Ginning System

Ginning System

A cotton gin is a machine that quickly and easily separates cotton fibers from their seeds, enabling much greater productivity than manual cotton separation. There are four type of ginning machine available in market 1. Single Roller gin 2. Double Roller Gin 3. Rotobar Roller Gin 4. Saw Gin. PRAMUKH provides all this machinery installation & maintenance service with replacing old part to new parts.

Single Roller Gin

PRAMUKH provide installation service of single roller gins manufactured by Turkey. We also provide maintenance service for all types of single roller gin machine. PRAMUKH provides high quality spare parts for any type of single roller ginning machine with quality, guarantee & test certificate.

Single Roller Gin is a machine which separates the seeds from the cotton-seed collected from cotton fields with a capacity of 30 to 40 Kg/h. The McCarthy roller gin utilizes a leather or composite roller to draw the fibers between a fixed knife and the roller. The roller rotates counter-clockwise (below) while touching the Stationary / fixed knife and the cotton is coming out from the top. The stationary knife is fixed with the sharp edge down while reciprocating knife is moving from below the seed fingers up toward the stationary knife. The pulling action of the roller on the fibers combined with the pushing action of moving knife are required to remove the fibres from each seed. The seed then falls through a seed grid and the fibres are carried over the top of the roller and removed from the roller by a rotating doffer. Lint/Fiber come out from front side of the machine, means only one leather roller working in the machine. this single roller gins are used in turkey, Nearest countries of turkey and some African continents. The seeds are separated from the cotton by the gins mounted in two opposite lines to the seed hall through the lower helical tubes. The separated cotton falls down on the conveyor bands in front of the gin and transferred to the cleaner for the last cleaning.

Double Roller Gin

PRAMUKH provide installation service of double roller gins manufactured by Pramukh, Bajaj or Jadho. We also provide maintenance service for all types of double roller gin machine. PRAMUKH provides high quality spare parts for any type of double roller ginning machine with quality, guarantee & test certificate. To ensure these parts, we test each of these parts in a laboratory, and submit our report in inspection company or our customer, so that our customers know in which raw material we are making these parts.

The Double Roller Gins currently available are either an improved version of the Volcart design (manufactured by Montfort in Germany) or the Platt Brothers UK design gins. They are now manufactured in large quantities only in India. In a double roller (DR) gin, two spirally grooved leather rollers, pressed against two stationary knives with the help of adjustable dead loads, are made to rotate in opposite directions at a definite speed. The three beater arms (two at end and one at the centre of beater shaft) are inserted in the beater shaft and two moving knives are then fixed to the beater arms. This assembly is known as beater assembly, which oscillates by means of a crank or eccentric shaft, close to the leather roller. When the seed cotton is fed to the machine in motion, fibres adhere to the rough surface of the roller and are carried between the fixed knife and the roller and the fibres are partially gripped between them. The oscillating knives (moving knives) beat / drag the seeds from top in the opposite direction causing separation of fibres from the seed end by pull-push process. This process is repeated a number of times until all spinnable fibres are separated from the seeds. The fibres, so detached from the seeds, are carried forward on the roller, under the fixed knife, and doffed out of the machine. The ginned seeds drop down through the slots provided on the seed grid and the gap between the end of seed grid and the rail. The grid is part of beater assembly and oscillates along with the moving knives helping quick removal of the seeds.

Rotobar Roller Gin

PRAMUKH provide installation service of Rotobar gins manufactured by Pramukh, Lummus, Balkan & Bajaj. We also provide maintenance service for all types of Rotobar gin machine. We have already started production of Rotobar Roller Gin Spare. According to client's samples or drawings. To ensure these parts, we test each of these parts in a laboratory, and submit our report in inspection company or our customer, so that our customers know in which raw material we are making these parts.

In the Rotobar Rotary Knife Roller Gin the roller rotates in clockwise direction similar to Double Roller Gin while touching to the Stationary (fixed knife). The fibre is pulled under the stationary knife and dropped from the lower portion of the roller. This gin has a rotating knife rather than an oscillating beater bar. The rotary knife vibrates less due to rotary motion and is more efficient than the reciprocating knife, which loses effective time during its backstroke. The ginning rate and carryover (un-ginned seed cotton that accompanies the seed) increase with feed rate. A re-claiming machine is required to remove the excess seed cotton from the seed flow and return it to the gin.

Saw Gin

PRAMUKH provide maintenance service of saw gins manufactured by Lummus, BC Supply, Cherokee, Bajaj & other manufacturer in china. We manufacture & export our saw gin parts to 15 different countries. Many of the clients buy many spares from PRAMUKH, we also manufacture old model saw gin parts according to client's samples or drawings. To ensure these parts, we test each of these parts in a laboratory, and submit our report in inspection company or our customer, so that our customers know in which raw material we are making these parts