Tumbler GR-I and GR-II is a new generation developed on the basis of our traditional vacuum tumbler, Type I is electric-mechanical control and Type II is PLC&HMI control. The tumbler is made of quality stainless steel; reasonable structure, durable construction, stable operating, failure-free vacuum and filter, energy saving, high efficiency and simple to use.

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• 8 frequency converted tumbling speeds, from 4rpm to 11rpm. 10 different tumbling modes. 100 tumbling recipes can be created and stored.

• Total time, forward tumbling time, reverse tumbling time, interval time and circulation types can be set up.

• The central opening tumbler adopts triangular-vane in the drum; the eccentric opening tumbler and GR-4600 adopt single-vane.

• Eccentric opening tumbler can increase capacity by approximately 20%.

• The application of frequency conversion can save energy by approximately 30%.

• Automatic loading port and reverse rolling discharging.