1. Sorting before processing

Processing quality starts before the mill. At the mine yard, workers pick through broken talc by hand. They remove foreign rock and separate lumps by colour, so the plant receives material that is already graded.

Workers sorting white talc lumps by hand in a walled yard.
Talc lumps are hand-sorted by colour and quality.

2. Crushing and screening

At the plant, crushers reduce the lumps and conveyor stackers build stockpiles of crushed talc at an even feed size. An even feed keeps the mills running steadily.

Conveyor stackers building a stockpile of crushed white talc, with jumbo bags and a worker nearby.
Crushed talc stockpiled at a screening yard.

3. Grinding

SKZ's two meshing plants in Hayatabad Industrial Zone, Peshawar, run hammer mill and Raymond mill lines. In a Raymond mill, rollers grind the talc against a ring. An air stream carries the fines up to a classifier, and the oversize falls back for regrinding.

Silver grinding mill with piping and filled bags beside a powder stockpile.
Grinding mill and product collection.

4. Classification and dust collection

Classifiers cut the powder to the order's fineness. For finer grades, a separate micronizing classifier is used. Cyclones and dust collectors recover the product from the air stream and limit airborne dust in the shed.

Grinding mill with cyclone and dust-collection hopper inside a processing shed, with two staff inspecting.
Grinding and dust-collection equipment in the processing shed.

5. Testing

Samples go to SKZ Laboratory Peshawar. There, particle size, whiteness, sieve residue, bulk density, loss on ignition, silica and magnesia are measured.

Technician using an analytical instrument and computer in the laboratory.

6. Packing and dispatch

Powder is filled into printed 25 kg bags or jumbo bags under dust collection, then stacked and stored. Export orders move to the Karachi warehouse for packing and container loading.

Workers in white uniforms and helmets filling and stacking SKZ talc powder bags in a large plant.
Talc powder bagging line.