Portable Hardness Tester

Your Professional Portable Hardness Tester Manufacturer & Supplier

Founded in February 1948, the company was formerly known as Shandong Yexian Material Testing Machine Factory and Laizhou Testing Machine General Factory. It was officially renamed Laizhou Huayin Testing Instrument Co., Ltd. in 1990. China's first Rockwell, Brinell, Vickers, Shore, Leeb, and Scleroscope hardness testers were all independently developed by our company. We provide 120+ models, advanced production capacity, and comprehensive solutions for global material testing industries.

Why Choose Us

Strong Group Strength

With annual production of over 10,000 hardness testers and 100,000 test blocks, and four subsidiary companies, we operate as a large-scale, integrated manufacturer with solid industry capacity.

Complete Product Range

More than 120 models are available, covering Brinell, Rockwell, Vickers, Shore, Leeb, and multi-function hardness testing equipment for different industrial requirements.

Advanced Manufacturing Capability

Equipped with CNC machining and precision production systems, we ensure consistent quality, reliable performance, and efficient large-volume manufacturing of testing instruments and accessories.

Professional Service Support

We provide full-process support including technical consultation, product selection guidance, remote installation assistance, and operator training to ensure smooth equipment operation.

Specification

Item	Specification
Impact device	D type
Hardness system	Leeb HL, Brinell HB, Rockwell HRA, HRB, HRC, Vickers HV and Shore HS
Measuring range	HLD (170-960), HRA (59-85), HRB (13-100), HRC (18-68), HB (19-655), HV (80-976), HS (32-100)
Measuring range	HLD (170-960)
Indication error	±5HLD (760±30HLD)
Measurement direction	360° in any direction
Display	OLED 128x36 graphic dot matrix LCD
Data storage	373-2688 groups (impact times 32-1)
Battery	4.2V, 300mAh lithium battery
Charging time	1-2 hours
Charging power supply	5V/500mA
Continuous working time	about 30h
Communication interface	USB, Bluetooth communication
Ambient temperature	0~40℃
Overall dimensions	145x33x28(mm)
Weight	about 95g

Key Advantages of Portable Hardness Tester

Compactness and Versatility
Portable hardness testers are highly regarded for their compact design and versatile applications across diverse industries. Their lightweight construction allows easy transportation to various locations, making them particularly suitable for on-site inspections and remote testing scenarios.

Ease of Use
One key benefit of portable hardness tester is their user-friendly interface. These devices are typically equipped with intuitive controls and clear display screens, allowing individuals with minimal training to conduct reliable hardness tests efficiently. This ease of use significantly minimizes the time and effort required for material testing, enhancing overall productivity.

Wide Range of Applications
Portable hardness testers are highly versatile, finding applications in diverse environments such as:
Industrial manufacturing: Ensuring the quality of metal parts and components.
Laboratories: Conducting detailed material analysis and research.
Field inspections: Performing quality checks on-site in construction or remote locations.

Accuracy and Reliability
Despite their compact design, portable hardness testers deliver accurate and reliable measurements. Engineered for durability in harsh conditions, these instruments ensure consistent performance, safeguarding the integrity of the materials under examination.

Types of Portable Hardness Tester

Ultrasonic Contact Impedance (UCI) Testers
Ultrasonic portable hardness testers utilize the ultrasonic contact impedance (UCI) method. This technique involves applying a vibrating rod with a diamond tip to the surface of the material under investigation. The change in impedance resulting from the indentation is subsequently used to calculate the material's hardness. UCI testers are particularly advantageous for assessing thin materials, coatings, and small components.
Applications:
• Thin materials
• Hard-to-reach areas
• Coatings and surface treatments

Leeb (Dynamic) Testers
Leeb hardness testers operate on the principle of measuring rebound. In this method, a test tip is propelled against the material, and the velocity of the rebound is recorded. The hardness of the material is then determined by calculating the ratio of the rebound velocity to the impact velocity. These testers are particularly well-suited for assessing large and heavy components, providing accurate and reliable results in industrial applications.
Applications:
• Large, heavy objects
• Castings and forgings
• Weld inspections

Combined (Leeb + Ultrasonic) Testers
Combined testers offer the advantage of utilizing both UCI and Leeb methods. This enables users to select the most appropriate testing technique according to the specific material and application requirements. This dual functionality enhances their adaptability to a diverse range of testing needs.
Applications:
• Versatile environments
• Mixed material types
• Comprehensive testing requirements

Materials Tested with Portable Hardness Tester

Metals and Alloys

Steel (hardened, stainless, carbon), aluminum, brass, titanium, copper, and cast iron.

