The history of plastic injection molding can be traced back to the late 19th century, when John Wesley Hyatt and his brother Isaiah patented the first injection molding machine in 1872. Mass production of celluloid products such as combs and buttons. While pioneering at the time, these early plastic injection machines were rudimentary by modern standards and today's injection molding machines often required manual operation and lacked precision.
The mid-20th century saw significant improvements. It was in plastic injection technology that was stimulated by the demand for lightweight, durable and cost-effective materials in various industries. In 1946, James Watson Hendry introduced the first screw injection molding machine, revolutionizing the process by providing better control over injection speed, pressure, and temperature. This innovation laid the foundation for modern plastic injection molding machines that dominate today's manufacturing landscape.