Designed in Reutlingen, Germany, and drawing on expertise cultivated by WAFIOS there over the decades, a new generation of machines is being produced at WAFIOS'' production company in Zhangjiagang, China, for the first time. The G 450 features the latest version of WAFIOS'' WPS 3.2 EasyWay high-end control system, which has already proven its worth as one of the company''s highly successful products. The new generation of machines has been developed with two key aims in mind: to provide a solution that addresses the needs of as many customers as possible, even if they opt for simply the basic version, and to deliver outstanding value for money.

In April of this year, the spring end grinding machine made its live debut in front of an audience made up of Germany''s experts in the field at the WAFIOS In-House Exhibition in Wuppertal. The G 450 is a single-plate spring end grinding machine for grinding both compression spring ends simultaneously using the crush-grinding or down-feed grinding technique (see Fig. 1).

The machine''s design combines proven technology with innovation: While the team of developers at WAFIOS was able to draw inspiration from successful solutions from WAFIOS'' G6 range, already on the market, it also pursued entirely new directions during the development process.

Designed for common applications and optimized production output while maintaining outstanding quality

The basic version of the G 450 comes with 8 axes (6 servoaxes and two frequency-controlled drives) that are used for driving and down-feeding the upper and lower grinding wheel, driving the loading plate, the horizontal and vertical axes of the dressing unit, and driving the protective shield. It also features a high-performance cooling and dust extraction concept as well as a rigid dressing unit with 2 axes. Thanks to its protective devices, the G 450 meets the requirements for CE conformity, particularly when it comes to the harsher conditions associated with the type-C standard for grinding machines.

The infinitely adjustable rotating speed of the grinding wheels, which ranges between 35 and 50 m/s, and the powerful, frequency-controlled three-phase motors (7.5 kW) for driving the two grinding spindles, enable the G 450 to achieve the very best levels of production output.

The new and highly robust machine design for grinding springs and for dressing grinding wheels ensures that quality remains consistently good. The extraction channel has been positioned tangentially to the grinding wheel and thus improves the extraction of grinding wheel dust.

Other features of the basic version are laser sensors for automatic grinding wheel positioning, ensuring wear compensation, plus a spring length measuring device for in-process monitoring.

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