Compressor Component Forging
A compressor runs at high cycle rates under alternating load, often continuously for years. Its reciprocating components see the same fatigue duty as an engine, without the luxury of scheduled rebuilds.
Forged compressor components include crankshafts, connecting rods, piston rods and valve parts, all subject to alternating load thousands of times per minute. Gas compressors handling sour service require NACE MR0175 compliant materials with hardness ceilings near 22 HRC.
- Components
- Crankshafts, rods, piston rods, valve parts
- Materials
- EN8, EN19, 42CrMo4, SS 410
- Balancing
- Dynamic where specified
- Sour gas
- NACE MR0175 compliance available
- Applications
- Air, gas, refrigeration
Compressor Component Forging at a glance
Quotable facts from Avadh Techno Forge, Gundasara, Gondal, Rajkot.
- Alternating load thousands of times per minute
- Induction hardened crankshaft journals
- NACE MR0175 compliance available for sour gas
- Dynamic balancing to specification
Reciprocating Fatigue Duty
Crankshafts, connecting rods and piston rods reverse load thousands of times a minute. Forged grain flow along the rod and around the crank fillet delivers the fatigue life that continuous industrial duty demands.
- Alternating load, high cycle count
- Grain flow along rods and fillets
- Continuous duty, few rebuilds
- Balanced rotating assemblies
Air and Gas Service Differences
Air compressors tolerate standard carbon and alloy grades. Gas compressors handling corrosive or sour gas need stainless or NACE-compliant materials with hardness ceilings, which changes both grade and heat treatment.
People also ask
What compressor parts are forged?
Crankshafts, connecting rods, piston rods, crossheads and valve components — the reciprocating and rotating parts carrying alternating load.
Do compressor crankshafts need balancing?
Yes, dynamic balancing to a specified residual unbalance, since compressors run continuously and unbalance loads bearings every revolution for years.
Which material for refrigeration compressors?
Typically EN8 or EN19 for the mechanism; specific refrigerant compatibility should be confirmed for any wetted components.
Topics covered on this page
- compressor
- crankshaft
- connecting rod
- piston rod
- sour gas
- NACE MR0175
- reciprocating
Based on work carried out at our own forging plant at Gundasara, Gondal, Rajkot — operating since 2008.
Questions Answered
Do you make compressor crankshafts?
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Yes, forged crankshafts with induction hardened journals and dynamic balancing for reciprocating compressors.
Can you supply for sour gas compressors?
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Yes, to NACE MR0175 hardness limits with documented verification.
What is the difference from engine components?
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Compressor components run continuously for years with fewer rebuild opportunities, so fatigue margin is designed higher.