Piston Head

The piston head is a critical engine component that moves up and down within the cylinder to compress the fuel-air mixture and transfer combustion force to the crankshaft. It endures high temperatures and pressures, typically made from forged aluminum alloy for strength and thermal conductivity. Piston heads often include features like valve reliefs, ring grooves, and oil channels for efficient lubrication and sealing. Their shape and design directly affect engine efficiency, combustion quality, and emissions. Precision machining ensures optimal fit, sealing, and performance under high-speed operation. Material: Forged Aluminum Alloy (e.g., 4032 or 2618) Diameter: 75–100 mm (depends on engine size) Compression Height: ~30 mm Weight: ~300–500 grams Number of Ring Grooves: 3 (2 compression rings, 1 oil ring) Coating: Graphite or Molybdenum for friction reduction Operating Temperature: 300–400°C Max Pressure Endured: Up to 200 bar Tensile Strength: 300–450 MPa Surface Finish: Fine finish (Ra ≤ 0.8 µm)