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Craftsmanship

Heat Treatment

Either carburizing or nitriding heat treatment is carried out over a long period of time to a sufficient depth, and the surface hardness is checked batch by batch.

Coating

After the original titanium-plated series was well received by customers, it cooperated with MIRDC Taiwan to develop DLC-diamond-like carbon coating series plungers. Recently, a double-coated series with both core and shell coatings has been launched.

Clearance

The production line extensively uses CNC machining equipment and experienced personnel with skilled techniques. The assembly clearance between components can reach 2µm.

Straightness / Roundness

The plunger couplings on the production line are measured one by one by means of an automatic multi-point laser outer diameter and roundness tester, enabling us to produce plungers with straightness and roundness of an extremely high standard.

Quality Control Measures

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01
  • Material Heat Treatment Hardness Inspection

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02
  • Appearance Dimension Inspection

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03
  • Plunger Straightness and Roundness Inspection

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04
  • Pressure Test of the Delivery Valve

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05
  • Nozzle Atomization Test

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06
  • Surface Roughness Test

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07
  • Coating Test:
    • Surface Roughness Inspection
    • Surface Hardness Test
    • Coating Thickness Test
    • Coating Adhesion Test

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08
  • Pressure Test after Plunger Assembly

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Industry-University Cooperation

Technical cooperation with Taiwan Metal Industry Research and Development Center to develop DLC-diamond-like carbon coating series plungers

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Inspection Equipment

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Laser Engraving Machine
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Appearance, Hardness, Roughness Inspection
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3D Measuring Arm