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You are here: Home1 / News2 / Manufacturing Precision Lightweight Pistons for Motorcycle Shock Absor...
  • Precision lightweight pistons for motorcycle shock absorbers

    Featuring EN AW 6082-T6 aluminum, PTFE sealing, and 20-micron anodized coating.

Manufacturing Precision Lightweight Pistons for Motorcycle Shock Absorbers

In a recent project, we completed the production of lightweight, precision-engineered pistons designed specifically for motorcycle shock absorbers. These pistons were crafted with advanced manufacturing techniques to meet the high-performance standards required in motorcycle suspension systems. Here’s an overview of the technical details and key features of this project.

Key Features of the Pistons:

  • Material Selection

    • Material Used: EN AW 6082-T6 Aluminum Alloy
    • This high-strength, lightweight aluminum alloy offers excellent machinability and corrosion resistance, making it ideal for applications in demanding environments like motorcycle suspension systems. By switching to this material, we achieved a significant reduction in weight without compromising the structural integrity of the piston.
  • Weight Reduction and Precision Engineering

    • The design goal was to create a lightweight piston while maintaining precise dimensional accuracy. By carefully choosing materials and utilizing advanced machining techniques, we achieved a piston volume of approximately 12.054 to 12.102 cm³.
    • Dimensional Tolerance: Achieved an impressive precision tolerance of ±0.05 mm on critical diameters, ensuring smooth operation within the shock absorber.
  • Bleed Hole Design

    The piston features an ultra-thin bleed hole, which is essential for controlled fluid flow within the shock absorber. Achieving the required dimensions for the bleed hole was crucial to ensure the proper functionality of the shock absorber.

  • Surface Treatment and Coating

    • To further enhance the performance and durability of the pistons, we produced samples in two anodized finishes, one with a 20-micron coating and another with a 40-micron coating.
    • Final Production Choice: After evaluation, the 20-micron anodized coating was chosen for the final production batch. This coating provides an optimal balance of wear resistance and corrosion protection, which is essential in high-performance motorcycle applications.
  • PTFE Sealing Tape Application

    Each piston is carefully fitted with a PTFE sealing tape, providing a tight and durable seal. This enhances the longevity of the pistons by reducing friction between moving parts and providing superior resistance to wear.

Production Process

The pistons were manufactured through a carefully controlled CNC machining process, which allowed us to achieve the strict dimensional tolerances and high-quality finish required for this application. The process involved:

  • CNC Milling and Turning: For precise shaping and detailed features.
  • Anodizing Treatment: Applied in two variations to determine optimal performance in durability and corrosion resistance.
  • PTFE Tape Application: Ensuring an effective seal while reducing friction and enhancing piston longevity.

Quality Control and Testing

To maintain high standards of quality and performance, each piston underwent rigorous quality control procedures, including:

  • Dimensional Verification: Ensuring all critical dimensions fall within the specified tolerance range of ±0.05 mm.
  • Surface Finish Inspection: Verifying anodizing thickness (20 and 40 microns) to ensure consistency across samples and final production.
  • Leak Testing: To confirm the effectiveness of the bleed hole and the PTFE sealing tape under operational conditions.

This project demonstrates our commitment to delivering precision-engineered, lightweight components tailored to our client’s requirements. The advanced machining and surface treatment techniques used in this project highlight our ability to handle complex, high-performance requirements in motorcycle suspension systems.

At Eurobalt, we take pride in our ability to provide end-to-end manufacturing solutions, from prototyping to full-scale production, ensuring that each component we produce meets the highest standards of quality and performance.

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Sat-Sun: closed
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  • Custom Hydraulic Cylinders by Eurobalt: Precision Engineering for Every Need26.02.2025 - 14:20
  • Manufacturing Precision Lightweight Pistons for Motorcycle Shock Absorbers12.11.2024 - 14:52
  • Manufacturing Custom Gear Sets09.08.2024 - 08:36
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