SYI Foundry – Precision Castings for Modern Infrastructure

ISO 9001 Certified Manufacturer of Ductile Iron Manhole Covers, Gully Gratings, Manhole Steps, Surface Boxes, Street Furniture & OEM Industrial Castings. Trusted by municipalities and industries worldwide.

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About SYI Foundry

SYI Foundry is one of the largest and most trusted foundries in North China, specializing in high-quality ductile iron and aluminum castings for municipal, industrial, and infrastructure applications.

As part of the SYI Group, we combine decades of metallurgical expertise with modern manufacturing processes to deliver durable, reliable, and certified products that meet international standards including EN124, ASTM-A-48, BS5834, and ISO 9001:2008.

20+

Years of Experience

50+

Countries Served

Our Products

Manhole Covers

• A15, B125, C250, D400, E600 Classes
• Ductile Iron & Cast Iron
• Kitemark / SGS / TUV Certified
• Compliant with EN124 Standards

Gully / Manhole Gratings

• Heavy-duty ductile iron
• Anti-slip & load-bearing
• For stormwater & drainage
• Custom sizes available

Surface Boxes & Meter Boxes

• For utility access
• Ductile iron construction
• Tamper-resistant designs
• Suitable for sidewalks

Manhole Steps

• Ductile iron, cast iron, aluminum
• Polypropylene options
• Corrosion-resistant
• Easy installation

Street Lights Poles & Bases

• Cast iron & ductile iron
• Weather-resistant
• Custom heights & designs
• Municipal grade

Street Bollards

• Cast iron protection
• Prevent vehicle damage
• Removable & fixed types
• Powder-coated finish

Tree Gratings & Frames

• Protect tree roots
• Ductile iron construction
• Permeable design
• Urban landscaping

OEM Industrial Castings

• Investment & precision casting
• Resin sand & lost foam
• Custom engineering
• Global supply chain

Aluminum Parts

• Sand & die castings
• Permanent mold
• Extrusions available
• Lightweight & strong

Garden Benches

• Cast iron durability
• Classic & modern styles
• Weather-resistant
• Public space solutions

Rainwater Gutters & Pipes

• Ductile iron components
• Drainage accessories
• Corrosion-resistant
• Integrated systems

Custom Municipal Castings

• Tailored to city needs
• Engineering support
• Bulk production
• Certified quality

Why Choose SYI Foundry?

Certified Quality

ISO 9001:2008, Kitemark, SGS, TUV, NF, ICIM certified. Compliant with EN124, ASTM-A-48, BS5834 standards.

Industrial Scale

One of the largest foundries in North China with advanced casting technologies and high-volume production.

Global Reach

Products exported to over 50 countries. Trusted by municipalities, contractors, and OEMs worldwide.

Custom Solutions

OEM and ODM services available. Custom designs, sizes, and finishes to meet exact project requirements.

Frequently Asked Questions

What materials do you use for manhole covers?

We manufacture manhole covers using ductile iron and cast iron, both meeting international standards such as EN124 and ASTM-A-48.

Are your products certified?

Yes, SYI Foundry is ISO 9001:2008 certified and our products are tested and certified by SGS, TUV, Kitemark, NF, and ICIM.

Can you produce custom designs?

Absolutely. We offer OEM and ODM services with full engineering support for custom manhole covers, gratings, and industrial castings.

What is your production capacity?

As one of the largest foundries in North China, we have a high-volume production capacity to support large infrastructure projects globally.

Do you supply aluminum castings?

Yes, our Aluminum Division produces sand castings, die castings, permanent mold castings, and extrusions for industrial applications.

Get in Touch

For inquiries, quotes, or technical support, contact our sales team directly.

SYI Foundry (Head Office)

Sales Director: Ms. Ma

Email: marketing@syifoundry.com

Phone: +86-351-2027764

Fax: +86-351-4040962

Address: Motianshi, No.51, Binhe West Road, Taiyuan, Shanxi, China 030027

Website: syifoundry.com

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