kamla castings

Punjabi Bagh, Delhi

Hyper steel Grinding Media Balls and Cylpebs as per IS 6079-1980 (a) CHEMICAL COMPOSITION: The chemical composition of the grinding media will be as per IS 6079-1980: as follows: GRADE-1 (For size 60 mm & above) GRADE-2 (For size below 60 mm) Carbon 1.10-1.60 1.50-2.00 Silicon 1.00 Max. 1.00 Max. Manganese 0.90-1.60 0.90-1.60 Chromium 1.20-2.40 1.20-2.40 Sulphur 0.06 Max. 0.06 Max. Phosphorous 0.06 Max. 0.06 Max. (b) HARDNESS: When tested in accordance with IS 15001983 the hardness at any point across the section of the ball is more than 375 BHN. (c) MICROSTRUCTURE: Microstructure shall be free from continuous carbide network. (d) HEAT TREATMENT: The grinding media is suitably heat treated to obtain the required hardness and Microstructure.

These casting mainly vary from medium to high carbon with verifying alloying elements. Austenitic steel casting contain 11% to 14% manganese. These are work hardening type of steels. In operation, the surface hardens up to and above 450 BHN, While retaining high level of impact and toughness. Ni- Hard range is alloy irons with NI ranging from 3 to 5% and Cr from 2 to 9%.

Shell liners impart adequate energy to the balls as to ensure efficient crushing and pulverizing of feed. Liners are designed to protect the mill from direct impact of balls. Each linesrs is designed according to the application.

Usually used in automobile, railways, power generation industries and electricity board to replace malleable cast iron casting, with high tensile values and stretching limits to avoid breakage failure.

(Mn. Steel) Crusher hammers are used in hammer mills used for crushing clinker, coal and mineral ores . They are manufactured depending on size and type of mills and material to be crushed in Mn steel of various grades

The basic principle of a diaphragm is to allow only specific size of grounded material to pass on to next chamber and keep the material level in the chamber at optimum level. Material entering next chamber through slotted gates, can exit only through lifters. We also manufacture specially designed diaphragm which control level of material in individual chamber of the mill.