Designed to tackle challenging material-evaluation jobs, GP-L400-324K 4K Ultra HD Metallurgical Microscope for Material Testing is a proven Material testing metallographic microscope with 4K Ultra HD. High-quality infinity-corrected optical assemblies deliver steady imaging performance, while its modular build enables convenient expansion of bright-field, polarized-light and other advanced observation features. The solid heavy-weight frame effectively counters vibration disturbances, maintaining sharp, non-drifted images at high magnification. Users can re-configure individual modules on-site instead of replacing the whole unit to match varied testing requirements. Combined with straightforward operation and spacious working area, it ensures stable output for demanding industrial-inspection and metallographic-analysis applications.
This 4K Ultra HD Metallurgical Microscope for Material Testing is suitable for microscopic observation of metallographic microstructures and surface morphology. It serves as an ideal research tool for metallurgy, mineralogy and precision-engineering disciplines.
4K camera integrated within trinocular housing for simultaneous viewing via eyepieces and external monitor. Dual-port output via HDMI and Gigabit LAN transmits ultra-high-definition micro-images in real-time.
Optical magnification ranges from 50× to 500×; maximum digital magnification reaches 2000×. Multi-layer precision lens assembly produces sharp images for fine micro-detail inspection.
Focus knobs matched with reinforced lens barrel enable smooth focusing and minimize image shaking.
Balanced heavy-metal base ensures instrument stability without wobble during long-duration sample observation.
Minimalist white-and-blue trinocular styling with premium texture, well-suited for university laboratories and industrial QC workstations.
Ideal for industrial-component inspection, metal metallographic analysis, material observation, academic research and product-quality evaluation.
4K (3840*2160) photo & video capture. Dual measurement modes: built-in on-monitor measurement and PC-software measurement. Dual-path storage via U-disk and PC-software. Secondary-development interface is available over LAN port.
Binocular viewing plus synchronous electronic observation: Eyepiece view and monitor display work synchronously. Ordinary metallurgical microscopes only support eyepiece observation; extra camera accessories are required for screen output.
4K high-definition imaging: 3840×2160 4K resolution restores fine details of micro-grains and coatings. Conventional metallurgical cameras mostly deliver 1080P resolution with limited resolving power.
Dual-output interfaces: HDMI + Gigabit-LAN port. Traditional metallurgical equipment offers limited interfaces without network port for system integration.
Dual-measurement modes: Offline built-in measurement on-monitor plus PC-software measurement. Ordinary metallurgical microscopes only support PC-side software measurement.
Dual-storage modes: Offline U-disk storage and PC-software storage. Data saving is available with or without a connected computer. Conventional models require PC connection for image saving.
Secondary-development supported: LAN-port interface enables system integration for automation-project deployment. General metallurgical microscopes do not support secondary-development capability.
Dedicated metallurgical optical path: Optimized for metal-grain, coating and metallographic-material analysis. Ordinary digital microscopes lack this specialized optical path and cannot visualize metallographic structures.
Mechanics: Full-metal construction for high rigidity and vibration resistance. Precision coarse-fine focusing without backlash. Manual XY stage with low wear and minimal clearance. Trinocular optical path maintains optical co-alignment during magnification switching.
Optics: Infinity-corrected plan-achromatic metallurgical objectives with anti-fog hard coating. Separated coaxial LED illumination.
Imaging & Measurement: 4K industrial camera with dual-output HDMI + Gigabit-LAN. Anti-interference performance for industrial environments. Supports both embedded on-monitor measurement and PC-software measurement. Pre-calibrated at factory; parameters persist after power-off; no daily calibration required. Dual-path storage via U-disk and PC-software. Image-stitching functions run exclusively on PC-software. Secondary-development is supported over LAN port.
Operating Environment: Working temperature 10-35℃, relative humidity 30-75%RH. Stable under regular factory electromagnetic-environment. Avoid heavy vibration, corrosive gas and heavy dust.
Quality & Maintenance: Full-item factory inspection. Do not disassemble optical modules. Regular dust-proof cleaning will extend service life.
Semiconductor & Microelectronics:
Silicon wafers, lithography slices, IC chips, PCBs, FPC flexible circuits.
Inspection targets: micro chip circuits, coating defects, wafer flaws, cold-soldering joints, circuit scratches, pin
deformation.
Metallographic Metal Specimens:
Metal sections, steel, alloys, drill bits, milling cutters, precision-stamped hardware.
Inspection targets: metallographic-grain structures, heat-treatment evaluation, micro-cracks, edge chipping, burrs,
wear traces and material impurities.
Laboratory Powder & Fiber Samples:
Metal powder, chemical powder, carbon fiber, textile fiber, thin-film materials.
Observe particle morphology, fiber texture, film delamination and micro-scale material structures.
Optoelectronic & Precision Plastic Components:
LED chips, optical lenses, injection-molded parts, sealing adhesives.
Detect micro-pores, surface stains, rough edges, delamination, bubbles and tiny cosmetic defects.
