Laser Diameter Guage

Precision That Pays Off: Puretronics Laser Diameter Gauge Looking to cut costs, reduce rejections, and raise your quality game?

Puretronics’ Laser Diameter Gauge (LDG) gives you an edge where it matters most—precision, reliability, and real-time measurement control. Whether you're producing wires, medical tubes, 3D printer filaments, or complex auto parts, our contactless laser technology ensures consistent performance, whatever the material, color, or temperature.

What Is the Puretronics Laser Diameter Gauge?

The Puretronics LASER series is a non-contact, high-precision diameter measurement system, built for circular cross-sections ranging from 0.8 mm to 150 mm, with ±0.1% accuracy. Housed in a rugged aluminum case, it operates reliably in temperatures up to 50°C and relative humidity up to 95% (non-condensing).

It’s a complete solution for diameter measurement, process control, and cost optimization, integrating seamlessly with your production setup through RS232/RS485 digital interfaces and advanced signal processing.

Technical Specifications
  Laser 2008 Laser 2008 - 45 Laser 2008B Laser 2020 Laser 2030 Laser 2060
Measurement Range 0.8 – 35mm 0.8 – 45mm 1 – 150mm 0.1 – 20mm 0.1 – 30mm 0.5 – 60mm
Gate Size 50mm 50mm 190mm 30mm 35mm 70mm
Scan Velocity 156 mtr/sec 156 mtr/sec 210 mtr/sec      
Resolution 1 micron 1 micron 10 micron 1 micron 1 micron 1 micron
Repeatability ±2 micron or ±0.1% of reading value ±2 micron or ±0.1% of reading value ±20 micron or ±0.1% of reading value ±3 micron ±0.005% D* ±3 micron ±0.005% D* ±0.5 micron ±0.01% D*
Accuracy ±2 micron or ±0.1% of reading value ±2 micron or ±0.1% of reading value ±20 micron or ±0.1% of reading value ±3 micron ±0.005% D* ±3 micron ±0.005% D* ±0.5 micron ±0.01% D*
Scan Rate 416 scans/sec 416 scans/sec 416 scans/sec 1200 scans/sec 1600 scans/sec 1600 scans/sec
Operating Temperature 0 – 50°C 0 – 50°C 0 – 50°C 0 – 50°C 0 – 50°C 0 – 50°C
Relative Humidity 0 – 95% non Condensing 0 – 95% non Condensing 0 – 95% non Condensing 35% to 85% Non Condensing 35% to 85% Non Condensing 35% to 85% Non Condensing
Power Supply 85VAC to 285VAC 85VAC to 285VAC 85VAC to 285VAC 230VAC 230VAC 230VAC
Dimension (L x W x H) 385 x 50 x 85 385 x 50 x 85 220 x 82 x 365 360 x 75 x 300 260 x 55 x 232 385 x 56 x 232
Weight Approx 4.7kg 4.7kg 14kg 12kg 12kg 15kg
Communication RS232 / RS485 RS232 / RS485 RS232 / RS485 RS485 RS485 RS485
Why Choose Puretronics LDG?

  • High Precision, Low Maintenance

    Thanks to its special lens and contactless operation, LDG eliminates mechanical wear, material dependency, and manual errors.

  • Plug and Play Integration

    Our gauge is compatible with common industrial protocols, making it easy to drop into your existing systems.

  • Independent of Material, Color, or Temperature

    LDG measures reliably across metal, plastic, and transparent materials—hot or cold, shiny or matte.

  • Real-Time Monitoring & Analysis

    Immediate digital outputs let you detect issues on the fly and correct them before they become costly defects.

Applications Across Industries

  • Wire & Cable Manufacturing

    Wire diameters must be precise to avoid problems with ovality, strength, and flexibility. LDG helps minimize raw material waste and ensures compliance during drawing, stranding, and insulation processes.

  • Refill & Pen Production

    Refills use expensive ink; pens often involve high-heat PPC molding. LDG handles both temperature-resistant, non-contact accuracy, lowering rejection rates and saving setup costs.

  • Medical Tubes

    Dosage precision is critical. LDG allows non-contact measurement of drug delivery tubes, ensuring zero contamination and perfect size control for tubes, rods, and casings.

  • Steel Pipes & Auto Tubes

    In automotive and structural applications, exact pipe sizing is essential. LDG prevents dimensional defects that can lead to assembly failures or structural compromise.

