Membrane filling tool

Precision Membrane Filling Tool for Bosch Piezo Injectors

A specialized, high-precision tool engineered for the safe and accurate installation of sealing membranes in Bosch Piezo Common Rail injectors. This tool is designed to prevent damage to delicate elastomeric or composite membranes during the filling and seating process—a critical step in ensuring injector longevity and optimal performance under extreme fuel pressure conditions.

Technical Specifications & Design

• Material: Machined from hardened tool steel with a corrosion-resistant black oxide finish for durability in workshop environments.
• Construction: Two-piece modular design:
  • Component A: Features an internal thread interface for engaging with the injector body or service fixture.
  • Component B: Features an external thread for securing the membrane assembly during compression.
• Ergonomics: Knurled grip surfaces provide secure handling, even with oily or gloved hands, minimizing slippage during torque application.
• Precision Machining: Internal geometry is dimensionally matched to standard Bosch Piezo injector membrane profiles, ensuring consistent compression without distortion or edge damage.

Application & Functionality

This tool is used during the overhaul or replacement of sealing membranes in Bosch Piezo injectors. The procedure involves:

1. Placing the new membrane between the two components of the tool.
2. Securing the assembly onto the injector body or service fixture.
3. Applying controlled torque to compress the membrane evenly, ensuring proper seating and sealing.

The tool’s design eliminates the risk of membrane misalignment or deformation, which can lead to fuel leakage, pressure loss, or injector failure.

Why Choose This Tool?

• Professional Grade: Built for workshops that demand reliability and repeatability.
• Bosch Piezo Specific: Designed with the dimensional and functional requirements of Bosch Piezo injectors in mind.
• Long-Term Investment: High-quality materials and precision machining ensure extended service life.
• Made in Serbia: Manufactured to strict quality standards, offering local support and fast delivery.