With the increasing requirements of refractory castables and precasts, the need for quick and small batch mixing was strongly felt. To meet the growing requirement, Hari Machines Ltd. developed a portable design Planetary Mixer suitable for various castable applications (Dry as well as wet).

Mixing Principle - The mixer works on planetary principle wherein the mixing tools along with the agitator rotate inside the fixed pan at slow speed and simultaneously the agitator tools rotate in its own axis at a higher speed. The Planetary movement ensures a very homogenous mix.

Construction - The mixer is of fixed pan design mounted on a pedestal. The mixing tools are mounted on the rotating Planetary gear box which is driven by a geared motor. The mixing tools comprise of 2 Nos. wall scrapers & 3 nos. mixing plough, made out of special quality hardened material for better life. Heavy duty roller & ball bearings are used which can take continuous load under different circumstances.

Portable Design - With the fixed pan mounted on a pedestal, complete machine can be transferred even to the application site by truck/overhead crane. Rigid structure ensures vibration free operation without foundation.

Discharge System - Hydraulic actuated side discharge arrangement is there for smooth and quick operation. Also motorised side discharge system can be incorporated optionally.

Adjustment - The great advantage of the Ring and Roller Mill is that the fineness of the product can be adjusted to any desired size by simply adjusting the pressure spring. As wearing takes place in the Mill the springs are adjusted to maintain the desired fineness. The adjustment of the spring is very simple and can be done while Mill is running.

Safety - As the rollers are spring supported occasional tramp iron or big hardlump of material in the circuit will not damage the mill.

Environment - Due to minimum number of moving parts, the noise level of the Ring and Roller Mill is minimum. Extra care has been taken to ensure that it gives dust free operation.