Line Up News

Screws to DIN Standards: Types and Norms Overview

DIN 933, 912, 931 and more: which DIN standard belongs to which screw type, and how DIN and ISO designations relate to each other.

Surface Roughness Measurement: Methods and Reports

Surface roughness measurement explained: how contact and optical methods work, and why cut-off wavelength (0.08 to 8 mm) changes the result.

Powder Coating: Process, Benefits and Applications

Powder coating explained: how the process works, what DIN 55633/55634 require for coating thickness, and how to verify quality on arrival.

Laser Cutting: Process, Tolerances and Materials

How laser cutting works, which tolerances under ±0.1 mm are realistic, and when domestic contract manufacturing beats sourcing from the Far East.

Surface Roughness: Ra, Rz and the New ISO 21920

Surface roughness explained: what Ra and Rz mean, which symbols apply on technical drawings, and what changed under the new ISO 21920 standard.

Coordinate Measuring Machine (CMM): Types and Accuracy

Coordinate measuring machine (CMM) explained: design, how it works, machine types, and accuracy, plus what buyers should check in inspection reports.