airless shot peening machine in india

Airless shot peening has become a cornerstone treatment for extending component life in aerospace, automotive, railways, heavy engineering, and energy sectors. As fatigue failures get costlier and quality expectations soar, manufacturers across the country are moving from basic blasting to controlled airless shot peening for predictable compressive stresses and repeatable results. If you’re evaluating an Airless shot peening machine in India, this guide explains how the process works, what to look for, and why SFECINDIA (Surfex India) is a trusted partner for turnkey peening solutions.  Shot Blasting Machine,  Shot Blasting Machine Manufacturers, Robotic Shot Peening Machine,  shot peening machine,  Robotic Shot Peening Machine Manufacturers , shot blasting machine manufacturers in india , shot peening machine manufacturers in india, shot peening machine manufacturers, Roll Etching Machine Manufacturers, Roll Texturing Machine Manufacturers, Shot blasting machine manufacturer, shot blasting machine manufacturers in asia, CNC Shot peening Machine

https://sfecindia.net/

https://sfecindia.net/shot-peening-machine.html

https://sfecindia.net/robotic-shot-peening-machine.html

https://sfecindia.net/roll-etching-machine.html

https://sfecindia.net/shot-peening-for-gears.html

What is Airless Shot Peening?

Shot peening is a cold working process that bombards the surface of a component with small spherical media (steel shot, stainless shot, or ceramic) to induce a uniform layer of compressive residual stress. This stress layer dramatically improves fatigue strength, resists stress corrosion cracking, and reduces the likelihood of micro-crack propagation.

Unlike air-driven systems that use compressed air nozzles, airless shot peening machines use high-efficiency centrifugal blast wheels to accelerate media. The wheel blades sling shot at controlled velocity and coverage onto the work surface. The result: higher throughput, lower operating cost per part, and a compact footprint—ideal for high-volume Indian manufacturing lines.

Why Choose Airless Over Air Peening?

• Productivity at Scale: Wheel-based propulsion delivers high media flow rates, making airless systems perfect for springs, gears, hubs, leaf springs, crankshafts, fasteners, and chassis parts in automotive and rail.
  
  

• Lower Energy Cost: Eliminating large compressors reduces energy bills and maintenance complexity.
  
  

• Consistent Intensity: With precise control over wheel speed, media size, and flow, the machine maintains stable Almen intensity and coverage.
  
  

• Robust Construction: Airless peening cabinets are heavy-duty with wear liners, ensuring long service life in demanding Indian shop floors.
  
  

Key Performance Variables (and How SFECINDIA Controls Them)

Almen Intensity: The “strength” of peening measured using Almen strips. SFECINDIA machines use VFD-controlled wheel speeds, calibrated flow valves, and robust process recipes to hit your target intensity window consistently.

Coverage: Defined percentage of the surface that’s impacted at least once. Our automated part handling and fixture design (indexing turntables, hanger-type rotary fixtures, or tumblast barrels) ensure uniform exposure and repeatable coverage.

Media Quality: Rounded, graded shot is essential. SFECINDIA integrates magnetic/airwash separators and screens to maintain media roundness and size distribution—critical to stable intensity and surface finish.

Exposure Time: PLC/HMI control synchronizes wheel on/off, part rotation/translation speed, and cycle timing to achieve specified coverage without over-peening.