Manufacturing Process

Fiber BOD Device

The Chrysotile Asbestos fiber bags are slit open in a closed automatic bag opening device under negative pressure. Fiber is first milled and blended in a Kollargang. Intimately mixed fine aqueous slurry of cement and asbestos fibers is then prepared.

At Hamirgarh, District Bhilwara, Rajasthan, our pipes are manufactured in fully automatic plants imported from M/s Farben Industrial Development Corporation, Italy.

Our plants employ state-of-the-art Mazza process, the latest technology available in the world for manufacturing Asbestos Cement Pressure Pipes. Mazza process is far superior to the still prevalent but almost obsolete process called the Magnani process.

Silos

A machine having a rotary sieve cylinder with hog beaters the slurry and distributes the fiber appropriately. The Mazza process incorporates an endless felt under uniform vacuum to produce a continuous uniform thin lamina of approximately 0.25 mm thickness with fiber orientation that is horizontal to lamina and criss-cross.

Autoclave unit

The pipe is then kept in a heated tunnel for 4 to 6 hours for drying. Eventually, a homogeneous pipe is formed under uniform pressure. It has essentially a laminar construction of great strength and durability.

The pipes are subsequently cured under autoclave. After autoclaved, the pipes are accurately machined at the ends.