1. Rapid Heating System

High-efficiency thermal oil heating enables a 30% faster temperature rise compared to traditional steam heating.

Equipped with intelligent temperature control, reaching set temperature quickly and maintaining a tolerance of ±2°C, ensuring stable bonding quality.

2. 400-Ton High Pressure Structure

Main cylinder adopts high-precision plunger design, with a maximum pressure of 400 tons, suitable for thick or hardwood plywood pressing.

Heavy-duty frame or column structure ensures high rigidity, low deflection, and long service life.

3. 20-Opening Multi-Layer Design

20 openings allow multiple plywood sheets to be pressed simultaneously, greatly increasing output per cycle.

Reasonable spacing between layers facilitates automatic or manual loading/unloading, and can be integrated with a board loader for continuous production.

4. Thermal Oil Heating System

Equipped with an independent thermal oil boiler or external heat source, offering high thermal efficiency and low operating cost.

Optimized flow channels inside hot plates ensure uniform surface temperature, minimizing board warping.

5. Hydraulic and Control System

Dual/triple pump hydraulic system provides smooth and controllable fast closing, pressing, holding, and pressure relief.

Optional PLC touchscreen control system allows digital setting and automatic operation of pressure, temperature, and time parameters.

6. Safety and Maintenance

Multiple safety protections against overpressure, overtemperature, and oil leakage.

Hot plates precision-machined for wear and corrosion resistance, easy to clean and maintain.

This hot press operates on a thermal oil circulation heating and hydraulic pressing principle. The working cycle is as follows:

1. Heating Phase  

  Thermal oil is heated to the set temperature (typically 120–200°C) by an external boiler and circulated through internal channels of the hot plates. Each layer heats up rapidly and uniformly. The rapid heating feature reduces standby time by over 30%.

2. Loading Phase  

  The operator or an automatic board loader places glued veneer stacks into each of the 20 openings. Each stack is positioned between two hot plates.

3. Closing & Pressing Phase  

  The hydraulic system activates the main cylinder, pushing the moving platen upward to close all layers simultaneously. Once the pressure reaches the set value (up to 400 tons), the system enters pressure-holding mode, maintaining stable pressure to promote chemical crosslinking of the adhesive under high temperature and pressure.

4. Holding & Curing Phase  

  Under set temperature and pressure, the press holds for a certain duration (depending on board thickness and adhesive type), ensuring full curing of the glue line and a dense internal structure of the panel.

5. Pressure Release & Opening Phase  

  After holding, the hydraulic system slowly releases pressure. The moving platen descends, and all layers open naturally. The finished plywood sheets are removed either manually or by an unloading device.

6. Cooling Phase (Optional)  

  Some models include a cooling function, switching to cold thermal oil circulation to accelerate temperature reduction, preparing the press for the next loading cycle.

Hot press machine picture