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About Us

M/s. Involute Engineers & Industries (M/s. IEI) has been engaged in manufacture and indigenous development of Electro-mechanical & Electro-pneumatic equipment for Railway transportation, since its inception in 1984. Major thrust of its activity has been the import substitution in above mentioned field.

M/s. Involute has rendered a considerable and meaningful contribution by indigenously developing among others a variety of critical spares & sub-assemblies for N-32 Tap Changer. N-32 Tap Changer is a vital equipment in A/c Electric Locomotive. IEI has been a major supplier of railway componentsto M/s. Bombardier, Adtranz, Baroda (formerly M/s. Asea Brown Boveri Ltd.) and OEM for N-32 Tap Changer. Presently, M/s. IEI caters to the maintenance demand for Tap Changer & Circuit Breaker spares to all the Electric Loco Sheds in India under various Zonal Railways.

In 1995, M/s. BHEL had entrusted M/s. IEI to develop and supply complete SMSC i.e. an equipment also known as D.C. Controller for fitting in WCAM2, WCAM3 & WCAG1 Electric Locomotives (AC/DC) within a limited time frame. These equipments were earlier being imported from Switzerland. IEI met the challenge successfully. Presently, 170 pieces of such equipments are functioning satisfactorily in Mumbai area under Western & Central Railways. We Have also developed Eddy Current Clutches suitable for application in 3100/3300 HP Diesel Electric locomotives for DLW/Varanasi.

Our Promoter

Involute Engineers & Industries has been promoted by
 Sri Mrityunjoy Hazra, a Post Graduate Mechanical Engineer, with training abroad under Confederation of British Industries Overseas Scholership (UK).

Quality

IEI's quality assurance department is equipped with sophisticated and modern measuring instruments, including a standard Room. IEI maintains a well equipped precision workshop with imported Spur & Bevel Gear generating machines including Gear Testers.

IEI is an ISO-9001: 2008 certified concern. We have been approved by Research Designs & Standards Organization, Lucknow - Ministry of Railways as regular source for manufacture & supply of the above Locomotive items.

Our Customers

  • Eastern Railway, Fairlie Place, Kolkata - 700001
  • South Eastern Railway, Garden Reach, Kolkata - 700043
  • Central Railway, C.S.T. Mumbai - 400001
  • Western Railway, Church Gate, Mumbai - 400020
  • Southern Railway, Park Town, Chennai - 600003
  • South Central Railway, Rail Nilayam, Secunderabad-500071
  • Northern Railway, Baroda House, New Delhi - 110001
  • Metro Railway, Metro Rail Bhawan, 33/1 Chowringhee Road, Kolkata - 700071
  • Bharat Heavy Electricals Ltd., P.O.- BHEL, Jhansi - 284129
  • Bharat Heavy Electricals Ltd., Piplani, Bhopal- 462022
  • Bombardier Transportation India Ltd., Maneja, Vadodara - 390013
  • Disel Locomotive Works, Varanasi



GR Oil  Pump  Pneumatic
GR Oil Pump Pneumatic
Intermediate Gears
Intermediate Gears
Control Cylinder Assembly
Control Cylinder Assembly
Survo Motor Cum Survo Controller for A.C- D.C Loc
Survo Motor Cum Survo Controller for A.C- D.C Loc
Control Block Assembly
Control Block Assembly
Drive Wheel
Drive Wheel
3 Way Solinoid Air Valves
3 Way Solinoid Air Valves
Contact Pins
Contact Pins
Push Rods & Journal Pins
Push Rods & Journal Pins
Camshaft with Planetary Gearing
Camshaft with Planetary Gearing
Eddy Current Clutch
Eddy Current Clutch
Sector Lever Assembly
Sector Lever Assembly
Contact Lever Assembly
Contact Lever Assembly
Load Switch Shaft
Load Switch Shaft
Grating Plate Complete
Grating Plate Complete




Contact Details
INVOLUTE ENGINEERS AND INDUSTRIES
Sadananda Smriti Path, Baltikuri, Howrah - 711402, West Bengal, India
Phone:91-33-26530750/26531352/23340654/23373597(R)
Fax:91-33-26533150
Email Us : involute_eng@yahoo.co.in
  
Key Personnel
Mr. M. Hazra (Proprietor)
Mobile:+919830265393


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