Diamond Hardness Indenters

Precision Diamond & Ball Indenters for Advanced Material Hardness Testing Applications

JPT manufactures high-precision Hardness Testing Indenters conforming to international hardness testing standards for Rockwell, Vickers, Brinell, and specialized hardness measurement applications. Our indenters are produced using premium-grade natural and synthetic industrial diamonds with ultra-precision lapping and geometrical control to ensure maximum testing accuracy, repeatability, and long operational life.

Each indenter is manufactured under stringent dimensional and angular tolerance control to meet global hardness testing standards including:

• ISO Standards
• ASTM Standards
• DIN Standards
• BIS Standards

The use of superior-grade diamonds, precision polishing technology, and accurate geometrical finishing ensures highly reliable hardness measurement performance for laboratory, metallurgical, research, and industrial quality control applications.

JPT manufactures:

• Vickers Diamond Indenters
• Rockwell Diamond Indenters
• Brinell Ball Indenters
• Custom Hardness Testing Indenters
• Micro & Macro Hardness Testing Tools
• Precision Calibration Indenters

High-Precision Diamond Pyramid Indenter for Micro & Macro Hardness Testing

The Vickers Hardness Indenter is a precision-finished square-based diamond pyramid designed for Vickers hardness testing applications. The indenter features an accurately lapped included angle of:

136°

between opposite pyramid faces as specified under international Vickers hardness testing standards.

The indentation produced under controlled test loads is used to determine the Vickers Hardness Number (HV / VHN) based on indentation surface area calculations.

Technical Features

Precision Diamond Geometry

• Ultra-precision lapped diamond pyramid
• Accurate 136° included angle
• Superior edge sharpness and symmetry
• Excellent dimensional stability

Premium Diamond Quality

Manufactured using:

• High-purity industrial diamonds
• Defect-free crystal structures
• Superior wear-resistant diamond grades

Ensuring:

• Long operational life
• High measurement repeatability
• Stable indentation geometry

Wide Test Load Capability

Suitable for testing loads ranging from:

1 gf to 100 kgf

Applications

Industrial Applications

• Metallurgical laboratories
• Heat treatment verification
• Thin coating evaluation
• Surface hardening analysis
• Precision component inspection

Material Testing Applications

• Ferrous & non-ferrous materials
• Carbides
• Ceramics
• Coated materials
• Thin films
• Aerospace alloys
• Hardened steels

Industries Served

• Automotive Industry
• Aerospace Industry
• Tool & Die Industry
• Medical Device Manufacturing
• Research & Development Laboratories
• Metallurgical Testing Facilities

Precision Diamond Cone & Ball Indenters for Rockwell Hardness Testing

Rockwell Hardness Indenters are precision tools designed to determine material hardness based on indentation depth under specified major and minor test loads.

Depending on the testing scale and material type, Rockwell testing utilizes:

• Diamond cone indenters (Brale Indenters)
• Steel ball indenters
• Carbide ball indenters

Diamond Cone Indenter Features

Precision Brale Geometry

Manufactured with:

• Accurate cone angle geometry
• Controlled spherical tip radius
• Precision lapped diamond surfaces

Ensuring:

• Accurate penetration depth
• Consistent hardness readings
• Long testing life

Rockwell Scale Compatibility

Suitable for:

• Rockwell A Scale (HRA)
• Rockwell B Scale (HRB)
• Rockwell C Scale (HRC)
• Superficial Rockwell Testing

Applications

Material Testing

• Hardened steels
• Heat-treated components
• Tool steels
• Carbides
• Precision machined parts

Industrial Applications

• Production quality control
• Incoming material inspection
• Heat treatment verification
• Manufacturing process validation
• Engineering research

Machine Compatibility

Suitable for use on:

• Analog Rockwell Hardness Testers
• Digital Hardness Testing Machines
• CNC Hardness Testing Systems
• Automatic Hardness Testing Equipment

Precision Steel & Carbide Ball Indenters for Brinell & Hardness Testing Applications

Ball Indenters are precision-manufactured spherical indenters used in Brinell and specialized hardness testing applications where indentation diameter measurement determines material hardness.

These indenters are manufactured using:

• Hardened steel balls
• Tungsten carbide balls
• Precision spherical finishing technology

Technical Features

High Dimensional Accuracy

• Precision spherical geometry
• Excellent roundness control
• Uniform surface finish
• Stable indentation characteristics

Standard Ball Sizes

Available ball diameters include:

1 mm to 5 mm

Custom ball sizes available upon request.

Applications

Brinell Hardness Testing

Suitable for:

• Cast iron
• Aluminum alloys
• Brass
• Copper alloys
• Forged materials
• Structural steels

Industrial Applications

• Manufacturing quality control
• Material durability evaluation
• Heavy engineering inspection
• Metallurgical analysis
• New material development

Precision Lapping Technology

All indenters undergo:

• Ultra-precision lapping
• Optical inspection
• Geometrical verification
• Surface finish inspection

Strict Quality Control

Every indenter is inspected for:

• Angle accuracy
• Tip geometry
• Surface integrity
• Concentricity
• Dimensional tolerances

Superior Performance Benefits

• High hardness measurement accuracy
• Excellent repeatability
• Long operational life
• Stable indentation geometry
• Reduced measurement deviation
• Compliance with international standards

JPT Hardness Testing Indenters are widely used in:

• Automotive Industry
• Aerospace Industry
• Defense Manufacturing
• Tool & Die Industry
• Steel Plants
• Foundries
• Heat Treatment Facilities
• Research Laboratories
• Educational Institutions
• Precision Engineering Industries

Machine Compatibility

Suitable for:

• Vickers Hardness Testing Machines
• Rockwell Hardness Testers
• Brinell Hardness Testers
• Microhardness Testing Equipment
• Universal Hardness Testing Systems
• CNC Automated Hardness Testing Machines

• Manufactured using premium industrial diamonds
• Precision-controlled geometrical accuracy
• Strict international standard compliance
• Excellent wear resistance and testing consistency
• Reliable and repeatable hardness measurement performance
• Custom indenter manufacturing capability
• Suitable for laboratory and industrial production environments

JPT supplies:

• Vickers Diamond Indenters
• Rockwell Diamond Cone Indenters
• Brinell Ball Indenters
• Carbide Ball Indenters
• Microhardness Indenters
• Custom Hardness Testing Indenters
• Precision Calibration Indenters

Custom specifications available as per machine model, testing standard, and application requirements.