JET MILL (USED FOR BULK DRUG MANUFACTURING)

A.  The Milling System consists of ONE Midas Mikronizer M-200 with a grinding chamber diameter of approximately 200mm”.  This unit has all contact parts in S.S.316 material of construction.  It includes a set of removable nonstick liners fabricated from PTFE to minimise product build up and caking.

Included also is a Venturi based powder injection system for delivering the powder to the milling chamber.  This injection system is completely removable and cleanable along with the Grinding Chamber.

 All seals and gaskets for the above are made from silicone rubber.

B.  ONE Reverse Pulse Jet Filtering Chamber fabricated from polished SS 316 parts.  Included are 10 SS 316 filter bag frames and 10 filter bags suitable for use with the powder.  These bags are continuously dusted by a pulse of air in the reverse direction.  The frequency and duration of the air Jet pulse is controlled by an electronic timer and two diaphragm valves.

The above assembly (A+B) is fitted on a movable SS Stand made out of polished SS 304.

C.  ONE Product Collector in SS 316 with its own spring loaded trolley in SS 304.  The Collector Vessel is securely fastened to the Pulse Jet Filter by Triclamps.

This vessel further breaks down into 3 sections for ease of cleaning.  The spring-loaded trolley is also completely washable.

All powder contact surfaces of the grinding chamber, pulse-jet filter and product collector are crevice-free, smooth and polished for ease of cleaning.

 D. A Powder feeding system for controlled dosing of the powder to the Jet Mill.  This comprises of :

•      ONE detachable screw spiral specially designed for conveying difficult-to-flow powders.  This screw is completely detachable and cleanable.

•      ONE 0.5hp geared Motor for driving the Agitator Assembly inside the Product Feed Hopper.  This assembly ensures the even flow of powder into the screw spiral.

•      ONE 1.0 hp geared Motor for driving the screw spiral in feeding the powder to the Mill.  Feed rate of the powder is controlled precisely by adjusting the rpm of the motor via a frequency controller. (The frequency controller is NOT INCLUDED in our scope of supply)

All components except the geared motors are removable for ease of cleaning.

• All Piping is in SS 316 material of construction, electropolished on the inside and fastened with Triclamps.
• A Vacuum Balancing System with a sight glass at both the product feeding end as well as the filtered air outlet end of the Reverse Pulse Jet outlet.  This system ensures virtual SILENT running of the complete system and also prevents personnel exposure to the powder in case of blowbacks caused by some powders.
• ONE set extra Product Collector in SS 316 with its own spring loaded trolley and Triclamp set.
• A COMPLETE set of spares for uninterrupted operation of the unit for a period of around 2 years. ( This includes one extra set of ALL sealing gaskets/o-rings, ONE extra set of PTFE liners for the grinding chamber, ONE extra Venturi tube, ONE extra Grinding jet ring and ONE extra electronic timer for the Pulse Jet  diaphragm valve.)

The complete system consumes approximately 100-110CFM (Free Air Delivery) of compressed air.  Optimum working pressure is 7.5 kg/cm2.

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