Introduction

The 3X Handheld Laser Diameter Gauge, also known as the portable non-contact laser micrometer, is a precision testing device independently developed by QIPANG, functioning as a fine wire outer diameter tester and compact inline extrusion dimension monitor. Covering a measuring range of 0.05mm(0.002")–3mm(0.118") and a scanning rate of 1400 times per second, this ultra-fine cable diameter detector supports dual usage: portable spot checking and fixed inline installation. It can be matched with extruders, wire drawing machines, haul-off machines and complete automated production lines to feed real-time dimension data and automatically adjust equipment speed for dimensional control of ultra-fine wires and micro tubing during extrusion and wire drawing.

Overview

As a cost-effective portable laser diameter measuring instrument, the 3X single-axis laser diameter gauge adopts mature non-contact optical inspection technology and is specially developed for cylindrical products below 3mm(0.118"). It features fixed 0.001mm(0.000039") resolution and measuring accuracy of ±0.5μm±0.008%×Z to realize real-time, non-destructive dynamic dimension tracking for tiny workpieces. Certified by SGS, CE, ISO and TUV, this fine wire laser micrometer comes with dual-purpose design: the lightweight body is available for incoming material inspection and finished product sampling in laboratories; fitted with dedicated fixing brackets, it can be installed on extrusion and take-up equipment to realize closed-loop diameter adjustment via PLC connection. Its compact size avoids large-scale production line modification and serves as an economical alternative to expensive imported precision handheld gauges.

Key Features

Dual Working Modes: Handheld Portable & Fixed Inline Installation

The core advantage of the 3X fine wire outer diameter tester lies in dual-scenario application. Handheld mode requires no fixed wiring for free movement, applicable to incoming warehouse inspection, finished spool sampling and laboratory dimension verification. When fixed beside extruders, wire drawing machines and haul-off machines, it delivers full-process continuous inline measurement, eliminating extra procurement costs for separate handheld calipers and fixed online measuring equipment.

Custom Narrow Measuring Range from 0.05mm(0.002") to 3mm(0.118")

The figure “3” of this 3X portable laser diameter measuring instrument stands for the maximum measurable outer diameter of 3mm(0.118"), with the minimum measurable size down to 0.05mm(0.002"). Filling the blank of small-range precision measurement, it is tailor-made for enameled fine wires, medical capillary tubes, micro 3D printing filaments and other precision parts under 3mm(0.118").

Stable Micron-Level Measuring Accuracy

With precision of ±0.5μm±0.008%×Z (Z = nominal workpiece diameter) and constant 0.001mm(0.000039") resolution, the ultra-fine cable diameter detector captures tiny dimensional fluctuations of ultra-fine products under regular workshop conditions. Imported core optical components guarantee zero precision drift and stable performance after long-hour continuous operation.

Non-Contact Inspection to Prevent Scratches & Deformation

Based on laser optical measuring principle, the inline extrusion dimension monitor (3X laser diameter gauge) never touches measured materials, effectively preventing indentation, scratches and compression deformation on soft silicone micro tubes, thin enameled copper wires and annealed fine steel wires to cut waste caused by traditional contact measuring tools.

Standard Industrial Communication & Strong Environmental Adaptability

Equipped with standard RS485 Modbus RTU interface and optional Modbus TCP / Profinet ports, the portable non-contact laser micrometer seamlessly connects PLC and automated production lines. It outputs linkage signals to adjust the speed of extruders and haul-off machines once dimensions go beyond tolerance limits. Rated power consumption ≤12W, the unit runs stably from -10℃ to 40℃ to support 24-hour uninterrupted mass production.

Technical Parameters Non-Contact Diameter Gauge

Product Operate Guide

3X 70X 120X Laser Diameter Gauge Technical parameters.pdf

High speed Laser Diameter Gauge Manual.pdf

Product Video

Industrial Applications

1. Ultra-Fine Enameled & Electronic Wire Industry

Application: The 3X Handheld Laser Diameter Gauge is used for incoming sampling inspection in warehouses in handheld mode, and fixed behind wire drawing dies for inline dimension control of miniature automotive wiring harnesses, bonding wires and micro electronic conductors.