High-Precision Miniature Components:
Connectors, terminals, micro-springs, micro-stamped work-pieces.
4K-pixel-level accurate measurement for gaps, hole diameters and pitch dimensions.
Laboratory & Industrial Quality-Control Workflow:
Material-research experiments, incoming-goods and finished-product sampling inspection. Photo/video archiving and
QC-report export.
Optical magnification: 50-500×; electronic magnification: 200-2000×. This magnification range covers metallographic grain structures, electroplated coatings and PCB surface conditions. Well-suited for factory incoming-goods inspection and daily analysis within small-to-medium-size material laboratories.
Trinocular optical-path enables synchronous viewing from binocular eyepieces and HDMI-display. Inspectors or instructors can review sample defects together. Perfect for production-line double-checking and basic university-laboratory training activities.
Dual-output HDMI+Gigabit-LAN design. Operate standalone on monitor without PC, or connect to computer over LAN for extended software-based functions. 4K photos and videos can be saved onto compliant U-disk. Plug-and-play installation fits production-QC stations and compact laboratories.
Upgraded high-rigidity stand together with manual coarse-fine focusing. Smooth focusing performance plus anti-vibration capability eliminate image shifting. Durable for high-volume daily-sample testing and long-time static-sample observation.
Standard metallurgical stage plus full set of objective lenses support steel specimens, hardware coatings, electronic components, mineral slices and conductive thin-films. Widely deployed in electroplating plants, machinery workshops and university basic-material-research labs.
Neutral-packing shipment is available upon request.
| Item | Description |
| Product | GP-L400-324K Material testing metallographic microscope with 4K Ultra HD |
| Category | Industrial Research-Grade Trinocular 4K Metallurgical Inspection & Measuring Microscope |
| Core Technologies | Trinocular synchronous-viewing optical system, professional metallurgical objective-lens group, 4K ultra-HD CMOS imaging, dual-measurement system (on-monitor built-in measurement + PC-software measurement), HDMI+Gigabit-LAN dual-channel signal transmission, dual-path storage technology, open framework supporting secondary-development via LAN |
| Key Specifications | Visual magnification: 50/100/200/500×; Electronic magnification: 200/400/800/2000×; Dual-output interfaces: HDMI + Gigabit-LAN port; 4K capture resolution: 3840×2160; Manual focusing (software-assisted auto-focus algorithm on-monitor); Dual-measurement modes: built-in precision measurement + dedicated PC-software measurement; Dual-storage modes: U-disk local storage + PC-software storage; Monitor terminal supports dimensional measurement, HD image preview, photo & file saving; PC terminal supports dimensional measurement and image archiving; Whole unit supports secondary-development docking over LAN port. |
| Typical Applications | Semiconductor-chip-circuit inspection, metal metallographic-structure analysis, alloy-grain observation, coating-thickness testing, PCB cross-section analysis, precision-electronic-component failure analysis, university-material-laboratory research, new-energy & electronic-material quality-control |
| Manufacturer | Kunshan Gaopin Precision Instrument Co., Ltd. |
| Manufacturer Location | Kunshan, Jiangsu, China (adjacent to Shanghai) |
| Model | GP-L400-324K |
| Resolution | 3840×2160 |
| Real Effective Pixels | 8.3 Megapixels |
| Focusing Method | Manual focus |
| Optical Format | 1/1.7" |
| Pixel Size | 1.85 μm × 1.85 μm |
| output method | HDMI + Gigabit LAN Ethernet Port |
| Detailed functional introductions corresponding to each output interface |
① HDMI connects to 4K-compatible displays. Embedded professional image-processing firmware supports
photo-recording, video-recording, dimensional measurement, image playback and image comparison, operated
by
mouse in real-time. ② Gigabit LAN port connects to routers, switches or computers for network image transmission. Computers within the same network segment can receive real-time video and trigger capture via matching software. |
| Frame Rate |
HDMI: 60fps @3840×2160 Gigabit LAN: 20fps @1920×1080 |
| Depth-of-Field Synthesis | Supported only on PC-software side |
| Image Stitching | Supported only on PC-software side |
| Measurement Method | Built-in on-monitor measurement system + PC-software measurement |
| Measurement Accuracy | 0.001 mm |
| Measurement Units | mm / μm / mil / inch (4 switchable units) |
| Measurement Tools | Length, angle, radian, circle, polygon, polyline, center-to-center distance, rectangle, annotation adding, automatic edge detection, scale bar and more |
| Storage Method | U-disk storage + PC-software storage |
| Display Language | Simplified Chinese / English (switchable) |
| Processor | ARM Cortex-A17 Quad-Core @ Max 1.4 GHz main-control processor |
| Operating System | Independently-developed measurement firmware based on Linux 3.1 kernel |
| Image Naming | Automatic or manual naming available |
| Viewing Head | 30°-inclined hinge-type trinocular head with 5:5 beam splitter; inter-pupillary adjustment range: 54 mm-75 mm |
| Observation Modes | Bright-field / oblique illumination / transmitted illumination / simple polarization |
| Illumination System | ★ Transmitted lighting: Single high-power 3 W white-light LED lamp |
| Stand |
① Dual-purpose transmitted-reflected rack; low-hand-position coaxial coarse-fine focusing mechanism.
