Press Machines for Woodworking Industry.

The pressing machine is the machine to help the gluing process in the woodworking industry. The pressing machine is needed to press and hold the wood pieces to keep them stayed until the glue is dry and a strong bond is formed. Almost all timber must go through the gluing process in the woodworking industry. The timber logs are cut and dried to form board panels in certain sizes. Cutting the log is the first important process in the woodworking process. The wood pieces with small sizes will dry faster than the wood logs with big sizes. The dry wood panel boards are then cut and glued together to make wider and bigger panel boards to be formed as furniture components that will be used to make any product. The joining of wooden boards is done using glue when the press machine is needed. 

The press machine is used to keep the wood close together during the hardening process of the glue. According to the process of the glue drying, there are two types of press machines: the hot press and the cold press machine.

manual cold press for rotary clamping

Cold press machine.
 
A cold press machine is a machine press that is not equipped with a heater. The machine only put pressure on the pieces of wood to keep them close together at the drying process of the glue. There are some types of cold press machines according to the pressure generated: hydraulic press, manual press, or vacuum press.

A manual press is a machine that uses a manual job to do the setting of the pressure on the wood pieces. There are 2 metal plates with holes to place some screws. The wood pieces are covered with glue, then arranged and clamped with the metal plate. The plates are then tightened and closed together by tightening the screws. Once the glue is dry and a strong bond is established, then the plates are unscrewn and taken off. It is the most simple laminating machine yet effective enough to help the process of gluing wood pieces. The pressing is determined by the screw tightening that is done manually. Therefore, the result is strongly influenced by the performance of people who do it.
The hydraulic press is a more modern machine for laminated wood. As well as a manual press, this tool has two plates to press the wood pieces attached, but the machine uses hydraulic tools to suppress the iron plates. The hydraulic tool is more stable and reliable to make the standard pressure more consistent. The machines are available in various sizes and models. To make the big size panel board, then the machine with a large plate is needed, while the small size machine can be used to manufacture laminated boards with a small size.
Vacuum press machines work by using vacuum force to pull the pieces of wood that are being attached. The vacuum press, however, is not as strong as the hydraulic press or even the manual press. These machines are specially used to attach the veneer to the small panels on uneven surfaces when the hot press or cold press cannot be used.

hydraulic press

Hot press machine.
 
It is quite a sophisticated machine press. This machine is equipped with a hydraulic press and the heater to heat the glue in the gluing process. This heat will speed up the drying process so that the gluing time can be accelerated. The gluing process that needs about 30 minutes by using a cold press can be done in about 5 minutes with the hot press machine.
The machine uses a hot plate to heat and press the wood pieces that are being attached. The metal plate temperature can be set according to the temperature needed by the gluing process. This machine is available in various sizes to do a variety of wood gluing processes. But the most widely used is for attaching wood veneer in the manufacture of plywood or wood veneered panels. The veneer sheets are coated with glue and attached with his core (mdf, particle board, laminated wood, or other veneer sheet) put in a mat and then pressed and heated by a plate on top to obtain a strong bond. The hot press is the most effective tool for making panel boards with big sizes; long, large, and wide panels. But since it uses a flat and rigid metal plate, the machine has limitations to do the flat panel only.

hot press machine

High-frequency press machine

The high-frequency press machine is a machine that uses electromagnetic waves to bond and cure adhesives. It's also known as a radio frequency (RF) press or radio frequency heating machine. With this technology, the gluing process can be done faster and better. The high-frequency press allows the heating process to run quickly and evenly. The use of electromagnetic waves will make the heat transfer process take place quickly and with a more even temperature. The heating and drying process of the glue will take place quickly and more uniformly. Finally, the better bond quality and a faster and more efficient work process can be expected by this machine.