DEKUMA RT SERIES
HIGH-PERFORMANCE RUBBER INJECTION MOLDING MACHINES
Dekuma RT Series rubber injection molding machines are industrial injection solutions developed specifically for the production of rubber components that require high volume output and high mechanical strength. Thanks to their robust press structure, stable injection control, and design optimized for long curing processes, the RT series is widely preferred in automotive, energy, infrastructure, and heavy industry applications.
Developed based on Dekuma's engineering expertise in rubber processing technologies, the RT series ensures reliable production of thick-walled and large-volume rubber parts that require high clamping force.
DESIGN STRUCTURE AND PRESS CONFIGURATION OF THE RT SERIES
Dekuma RT series machines operate according to the vertical clamping - vertical injection principle. This configuration ensures balanced material flow in large rubber molds and homogeneous pressure distribution inside the mold cavity.
Key design features include:
• High-rigidity, heavy-duty steel machine frame
• Reinforced press structure suitable for high-tonnage applications
• Clamping mechanism providing precise platen parallelism
• Mechanical durability designed for long curing cycles
• Structure optimized for high temperature and pressure resistance
This design makes the RT series an ideal solution for heavy-industry applications.
RUBBER INJECTION TECHNOLOGY AND OPERATING PRINCIPLE
In RT series machines, the rubber compound is plasticized under low shear stress. The screw and barrel geometry is designed to prevent premature vulcanization of the rubber. The prepared compound is injected into the mold under high pressure and forms the final part through extended curing.
Process steps include:
• Controlled plasticization of the rubber compound
• High-pressure injection
• Mold clamping under high clamping force
• Vulcanization and curing
• Automatic or semi-automatic part removal
This process ensures dimensional stability, especially for thick-walled and functional rubber components.
RT SERIES MODEL RANGE AND CLAMPING FORCE OPTIONS
Dekuma RT series is available with a wide range of clamping force options for applications requiring high tonnage.
Typical clamping force options include:
• 300 tons
• 400 tons
• 500 tons
• 600 tons and above (special configurations)
This tonnage range is suitable for large-size rubber molds requiring high injection pressure.
TECHNICAL AND NUMERICAL SPECIFICATIONS
Typical technical parameters of Dekuma RT series machines are as follows:
Clamping Force
• 3000 kN - 6000 kN
Injection Unit
• Injection volume: 300 - 2000 cm³
• Injection pressure: 1600 - 2200 bar
• Injection speed: multi-stage, finely adjustable
Screw Diameter
• 55 mm - 90 mm
Plasticizing Capacity
• 20 - 80 kg/hour
Mold Opening Stroke
• 600 - 1000 mm
Platen Dimensions
• 700 × 700 mm - 1000 × 1000 mm
Heating System
• Multi-zone barrel heating
• PID-controlled temperature management
These technical values can be customized according to part geometry and raw material type.
SERVO HYDRAULIC SYSTEM AND PROCESS STABILITY
The servo hydraulic system used in RT series machines provides high control accuracy in high-tonnage injection processes.
Key advantages include:
• Stable injection under high pressure
• Significant reduction in energy consumption
• Stable hydraulic oil temperature
• Quieter, vibration-free operation
• Extended service life of system components
This structure offers major advantages in the production of heavy rubber parts with long cycle times.
AUTOMATION AND INDUSTRIAL INTEGRATION
Dekuma RT series machines are designed for integration into heavy-industry production lines.
Supported integrations include:
• Robotic part removal systems
• Automatic insert and metal component placement
• Conveyor systems
• Vision inspection and quality monitoring
• Production data collection and reporting
These integrations ensure consistent quality in large-volume production.
APPLICATION AREAS
RT series machines are widely used in the following applications:
• Large-volume technical rubber components
• Automotive and industrial sealing elements
• Rubber components for energy and infrastructure sectors
• Vibration and shock-absorbing rubber parts
• Heavy-duty elastomer products
In these applications, the RT series stands out with high mechanical strength and low scrap rates.
ADVANTAGES OF THE DEKUMA RT SERIES
• Press structure suitable for high-tonnage applications
• Ideal design for large-volume rubber components
• Stable and repeatable production
• Low scrap rates
• Compatibility with automation and line integration
• Long machine service life and global service infrastructure
