Custom Cast Ductile Iron Manhole Cover with Sandblasting 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

Whisper-Quiet Operation
The precision-machined contact surfaces between the manhole cover and its frame ensure a perfect fit, eliminating any unwanted noise, and delivering consistent silence in bustling environments.

Enhanced Traction
Our innovative manhole frame features diamond-shaped block patterns and an interlocking ring structure. The T-shaped protrusions on the ring surface significantly boost friction, providing superior grip between the asphalt and the frame for improved safety on auxiliary roads.

Securely Anchored
With strategically placed anchor bolts securing the manhole frame to the ground, our design prevents any misalignment during road construction, even under the pressure of a road roller, ensuring flawless, standard construction every time.

Safety Net Protection
Equipped with an innovative anti-falling grid, our manhole cover is engineered to prevent accidents by stopping pedestrians or objects from falling into the manhole should the cover be displaced.

Robust Anti-Theft Measures
Our advanced anti-theft design incorporates a hidden box and a folding plate beneath the manhole cover and frame. This feature replaces traditional chains, providing a comprehensive theft deterrent while eliminating rust issues caused by cavitation and water exposure.

Company Profile

Qingdao Starise Metal Technology Co., Ltd. stands as a beacon of industry excellence, seamlessly blending research, development, production, and international trade of precision casting parts. With a legacy spanning over three decades, our robust foundation is built on a state-of-the-art production base sprawling across 47,000 square meters. Within this expansive space, 10,000 square meters are dedicated to high-standard production workshops, empowering us to achieve an impressive annual output of over 30,000 tons of precision cast steel parts. Our unwavering commitment to quality has propelled our products to prestigious markets in more than 20 countries across Europe, America, and Asia.


Our History

1. Founding Period (1995-1998):
Launched in 1996 in Pingdu City, Qingdao, China, our company embarked on its journey by providing distinguished precision casting solutions specifically tailored for the agricultural machinery and automotive axle sectors. Initially, we excelled in crafting small-scale precision castings, leveraging the traditional silica gel precision casting method.

2. Technological Accumulation and Expansion (1998-2014):
In 1998, we embraced cutting-edge investment casting and sand casting technologies, unlocking the potential to produce medium to large-scale precision castings. The milestone achievement of ISO9001 certification in 2006 marked our dedication to consistent quality. The period from 2009 to 2014 witnessed a remarkable expansion of our production facilities, the introduction of multiple new production lines, and the adoption of efficient casting processes. These strategic enhancements empowered us to meet the growing demand for diverse, custom manufacturing solutions.

3. Brand Marketing (2016-2020):
2016 marked our strategic pivot towards brand elevation as we actively engaged in prominent domestic and international industry exhibitions to amplify our brand recognition. By 2017, our aspirations led us to forge enduring partnerships with overseas clients, significantly bolstering our global footprint. By 2020, our innovation-driven approach yielded multiple patented technologies, further enhancing product precision and excellence.

4. Technological Innovation and Sustainable Development (2018-2024):
In 2018, we inaugurated a dedicated R&D center, delving into pioneering materials and process explorations. The following year, we revolutionized our methods with an eco-friendly precision casting process, drastically reducing pollution emissions while elevating the surface and internal quality of castings. Our strides in innovation earned us the prestigious recognition as a national high-tech enterprise in 2020.

5. Intelligent Manufacturing and Future Vision:
Amidst the global pandemic challenges of 2019, we adeptly recalibrated our market strategy, fortifying online marketing and service capabilities to ensure continued robust growth. In 2021, we embarked on an intelligent manufacturing journey, harmonizing automation and information technology to significantly boost production efficiency and management prowess.

6. Looking Ahead:
Our unwavering commitment to an innovation-driven philosophy propels us towards securing a prominent leadership position within the international precision casting arena. We are poised to forge ahead, shaping a future defined by technological prowess and industry leadership.

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 treated with premium-grade rust inhibitors. This forms a robust anti-rust layer, ensuring exceptional protection against corrosion throughout transportation and storage.
2. Buffer Protection: To safeguard parts susceptible to impact, we employ protective materials like foam boards and sponges. This wrapping ensures that our products remain intact, preventing any collision damage during transit.
3. Outer Packaging: Small cast steel components are secured in durable wooden boxes, with careful filling to eliminate movement during transit. For larger items, we utilize bespoke metal or wooden frames, and if needed, opt for container shipping to guarantee safety throughout the journey.

Shipping

1. Logistics Selection: Partnering with renowned logistics providers, we tailor transportation solutions to customer specifications and product needs. Options include road, rail, sea, or air freight, ensuring prompt and secure delivery of your orders.
2. Delivery Timeliness: Standard orders are reliably dispatched within 30 working days post-production and inspection approval. For time-sensitive orders, we offer flexible negotiations to expedite timeline prioritization.
3. Logistics Tracking: Enjoy peace of mind with our real-time tracking services. Access the status of your shipments via order or tracking numbers on our website or partner logistics platforms, allowing you to monitor location and estimated arrival effortlessly.

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