Pipe fittings
Pipe fittings

Pipe fittings

As key fittings designed for water and wastewater systems, municipal piping, building plumbing and other critical applications, our premium cast iron fittings are produced by sand casting from molten cast iron.

Sand castings with coating

Sand castings with coating

Coated (shell) sand is used, consisting of quartz sand, pre-coated with thermoplastic phenolic resin and a hardener - hexamethylenetetramine. The metal model plate is heated to 180–340 °C.  

car rocker arm

car rocker arm

Rocker arms made of high quality cast iron for automobile engines. Made from high-strength cast iron grades QT450/QT500 with CNC-machined working surfaces. The foundry is ISO 9001 and IATF 16949 certified. High fatigue strength and wear resistance. Export worldwide from Qingdao, China.

Parts for agricultural machinery

Parts for agricultural machinery

Agricultural machinery operates in harsh field conditions with high loads, where the reliability of spare parts directly determines uptime and harvesting efficiency.

Hanging connector

Hanging connector

Our sand cast hanger clamp is a durable, specialized line fitting designed for overhead power lines, substation busbar systems and new energy grid connections.

Spare parts for pumps

Spare parts for pumps

In industrial hydraulic systems, key components of pumps and valves are critical factors that determine the pressure load capacity, tightness and service life of the entire equipment.  

Pump impeller

Pump impeller

High efficiency cast pump impellers for industrial, agricultural and marine applications. Precision casting from SS304/316 stainless steel, duplex steels, cast iron and bronze. ISO 9001 certified, dynamic balancing and CNC machining. OEM and ODM services are available. Global delivery from Qingdao.

Accessories for mining equipment

Accessories for mining equipment

Gray cast iron (SCh250, SCh300) is widely used for machine frames, engine blocks and body parts due to its good machinability and ability to dampen vibrations.  

Bollard

Bollard

Cast iron mooring bollards are essential mooring devices widely installed on quays, piers and jetties to reliably transfer mooring forces from moored vessels to the pier structure.

Washer

Washer

Our sand casting force washer is a heavy load transfer element specially designed for power line fittings, substation equipment and support structure connections.

Universal structural fastening

Universal structural fastening

Engineering universal structural fastenings for severe operating conditions. ISO 9001 certified foundry offering custom casting (clay sand/shell molding) for the US, EU and South American markets. High strength, corrosion resistance, conforms to ASTM/DIN standards. Request a quote.

Swivel mount for braces

Swivel mount for braces

High performance swivel fasteners for seismic bracing of pipes, ducts and cable trays. ISO 9001 certified foundry offering custom precision machined cast steel/iron components. Compliant with ASCE 7, IBC and EN standards. Export to the USA, EU and South America.

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Products

Qingdao Zhaoyuqi Mechanical Engineering Co.,Ltd was founded in 2005. It is located in Qingdao, which is a port city. Our factory has been specialized in OEM customized iron casting services for over 20 years. The main materials we use are ductile iron, gray cast iron, steel and metal alloys. We have passed ISO 9000 certification since 2005.

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