Durable Custom Cast Ductile Iron Manhole for All Weather Conditions

• 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

Silence-Enhancing Design
The contact surfaces of the manhole cover and the manhole frame are precisely machined for an impeccable fit, eradicating any potential for unwanted noise, ensuring peace and quiet in all environments.

Safety-Boosting Anti-Slip Technology
Adorned with diamond-shaped block patterns, the manhole frame boasts a unique structural design with interconnected rings. The addition of T-shaped protrusions enhances the friction coefficient, offering superior grip between the asphalt and the ring opening. This innovation ensures steadfast stability on auxiliary roads, even under the heaviest traffic conditions.

Stability-Enhancing Anti-Displacement
The manhole frame is anchored securely to the ground with precision-engineered anchor bolts, visible through small round holes designed for steadfast fixation. This ensures that the manhole cover maintains perfect alignment during construction, even when subjected to the heavy rolling of road rollers, thereby embodying impeccable standard adherence.

Safety-First Anti-Falling Grid
Featuring an innovative five-prevention design, the manhole cover includes an integrated anti-falling grid, a safeguard that prevents accidents by stopping individuals or objects from falling into the open manhole, even if the cover is accidentally dislodged.

Cutting-Edge Anti-Theft Solutions
Ingeniously designed with a concealed anti-theft box and a folding plate beneath the cover and frame, this solution replaces traditional anti-theft chains. It offers uncompromising security against theft while effectively eliminating rust threats from cavitation and water erosion, ensuring longevity and reliability.

Company Profile

Qingdao Starise Metal Technology Co., Ltd. stands as a beacon of excellence in the precision casting industry. This industry and trade integration enterprise is a powerhouse of innovation and expertise, dedicated to the research, development, and global trade of precision casting parts. With a legacy stretching over three decades, and a state-of-the-art production facility sprawling across 47,000 square meters—including 10,000 square meters of cutting-edge workshops—Qingdao Starise boasts an impressive annual production capacity exceeding 30,000 tons of precision cast steel parts. The company's reach extends globally, with products exported to over 20 countries and regions across Europe, America, Asia, and beyond.


Our History

1. Founding Period (1995-1998):
Founded in 1996 in the vibrant city of Pingdu, Qingdao, China, Qingdao Starise Metal Technology Co., Ltd. embarked on its journey to deliver top-tier precision casting solutions tailored for the agricultural machinery and automotive axle industries. In these formative years, the company honed its expertise in crafting small-scale precision castings, employing the timeless art of traditional silica gel precision casting technology.

2. Technological Accumulation and Expansion (1998-2014):
The year 1998 marked a pivotal shift as the company embraced advanced investment casting and sand casting technologies, unlocking the potential to produce medium to large-scale precision castings. The attainment of ISO9001 certification in 2006 set a benchmark for unwavering quality assurance in casting products. From 2009 to 2014, the company underwent a remarkable evolution, significantly expanding its production facilities, unveiling multiple new production lines, and adopting cutting-edge casting processes. This period of growth empowered Qingdao Starise to adeptly cater to the increasing demand for diverse, multi-batch, and customized product manufacturing.

3. Brand Marketing (2016-2020):
In 2016, Qingdao Starise embarked on a journey of brand elevation, actively participating in prestigious domestic and international industry exhibitions to amplify brand recognition. By 2017, the company's global market footprint expanded significantly, cementing long-term partnerships with international clientele. By 2020, the company's innovative prowess was evident through the development of multiple patented technologies, significantly enhancing product precision and quality.

4. Technological Innovation and Sustainable Development (2018-2024):
In 2018, Qingdao Starise made a strategic investment in a dedicated research and development center, focused on pioneering new materials and processes. The year 2019 saw the advent of an eco-conscious precision casting process that dramatically reduced pollution emissions while elevating the surface and internal quality of castings. Recognized as a national high-tech enterprise in 2020, the company's commitment to technological innovation was formally celebrated.

5. Intelligent Manufacturing and Future Vision:
During the global pandemic in 2019, Qingdao Starise exhibited remarkable agility, recalibrating its market strategy to boost online marketing and service capabilities, ensuring stable business growth. In 2021, the company unveiled an intelligent manufacturing initiative that seamlessly integrated automation and information technology, dramatically boosting production efficiency and management capabilities.

6. Looking Ahead:
Qingdao Starise Metal Technology Co., Ltd. remains steadfast in its commitment to innovation-driven development, ceaselessly striving to ascend as a leader in 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 exquisite cast steel parts are meticulously coated with premium rust preventives, creating an impenetrable and durable anti-rust film. This ensures unrivaled protection against rust throughout transportation and storage, preserving the integrity and longevity of each piece.
2. Buffer Protection: To safeguard our precious parts from potential bumps and bruises, we envelop them in superior buffer materials like foam boards and sponges. This thoughtful wrapping acts as a protective cocoon, shielding them from collision damage during transit.
3. Outer Packaging: Our packaging solutions are tailored to perfection. Small cast steel parts nestle securely within robust wooden boxes, cushioned by ample stuffing to eliminate any movement during transit. For larger items, we employ customized metal or wooden frames, and when necessary, utilize container transport to guarantee supreme safety throughout the journey.

Shipping

1. Logistics Selection: Embracing excellence, our long-term partnerships with premier logistics enterprises allow us to tailor the perfect transportation method. Whether it be road, rail, sea, or air, we ensure that each mode is selected with precision, aligning with customer needs and product characteristics for timely and impeccable delivery.
2. Delivery Timeliness: Efficiency and reliability define our service. For standard orders, dispatch occurs within 30 working days post-production and inspection. For those in need of swift service, we offer negotiable delivery timelines, prioritizing production and dispatch to meet your urgent demands with grace and speed.
3. Logistics Tracking: Our state-of-the-art tracking system empowers you with real-time visibility. Simply use your order number or logistics tracking number on our official website or partner platforms to monitor your goods' journey. Stay updated on the exact location and anticipated arrival time, ensuring peace of mind and seamless planning.

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