Applicable Materials: Bare copper wire, tinned copper filament, copper-clad aluminum fine wire, nickel-alloy ultra-fine wire

2. Micro Extrusion & 3D Printing Filament Industry

Application: This portable laser diameter measuring instrument supports hand-held spot inspection for medical micro catheters, edible thin straws and silicone hoses, as well as continuous real-time dimension monitoring on micro extrusion production lines.

Applicable Materials: PE, PVC, PP, PLA, ABS, medical silicone, TPU micro extruded tubing & filaments

3. Precision Fine Metal Wire Drawing Industry

Application: As a professional fine wire outer diameter tester, it tracks dimensional deviation caused by die wear during cold drawing and conducts fixed-point inspection on finished coiled metal wires in handheld mode.

Applicable Materials: Galvanized steel wire, 304/316 stainless steel filament, low-carbon ultra-fine steel wire, precision alloy fine wire

4. Medical Precision Tubing Industry

Application: The ultra-fine cable diameter detector completes laboratory sampling for semi-finished implant catheters and full-process inline dimension control during precision medical tube extrusion.

Applicable Materials: Medical PU, PTFE, food-grade PP, biocompatible silicone capillary

5. Optical Fiber Coating & Mini Precision Hardware Industry

Application: The inline extrusion dimension monitor monitors extrusion of optical fiber secondary coating, and handheld measurement of miniature locating pins and small solid shafts.

Applicable Materials: Quartz bare fiber, resin coating, solid copper pin, carbon steel miniature shaft

6. Synthetic Textile Filament Industry

Application: Batch handheld inspection of synthetic fine filaments and fixed installation on chemical fiber extrusion equipment for inline outer diameter management.

Applicable Materials: Polyester filament, nylon fine yarn, PP monofilament

Why Choose QIPANG

Mature R&D Focused on Precision Micro Measurement

QIPANG devotes itself to R&D and manufacturing of laser measuring equipment. The 3X portable non-contact laser micrometer is optimized targeting measurement pain points of ultra-fine tiny parts and fits both handheld and fixed inline application scenarios.

High Cost Performance & Fast ROI

The measuring precision of the 3X Handheld Laser Diameter Gauge matches high-end imported mini laser measuring equipment at more competitive factory prices. Its dual-purpose design saves separate purchase fees for handheld calipers and fixed online gauges, cutting manual sampling cost and defective rate to shorten investment payback period.

Ergonomic Design for Easy Field Installation

Ergonomic lightweight body avoids fatigue during long-time handheld testing; the compact unit can be quickly mounted on existing extrusion and take-up equipment without production halt or massive production line reconstruction, ideal for flexible small-batch production.

Full-Scope After-Sales & One-Stop Supporting Solution

QIPANG’s global aftersales team provides 24/7 online technical consultation, on-site installation commissioning and regular maintenance. Rapid breakdown response reduces unexpected downtime. Apart from the fine wire outer diameter tester, we supply matching spark testers, wire length counters and take-up machines to deliver one-stop full-line measurement & control solution.

FAQ

Q1: Can the 3X portable laser diameter measuring instrument switch freely between handheld and fixed mounting modes?

A1: Yes, with customized fixed bracket accessories, the 3X Handheld Laser Diameter Gauge switches between offline sampling and online continuous measurement quickly without any structural modification.

Q2: Can this non-contact laser micrometer test transparent micro medical tubing?

A2: Optimized light source enables stable measurement of transparent PTFE and PU capillary widely used in medical industry.

Q3: What is the minimum measurable size of this ultra-fine cable diameter detector?

A3: The minimum measurable outer diameter reaches 0.05mm(0.002") to satisfy measurement of ultra-thin bonding wire and micro monofilament below 0.1mm(0.0039").

Q4: Can measured dimension data be exported to factory MES system via optional communication ports?

A4: Optional Modbus TCP and Profinet ports support seamless data upload to upper computer and MES production management system for centralized quality data statistics and traceability.

Q5: Does the inline extrusion dimension monitor have an over-tolerance alarm output function?

A5: Yes, the equipment can send linkage alarm signal and trigger automatic speed adjustment of matched extruders/haul-off machines once measured value exceeds preset upper/lower tolerance limit.