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Guchuan Piston for Excavator Hydraulic Rock Breaker Hammer

Hydraulic Breaker Parts
November 27, 2025
Category Connection: Hydraulic Breaker Parts
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Tags:
#excavator breaker parts #breaker front cover #breaker through bolt
Brief: Thinking about an upgrade? This short demo helps you evaluate the fit. Watch as we showcase the Guchuan Piston for SB40, SB50, SB81, SB121, and SB151 hydraulic rock breaker hammers. You'll see how these high-alloy steel pistons are engineered for precision, durability, and peak breaker efficiency in demanding applications like mining and demolition.
Related Product Features:
  • Compatible with SB/GCB series models including SB40/GCB60, SB50/GCB100, SB81/GCB220, SB121/GCB320, and SB151/GCB400.
  • Manufactured from premium materials like 616V, 20cr2ni4, and GCr15 for excellent fatigue strength and impact toughness.
  • Features optimal hardness profile with balanced surface hardness and inner toughness to resist cracking.
  • Precision dimensional accuracy ensures perfect fit and smooth operation within the breaker cylinder.
  • Advanced surface finishing minimizes friction and reduces wear on seals and cylinder walls.
  • Engineered for enhanced durability to resist wear, deformation, and fatigue under continuous heavy-duty use.
  • Improves breaker efficiency with optimized design for maximum energy transfer and higher impact power.
  • Backed by a 1-year warranty and designed to reduce downtime with longer service life.
Faqs:
  • What breaker models are these Guchuan pistons compatible with?
    These pistons are specifically designed for SB/GCB series hydraulic breakers, including models like SB40/GCB60, SB50/GCB100, SB81/GCB220, SB121/GCB320, and SB151/GCB400, ensuring perfect fit and reliable performance.
  • What materials are used in Guchuan pistons and why are they important?
    Guchuan pistons use premium materials including 616V, 20cr2ni4, and GCr15. These materials provide excellent fatigue strength, impact toughness, and superior surface hardness, ensuring the piston withstands repeated high-impact loads without deformation or premature failure.
  • How do these pistons improve breaker efficiency and reduce downtime?
    The pistons are precision-engineered with optimal hardness profiles and advanced surface finishing, which ensures maximum energy transfer for higher impact power and smoother operation. This enhanced durability leads to longer service life, fewer replacements, and reduced maintenance costs.
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