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Add value to your sawn boards with Wood-Mizer edgers
Although best known as the pioneer of thin-kerf narrow band sawmills, Wood-Mizer manufactures a range of other machines to help customers add value to their products - including circular saw edgers.
By adding value to their products, Wood-Mizer customers can achieve higher prices and find new markets for their businesses. One of the easiest ways to do this is to offer accurately cut square-edged timber rather than waney-edged boards.
It is possible to produce square-edged material on a band sawmill by turning the log, but as every sawyer knows this takes time and effort. For maximum productivity, it is better to saw the log into waney boards on the sawmill, and then edge the boards on a separate machine designed for that purpose.
Wood-Mizer estimates that use of an edger after the sawmill increases overall productivity by 20-30%.
For cutting quality edged timber with high productivity, Wood-Mizer recommends the following layout. Logs are first converted into a two-sided cant, underslab board and slabs on the sawmill. A multirip saw then cuts the cant into edged boards and slabs which are transferred to the sorting area, while the waney edge boards and slabs from the sawmill are moved to an edger where they are edged to width and transported to the sorting area.
In this layout, the capacity of the edger and multirip is usually enough to serve two or more band sawmills.
In developing the EG300, Wood-Mizer engineers aimed to combine the functions of an edger and a multirip in a single
For use as an edger, the machine is fitted with two circular sawblades so that both edges of the boards are sawn in one pass. One of the sawblades is fixed and the other is movable - using the electronic Setworks system to accurately pre-set the required width of edged board. Optional positioning lasers can be fitted, which indicate cutting lines on the board to assist the operator in setting precise width for maximum recovery.
The EG300 can also be used as a multirip, with five circular sawblades. In this configuration four of the blades are fixed for cutting standard widths and the fifth is movable.
Changing the EG300 between edger and multirip operations does not take long, and this flexible design offers significant benefits, allowing customers to react quickly to changing demand.
All controls, including Setworks, are on the moveable operator console which can be positioned in the most convenient place near the machine. There are driven rollers for infeed/outfeed, and feed speed is smoothly adjustable from 0-25 m/min.
Modular construction in three separate parts - saw unit, infeed table and outfeed table - ensures easy transportation and handling.
Wood-Mizer’s EG300 edger/multirip has been in production for more than five years and during this time it has been installed by many woodworking companies. Payback times confirm the efficiency and productivity of this technology.
EG400 industrial edger
For higher volume requirements and fast, accurate cutting of larger timber, Wood-Mizer developed the EG400 industrial edger. This machine handles boards up to 100mm thick and 900mm wide and is designed specifically for edging boards to standard widths.
The EG400 has two 400mm diameter circular sawblades. Both blades are adjustable, moving outward from the centre to allow use of an optional tailer. The machine is equipped as standard with lasers that indicate the line of cut for both blades to ensure accuracy, increased yield and grade. All controls are on the operator console, which can be moved to the most convenient position close to the machine.
The sawblades have replaceable carbide-tipped teeth. This means that if a tooth is damaged it can easily be replaced and worn teeth can also be replaced. With a normal carbide-tipped blade it is difficult to repair if a tooth is broken, and resharpening the blade is expensive. In addition, the diameter of a normal blade gradually reduces after regrinding/resharpening (with replaceable teeth the diameter is always the same). The teeth can be replaced without having to remove the blade from the arbor in the EG400.
This machine cannot be transformed into a multirip like the EG300. It is designed as a dedicated edger for increased production, offering high feed speed due to the stability of the blades. The operator can choose between three feed rates - the lowest is equal to the maximum possible speed on the EG300. In addition, the EG400 automatically adjusts feed speed depending on board thickness, so that it always performs at optimum productivity.
Technical parameters of both machines are listed in the table, which makes it easy to compare them and decide on the best option for individual requirements. When choosing an edger, woodworkers often pay attention to the weight - with heavier machines believed to offer higher performance features. In the case of Wood-Mizer's machines, the EG400 weighs almost twice as much as the EG300.
Comparison of Wood-Mizer edger performance specifications
If you are interested in more details about Wood-Mizer's products or services mentioned in this article, you may:
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