Darex drill sharpener

Published: 01 September 2008  12:00 AM
Industry Channel: None
Source: The Engineer Online
Company: 1st Machine Tool Accessories Limited

27 August 2008: Leading workholding systems and machining accessories supplier
1^st Machine Tool Accessories (1^st MTA) has announced a 20% discount offer on its top-of-the-range Darex XPS-16 CNC drill sharpener until the end of the year. A 90-degree upgrade package worth £998.00 will also be supplied free of charge with every XPS-16 ordered.

As with all Darex sharpeners, having the XPS-16 available in-house 24 hours a day offers users a rapid payback. Whether replacing tools or sending them out to be resharpened, the administrative costs of purchasing, issuing payment and stocktaking are eliminated. In many machine shops, it is also the most experienced (and expensive employees) who are asked to resharpen ‘emergency’ drills by hand. The unit will therefore pay for itself many times over in a short period of time.

Representing the ultimate in precision, simplicity and productivity, the XPS-16 offers sophisticated CNC 4-axis sharpening of a wide range of twin flute drill point types – enabling it to quickly reproduce the complex, high quality profiles found on premium HSS, cobalt and carbide drills. Yet its easy-to-learn touchscreen interface allows inexperienced users to produce perfectly resharpened drills in seconds. To underline the system’s capabilities and ease of operation, 1^st MTA is also offering to arrange free demonstrations of the XPS-16 at customers’ premises on request.

Suitable for conical, four facet, split point and radius split point bits with angles from 118-150 degrees as standard, the XPS-16 will sharpen drills from 3-16 mm diameter and 50-220 mm long. It has been designed specifically for heavy-duty use within busy machine shop environments and is easily capable of sharpening more than 400 drills per day. 

A unique feature of this advanced drill sharpener is the automatic cycle to hone and deburr the cutting edge of carbide drills in less than 1 minute, extending tool life and maximising drill bit machining accuracy. 

In operation, the XPS-16 allows up to 25 user-specific drill point geometries to be easily programmed and stored for future use. It also incorporates Darex’s latest Grind Motion Control system, which monitors the load on the grinding wheel and automatically adjusts feed and speed, while keeping the drills cool. 

Electroplated super-abrasive wheels are included – CBN for sharpening HSS and Diamond for carbide drills – to ensure a smooth finish. Metal removal is set at a minimum to extend drill life; this can be overridden by up to 0.50 mm if necessary, to compensate for gouges or damaged edges.

Lifetime-lubricated seals ensure low maintenance and a long service life. The integral vacuum filtration system eliminates grit and airborne contaminants such as carbide dust – keeping the machine clean while acting as a coolant. In addition, advanced diagnostic software alerts operators to potential problems during the sharpening cycle.

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