Sepro Tire Drive Grinding Mills

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Sepro Tire Drive Grinding Mills are a reliable solution for small and medium capacity grinding applications and are suitable for ball, rod and pebble charges.

Sepro Grinding Mills come complete with a Variable Frequency Drive (VFD) package which allows you to fine tune the operation of the grinding mill based on the charge and mining application. No auxiliary drive is required to perform maintenance, which is done quickly with minimal heavy lifting due to the simple removal of the grate or discharge head to access the mill internals. Sepro Mill shells are manufactured in one piece to high quality standards and are thermally stress relieved to eliminate localized high stress areas. Sepro Grinding Mills utilize the Sepro Pneumatic Tire Drive System (SPTD) which provides an alternative to standard trunnion supported grinding mills. This system of rubber tires mounted on independent gear boxes provides excellent serviceability and reliability, having been well proven in numerous difficult mineral processing applications.

The Finer Details

Sepro Tire Drive Grinding Mills are used in a variety of applications, including:

  • Small tonnage plants – primary grinding
  • Regrinding mills
  • Reagent prep
  • Lime slaking

  • Ball, rod or pebble changes
  • Overflow or grate discharge
  • Low maintenance tire drive system
  • Extremely fast delivery
  • Units are all pre-assembled and shop tested
  • Inexpensive foundation requirements
  • No critical components such as ring gears, chain drive, steel wheels or trunnion bearings
  • Standard, off-the-shelf major components to minimize any downtime
  • Commercial heavy truck tyres that can easily be sourced locally
  • Up to 2.1×6.0m and 330kW

Sepro’s line of heavy duty Grinding Mills utilizes a powerful and rugged Variable Frequency Drive (VFD) package, allowing operation to be fine-tuned based on application. The Rotary Control Console (RCC) component features a touch-screen HMI (Human Machine Interface), which is used to control and monitor the operating parameters. Every Sepro Grinding Mill AutoPAC comes complete with a jacking cradle, tire pressure sensors, and hardwired safety limit switches.

The tire drive system is a stand-out feature included in Sepro Grinding Mills. The drive is built to be simple, effective and low maintenance. Tires are designed for individual removal without complicated shaft, bearing and coupling arrangements. Tires are carried on purpose built wheel assemblies, which are driven by a bevel/helical gearbox direct connected to the electric motor. Starting and speed control is done via an AC VFD.

Every Grinding Mill manufactured by Sepro comes complete with a Tire Pressure Monitoring System (TPMS). Located within the RCC, the TPMS feature protects the operation from costly downtime due to under-inflated tires. The system works as a closed loop control, allowing the HMI to disable the VFD should the operating conditions of the equipment stray outside of its defined parameters. Monitoring the equipment’s tire pressure greatly improves machine performance over time.

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