Headquartered at Kolkata, West Bengal, India, EMC Limited, was established in the year 1953 and today it is listed amidst the renowned producers and suppliers of Industrial Aluminum Alloy & Forged Products, Defense Components and Con Rods Spare. apart from this, our company blessed with certification is also involved in offering Substation Work and Turnkey Projects for Transmission Line Construction. We are an eminent firm and one of the pioneers of this domain that involves fabrication of products like Aluminum Alloy Extruded Rods, Aluminum Alloy Extruded Flats, Automotive Parts Forging, Kick Starters Forgings, Con Rods, etc.

1. EMC LIMITED
FORGING AHEAD WITH EXPERIENCE
FORGING AHEAD WITH EXPERIENCE
FORGING AHEAD WITH EXPERIENCE

2. EMC LIMITED is a leading power system company in India offering a
total turnkey solution in the field of Transmission line projects upto 800KV,
EHV Substation and power distribution projects. The Company also offers
complete turnkey solutions for setting up Tele-communication systems.
Apart from Tower manufacturing and Transmission line construction and
erection, EMC has two factories in Kolkata producing high quality
conductors, non-ferrous extrusions and forgings for sophisticated
applications.
In the field of Aluminium alloy forgings, EMC has developed and supplied
several critical products for Defence, Electrical, Engineering, Locomotive
and Automobile industries. The company specializes in high strength
Aluminium alloy forging. EMC produces aluminium alloy extruded rod, bar
and flat in heat treatable alloys.
EMC is forged and extruded products come with a complete assurance of
quality. From the selection of raw material the process parameters are kept
under close control. The company’s R&D wing is continuously working on
product innovation and design optimization. Product quality is ensured
through stage inspection and testing by the dedicated Quality Control
Department supported by a well equipped chemical laboratory in pursuance
with the company’s quality policy and customer’s specific requirement.
EMC has its own alloy making and billet casting units. Post extrusion
operations such as heat treatment is done in-house. Press and hammer
forging are done for Aluminium alloys. The manufacturing facilities include
pneumatic hammers, friction screw press, drop hammers, electrically
operated furnaces for production and heat treatment, homogenizing
furnace, extrusion press, rotary melting furnace and DC Caster.

4. ALUMINIUM ALLOY EXTRUSION
EMC LTD. is among pioneers in India producing heat treatable hard alloys in solid
form like rods, bars and flat for over 3 decades. Typical alloys are in BS-6000,
2000 & 7000 series. Alloy billets for extrusion are cast in-house through Direct
Chill Casting method under strict quality control norms. Composition of each cast
lot is checked in a state of the art Spectrometer.

5. FORGINGS
Aluminium extruded rods/bars cut to length form the forging stock. Forging is
done in Drop Hammers & Mechanical Presses. Best forging practice is followed to
obtain quality components.
1.5 T Drop Hammer
Steel forging is done in Drop Hammers. Steel rounds/bars sourced from reputed
Steel Mills are cut to length and used as forging stock.

6. HEAT TREATMENT
To achieve desired mechanical properties and grain structures Aluminium
extrusions/forgings are subjected to heat treatment (Solution & Ageing) in electric
furnaces under precise control.
Solution Heat Treatment
Normalizing treatment of Steel Forging is done in electric furnace with chart recorder.
INSPECTION & QUALITY ASSURANCE
Aluminium forgings/extrusions are subjected to 100% ultrasonic testing to detect
internal cracks. Visual inspection of each component is carried out. Hardness
check and Mechanical test is done for each production batch.
Crack detection test of every steel forging is done in MPI along with visual
inspection. Micro structure is checked in Optical Microscope and digitally recorded
to generate test reports.

7. For Automobile Industry
Connecting rods, kick paddle, tank piston,
V Belt pulley, cam gear, fork, crown
bottom, GP bush some of the major
components manufactured by the
company
For Switchgear Industry
Ansculus, outer and inner galenk, cam,
contact drive case, pilot support to
mention a few.

