Here are the top 10 die-casting manufacturers in China, and introduced the types of die-casting process. We also introduced you the advantages of die casting China.
Type of Die Casting
Low-pressure Die Casting
Low-pressure die casting is that molten metal introduced from furnace into cold mould and gas pressure hold the molten metal in the die until it solidifies. The Production rates are fair and less than high pressure. Wall thickness is minimum 2-3 cm. The high yield is over 90% and trimming cost is low. The size of casting is limited due to machinery size. Surface finishing and minimum wall thickness are better than gravity die casting.
High Pressure Die Casting
High pressure die casting is a similar process to low pressure casting but requires complex machinery. It is suited to high production rates. The wall thickness can be as little as 1-2.5mm and the surface finish could be 1.5m. Pressure die casting has high strength due to the technology process. The size of casting is also limited due to machinery size. The start up cost is high that is suit to mass production.
Gravity die casting
Gravity die casting is molten metal poured into permanent cast-iron molds. The process fills with no force other than gravity. The production rates is higher than sand casting, but the mold cost is also higher than sand. Gravity die casting has a more smooth surface and better strength than sand casting due to rapid solidification. Another advantage is low possibility of gas porosity and thin wall thickness.
Aluminum Die Casting
Aluminum Die Casting is that molten metal injected with high pressure into mold cavity. There are hot and cold chamber machine. The most common material is A380, which provides the best material properties and cast-ability. Aluminum, magnesium, and zinc are three common alloys material in die casting.
Magnesium Die Casting compares to aluminum alloy parts, the weight is lighter than aluminum parts. Magnesium alloy die casting can have thin wall and complex structure of the part. Magnesium alloy AZ91D provides the highest strength compared with other magnesium die casting alloys. The material properties is that outstanding corrosion resistance, smooth appearance, and excellent strength.
Zinc Die Casting
Zinc alloy parts compares to other alloy, it is the heaviest material that is commonly used for small part.Zinc alloys require lower pressure and temperature compared to aluminum and magnesium alloys. Therefore, the metal molds have less maintenance cost.
Benefits of Die Casting China
- EMI, RFI Shielding and can also act as an electrical ground for circuits.
- Speed of Production – Die Casting process is highly automated. Multi-cavity dies can also be used to speed up.
- Long Tool Life – 100000 – 200000 parts of identical die castings can be produced from a die tooling.
- Dimensional Precision – Dimensional tolerance are controlled by mold, thus high repeatability than machining.
- Cost Savings – Efficient, economical process for high volume production.
- Strength – Produces heat and wear resistant parts.
- Good Finish – Die cast parts can be manufactured with smooth or textured surfaces, and are easily plated or powder coated.
Die Casting China Manufacturer List
Ningbo Jiye Automobile Components Die-casting Co., Ltd
Ningbo Jiye Automobile Components Die-casting Co., Ltd. established in 1995, located in Ningbo City, Zhejiang Province, which is a high-pressure, aluminum die cast manufacturer. Apex has ISO 9001 and TS16949 certification. Jiye has rich experience in tooling design which applies JS, Anycasting and Magna flow simulation to optimize the best position of gates and runner for the mold.
GC Precision Mold Co.ltd
GC Precision Mold Co.ltd established in 1999, having over 20 years experience in die casting manufacturing. The pressure of die casting machines they have are 120 tonnages to 165 tonnages. The parts can be weight up to 50 kg. The services they offered are
Vacuum Aluminum Die Casting,
Vacuum Zinc Die casting,
luminium Gravity Casting,
Bronze Sand Casting,
Hanway metal products Co.,Ltd
Hanway metal products Co.,Ltd.has been specialized in aluminum die casting since 2005 in Nanhai, China. Besides, they also provide machining service such as Hydrawlic press, CNC machining and NC machining.Main products are involved in various industries such as Wireless Network & Telecommunication,
CCTV Security System, LED Heat-sink, Automobile and Motorcycle parts, Valve Body.
Junying Metal Manufacturing Company Limited
Junying Metal Manufacturing Company Limited established in Dongguan City, China in 2002. They have been specialized in providing zinc alloy casting services, aluminum alloy casting service and CMC machining Services. They insist on sustaining continuous improvement through each department. Junying has gotten ISO 9001:2015 Certificate with No.02817Q10485R0M.
RUICI INDUSTRY (DALIAN) CO., LTD
RUICI INDUSTRY (DALIAN) CO., LTD established in 2005 in Dalian city as a manufacturer and trading company. They provide sand casting, die casting , investment casting, forging, stamping and CNC machining. They also provide parts that are used for valve, pump, mineral, construction, agriculture machinery.
China Synergy Group
China Synergy Group Manufacturing has 15 years experience in metal casting with ISO 9001 and TS 16949 certification. The process involves aluminum casting, zinc die casting and brass die casting. Meanwhile, they also provide low pressure casting, forging, machining as well as surface finishing.
SYX die casting company
SYX die casting company was founded in 1999 specializing in Metal rapid prototyping, Aluminium Die Casting, Zinc Die-Casting and Magnesium Die casting. SYX has ISO 9001 and TS16949 certification.They can custom components for electric car, moto auto car, led display, led light, medical, telecommunication 5G, furniture and smart home.
Ningbo Wing Precision Machining Co., Ltd
Ningbo Wing Precision Machining Co., Ltd. is a professional manufacturer of die casting parts, CNC machining parts, injection plastic parts etc with 18 years profesional experience. Their main products are casting parts, forging parts ,stamping parts, die-casting parts, machining parts and injection plastic parts.
SHENZHEN KOHONG PRECISION METAL CO.,LTD
SHENZHEN KOHONG PRECISION METAL CO.,LTD. has 15 years experience in supply chain management and manufacturing of metal parts. It also has good relationships with (third party logistics companies. Main products are CNC machined parts, Die casting parts, Insert injection parts, Metal stamping parts and Automotive parts.
Weifang Anruixin Import and Export Co., ltd.
Weifang Anruixin Import and Export Co., ltd. was fond in 1992 in Weifang city Shandong province which is 150 kilometers away from Qingdao port. They have three manufacture process:Die Casting, Lost Wax Casting Sand Casting. Main market is Japan, Korea, Russia, EU and USA.