Shenyang Tianxing W-BB75 series Wei-style Hardness Tester is divided into W-BB75 andW-BB75bTwo models for testing copper pipes of different diameters. Shenyang Tianxing W-BB75/W-BB75b Webster Hardness Tester is a testing instrument that can quickly test the hardness of copper on site, W-BB75 Webster Hardness Tester is mainly used to detect copper tubes and copper strips. The W-BB75b model is used for testing fine copper pipes with an inner diameter of as little as 6 mm.Shenyang Tianxing W-BB75 series Wei-style Hardness TesterIt is easy to use, as long as the test plate is clamped with a Hardness Tester, the hardness value can be directly displayed, with high efficiency and good reliability. W-BB75 series Wei-style Hardness Tester is the preferred instrument for testing the mechanical properties of copper pipes.

| Model | W-BB75 | W-BB75b |
| Minimum specimen inner diameter | φ10mm | φ6mm |
| Maximum specimen thickness | 6mm | 8mm |
| Range | 0-20HW (equivalent to 30-96HRF) | |
| Indication error | 0.5HW(5-17HW) | |
| Repeatability Error | 0.5HW(5-17HW) | |
| weight | 0.5kg | |
●Non-ferrous metals industry standard YS/T 471-2004 "Webster Hardness test method for copper and copper alloys"
●National Metrology Verification Regulations JJG944-2013 "Webster Hardness Tester for Metals"
Shenyang Tianxing W-BB75 series Wei-style Hardness TesterIt is used to quickly detect the hardness of copper pipes, plates and strips. It is particularly suitable for fast, non-destructive, piece-by-piece qualification inspection of batches at the production site, sales site or construction site.
1. Pressure needle: The pressure needle made of imported special steel materials and new technology has high hardness, good toughness, long life and good interchangeability. The outer packaging imported from Germany provides comprehensive protection for the pressure needle.
2. Pointer assembly: high-strength pointer, long-term use or wrong operation is not easy to bend and deform.
3. Window: high-strength, high-toughness window glass, not easy to break after impact.
4. Handle: forged aluminum alloy material, anodized upper handle, beautiful, wear-resistant, pollution-resistant.
5. Hardness block: use standard Rockwell Hardness Tester and strictly follow the measurement verification procedures for calibration. The number and hardness value of laser etching, and the traceability data can be checked within the validity period. The surface roughness and flatness meet the requirements of the regulations.
6. High quality: fine parts processing, precision machine assembly, and strict quality inspection ensure the high quality of the instrument.
7. Good stability: the full degree point is stable, the correction point is stable, and the pointer has no "crawling".
8. Easy conversion: Through the conversion table attached to the product manual or the "hardness conversion" mobile phone application, the Webster Hardness value can be converted into Vickers, Rockwell, Brinell and other hardness values.
9. Portability: The high-quality portable instrument case and well-fitting buffer sponge provide portability for the W-BB75 series Webster Hardness Tester and protect the W-BB75 series Webster Hardness Tester as much as possible.
Main unit, Wei-style hardness block, small screwdriver, spare pressure pin, correction wrench, instrument case
Presses, Wei-style hardness blocks, window glass

戴英才 - 《涂料检验方法标准浅谈》