Coarse-adjustment stroke: 23 mm; fine-adjustment accuracy: 0.002 mm. Equipped with elastic anti-slip
device
for stage and LED lighting. ② Bright-field reflector with variable aperture stop, field stop and color-filter switching unit. ③ Blue filter and frosted glass included for reflected-light optical path. |
| Mechanical Stage | Double-layer mechanical moving stage; low-hand-position coaxial X-Y adjustment. Stage dimension: 145 mm × 132 mm; moving travel: 76 mm × 50 mm. Glass specimen-carrier plate for both transmitted & reflected observation. |
| Light Source | Reflected-light path: single high-power 5 W white-light LED; Transmitted-light path: single high-power 3 W white-light LED |
| Simple Polarization Function | Pre-installed slots for polarizer, analyzer and color filters. Simple polarized-light observation achievable after mounting polarizing accessories. |
| Electronic Interface | CTV0.5X fixed-focus camera interface |
| Eyepieces | Two WF10X/20 mm high-eye-point plan-field eyepieces; individual diopter adjustment ±5 diopters |
| Nosepiece | Mingchang four-hole objective nosepiece |
| Metallurgical Objectives |
★ Infinity long-working-distance plan-achromatic metallurgical objectives ① 5X NA0.12, Working Distance: 21.5 mm ×1pc ② 10X NA0.25, Working Distance: 16 mm ×1pc ③ 20X NA0.40, Working Distance: 9.3 mm ×1pc ④ 50X NA0.55, Working Distance: 6.3 mm ×1pc |
| Optical Magnification | 50X, 100X, 200X, 500X (four-level switchable) |
| Electronic Magnification | Approx. 200X, 400X, 800X, 2000X (four-level switchable). Optional upgrade range: 400-4000X. |
GAOPIN microscopes are used by leading enterprises, research institutes, and universities. Our collaborative relationships include:
Technical Institute of Physics and Chemistry, CAS – Microscopic research on low-temperature & special functional materials
NIO Shanghai – Precision inspection for new-energy auto parts & wiring harnesses
Lens Technology Co., Ltd. – Micro-flaw detection for glass cover plates & phone protective panels
Jiangsu Bigao Electromechanical Equipment Co., Ltd. – Dimensional & micro-flaw detection for precision-machined parts
Shanghai Institute of Ceramics, CAS – Micro-analysis of inorganic ceramics & new-energy materials
Tianjin University of Commerce – Material-laboratory teaching, micro-imaging & experimental-data archiving
A1: Dual-output via HDMI and Gigabit-LAN port. It can work standalone paired with a monitor, or connect to a computer over LAN port for collaborative detection.
A2: It supports 4K ultra-HD photo and video recording. Files can be saved to FAT32-formatted U-disk within 32 GB capacity. Built-in on-screen measurement supports dimension marking, data archiving and report export.
A3: Check power-supply and power adapter; fasten the HDMI cable and select the correct signal source on monitor. Reboot the microscope to resolve black-screen, missing-image or screen-flickering faults.
A4: Mechanical focusing is manual only; software-assisted auto-focus algorithm is available on-monitor for quick image adjustment. Place sample flat; regularly clean lens surfaces to remove dust, fingerprints and stains for sharp imaging.
A5: This device supports PC connection over Gigabit-LAN port for imaging, measurement and data export. Install official software, keep devices within same network segment and disable network-interception programs for stable connection.
A6: Only FAT32-formatted U-disks ≤32 GB are supported. NTFS and exFAT formats are incompatible. Re-insert, re-format or replace with a compliant U-disk.
A7: Bilingual UI is provided for global-usage scenarios. Stable performance makes it fit for routine industrial-shop-floor and laboratory-inspection work.
Kunshan Gaopin Precision Instrument Co., Ltd., founded in 2011 with its founder accumulating industry expertise dating back to 2005, is a tech-focused enterprise specialized in the design, R&D, sales and after-sales service of industrial microscopes. Boasting a core engineering team with more than ten years of professional know-how, the company guarantees proven technologies and consistent product reliability. GAOPIN offers more than one hundred optical product models and serves customers across the globe, dedicating itself to supplying tailor-made, high-cost-performance microscopy solutions. We offer prompt worldwide technical support covering online conferences, video-assisted operation guidance and remote training sessions. Our manufacturing base is located in Kunshan, Jiangsu Province, in close proximity to Shanghai. Both on-site factory inspections and virtual plant tours are available for clients. Feel free to get in touch with us for sample test images shot by this Material testing metallographic microscope with 4K Ultra HD, so you can evaluate its imaging performance directly.
Address
Building 2, Shuanglian International Business Center, Huaqiao Town, Kunshan City, China
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