities, ensuring business continuity and growth. The dawn of 2021 saw the launch of our intelligent manufacturing initiative, integrating advanced automation and information technology to elevate production efficiency and management prowess.

6. Looking Ahead:
With an unwavering commitment to our innovation-driven development philosophy, we are poised to secure our position at the forefront of the global precision casting industry, continually driving excellence and technological brilliance.

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 components are meticulously treated with premium rust preventives. This process creates a robust anti-corrosive layer, ensuring that each piece remains pristine and rust-free throughout transport and storage.
2. Buffer Protection: We prioritize protection by enveloping vulnerable components in high-quality foam boards and sponges. This cushioning prevents any impact damage during transit, keeping your parts secure and intact.
3. Outer Packaging: Our packaging solutions include durable wooden boxes for smaller cast steel parts, filled with protective stuffing to eliminate movement. Larger components are expertly secured in custom-designed metal or wooden frames, with the option of container transport to guarantee absolute safety during shipping.

Shipping

1. Logistics Selection: We have forged strong alliances with prominent logistics providers to cater to diverse needs. Whether by road, rail, sea, or air, we meticulously select the optimal mode of transport to ensure swift and secure delivery that aligns perfectly with your requirements.
2. Delivery Timeliness: For standard orders, we promise dispatch within 30 working days post-completion and inspection. For urgent requirements, we offer flexible solutions to expedite the process, giving priority to your production and delivery needs.
3. Logistics Tracking: Our advanced tracking service grants you real-time insights into your shipment's journey. By using your order or logistics tracking number on our website or the logistics partner's platform, you can monitor the location and anticipate the arrival of your goods with confidence.

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