SMC Battery Shell Molding Hydraulic Press

SMC is considered an advanced thermoset composite material, primarily composed of glass fiber, unsaturated polyester resin, fillers, low-shrinkage additives, and various additives. Its unique properties include lightweight and high strength, insulation and thermal insulation, corrosion resistance, excellent design flexibility, and dimensional stability. These characteristics make SMC ideal for manufacturing battery casings for new energy vehicles. It provides adequate protection while meeting the demand for lightweighting.

The production of SMC new energy lithium battery casings, PCM new energy battery casings, and composite new energy battery cases requires large-tonnage composite material hydraulic presses. Commonly used hydraulic presses are 800-ton, 1000-ton, 1500-ton, 2000-ton, and 2500-ton, combined with molds for single-stage compression molding. As a professional hydraulic press manufacturer, PDH offers both four-column and frame-type presses.

Our SMC battery shell molding hydraulic presses are primarily used for the molding and pressing of SMC sheet molding compound, meeting the requirements of the compression process. The machine’s temperature, curing time, pressure, and speed are tailored to the process characteristics of SMC/BMC materials. PLC control is adopted, which is convenient to operate and has adjustable working parameters. This equipment can be equipped with an in-mold core pulling control system and a preset in-mold ejection control system, which can realize fast descending, segmented pressing, segmented deflation, working, pressure holding, slow mold opening, fast return, slow demoulding, fast ejection, ejection dwell, fast return, and other actions, and the temperature can be controlled at multiple points.

Working Principle of the SMC Battery Case Molding Hydraulic Press

Its operating principle is based on a hydraulic transmission system. After the workpiece is placed in the mold, a hydraulic pump delivers oil to the hydraulic cylinder, which begins to move. Under high pressure, the composite material is uniformly pressed in the mold, forming and solidifying it. Throughout the entire process, the hydraulic system controls the flow of oil according to the preset pressure and speed, ensuring that the composite material is molded to the desired shape.

Features of the SMC Battery Shell Molding Hydraulic Press

1. Structural Design Features

① Hydraulic Presses: Four-column or Frame Structure:

SMC hydraulic presses typically utilize a four-column or frame structure, which offers strong resistance to off-center loads and high rigidity, ensuring stability and precision during the molding process.

The frame-type press body, designed through finite element structural analysis and optimization, features a compact structure, excellent rigidity, and high precision, meeting the demands of high-precision molding.

② High-rigidity, High-precision Components:

Main components, such as beams and columns, are made of high-quality materials and undergo a tempering and vibration aging treatment to eliminate internal stress and prevent deformation.

The surfaces of the worktable and slide beams are precision-machined to ensure flatness and parallelism, thus guaranteeing the accuracy of the press.

2. Hydraulic System Features:

① High-Efficiency Hydraulic Control System:

The hydraulic control system utilizes a cartridge valve integration system or a two-way cartridge valve integration system, reducing leaks, ensuring reliable operation, and providing a long service life.

High-quality sealing rings are used in the hydraulic cylinder seals to ensure the hydraulic system’s tightness and stability.

② Adjustable Pressure and Pressure Holding Function:

SMC’s battery case molding presses feature both constant pressure and fixed stroke molding processes. The operating pressure and stroke can be adjusted within a specified range.

The pressure holding delay function maintains constant pressure during the molding process, ensuring product curing and quality.

3. Control System Features

① Servo CNC System:

Some high-end SMC hydraulic presses utilize a servo CNC system, achieving full digital control of pressure, speed, and stroke, offering enhanced ease of operation and higher precision.

The advantages of servo systems include low noise, compact size, energy efficiency, and the ability to adjust process parameters in real time to meet the production needs of different products.

② PLC Touch Screen Control:

The control system utilizes a centralized PLC touch screen control system with multiple operation modes, including adjustment, manual, and semi-automatic. The user-friendly interface is easy to learn and use.

The PLC device can store multiple sets of mold pressing parameters, allowing users to quickly switch process parameters based on different products.

4. Safety and Stability

① Comprehensive Safety Features:

The SMC battery shell molding hydraulic presses feature dual-touch operation and upper and lower limit switches to ensure safe operation.
Safety support rods are installed on the sides of the machine body to provide safety during loading, unloading, and maintenance.

② Stability and Reliability:

The SMC battery case forming presses undergo rigorous quality control and testing to ensure long-term reliability and low failure rates.

Applications of SMC Battery Shell Forming Machine

SMC battery case pressing machines are primarily used for the hot press molding of SMC (sheet molding compound) composite battery cases. They are widely used in:

• New Energy Vehicles: They produce power battery cases and battery covers with excellent insulation, heat resistance, and lightweight properties.
• Energy Storage Systems: They are used to produce large-scale energy storage battery module cases that meet the corrosion, moisture, and UV resistance requirements for long-term outdoor use.
• Communications and Power Equipment: They are used to manufacture UPS power supply cases and distribution box battery compartments with high strength and excellent electrical insulation.
• Rail Transportation and Shipbuilding: They produce high-safety, flame-retardant battery cases for backup power systems in electric trains and ships.

This equipment enables integrated molding of battery cases, improving product sealing and safety, making it a key component in the manufacture of high-performance composite battery cases.

PDH is a professional hydraulic press factory in China, specializing in high-performance composite compression molding presses. Our press opening height, stroke, and work surface dimensions can be customized to meet your specific needs. If you have a hydraulic press requirement, please contact us today.