The Disc Brake Bonding Press manufactured by Raloid Tool Company, Inc. specifically designed for the application of heat reactive type disc brake insulators.
The standard Model SE- DP2 Press can be ordered with up to 10 stations, each one separate and apart from the others, each with its own air cylinder, its own timer, its own heated platen, and its own sliding locator block.
Each heated platen, made of pure copper for optimum heat conduction, is heated with a 920 watt heating element. The platen is shaped to the particular brake shoe assembly being used, and is independently thermo stated and provided with a solid state temperature control.
An adjustable solid state timer on each station is actuated when the air cylinder forces the hot platen down on the shoe, and it provides precisely the time cycle cure prescribed.
Locator blocks are provided for each shoe number. These are necessary to locate the shoe on the press relative to the shaped anvil. The blocks are mounted on slides. These slides pull out from under the hot anvil, toward the operator providing easy and convenient loading and unloading.
In operation, the operator places a shoe in the locator block on the slide which has already been pulled toward him. He then places a pre-cemented insulator atop the shoe. He pushes the slide back under the anvil, and pushes the actuating button. To insure accuracy, a micro-switch connected to the slide assembly will not permit actuation of the air cylinder until the slide is properly positioned under the platen. The actuating button forces the heated anvil onto the shoe and starts the time cycle. After the set time, the anvil automatically lifts away from the shoe.
The production output of the 10 station SE-DP2 press depends entirely upon the speed with which the operator loads and unloads the locator blocks. The theoretical maximum with the prescribed 100 second cure and zero loading time is 360 pieces per hour. Should the operator take 5 seconds per change, the production would be 350 per hour; at 10 seconds per change, the production would be 340 per hour.
It is safe to say that loading times of this magnitude are practical and production numbers of its size can be achieved. With a change time of 10 seconds, one operator can easily take care of two 10 station machines with a total production of over 600 pieces per hour.
IMPORTANT: Specific processes, equipment, and technical expertise are required for the highly specialized business of bonding friction materials. It is NOT a job for amateurs.