Plungers

Hyperion Materials & Technologies manufactures high-performance plungers and stepped cylinders in cemented carbide, ceramics, and steel. Components are available in stepped and non-stepped configurations, with or without center ends. Hyperion partners closely with customers to optimize plunger design for demanding wear-part applications across pumps, compressors, and ultra-high-pressure waterjet systems.

With decades of experience supporting precision fluid-handling applications, Hyperion manufactures tungsten carbide plungers, ceramic plungers, and steel plungers engineered for exceptional wear resistance, dimensional stability, and surface finish performance in demanding operating environments.

Hyperion plungers are engineered for long service life in abrasive, high‑pressure, and high‑duty operating conditions. By using monolithic materials rather than surface coatings, Hyperion plungers help eliminate coating‑related failure modes while delivering excellent wear and corrosion resistance. Precision tolerances, optimized geometries, and fine surface finishes contribute to reduced friction, lower wear rates, and extended component life, supporting stable performance and consistent system efficiency in critical pump and compressor applications.

Hyperion plungers are also widely used in high-pressure waterjet applications where precision tolerances and ultra-fine surface finishes are critical to system performance and component life. Advanced grinding and precision lapping capabilities enable exceptionally smooth surfaces that help reduce wear, improve sealing performance, and extend service intervals in abrasive waterjet operating environments.

Materials: Carbide, Ceramic & Steel

Tungsten Carbide Plungers

Designed for extreme wear resistance, high stiffness, and excellent dimensional stability, tungsten carbide plungers are suitable for the most demanding pump, compressor, and waterjet applications where abrasive media, high pressure, or corrosive environments are present.

Hyperion tungsten carbide plungers are manufactured with tight dimensional tolerances and precision surface finishes to support long wear life and reliable sealing performance in ultra-high-pressure systems. These plungers are commonly used in waterjet intensifier pumps and other critical fluid-handling equipment requiring maximum durability and precision.

Ceramic Plungers

Ceramic plungers are ideal for applications requiring chemical resistance, low friction, and high surface finish quality. Ceramic materials provide strong performance in corrosive or low-lubrication environments while supporting extended service intervals.

For waterjet applications, ceramic plungers offer excellent wear resistance and smooth surface characteristics that help improve sealing efficiency and reduce replacement frequency in high-pressure operating conditions.

Steel Plungers

A robust and cost‑effective option for moderate wear environments. Steel plungers provide toughness and versatility for a wide variety of pump and compressor systems.

Waterjet Plungers & Components

Hyperion manufactures precision waterjet plungers and related components for ultra-high-pressure waterjet systems. Tight tolerances and fine surface finishes help improve wear life, sealing performance, and system reliability in demanding operating environments.

Available materials include tungsten carbide, ceramics, and steel depending on application requirements. Hyperion also provides precision grinding and lapping capabilities for waterjet plungers and other critical fluid-handling components.

Technical Specifications

The specifications below summarize standard dimensions, surface finishes, tolerances, and material capabilities available for Hyperion plungers. Custom configurations are available upon request.

Size Range

Standard plunger dimensions are available within the following outer diameter and length ranges:

• Outer Diameter (OD): ≤ 115 mm
• Length (L): ≤ 370 mm

Tolerances

For applications requiring tighter dimensional control, plungers can be ground to precise tolerances using a range of cemented carbide grades optimized for wear and corrosion resistance:

• Ground Tolerances: OD ≥ ±0.006 and L ≥ ±0.06
• Grades with hardness (HV30): 900 - 2200
• Grades resistant to corrosion down to pH > 2

Additional Specifications

Optional design features and finishing specifications are available to support specific functional, assembly, or performance requirements.

• Center ends: one or two
• Minimum center diameter (d): 1.2 mm
• Center length: 2.5 × OD
• Achievable surface finish (Ra): ≥ 0.05
• Transition steps available

Precision lapping services are available for waterjet plungers and other high-pressure fluid-handling components requiring extremely fine surface finishes and tight dimensional control.

Customized packaging is also available upon request, including plastic trays, thermo‑/vacuum‑sealed packaging, and bubble envelopes. Additional sizes, tolerances, carbide grades, and small‑quantity test batches are available as needed.

Related Fluid‑Handling Wear Parts

Hyperion also supplies several other cemented carbide components for fluid‑handling systems, including:

• Bushings
• Decanter and centrifuge parts
• Homogenizer components
• Spray systems
• Rings

Your Hyperion salesperson can help select the most suitable carbide grade and part configuration for your application.

Did you know you can recycle your cemented carbide with Hyperion? Visit our recycling page or contact us for details.