Keep hand sanding to a minimum if required at all!
The 84 engineering 6mm, 19mm & 25mm plunge platens (sometimes referred to as 'waterfall platen') make the otherwise intricate task of grinding plunge lines and rounded corners simple and repeatable.
Our plunge platens use either a 6mm, 19mm or 25mm small wheel rather than a radiused edge for reduced friction. This equates to cooler grinding and increased belt life.
Designed to provide the best finish on your knife, there is minimal gap between the roller and the radiused edge of the platen. The result of this is that the 84 Engineering plunge platen will leave no transition between the wheel and 215mm flat platen, keeping hand sanding to a minimum if required at all.
We recommend the 6mm plunge platen for thinner blades and the 19mm and 25mm for integral bolster style blades. Our plunge platens use our standard 19mm spigot, so will easily swap out with the included platen on either the Shop Mate 2x48” or Shop Master 2x72” belt grinders / linishers using the standard tooling arms.
You can also use the plunge platen with a 84 Engineering small wheel arm, resting the back of the platen on the 2" idler wheel. Threaded holes on either side of the plunge platen allow for the spigot to be mounted to either side. This means the plunge platen can be used with the platen facing up or down depending on application or preference.
Please note, due to the size of the plunge platen wheels they should not be run at full speed on variable speed grinders. On our Shop Mate and Shop Master belt grinders they should only be run in the slow, green zone of your speed controller.
We recommend the use of light backed belts with these small wheels as heavy Y and Z weight belts do not easily bend to such a tight radius.
Our 3M Cubitron 726A belts are a perfect match for our Plunge Platens.
