GMT operates from its headquarters in Pallikaranai, Chennai. It has 2 other plants located in Chromepet, Chennai and Hosur near Bangalore.

Plant I in Pallikaranai, Chennai is spread over an area of 60,000 sq.ft with well equipped manufacturing facility including a heat treatment shop, testing laboratory which is equipped with a spectrometer and Auto Collimator. This plant primarily manufactures workholding devices like chucks & cylinders and Coordinate Measuring Machines. Fully equipped with precision calibration equipment like Koba Step Gauges and Renishaw Laser Interferometer.

Plant II in Chromepet, Chennai manufactures work positioning devices, lapping machines and other machine tools and handles re-conditioning of all GMT make chucks.

Plant III (Metrology Division) - This division manufactures the complete range of granite and cast iron metrology products such as surface plates, angle plates etc.. This plant is located in Hosur, TamilNadu. This region is home to large deposits of world famous Indian black granite. The Cast Iron products are made of close grain Cast Iron with hardness from 190 to 210 BHN. Two grades available: Grade I - Hand Scraped; and Grade II - Machined. Auxiliary facilities include .

Plant III (Foundry Division) - GMT established a foundry in 1979 to meet their in-house casting requirements. We have acquired expertise over 25 years, in the manufacture of Grey Iron Castings conforming to IS210-1978. Grades normally poured are FG - 150, FG - 200, FG - 220, FG - 260, FG - 300, FG - 350 as required for various applications. To meet the growing requirement of quality CI Castings, GMT has established a foundry facility in SIPCOT complex - Hosur, Tamil Nadu. Spread over 30,000 sq.ft., the outstanding facilities at the foundry consists of new furnaces with auxiliary facilities such as Chemical Lab, Sand Testing Lab. Instant Carbon Silicon Analyzer with Thermal Analysis. Poldi Hardness Testing. Universal Testing Machine to check Tensile and Compression Strength. Dip type Temperature Measuring equipment. Inverted Stage Metallurgical Microscope with Image Analyser Software. Brinel Hardness Testing Machine and Spectrometer. The machine shop is located in a 10,000 sq.ft. facility.

GMT has commenced production of S.G.Iron Castings ranging from 3 kgs to 750 kgs conforming to IS 1865-1974. Grades normally poured are SG - 400/12, SG - 450/10, SG - 500/7, SG - 600/3.

MACHINING FACILITIES