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29/07/2010
It's an encouraging recovery for Manufacturing during quarter two
According to the Confederation of British Industry, Manufacturing has experienced an encouraging
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27/07/2010
High Tech Haas CNC Machines available to Colleges, Schools and Businesses
Small manufacturers across the East Anglian region are being offered access to high-tech Haas CNC
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26/07/2010
Cutting Tool Insert Life Extened Thanks to Nanolock
Developed to maximise performance and tool life when milling without coolant, LMT’s Boehlerit
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23/07/2010
Haas announce new Sponsorship Deal with Superbike Racer
The world’s largest CNC machine tool supplier, Haas Automation, is pleased to announce a new sponsor
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Star sliding headstock cnc lathes - editorial
Story added 25 August 2008.
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For the manufacture of turned parts up to 20 mm diameter ranging from relatively simple to medium-complex, Star Micronics has introduced two new sliding-headstock cnc lathes, 7-axis CNC mill-turn centres.
The traditional version with guide bush, SR-20J, is suitable for high precision machining of long, slender components, but is equally capable of producing short, complex parts. Almost as capable as the high-end SR-20RIII, the new lathe can be purchased for 15 per cent less. It is therefore ideal for early entry users that expect to progress quickly in their use of the technology.
The absence of a guide bush in the second machine, SR-20JN, results in drastic reductions in material costs, especially when machining short parts approaching the lathe’s maximum bar capacity. The headstock is able to grip the material very close to the point of machining, so the remnant is only around a quarter of the bar length that is normally involved when using conventional sliders.
With increasing material costs, the competitively priced Star SR-32JN is the answer to complex machining of larger diameter components and is even more cost effective if expensive material is being processed.
High productivity is delivered by an industry-leading specification that includes a 3.7 kW / 10,000 rpm main spindle, 35 m/min rapids in all linear axes, and C-axis positioning of the main and counter spindles. Both models have an installed weight of 2.2 tonnes, imparting a robustness that allows very high accuracy and surface finish to be achieved. Spindle cooling ensures thermal stability and also contributes to high precision machining.
The working area can accommodate a large number of cutters and the usual six ganged turning tools above the guide bush. They include four front-facing and four rear-facing endworking tools in the main sleeve holder up to 10 live cross-working stations, some of which may be swapped for more end-working tools or other attachments such as for angle drilling, hobbing or roller burnishing and an independent, four-spindle back-working unit with live and stationary positions.
Both lathes can be fitted with the latest Minimag 20 bar magazine, which is equipped with a 22 mm pusher for feeding bar of 20 mm diameter without bar end preparation.
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