Key Features:

1. Superior Castability: Grey iron is known for its excellent castability and ability to form complex shapes, making it ideal for a variety of industrial applications.

2. High Strength and Durability: Grey iron castings offer a great balance of strength, wear resistance, and durability, making them perfect for high-stress environments.

3. Machinability: Grey iron has superior machinability compared to other metals, ensuring that the castings are easy to shape, drill, and cut to meet precise dimensions.

4. Corrosion Resistance: Grey iron offers good resistance to corrosion in many applications, making it suitable for outdoor or heavy-duty uses.

5. Cost-Effective: Due to its excellent balance of strength, machinability, and cost, grey iron is one of the most economical casting materials available.

Applications:

Our grey iron castings are used in a variety of industries, including:

• Automotive Industry: Engine blocks, brake drums, and suspension components.

• Construction Equipment: Structural components, heavy machinery parts, and foundation bases.

• Pumps and Valves: Components for pumps, valve bodies, and water treatment systems.

• Electrical Equipment: Enclosures, housings, and components for electrical and power generation systems.

• Heavy Machinery: Gearboxes, housings, and other machinery parts that require high strength and wear resistance.

Technical Specifications:

• Material Grade: Grey iron (GG25, GG30, GG35, GG40, and custom grades available)

• Tensile Strength: 200-300 MPa (depending on grade)

• Elongation: 1.5%-2.5% (depending on grade)

• Hardness: 180-250 HB

• Casting Weight: 1 kg to 5000 kg (custom weights available)

• Surface Finish: Rough to medium finishes, depending on the application

• Tolerance: Custom tolerances available based on your needs

Manufacturing Process:

At Zhaoyuqi Machinery, we use advanced casting methods to ensure the production of high-quality grey iron castings. Our capabilities include:

• Green Sand Casting: The traditional and most commonly used method for producing high-volume grey iron castings.

• Resin Sand Casting: Ideal for producing precision castings with tighter tolerances.

• Shell Mold Casting: A process for producing high-precision and complex-shaped castings.

• Lost Foam Casting: For intricate and complex designs that require minimal finishing.

We offer OEM and ODM services, ensuring that every part we produce meets your exact requirements.

Quality Control:

Quality assurance is integral to our manufacturing process. We perform rigorous testing and inspection to ensure the quality of every grey iron casting we produce. Our quality control measures include:

• Chemical Composition Analysis: To verify material specifications and ensure proper alloy content.

• Mechanical Properties Testing: Tensile strength, hardness, and elongation tests to ensure the castings can withstand high-stress environments.

• Dimensional Inspection: Using advanced CMM (Coordinate Measuring Machines) to check the dimensional accuracy of the castings.

• Surface Finish Inspection: Visual and physical inspection of the surface finish to meet customer specifications.

• Non-Destructive Testing (NDT): X-ray and ultrasonic tests for internal quality and defect detection.

About Zhaoyuqi Machinery

Qingdao Zhaoyuqi Machinery Co., Ltd was founded in 2005, which located in Qingdao. The factory is specialized in OEM casting service more than 10 years.The main materials are gray iron and ductile iron.

Our casting methods are mainly Coated sand casting(shell model casting),Clay sand casting (green sand casting) and Lost foam casting production.

We has a Japanese static pressure horizontal modeling line and a DISA vertical modeling line ,a lost foam production line and manual production.Our capacity is 6000-8000tons yearly.

We has passed ISO 9001 certification since 2005. We has professional technology research and development team and quality test workers. We focus on customized production with high quality and on-time delivery.

Our production are widely used in electrical accessories, construction, auto parts, transportation, public utility,boats and ships, pump and fittings.

• Higher Quality Grey Iron Castings

You will get higher-quality Grey Iron Castings. Zhaoyuqi has rich experience in the foundry industry and can provide you with investment casting, lost wax casting, lost foam casting, clay sand casting, coated sand casting, and other casting services. We have advanced production lines, equipped with advanced testing equipment. Our quality inspection team will strictly test the product size, mechanical properties, surface finish, etc. to ensure that the pass rate of the order can reach 100%.

• Shorter Production Cycle

You will get the Grey Iron Castings with a shorter production cycle. Zhaoyuqi's technical team will select a more suitable casting process and customize a complete production solution according to the drawings and production requirements you provide. The experienced production team can proficiently operate advanced equipment. They shorten the production cycle of the order by reducing the defective rate to increasing the processing speed of the order.

More Type of Surface Treatment

You will get Grey Iron Castings with more types of surface treatment. Zhaoyuqi masters advanced powder coating, painting, galvanizing, shot blasting, sandblasting, and other surface treatment technologies so we can provide higher standard surface treatment services. We have many surface treatment factories in cooperation. The quality inspection team will track the production process to ensure that the surface of the product can meet your requirements.

More Cost-saving Freight Routes

You will get Grey Iron Castings with more cost-saving freight routes. Zhaoyuqi's freight consulting team has been established for over 16 years and has worked closely with dozens of freight companies around the world. The shipping methods we can provide cover sea, land and air. We can plan a variety of shipping methods according to your city. You can choose a more suitable freight route according to the actual situation.

More Comprehensive Service

You enjoy more comprehensive service at Zhaoyuqi. Zhaoyuqi's service team members include technical, quality inspection, design, procurement, production, freight, finance, and other positions. We are committed to solving more problems for you to make your purchasing experience at Zhaoyuqi easier. You can make suggestions at any time so that we can provide you with better services.