400pcs Common Rail Injector Shim and Calibration Shim B21/B21/B23/B24/B27 Adjusting Washers Shims Injection Valves

Technical specifications

Customization guide

Adjustable parameters include thickness (±0.01mm tolerance) and hole diameter to meet specific engine tolerances. Material grades (e.g., Inconel for extreme heat) or coatings can be customized for specialized applications.

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With these shims, you can achieve precise fuel injection timing critical for diesel engine performance. Their corrosion-resistant design ensures longevity in harsh environments, while standardized sizes simplify maintenance and retrofitting.

Choose your model

Supplier's note

1. Technical Breakthroughs:

   • Material Grade Upgrade: The Advanced Model’s ASTM 316 stainless steel offers 40% better corrosion resistance than Base Model, ideal for marine or chemical environments.
   • Expanded Thickness Range: Pro Model’s 0.05–1.0mm range accommodates extreme engine recalibration needs.
   • Precision Tolerances: ±0.01mm thickness accuracy ensures minimal fuel delivery errors.

2. Version Selection Guidance:

   • Base Model: Suitable for standard diesel engines requiring basic calibration adjustments (e.g., light commercial vehicles).
   • Advanced Model: Recommended for heavy-duty applications (e.g., mining equipment) needing corrosion resistance and broader thickness options.
   • Pro Model: Best for custom engine builds or extreme conditions (e.g., racing, aerospace), where tailored material and geometry are critical.

With the Pro Model’s Inconel option, you can handle temperatures up to 1,200°C—20% higher than industry standards—ensuring reliability in high-stress industrial machinery. Pair this with its customizable geometry to eliminate fitting gaps, directly enhancing fuel efficiency and engine longevity.