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Wood-Mizer's latest RazorTip sawblade
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Wood-Mizer's latest RazorTip sawblade Wood-Mizer's new RazorTip sawblade combines the proven performance of the company's narrow bandsaw steel with the wear-resistant properties of Stellite.

In developing RazorTip, Wood-Mizer set itself the goal of making Stellite-tipped blades available to all sizes of customer - from large commercial sawmills to smaller businesses, estate owners and farmers - by reducing the cost of manufacturing and maintenance compared with other Stellite-tipped blades.

"RazorTip is an advanced blade for cutting very dry material like reclaimed or recycled timber, as well as abrasive wood with high silica content and tough, dense hardwoods", said Richard Vivers, CEO of Wood-Mizer Industries. "In these types of extreme applications, 'normal' blades struggle to get the job done because they become dull quickly - resulting in loss of accuracy, surface quality and productivity - and have to be changed frequently.

"With RazorTip the teeth are tipped with Stellite, which is a cobalt-based alloy that is highly wear-resistant. The blade therefore cuts for longer before it needs resharpening, producing accurate cuts with a quality surface finish and improving productivity by reducing the amount of downtime for blade changing".

Stellite-tipped bandsaw blades are not new - but what is new is the method used by Wood-Mizer.

Traditionally, Stellite is applied to the tips of unset or 'straight' teeth and is then shaped - similar to the shape of a 'swaged' tooth - to provide the necessary side clearance or kerf. The Stellite tip then has to be ground on the sides, face and top to the final required shape and finish. The processes of applying and sharpening the tips require the use of specialist equipment.

In developing RazorTip, Wood-Mizer wanted to reduce the cost of manufacturing and maintaining blades in order to make them affordable to a wide range of customers, from smaller to large businesses.

"To achieve this, Stellite is applied to the tip of the tooth and is then ground straight or parallel to the sides of the tooth", said Richard Vivers. "Side clearance is achieved by setting the teeth in the normal way, and the narrow kerf is the same as on our other blades which ensures minimal wastage and high yield during sawing.

"Our process means that less quantity of the expensive Stellite is used compared with traditional blades - without any adverse impact on cutting performance - and in addition RazorTip blades can be maintained using our conventional CBN sharpening machinery and standard setters. Customers without their own sawshop equipment can use Wood-Mizer's ReSharp service".

With the launch of RazorTip, the company has developed new branding to more clearly identify the range of blades available. SilverTip is the new name for the well-established 'standard' range of high carbon steel blades; DoubleHard is the advanced blade for industrial markets; and RazorTip is the top of the line.

Several customers in Europe, Asia and other parts of the world are already testing RazorTip blades, and Wood-Mizer recommends that all customers should buy a few blades for applications where normal blades are not getting the job done. Although developed for hard-to-cut timbers, it is possible that RazorTip also offers benefits when cutting normal hardwood and softwood, through longer running times and less downtime for blade changes.

Wood-Mizer has also developed a new 7 Degree tooth profile, which has a greater hook angle and tooth height. It also has a larger gullet for more efficient removal of sawdust, which allows feed rates to be increased while maintaining the quality of the sawn material.

The 7 Degree profile is available on DoubleHard and RazorTip blades. A sawmill in Hamburg, Germany, is using RazorTip blades with the 7 Degree profile and is cutting six times more timber compared with the normal DoubleHard blade between resharpenings.

Wood-Mizer started manufacturing its own blades more than 20 years ago because the company was unhappy with the quality of existing blades and believed that they hampered the performance of its sawmills.

"Our goal is to produce the optimum narrow band sawblade for fast, accurate, high-yield production", said Richard Vivers. "That same approach has been used to develop RazorTip and the new 7 degree profile - providing customers with a wider choice of blades to suit different requirements.

"Sales of our blades are increasing rapidly to customers using many different makes of sawmill for a wide variety of applications. To meet this demand and ensure that we continue to drive ahead with blade technology, significant investment has been made recently in buildings and blade production lines at our European headquarters site in Poland, in order to increase capacity".

To learn more about Wood-Mizer's blades read the stories below:
- More information about RazorTip blades.
- How to ensure the bandsaw blade life.
- Sharpening troubleshooting.


If you are interested in more details about Wood-Mizer's products or services mentioned in this article, you may:

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