RUBBER INJECTION MOLDING MACHINES
Available in the following sizes:
Clamp Force: 25ton/40ton/63ton/75ton/100ton/110ton/150ton/160ton/200ton/220ton/300ton/400ton/450ton/600ton/800ton/1200ton/1500ton/2500ton
Injection Volumes: 100cc/160cc/400cc/630cc/1000cc/1600cc/2000cc/3000cc/4000cc/6400cc/8000cc/9000cc/2500cc
Sanyu designs and manufactures advanced rubber injection molding machines built for precision, consistency, and long-term reliability. With decades of engineering experience and a strong support presence in North America, Sanyu systems are used by manufacturers who need stable processes, repeatable results, and reduced production risk.
Whether you are molding automotive parts, medical components, or high-performance elastomer parts, Sanyu machines are engineered to improve cycle control, reduce defects, and increase overall efficiency. Click here to learn more about Sanyu.
Whether you are molding automotive parts, medical components, or high-performance elastomer parts, Sanyu machines are engineered to improve cycle control, reduce defects, and increase overall efficiency. Click here to learn more about Sanyu.
Vertical rubber injection molding machines
Standard rubber injection presses 50-450ton
Standard rubber injection presses 50-450ton
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High Performance (VJ model)
The VJ is Sanyu's high-performance machine range, and it's their flagship vertical rubber injection molding line. The STI-VJ type features a low price point, energy-saving design, low noise output, and increased efficiency. The VJIII generation adds several advanced capabilities:
Available models include the 200VJIII (200 ton clamp, 1600cc injection volume), 250VJ (250 ton clamp, 650×650mm platen), and 400VJ (400 ton clamp, 4000cc injection volume). The VJ series can also be paired with linear pick-and-place automation. |
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High Efficiency (VC model)
The VC is Sanyu's high-efficiency machine range. It is positioned as the more compact and cost-effective option within the vertical injection lineup. Available models:
The VC shares the same platen size and daylight as the VJIII but uses a smaller 35mm screw (vs. 50mm on the VJIII), suggesting it's tuned for efficiency and lower-volume or simpler part applications rather than maximum throughput. |
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Large Scale (VS model)
The VS series is Sanyu's large-scale, performance-oriented machine range. It is designed for heavy-duty production requiring larger platens and higher injection volumes. Available models include:
Compared to the VJ 400-ton model (which uses a 50mm screw and runs at 160 cc/s), the VS series uses a larger 60mm screw diameter — indicating it's optimized for higher-volume throughput of larger or more demanding rubber parts, with the 450VS offering the widest platen in the lineup. |
vacuum rubber injection molding machines
Remove trapped air for better quality and consistency
Remove trapped air for better quality and consistency
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Vacuum Injection Presses
STI-1.6-220VR-V
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STI-1.6-200VJ-V
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Special design RUBBER INJECTION MOLDING MACHINES
Silicone, servo, automation, horizontal, c-frame, Multi Tool, etc.
Silicone, servo, automation, horizontal, c-frame, Multi Tool, etc.
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Vent Extrusion
The vent extrusion injection molding machine is designed to remove trapped gases, moisture, and volatiles from the rubber compound during plasticization, resulting in improved material quality, reduced porosity, and more consistent finished parts.
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Automated Rubber Injection Molding Machines
The automated injection molding system integrates robotics and auxiliary equipment to handle tasks such as insert loading, part removal, deflashing, and inspection, reducing labor requirements while improving consistency and cycle time.
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Rotary Rubber Injection Molding MachinesThe rotary (multi-station) injection molding machine utilizes an indexing table with multiple stations that allows loading, curing, and unloading to occur simultaneously, significantly increasing production efficiency and throughput for high-volume applications.
Sanyu has developed various rotary systems with 2, 4, 6, 8, 16 and 32 stations. |
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Servo-Driven Rubber Injection Molding Machines
The servo-driven (hybrid) injection molding machine uses a servo-controlled hydraulic system to deliver precise control over injection pressure, speed, and volume, resulting in improved shot-to-shot consistency and reduced energy consumption.
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Horizontal Rubber Injection Molding Machines
The horizontal injection molding machine features a horizontal clamping configuration that allows for easier integration into automated production lines and is well suited for continuous processing and certain part geometries.
Sanyu offers from 15ton to 150ton clamping pressure. |
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Silicone Rubber Injection Molding Machines
The silicone injection molding machine is specifically engineered to process silicone materials, including both high-consistency rubber (HCR) and liquid injection molding (LIM), enabling the production of high-performance components for medical, consumer, and high-temperature applications.
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C-Frame Rubber Injection Molding Machines
The C-frame injection molding machine incorporates a three-sided open design that provides maximum accessibility to the mold area, making it ideal for operations requiring manual loading, insert placement, or specialized tooling setups.
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Standard Features
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Machine Options
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