Surface Roughness Tester Manufacturer,Supplier and Exporter in India
Product Code : EL-TE-13285
Quick Answer: The Surface Roughness Tester is a pocket-size instrument that gives both Ra and Rz parameters and measures flat, outer cylinder and sloping surfaces.
Last updated: October 2026
Key Features
- Pocket-size instrument
- Large measuring range, listed as suitable for most materials
- Measures flat, outer cylinder and sloping surfaces
- Gives both Ra and Rz parameters in one instrument
- External calibration at the keyboard
Technical Specifications
| Specification | Value |
|---|---|
| Parameters | Ra and Rz |
| Surfaces measured | Flat, outer cylinder and sloping |
| Size | Pocket-size |
| Calibration | External calibration at the keyboard |
About This Product
A surface roughness tester measures the fine irregularities left on a surface by machining or finishing. Ra is the average roughness of the profile, while Rz is based on the peak-to-valley height, so using both gives a fuller picture of a surface. In a workshop or engineering laboratory, students use such a tester to compare turned, ground or polished samples and to link surface finish with the process used.
Frequently Asked Questions
Q1. Which parameters does the Surface Roughness Tester measure?
It gives both Ra and Rz parameters in one instrument.
Q2. Which surfaces can it measure?
It measures flat, outer cylinder and sloping surfaces.
Related: Testing Equipments, Crude Fiber Analyzer, Constant Temperature Refrigerated.
For a quotation on the Surface Roughness Tester, contact School Lab Equipment India.