BIG-PLUS®: The Original
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DUAL CONTACT SPINDLE SYSTEM BIG-PLUS®: THE ORIGINAL Not all dual contact tooling is the same Important information inside about BIG-PLUS and manufacturers who claim to offer dual contact tooling systems.

Adopted by more than 100 machine tool builders over the past 20 years, thousands of machines and tens of thousands of BIG-PLUS® tool holders are in operation today. Due to the popularity of BIG-PLUS®, many tooling companies, without a proper license agreement, gauges, or manufacturing specifications & tolerances are offering dual contact tooling. The achievement of dual contact is only possible by strict control of flange face location to taper gauge line. Conventional FIT SPACE BIG DAISHOWA SPINDLE SYSTEM DUAL CONTACT BIG-PLUS® surpasses all other spindle concepts while offering...

The Analysis There are many manufacturers who claim to have dual contact tooling system: But only a few have an official license of BIG-PLUS®. Without a license, these manufacturers whether have the master gauges nor the measuring devices or the tolerances for defining the critical dimension of the distance between the taper gauge line and the tool flange. We have bought many of these copies and checked them with our gauges. The result: 84% of the tested tool holders are out of the official BIG-PLUS® tolerance. Only original BIG-PLUS® tool holders enable the benefits and strengths of a...

BIG DAISHOWA PRODUCES AND MAINTAINS ALL SPINDLE AND TOOL HOLDER BIG-PLUS® GAUGES WORLD-WIDE FOR LICENSED COMPANIES ONLY Strict gauge control BIG-PLUS® spindles produced by licensed machine tool or spindle builders are trictly controlled in dimensions by the BIG original Master s Gauge. Only BIG-PLUS® trademarked tool holders can achieve the optimal performance fully and safely. Master Gauge Measuring Device Master Arbor BIG-PLUS® spindle system machine tool builders The BIG-PLUS® Spindle System is offered by many of the world’s leading manufacturers of machining centers. Some of the machine...