Mitutoyo Surftest SJ-310 Portable Surface Roughness Tester
Mitutoyo Surftest SJ-310 Portable Surface Roughness Tester
Part #:178-571-11A
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Key Features
- Advanced portable roughness measurement
- 5.7" color touchscreen
- Built-in thermal printer
- Graphical surface-profile display
- Multiple measurement parameters
- Resolution down to 0.001 µm
- Multiple detector orientations
- Vertical measurement capability
- Upside-down measurement capability
- Extensive analysis functions
- Excellent choice for advanced quality-control applications
Overview
The Mitutoyo Surftest SJ-310 is an advanced portable surface roughness tester for customers who need more analysis capability than a basic handheld profilometer while still requiring a portable instrument.
Display and Documentation
A large 5.7-inch color touchscreen provides graphical measurement information and intuitive operation, and the built-in thermal printer allows results to be documented at the machine without connecting an external printer — a practical difference when inspection records have to accompany the part rather than be reconstructed later.
Detector Orientation
The detector can be positioned in multiple orientations, including vertical and upside-down measurement, which provides real flexibility on difficult workpiece configurations where the surface of interest cannot be presented to the instrument conventionally.
Applications
Advanced quality-control applications, aerospace and automotive manufacturing, precision components, and any inspection requiring documented surface-finish results at the point of measurement.

Specifications
| Manufacturer | Mitutoyo |
|---|---|
| Series | Surftest SJ-310 |
| Part Number | 178-571-11A |
| Resolution | Down to 0.001 µm |
| Display | 5.7" color graphic touchscreen |
| Printer | Built-in thermal printer |
| Detector Orientations | Multiple, including vertical and upside-down |
| Analysis | Graphical surface-profile display, extensive analysis functions |