HMT Ltd. was established in 1953 in India to manufacture various products through technical collaborations. The Pinjore unit was established in 1963 as HMT's third machine tool factory and began tractor production in 1971. The factory has five main shops: foundry, heavy machine, engine, light machine, and tractor assembly. The foundry produces castings for tractor and machine tool parts. The heavy machine shop machines heavy tractor components like housing and covers. The engine shop produces engine parts like cam shafts and connecting rods. The light machine shop machines smaller parts. Finally, the different engine models are assembled in the engine assembly shop.

1. Training Report On
HMT Ltd. Tractor Division

2. HMT Introduction
• HMT Limited was established in 1953 in
technical collaboration with M/s. Oerlikon of
Switzerland. It had technical collaboration
with over 30 leading International Engineering
Companies for manufacture of various
products

3. HMT Products

4. HMT Pinjore unit
• After establishing two machine tools factories and a
watch factory in Bangalore, the Pinjore unit was
established as the third machine tool factory. It went to
production on 1st October 1963. The factory has been
designed, built and commissioned in a record period of
17 months of breaking the ground on May 2, 1962.
Pundit Jawaharlal Nehru the first prime minister of
India inaugurated it on October 23, 1963. Later in June
1971 HMT tractor project commenced its operation
here. This unit is located about twenty kilometers from
Chandigarh, near the town of Pinjore in Haryana.

5. Shops In HMT
• Foundry
• Heavy Machine Shop
• Engine Shop
• Light Machine Shop
• Tractor Assembly Shop

6. Foundry Shop
There is well-equipped and modernized foundry
running in HMT. There are 3 electric furnaces
working in the foundry. All the requirements of
tractor division and machine tool division are
fulfilled by this foundry. Casting is the final
product of the foundry. Liquid metal is poured
into mould and the molten metal takes the
shape of the cavity.

7. Green Sand
• Return Sand 93%
• Silica Sand 7%
• Bentonite 1%
• Bentacore .2%
• Water 4%
• Bentonite Used For Strength & Bentacore For
Removing Gas From Sand

8. Heavy Machine Shop
• In heavy machine shop all the heavy parts of
tractor are machined like Gear box housing,
Main transmission housing, front cover etc. All
the parts undergo different types of
operations like milling, drilling, boring,
tapping, slotting etc, in HMS section

9. PARTS MACHINED IN HMS
• Main transmission housing
• Gear box housing

10. Process In HMS
• Marking
• Drilling
• Milling
• Boring
• Tapping

11. Engine Shop
• In engine shop, manufacturing of the engine
parts is done. There are two manufacturing
lines, one is each for manufacturing of
connecting rod and cam shaft. Various engine
parts are also machined.

12. Parts Machined In Shop
• Cam shaft
• Connecting Rod

13. Processes In Engine Shop
• Material is cut according to the desired length.
• Facing and centering of the shaft on the lathe
machine.
• Turning of shaft on the copy turning machine.
• Straightening of shaft on pressing machine.
• Drilling of the shaft for Lubrication.
• Inspection of the cam shaft.
• After the Engine Shop, Cam Shaft and Connecting
Rod is sent to the Heat treatment shop for
hardening.

14. LIGHT MACHINE SHOP
• As the name suggests that in this section light
parts or small parts of tractors are machined
such as speed gears of tractor, sun and planet
gears, crown wheel, PTO shaft, Clutch shaft,
Spline shaft, Front and rear axle.

15. Parts Machined In Shop
• SPLINE SHAFT
• BEVEL PINION SHAFT
• WHEEL SHAFT

16. Engine AssemblyShop
• After all the processes the different parts of
engine is assembled in the engine assembly
shop. In engine assembly different engine of
different models are assembled like 2522,
3522, 4022, 5022, 6522 and 7522.