QS metrology

Ra Tester

Ra Tester Manufacturers

QS Metrology is proud to be one of the top Ra Tester manufacturers in India, committed to building and offering high-quality instruments that measure surface roughness with absolute accuracy and repeatability. We build tools that help you check the roughness of a part with ease and trust. Our range of models includes the following:

  • Entry-Level Ra Testers: Ideal for general-purpose use.
  • High-Precision Testers: For critical components with narrow tolerances.
  • Multi-Parameter Devices: Measure Ra, Rz, Rq, Rt, and more.
  • Bluetooth & USB Enabled: For easy data logging and reporting.

All our devices are factory-calibrated and come with a warranty and user training support. They are built for a specific use case. Whether you’re in automotive, aerospace, metalworking, or medical manufacturing, our Ra testers help ensure that your components meet stringent quality and compliance standards, right from the first inspection. It gives you the right read, fast result. That means less waste, more speed, and better workflow.

What Is a Ra Tester?

A Ra tester (short for Roughness Average tester) is a kind of portable device that is designed to help check the smoothness or roughness of a part’s surface. It measures the surface texture of a material and lets you know how rough a part is, on a fine scale like microns. This is key when you want the right grip, slide, bond, or look. With this tool, you can quantify how smooth or rough a surface is, usually in microns (µm), helping you stay within design tolerances and maintain consistency across production batches. At QS Metrology, we know that you need reliable, traceable results every single time. That’s where our engineering expertise and strict quality control make the difference.

Why QS Metrology?

As skilled Ra Tester manufacturers, we know what counts. You need devices that work right each time. You want ease of use, no fuss, and full trust in your readouts. That’s what we give. We build tools that can make your quality control process smarter, faster, and more efficient. 

Industry-Grade Accuracy: Each tester we make is set up to give tight, real-time reads. Expect results that are accurate up to ±0.001 µm. Yep, you read that right. 

 

Rugged & Portable Design: Machinists, QC inspectors, and engineers love our testers because they’re light enough to carry around the shop floor but rugged enough to handle tough conditions Drop it. Use it. Move it easily. 

 

Easy to operate: You don’t need a PhD to take part. You will find intuitive buttons, a modern-looking digital screen and easy plug-and-play operation on our units. Taking digital notepad notes is quick to master, even if you haven’t done it before.

 

Compliance You Can Rely On: Our instruments comply with ISO 4287, JIS, DIN and ANSI standards. So, you never have to worry that an audit or inspection will find you out of compliance.

 

Customization & Support: It is important for you to use a specific probe or export your data results? We design solutions that suit your particular needs. We are still here after you make your purchase. When you need our servicing, recalibration, or spare parts, we are ready to help immediately.

Who Needs Our Ra Testers?

Take a look at the industries and professionals we serve. Automobile: In the automotive field, specialists often check the cylinder liners, camshafts. Metal Fabrication: Maintaining that all welding seams and milled surfaces are within their required ranges. Verifying that all polishing and die-cast parts are to standard with proper tools. Medical Devices: Damaged surgical tools should never be permitted in the operating room. Aerospace: Ensuring absolute compliance in the construction of aerodynamic parts.

No matter the field, if the feel of a face can spoil the work, you need a Ra Tester. Ready to upgrade your surface measurement game? Reach out to QS Metrology—India’s trusted name among Ra Tester manufacturers. Browse our product line or talk to our experts to find the perfect fit for your application.