Dual Color EVA Injection Foaming Machine

This series of EVA injection molding machines features an advanced injection system in which the metering mechanism is monitored by a potentiometer and calculated through PLC and PC control to ensure precise material dosing. The injection carriage adopts linear guide rails combined with a braking motor and is driven by a frequency inverter for high-speed positioning, while a rotary encoder is used for accurate position detection. The clamping system is designed with a two-stage fast mold opening and closing mechanism, equipped with full mold closing detection, and a low operating platform to accelerate stroke and allow flexible use of different mold types. The control system is based on a Windows-style operating platform with a graphical human-machine interface and touchscreen display, enabling real-time monitoring of feeding speed, injection volume, injection time, injection temperature, vulcanization time, and production output, making operation simple and user-friendly. The modular PLC system ensures clear functional structure and high reliability.

The hydraulic system adopts a servo-driven hydraulic control system, improving safety, stability, and reducing noise, while enabling precise multi-stage pressure and flow control through the computer system. The machine is designed with energy-saving features, including insulated mold stations that do not require water cooling and an air-cooled hydraulic system, significantly reducing energy consumption. A servo energy-saving system further reduces power consumption by approximately 30%.

For the vacuum hood version, the machine is equipped with a multifunctional vacuum injection system that effectively improves defects such as scorching in sensitive products. The fully enclosed high-efficiency vacuum system ensures stable product quality and excellent surface appearance. The energy-efficient design incorporates high-performance insulation materials and eliminates the need for water circulation. The machine footprint is optimized to save space and improve factory utilization. It supports both vacuum hood mode and standard single-color injection mode, which can be operated independently or simultaneously. The system offers high flexibility, allowing the production of single-color, dual-color, and multi-color shoe soles and slippers.

The product range includes models such as SC-906L2H-DS, SC-908L2H-DS, SC-910L2H-DS, SC-906S2D, SC-908S2D, SC-910S2D, SC-906L2G, SC-908L2G, SC-910L2G, as well as SC-904, SC-906, SC-908, and SC-910, all designed for EVA material processing. These machines are available in configurations ranging from 4 to 10 stations, with clamping forces typically between 100 and 240 tons. Mold opening stroke ranges from approximately 350 mm to 390 mm, with mold sizes such as 290×550×2 or 330×600×1/2 sets. Screw diameters vary from φ60 mm to φ75 mm, with theoretical injection volumes from 700 g up to 1450 g. Injection pressure reaches up to 1000–1100 kg/cm², with injection speeds up to 10 cm/sec and screw speeds ranging from 0–110 to 0–165 rpm. Heating systems include barrel temperature control with 4 zones and mold heating power ranging from approximately 50 kW to 122 kW. Total installed power ranges from about 90 kW to 186 kW, while oil tank capacity is typically around 1000 liters. Machine dimensions vary from approximately 6500×5000×2950 mm to 13200×5500×2800 mm, with machine weights ranging from about 20,000 kg to 47,000 kg depending on configuration. These machines are designed to deliver high precision, energy efficiency, and stable performance for large-scale footwear production.