Sintered Bronze Components

Sintered Bronze Components

Porous Bronze Filters, Mufflers, Breathers and Precision Components for Pneumatic and Industrial Applications

CMI manufactures a wide range of sintered bronze components designed for pneumatic systems, air filtration, compressors, instrumentation, and low-pressure gas and liquid applications.

With a uniform porous structure and excellent airflow characteristics, sintered bronze components provide effective filtration, noise reduction, pressure equalization, and spark suppression in industrial and commercial systems.

These components are widely used as pneumatic mufflers, breathers, filters, silencers, and valve protection elements, offering a cost-effective and reliable solution for high-volume applications.

Key Features

• Uniform pore structure with stable permeability
• High airflow capacity with low pressure drop
• Excellent corrosion resistance for air and neutral gases
• Strong acoustic damping performance for noise reduction
• Good mechanical strength for industrial environments
• Suitable for spark arresting and flame suppression
• Cost-effective for large-scale and OEM production
• Available in a wide range of shapes and threaded configurations
• Reliable performance in compressors, valves, and pneumatic systems

Available Materials

• Standard Porous Bronze (Cu + Sn)
  • Typical composition: approximately 90% Copper + 10% Tin
  • Optimized for airflow, filtration, and noise reduction
• Customized Bronze Alloys
  • Enhanced corrosion resistance
  • Optimized airflow and acoustic performance

Shapes & Dimensions

Bronze Mufflers / Silencers

• Used in pneumatic valves, cylinders, compressors, and actuators
• Thread types: NPT, BSP, metric
• Custom sizes and configurations available
• Effective noise reduction and airflow control

Porous Bronze Filters & Breathers

• Used for venting, pressure equalization, and dust protection
• Available as discs, plugs, cones, and vent assemblies
• Stable airflow with particulate blocking capability

Porous Bronze Bushings / Sleeves

• Self-lubricating components for machinery
• Custom inner and outer diameters
• Used in small motors, shafts, and rotating equipment

Bronze Filter Discs / Rings

• Used for gas filtration, spark arresting, and instrumentation
• Thickness: typically 1 – 10 mm
• Custom dimensions available

Custom Bronze Components

• Conical silencers and domed breathers
• Cylindrical mufflers and threaded fittings
• Precision small parts and assemblies
• OEM geometries based on drawings

Typical Applications

Pneumatic & Automation Systems

• Solenoid valves and pneumatic cylinders
• Actuators and air tools
• Exhaust noise suppression

Compressors & Pumps

• Air intake filters
• Exhaust silencers
• Pressure relief and breather vents

Industrial Machinery

• Dust-proof breathers
• Airflow equalization components
• Spark arrestors

Automotive & Transportation

• Valve protection components
• Emission control venting
• Fluid reservoir breathers

Instrumentation & Sensors

• Sensor protection caps
• Precision airflow restrictors

Consumer & Household Products

• Appliance breathers
• Noise reduction airflow components
• Air purification devices

Customization & OEM Services

• Custom pore size (typically 20 – 200 μm)
• Custom alloy composition and density
• Precision geometries based on 2D or 3D drawings
• Threaded, flanged, welded, or press-fit configurations
• Acoustic performance optimization
• Reverse engineering of existing components
• High-volume production for OEM customers

Why Choose CMI

• Advanced sintered bronze manufacturing capability
• Engineering expertise in airflow and acoustic performance
• Consistent quality suitable for mass production
• Full compatibility with international thread standards (NPT / BSP / metric)
• Ability to replace international brand components
• Fast delivery with stable supply capacity