Language Translation :
Home About Us Products Export Market & Clientele Downloads Career with Us Testimonial Contacts
Connecting Rods

To catalog

Connecting Rods


Neptune offers connecting rods in I beam section in normal or fractured split according to engineering specification used by European and US engine makers.

The connecting rods are mostly made from virgin crack free fully tested steel grades EN8D, SAE8620, EN15, 42CrMo4, C70, 40Cr1, 20MnCr5, EN19 and Aluminum alloys.

Our partner factory has in house Forge shop, die and tools design and development facilities and own finishing machines to offer a complete package of total quality control, cost effective parts quick deliveries and aggressive new product development.

Neptune are a world class accredited tier2 OE supplier of finished connecting rods to the automotive vehicle and power train manufacturers.

Range: Readily available range of over 300 types of connecting rods
            Weight 0.500 Kg to 10 Kgs
            We always have stock of most of connecting rods in our range
“Neptune” produces Connecting Rods compatible to Vapormatic reference number.
“Neptune” produces Connecting Rods compatible to KolbenSchmidt & BF reference number.
“Neptune” produces Connecting Rods compatible to Original equipment manufacturer (OEM) reference number.
“Neptune” produces Connecting Rods as per customers specification & design. (Custom products)

 Quality of connecting rods are checked at

♦Incoming raw material for chemical testing
♦Crack detection of forged connecting rods
♦Hardness, Weight, Micro structure and size checking of forged connecting rods
♦In process size checking at end of each machining operation
♦Final size checking before packing
♦100% checking for visual defects, weight, small end/big end and CTC dimensions.

Raw Material Sources

Resultant quality of connecting rods is greatly determined by the quality of inputs. The raw material is sourced from best available vendors in India. The current raw material suppliers are:

  • Bhushan Power & Steel Limited
  • Kalyani Steels
  • Rashtriya Ispat Nigam Limited
  • Remi Metals
  • Steel Authority of India Limited (SAIL)
  • Vardhman Steels


Connecting rods are forged in our partner factory's own forge shop by closed die method having following facilities:

                Forge Shop

  • 4-Belt Drop Hammers of 0.75 Ton, 1.0 Ton, 1.5 Ton and 2.5 Ton of capacity
  • Shearing Machines
  • Power Press
  • Shot Blasting Machine (250 Kg Capacity

Die/Tool Room Facilities


  • In-house Die-Designing
  • In-house Die Developing on VMC
  • EDM
  • Pantograph Machine
  • Shaping Machines
  • Milling Machines
  • Lathe Machines
  • Radial Drill

Heat Treatment - Normalizing, Quenching and Tempering - these are currently done outside from quality vendors.

Machine Shop

Our partner factory has amalgamation of High Tech, special purpose and conventional machines that are able to machine and finish raw steel forged connecting rods with a capacity of half million connecting rods per annum.

Neptune connecting rods are manufactured using

  • CNC/VMC (for Drilling, Tapping, Boring, Milling operations)
  • SPM (Boring, Deep oil hole/Gun drilling, 2 Spindle Automatic Nut Runner Bolt tightening)
  • Other conventional machine line (Lathes, Drilling operations)
  • Surface Grinders, Internal Grinders, Honing and Lapping machines

Inspection and Other utilities

  • 3D CMM
  • Pneumatic air gauges (for checking sizes, Taper, Ovality), other conventional measuring equipments
  • Microscope
  • Magnaflux & ultrasonic crack detectors
  • Spectro Analyzer
  • Hardness Tester
  • Laser Marking Machines

To catalog
Home | About Us | Products | Export Market & Clientele |Downloads | Career with Us | Testimonial | Contacts

© 2009 Neptune Engine Components. All rights reserved.

All Models, Brand name, Logo(s), Part numbers etc., wherever used, are registered to their respective owners.