| Display Size and Resolution | Common industrial panel PC display sizes range from 7 to 21.5 inches. Typical resolutions include 1024 × 600, 1280 × 800, 1920 × 1080, and higher. | Select a screen size that matches the operator distance and application interface. Full HD is generally preferable for 15.6-inch and larger displays. | Review the official datasheet, display test images, viewing-angle data, brightness data, and sample unit. |
| Touchscreen Technology | Projected capacitive touchscreens are common for multi-touch operation. Resistive touchscreens remain suitable for glove use, stylus input, and environments with dust or liquids. | Choose projected capacitive touch for modern HMI interfaces; choose 5-wire resistive touch where gloves, tools, or harsh operating conditions are expected. | Test touch accuracy, response time, glove operation, stylus operation, and operation with surface contamination. |
| Brightness and Readability | Standard indoor industrial displays commonly provide approximately 300–500 cd/m². Sunlight-readable configurations may use 800 cd/m² or more. | Use at least 350 cd/m² for indoor factory floors and consider 800 cd/m² or higher for bright production areas or semi-outdoor installations. | Request a brightness test report and inspect readability under the intended lighting conditions. |
| Ingress Protection | Front-panel ratings commonly range from IP65 to IP69K depending on enclosure design, sealing, and connector protection. | IP65 is a practical minimum for many factory HMIs. Select IP66, IP67, or IP69K when washdown, water jets, or heavy contamination is expected. | Check the complete enclosure rating, not only the front bezel. Request test documentation based on IEC 60529 or equivalent procedures. |
| Operating Temperature | Industrial panel PCs commonly specify operating ranges such as 0°C to 50°C, -10°C to 60°C, or -20°C to 70°C. Fanless systems are widely used to reduce dust-related failures. | For general factory use, target at least -10°C to 60°C. For cold storage, outdoor cabinets, or high-temperature areas, select an extended-temperature configuration. | Review thermal test conditions, CPU thermal limits, storage temperature, and actual performance under continuous load. |
| Processor and Performance | Available configurations typically include low-power embedded processors for HMI and data collection, as well as higher-performance processors for machine vision, analytics, and edge computing. | Match the processor to the software workload. Require at least 20–30% performance headroom for future software updates and peak processing loads. | Run application-specific tests covering boot time, multitasking, graphics, communications, and continuous full-load operation. |
| Memory and Storage | Common configurations include 4–16 GB of RAM and 64–512 GB of solid-state storage. Industrial-grade SSDs generally offer stronger endurance than consumer storage. | For standard HMI applications, 8 GB RAM and 128 GB industrial SSD storage are practical starting points. Use higher capacity for databases, local logging, or machine vision. | Confirm memory type, storage endurance, operating temperature, power-loss protection, and replacement availability. |
| Industrial Interfaces | Typical interfaces include Gigabit Ethernet, USB 2.0/3.0, RS-232, RS-485, isolated digital I/O, HDMI or DisplayPort, and optional CAN or GPIO. | Require the exact interface quantity and electrical characteristics needed by the project. Isolated serial ports and industrial Ethernet are preferable in electrically noisy environments. | Check the interface map, pin definitions, isolation specifications, protocol compatibility, and connector durability. |
| Power Input and Protection | Many industrial panel PCs support 9–36 VDC or 12–24 VDC input. Protection features may include reverse-polarity, over-voltage, over-current, and surge protection. | For vehicle, automation, and control-panel applications, select a wide-voltage input with documented protection and a suitable power margin. | Request electrical test results and verify startup performance, voltage fluctuation tolerance, surge protection, and grounding requirements. |
| Reliability and Validation | Relevant tests may include temperature cycling, vibration, shock, electromagnetic compatibility, electrostatic discharge, and long-duration burn-in. | Prefer suppliers that provide traceable test procedures, serial-number records, component control, and documented failure-analysis processes. | Request sample test reports, quality-control flowcharts, corrective-action records, and a written acceptance-test plan. |
| Certifications and Compliance | Depending on the destination market, applicable requirements may include CE, FCC, RoHS, REACH, UKCA, UL-related requirements, or industry-specific approvals. | Certifications must match the final product configuration, destination country, power adapter, wireless modules, and enclosure design. | Verify certificate numbers, test reports, issuing laboratories, product model numbers, and validity of the supplied configuration. |
| Customization Capability | Common customization options include screen size, logo-free enclosure, mounting method, I/O layout, BIOS settings, operating system image, memory, storage, and cable design. | Choose a supplier capable of documenting engineering changes and maintaining the same configuration throughout the production lifecycle. | Evaluate drawings, engineering-change procedures, sample approval records, firmware version control, and prototype quality. |
| Production and Supply Capacity | Industrial PC lead times vary according to component availability, customization, certification, and order quantity. Standard configurations generally have shorter lead times than customized models. | Require a written schedule covering prototype delivery, pilot production, mass production, replenishment, and contingency planning for constrained components. | Review production capacity, material planning, quality checkpoints, historical delivery performance, and component substitution rules. |
| Warranty and Lifecycle Support | Industrial computing products are commonly offered with one or more years of warranty coverage, with longer support periods available for selected projects. | Prefer a clearly defined warranty of at least 12 months, repair or replacement procedures, spare-parts availability, and a planned product lifecycle of several years. | Review warranty exclusions, response times, repair locations, spare-parts pricing, software support, and end-of-life notification procedures. |
| Total Cost of Ownership | Purchase price is only one cost element. Installation, mounting accessories, power supply, software licensing, maintenance, downtime, replacement parts, and logistics also affect total cost. | Compare the five-year total cost rather than unit price alone. A slightly higher initial price may reduce field failures and maintenance expenses. | Prepare a cost model covering hardware, customization, shipping, duties, installation, warranty service, spare units, and expected maintenance. |
| Supplier Evaluation Score | Recommended weighting
Product suitability: 25%; quality and reliability: 20%; technical support: 15%; delivery capability: 15%; compliance: 10%; total cost: 15%. | Shortlist suppliers achieving at least 75/100 overall, with no critical failure in safety, compliance, cybersecurity, interface compatibility, or environmental requirements. | Use a documented scoring sheet, compare identical specifications, conduct sample testing, and obtain written answers to all technical and commercial requirements. |
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