Rip Saws
Rip saws will fall into two sections; one is the straight line rip saw, and the other is the multiple rip saw.
A straight line rip saw is a rip saw that only has one single blade. A straight line rip saw is normally used in conjunction with a clamp carrier, that is, when a manufacturer wants to glue pieces of wood together to make panels. A straight line rip saw will give a good, clean cut and will allow what is commonly called a glue joint cut. When an operator cuts rough pieces of lumber through a rip saw, the next cut piece can be butted together with the first, glue applied, put into a clamp carrier and when dry will give a perfectly good glue joint for the manufacture of panels. The same again would apply if pressed in a high frequency press. To get a good glue joint on a straight line rip saw, the chain has to be in good condition, that is, the little protruding points on the chain must not be flat. The chain on the machine drives the piece of wood through the saw blade and holds it in place with the aid of pressure rollers from the top of the piece so that the piece does not move while it is being cut. This will determine how good a rip saw is for glue jointing.
In some cases, manufacturers will rip up wide, long lumber planks into single long strips. If these pieces will be going into a secondary operation such as a moulder, a glue line joint or glue joint machine will not be required. In this case a straight line rip saw that does not have a perfect chain, will be good enough and will be far less expensive.
To summarize, straight line rip saws actually have two categories; a straight line rip saw that will give a glue joint cut; and a straight line rip saw that will give a rough cut good enough for going into secondary operations.
MANUFACTURERS OF THESE MACHINES INCLUDE:
Activa, Bauerle, Boss, Diehl, Ekstrom Carlson, Extrema, IMC, Kikukawa, Lobo, Mattison, Mereen Johnson, Northtech, Takekawa, Tos, Wadkin.
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