For manufacturers in the automotive, energy, and industrial sectors, understanding the mechanics of production is the first step toward optimization. A vertical rubber injection molding machine is a sophisticated piece of equipment designed to transform raw elastomer compounds into high-precision components like seals, gaskets, and vibration absorbers. At Dekuma, our RV series represents the pinnacle of this technology, combining German engineering with advanced automation.
The Injection Process: From Raw Material to Finished Part
The operation of a vertical rubber injection molding machine follows a precise, cyclical sequence:
Plasticization: Raw rubber (such as EPDM or Nitrile) is fed into the machine. Inside the barrel, a specialized screw rotates to heat and shear the material, turning it into a consistent, molten state.
Injection: Once plasticized, the material is forced into the mold cavity. In the Dekuma RV series, this is handled by a high-precision injection unit capable of maintaining an injection pressure of 1750 bar, ensuring even the most complex mold geometries are filled completely.
Vulcanization: The mold is held closed under immense pressure. The heating plates maintain a stable temperature to trigger vulcanization, the chemical process that gives rubber its final durable properties.
Ejection: After the curing time is complete, the vertical clamping unit opens, and the finished part is removed, often with the assistance of automated ejector pins.
Precision Control with Dekuma Technology
What sets a vertical rubber injection molding machine from Dekuma apart is the level of control during these stages. Precision is critical; even a minor deviation in temperature or pressure can lead to defects like “flash” or “short shots.”
Our machines utilize B&R S98 controllers and high-precision encoders to monitor pressure and flow in real-time. This PID-controlled feedback loop ensures high repeatability, meaning the first part produced in a shift is identical to the thousandth. Furthermore, the RV series features a dual-seal clamping cylinder design to prevent oil leakage, ensuring a clean and reliable production environment.
Efficiency and Sustainability in Manufacturing
Modern B2B operations demand more than just precision; you also require efficiency. The vertical rubber injection molding machine models provided by Dekuma are engineered to minimize waste. The RVSe series, for example, utilizes servo-driven hydraulic technology. Unlike traditional systems that run at full power constantly, the servo motor only provides the exact pressure and flow required for the current stage of the cycle. This eliminates reactive energy consumption and can reduce electricity costs by up to 40%.
By integrating a vertical rubber injection molding machine into your facility, you are investing in a “total solution” that prioritizes high output and long service life. Dekuma remains committed to helping global partners maximize value through rigorous German quality standards and innovative rubber processing technologies.