  • 3D Printing Filaments

    With 1.75mm and 3.0mm being industry standards, inconsistent filament diameters can clog nozzles and damage equipment. LDG maintains uniformity, helping you avoid machine downtime and material loss.

  • Pneumatic Systems

    Inconsistent diameters in air pipes cause pressure loss and system failure. LDG ensures tight tolerances and clean airflow through reliable sizing control.

  • MIG Welding Wires

    Fluctuating wire sizes ruin weld quality and increase raw material waste. LDG provides exact measurements, helping control costs of copper, aluminum, SS, or brass.

  • Fiber Optic Cables

    Even transparent materials like silica or plastic can be measured. LDG ensures no mirror leaks or faults in these critical data-transfer lines.

  • Hose Pipes

    From water delivery to fluid transport, PVC or metal hoses need to resist rupture. LDG minimizes burst risk by ensuring perfect outer diameters.

  • Automotive Components

    Engine parts like crankshafts and pistons require micron-level accuracy. LDG improves quality control for precision components that can’t afford defects.

  • Centerless Grinding Rods

    After grinding, rods need quick inspection. LDG offers real-time, post- grind validation, saving on rework and raw material.

  • Toy Manufacturing Tubes

    Whether hollow or solid, tubes in toys must meet strict specs. LDG’s material and shape independence is perfect for fast-moving, varied production.

  • Copper Strips

    Used for conductivity in circuits, dimensional accuracy directly affects performance. LDG keeps high-value copper usage efficient and controlled.

  • Flat Cables

    Ideal for semiconductors and robotics, flat cable uniformity ensures reliable data flow. LDG detects flaws in cable series instantly.

  • Square Rods

    Essential for civil and electronic structures, square rods must be free from bends and angles. LDG catches variances before they cause system failures.

Product Highlights

  • Measurement Range: 0.8 mm – 150 mm

  • Accuracy: ±0.1% of reading

  • Scan Velocity: Up to 210 m/s

  • Output Interfaces: RS232 / RS485

  • Operating Temp: Up to 50°C

  • Humidity Tolerance: 0–95% RH (non-condensing)

  • Material Independence: Works on metal, plastic, transparent, hot or cold materials

  • Mounting: Rugged aluminum casing for harsh environments

Who Uses Puretronics LDG?

Puretronics has supported precision manufacturing in automotive, medical, electronics, plastics, and industrial equipment sectors. Whether it's OEMs, component suppliers, or quality control labs, professionals trust LDG for accurate and reliable measurements.

Accessories Available

We also provide a range of accessories for seamless integration, including:

  • Height Adjustable Stand for stable setup

  • Custom software modules for data logging and analysis

  • Protective enclosures for harsh environments

  • Calibration tools to maintain optimal performance

Frequently Asked Questions (FAQs)
A laser diameter gauge is a contactless measuring instrument used to measure the outer diameter of wires, cables, tubes, rods, and other circular cross-sections. It provides high-precision measurements in real time, making it ideal for quality control in production environments.
The Puretronics Laser Diameter Gauge has options to measure diameters ranging from 0.8 mm to 150 mm with an accuracy of ±0.1% of the reading.
Yes. Puretronics LDG is independent of material, surface color, or reflectivity. It accurately measures transparent, shiny, matte, metallic, and non-metallic materials without adjustment.
Yes. The LDG is built with a durable aluminum case and can operate at temperatures up to 50°C and humidity levels up to 95% (non- condensing).
The device supports RS232 and RS485 interfaces for easy integration into existing industrial setups and control systems along with analogue and digital outputs basis on models.
Yes. The system uses laser-based optical technology that never touches the material, ensuring zero wear and tear and zero risk of product contamination or deformation.
Traditional tools are manual, slower, and often less accurate. The LDG offers real-time, high-speed, contactless measurements with digital outputs, making it ideal for high-volume production and stringent quality checks.
Yes. The LDG is designed for inline, real-time monitoring and control, helping to identify defects immediately and reduce waste and downtime.
Puretronics LDG is widely used in automotive, medical, electronics, plastics, cable and wire manufacturing, 3D printing, and toy production.
Yes. We offer technical support, installation guidance, and user training to ensure seamless setup and operation.
Stop Guessing. Start Measuring.

When quality control is this easy, why risk costly errors? Puretronics Laser Diameter Gauge gives you measurable advantages—literally.

Get in touch with us today.

Fill out the enquiry form below and one of our technical experts will get back to you within 24 hours.

Get a Quote
  Download PDF
Request A Call Back

© 2026 Puretronics | Powered by Inventif Web