Injection molding is a manufacturing process used to produce parts by injecting molten material into a mold cavity. The molten material is then cooled and solidified to form the desired shape. The process is widely used in the manufacturing of a variety of plastic parts, including automotive parts, toys, household appliances, and medical devices, among injection molding companies.

Injection molding machines are typically made by specialized manufacturers, such as Arburg, Engel, Husky, Sumitomo, and Demag. These companies produce a wide range of machines with different specifications, capacities, and features to cater to the diverse needs of the industry. The machines vary in terms of their clamping force, injection unit size, shot size, and mold size, among other parameters.

Arburg is one of the leading injection molding machine manufacturers in the world. The company, founded in 1923 in Germany, produces a wide range of machines that are suitable for a variety of applications, including medical devices, packaging, and automotive parts. Arburg machines range in size from small, desktop machines to large, high-end machines with a clamping force of up to 6,500 tons.

Engel is another major injection molding machine manufacturer with headquarters in Austria. The company was founded in 1945 and has since grown to become one of the largest manufacturers of injection molding machines in the world. Engel machines are known for their high precision, speed, and efficiency, and are widely used in the automotive, packaging, and medical industries.

Husky Injection Molding Systems is a Canadian-based company that specializes in the design and manufacture of injection molding machines and equipment. The company, founded in 1953, produces machines with a clamping force of up to 9,000 tons, making them suitable for producing large parts. Husky machines are used in the automotive, packaging, and medical industries, among others.

Sumitomo is a Japanese company that produces a wide range of injection molding machines for various applications. The company was founded in 1935 and has since grown to become a leading manufacturer of injection molding machines. Sumitomo machines are known for their high precision, reliability, and efficiency, and are used in the automotive, electronics, and medical industries, among others.

Demag Plastics Group is a German-based company that specializes in the manufacture of injection molding machines and systems. The company was founded in 1901 and has since grown to become a leading supplier of injection molding machines. Demag machines range in size from small, desktop machines to large, high-end machines with a clamping force of up to 10,000 tons. Demag machines are used in the automotive, packaging, and medical industries, among others.

Apart from injection molding machines, there are other companies that produce molds, the tool used in the injection molding process. Molds are typically made of steel or aluminum and are used to shape the molten material into the desired shape. Mold manufacturers include companies such as Mold-Tech, Mould-Tek Industries, and Hi-Tech Mold Engineering.

Mold-Tech is a US-based company that specializes in the production of injection molds for the automotive, appliance, and consumer products industries. The company was founded in 1965 and has since grown to become a leading supplier of injection molds. Mold-Tech offers a wide range of services, including design, engineering, and prototyping, to help its customers create high-quality molds.

Mould-Tek Industries is an Indian company that produces molds for the injection molding process. The company was founded in 1982 and has since grown to become one of the largest mold manufacturers in India. Mould-Tek produces molds for various industries, including automotive, electronics, and packaging, among others.