Coatings and Treatments

Surface layers, heat-treated components, nitrided surfaces, and thin coatings.

Plastics and Polymers

Thermoplastics, rubber, and composite materials.

Specialized Materials

Ceramics, carbides, and lightweight alloys.

Working Process Of Portable Hardness Tester

A portable hardness tester works by measuring how much a material resists deformation, using various physical principles depending on the model. One of the most popular and widely used methods is the Leeb rebound test.

Leeb Rebound Method
You'll use a device equipped with a spring-loaded impact body that strikes the material's surface. The tester then measures how fast that body rebounds compared to how fast it was moving at impact. The result is a Leeb Hardness value (HL), calculated using the formula:
HL = (Rebound Velocity / Impact Velocity) × 1000
A harder material causes a faster rebound because it absorbs less energy, giving you a higher HL number. These readings can then be converted into standard hardness scales like Rockwell, Brinell, or Vickers for easier comparison.

Other Testing Methods
• Ultrasonic Contact Impedance (UCI)
You'll press a vibrating rod with a diamond tip into the material under a fixed load. The device detects shifts in vibration frequency caused by the material's hardness. This method works best for small, thin, or precision parts.
• Portable Rockwell Testers
These function like lab-based Rockwell machines but in handheld form. They apply a static load and measure indentation depth, ideal for quick checks with known standards.
• Magnetic Hardness Testers
These use a magnetic probe to apply force and detect displacement or friction. Based on Rockwell principles, they're typically used on specific ferromagnetic materials.

Our Service

Huayin Hardness Testers has established a full-process service system to ensure an excellent purchasing and user experience.

Pre-sales

Professional consultation, accurate demand analysis, expert guidance on model selection, technical parameters, and application scenarios.

In-sales

Remote video support for installation and commissioning, plus one-on-one operation training to ensure fast and efficient use.

After-sales

Up to one-year warranty, 24-hour response time, lifetime maintenance service, free technical support, and maintenance guidance.

Packaging and Shipping

Packaging	Industrial-Grade Export Wooden Crate / Reinforced Cardboard Box + Internal Shock Protection
Transportation methods	Sea Freight / Air Freight / Express (DHL, FedEx, etc.)

FAQ

Q: How do portable hardness testers work?

A: Portable hardness testers assess material hardness by applying a defined force to the surface and recording how the metal reacts. Depending on the device, the measurement principle may be based on rebound energy (Leeb method) or on changes in ultrasonic vibration as a diamond tip contacts the material (UCI method). The instrument then converts the measurement into standard hardness scales used in industry.

Q: How accurate are portable hardness testers?

A: When it comes to modern portable testers, they're pretty accurate — though you'll want to make sure the surface is properly prepped first. A few things can throw off your readings: how rough or smooth the surface is, what kind of material you're testing, and whether your probe's been calibrated recently. Oh, and if you're doing really critical work, it's worth double-checking your results against some standard hardness blocks.

Q: What hardness scales can a portable hardness tester measure?

A: Most portable hardness testers can measure Leeb HL, HRC, HRB, HB, HV, HS, and other hardness scales.

Q: What materials can be tested with a portable hardness tester?

A: It can test steel, stainless steel, cast iron, aluminum alloys, copper alloys, and other metal materials.

As one of the leading portable hardness tester manufacturers in China, we warmly welcome you to wholesale discount portable hardness tester in stock here from our factory. If you have any enquiry about quotation, please feel free to email us. For price consultation, contact us.

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