500-Ton Standard Frame Plywood Cold Press Form China MINGHUNG

This equipment is the 500-Ton Standard Frame Plywood Cold Press, a large four-column three-beam frame-type cold press specifically designed for industrial high-volume panel production. The equipment is built around the core design philosophy of "high pressure, large dimensions, high rigidity, and high stability," meeting the stringent cold pressing requirements of extra-large board blanks in the fields of plywood, building formwork, and furniture panels.

(1) Main Frame (Frame-Type Structure)

Integrally welded using high-strength Q345 high-quality steel plates, with cross-section dimensions optimized through finite element analysis to ensure minimal frame deformation under 500-ton full-load conditions.

The upper and lower beams and columns form a closed frame structure with reasonable force distribution and strong resistance to eccentric loads.

After welding, the entire frame undergoes stress-relief annealing in a large gas furnace to completely eliminate internal welding stresses, ensuring long-term dimensional stability.

All critical mating surfaces are precision-machined in a single setup on a large CNC gantry milling machine, ensuring parallelism, perpendicularity, and positional accuracy.

(2) Fixed Worktable (Lower Platen)

Large thickness and high rigidity, with the working surface precision-ground to achieve flatness of ≤0.03mm/m.

The working surface offers high hardness and excellent wear resistance, remaining scratch-free under long-term use.

(3) Moving Beam (Upper Platen)

Manufactured from high-strength steel plates like the fixed worktable, with precision-machined working surfaces.

Equipped with high-precision guide devices at all four corners to ensure horizontal accuracy and repeatable positioning accuracy during lifting and lowering.

Connected to cylinder piston rods via spherical hinges or rigid connections to ensure uniform pressure transmission.

(4) Main Cylinder System

Equipped with 2 large-diameter plunger or piston type main cylinders (Φ320mm or Φ360mm), with a total output force of 500 tons.

Cylinder bodies are made of high-quality seamless steel tubes with honed internal surfaces achieving a surface finish of Ra≤0.4μm, providing wear and pressure resistance.

Piston rods are hard chrome-plated for high surface hardness, corrosion resistance, and low friction.

Seals are selected from internationally renowned brands to ensure long-term leak-free operation.

(5) Hydraulic Power Unit System

Uses a large-displacement axial piston pump or vane pump coupled with a high-power motor (18.5kW/22kW) to deliver ample and stable hydraulic power.

Integrated hydraulic valve groups, providing precise control and fast response.

Equipped with a large-capacity oil tank for effective heat dissipation and stable oil temperature.

Fitted with return oil filters and air breathers to maintain system oil cleanliness.

Optional oil cooler (air-cooled or water-cooled) available for high-temperature environments or continuous heavy-load operations.

(6) Electrical Control System

Uses a well-known brand PLC as the core controller for fully automatic sequence control.

Equipped with high-precision pressure sensors and displacement sensors for real-time monitoring of pressing force and platen position.

The operation panel features push buttons or a touchscreen for setting process parameters such as pressure, holding time, and lifting speed.

Features automatic pressure holding, automatic pressure compensation, timed pressure release, and fault self-diagnosis functions.

Industrial communication interfaces reserved for data connectivity with host computers or MES systems.

(1) Powerful Pressure Output

With a massive 500-ton pressure capacity, this equipment easily handles the cold pressing requirements of large-format, multi-layer, high-density panels, particularly suitable for the production of thick panels such as building formwork and heavy-duty packaging boards.

(2) Excellent Pressure Uniformity

Symmetric arrangement of dual cylinders, combined with synchronous valve groups, ensures balanced pressure on both left and right sides. Coupled with the high-rigidity frame structure, pressure deviation at any point on the platen surface is controlled within ±5%, effectively preventing quality issues such as uneven board thickness and warping deformation.

(3) Large Opening Distance

With a maximum opening distance of 1200-1500mm, it not only meets the loading and unloading requirements of standard panels but also accommodates the insertion and removal of thick or assembled board blanks, providing ample operational space.

(4) High Production Efficiency

Optimized hydraulic circuit design enables intelligent switching among rapid descent, slow compression, automatic pressure holding, and rapid return. Short cycle times result in high daily processing capacity.

(5) Strong Continuous Operation Capability

With reasonable overall heat dissipation design and cooling devices for the hydraulic system, the equipment supports three-shift continuous production with stable non-stop operation, matching the rhythm of large-scale industrial production.

(6) Convenient Maintenance

The structural layout is well-arranged, with hydraulic and electrical components positioned in easily accessible locations, facilitating daily inspection, maintenance, and component replacement.

1. Customized Product Solutions

2. Comprehensive Pre-sales Technical Support

   Supply detailed technical data sheets, equipment drawings, product videos, and foundation installation drawings to help customers make accurate procurement decisions.

   Arrange factory site visits or online video inspections, allowing customers to directly observe the manufacturing process and quality control procedures.

3. One-stop After-sales Service System

   Installation & Commissioning: Dispatch experienced engineers overseas for on-site installation and commissioning guidance to ensure rapid production start-up.

   Operation Training: Provide systematic operation and maintenance training for customer operators and maintenance personnel.

  Warranty Service: Offer a whole-machine warranty of 12–24 months (extendable), with free spare parts and remote technical support for quality-related issues during the warranty period.

   Spare Parts Supply: Maintain a long-term supply of original hydraulic components, seals, electrical parts, and other full-range spare parts to ensure lifetime maintainability of the equipment.