8. Product parts for Defense Sector
Body cover, spider, adopter nut, base
adopter, trigger brackets, trigger guard,
cartridge case, kousing, tail unit and
bridge valve housing, lower body with
fin

9. EMC extrusion and casting products come with a complete assurance of quality.
This is achieved as a result of untiring attention and meticulous process control at
every stage of manufacturing.
EMC has its own alloy making and billet casting units. Aluminium extrusions in a
variety of shapes are produced in high duty and special grade alloys. Post
extrusion operation such as stretching and heat treatment in it’s own integrated
plant. Press and hammer forging are made in aluminium and copper based alloys.
The manufacturing facilities include pneumatic hammers, friction screw presses,
drop hammers, electrically operated furnaces for production and heat treatment.
EMC specializes in high strength aluminium and high conductivity alloy forging.

10. EXTRUSION
MELTING CASTING CUTTING HOMOGENISING EXTRUSION
DESPATCH PACKING HEAT TREATMENT CUTTING STRETCHING
FORGING
MATERIAL CUTTING SOAKING LUBRICATION FORGING
PACKING HEAT TREATMENT TRIMMING
MACHINING DEBURRING
DESPATCH

11. SPECS OF MAJOR ALLOYS (FORGED)
Alloy Condition Uts Yield Elongation Typical applications
Kg/mm2 Kg/mm2 (%) Min.
2014 WP 45 39 6 Components like
HE - 15 W 38 23 10 Connecting Rods, Pedal
Levers, Kick Starters,
Handle Holders, Cap
Forging etc.
63400 WP 19 16 7 Windows frame and
architectural use
65032 WP 29 24 7 Structural applications
and Electrical Switch
Gear and Extrusions
HE 12 (RR WP 40 30 6 Automotive applications,
56) Extrusions etc.
24534 WP 38 23 8 Aircraft Parts and
Structurals
6351 WP 30 26 7 Projectile Body
HE-30 W 19 12 14
GOST B-95 WP 56 44 4 Defence Applications
DTD 5124 WP 56 50 4 Frame for Revolvers,
(AW-7075) AFT Closure, Plunger,
Minnacle Ring,
Connecting Lever
Forgings
2258 WP 38 27 - Automobile Piston,
Cylinder Heads, Aircraft
Forgings, etc.
DTD 5024 WP 51 44 6 Fin Body

12. Aluminium Alloy Compositions
Sl IS:733 EN:255 % Cu % Mn % Mg % Si % Zn % Cr % Ni % Fe
1 24345 2014 3.8-1.2 0.2-0.8 0.5-1.2
(HE15)
2 63400 0.4-0.9 0.3-0.7
3 65032 0.15-0.4 0.2-0.8 0.7-1.2 0.2-0.8 0.15-0.35
4 64430 6082 0.4-1.0 0.4-1.2 0.6-1.3
(HE30)
5 HE12 1.8-2.8 0.6-1.2 0.5-1.3 0.6-1.4 0.6-1.2
6 24534 3.5-4.7 0.4-1.2 0.4-1.2 0.2-0.7
7 GOST 1.4-2.0 0.2-0.5 1.8-2.8 <0.5 5.0-7.0 0.1-0.25 <0.5
B95
8 22588 1.8-2.7 1.2-1.6 <1.3 0.6-1.2
9 DTD 7075 1.2-2.0 2.1-2.9 <0.4 5.1-6.4 0.1-0.25
5124
10 DTD 0.3-0.7 0.3-0.7 2.2-3.2 <0.5 5.2-6.2
5094

13. Non Ferrous extrusion
and forgings for
sophisticated
applications

14. SOME OF OUR VALUED CUSTOMERS
ORDNANCE FACTOY, AMBAJHARI
ORDNANCE FACTORY, DUMDUM
ORDNANCE FACTORY, KHAMARIA
GUN & SHELL FACTORY, COSSIPORE
RIFLE FACTORY, ICHAPORE
SMALL ARMS FACTORY, KANPUR
VEHICLE FACTORY , JABALPUR
ENFIELD INDIA/MACO PVT. LTD..
LML LIMITED , KANPUR
BAJAJ AUTO LTD., AURANGABAD
ASHOKA INDUSTRIES
USHA MARTIN INDUSTRIES
ABB
KISRLOSKAR PNEUMATIC CO. LTD.
VOLTAS LTD.
USHA TELEHOIST LTD.
STONE INDIA LTD.
STESALIT
ESCORTS
SANDEEP METALCRAFT PVT. LTD.
KOLBEN INTERNATIONAL
CHITTARANJAN LOCOMOTIVE WORKS
RPG RAYCHEM
SIEMENS
HINDUSTAN AERONAUTICS LIMITED