Used Industrial Display Recycling FAQ —Top 10 Questions
Q1: Can old CRT displays be recycled?
Yes. CRT displays contain significant quantities of recyclable materials including high-lead glass (the funnel glass contains 20-30% lead oxide by weight), copper from the yoke and deflection coils, steel from the frame and shielding, and rare earth phosphors from the screen face. A typical 14-inch industrial CRT contains approximately 1.5-2 kg of copper and 8-12 kg of leaded glass.
However, CRTs are classified as hazardous waste in most jurisdictions because the lead can leach into groundwater if sent to landfill. The phosphor coating on the screen face contains heavy metals including cadmium and yttrium. Special handling is required during disassembly: the CRT neck must be scored and the vacuum released in a controlled environment to prevent implosion, and the leaded glass must be separated from unleaded glass for proper smelting. Always use a certified e-waste recycler that holds a hazardous waste processing permit and has dedicated CRT processing equipment (CRT cutting stations, lead glass separation lines).
In China, CRTs fall under the "National Hazardous Waste Inventory" (code HW49) and must be processed at facilities with a hazardous waste operating license. Many recyclers will accept CRTs free of charge because the recovered copper and steel offset processing costs, though older, rarer industrial CRTs may have additional value to collectors or refurbishers.
Q2: What is a used FANUC CRT display worth?
The value depends on condition, model, and market demand. FANUC CRTs (especially older 9-inch and 14-inch units used on Series 0, 10, 11, 15, and 16 CNC controllers) have active secondary markets because many shops prefer to keep original equipment running rather than retrofit. Below is a typical valuation guide:
| Condition | Estimated Value (9" FANUC CRT) | Estimated Value (14" FANUC CRT) |
|---|---|---|
| Working, excellent display quality, original packaging | CNY 200-500 | CNY 400-800 |
| Working, good display quality with minor burn-in | CNY 100-300 | CNY 200-500 |
| Working, degraded display (dim, geometry issues) | CNY 50-150 | CNY 100-250 |
| Non-functional (no power, no image) | CNY 20-80 | CNY 50-150 |
| CRT tube only (yoke intact, no enclosure) | CNY 10-30 | CNY 20-60 |
| Complete unit with original FANUC bezel and PCB | CNY 300-600 | CNY 500-1200 |
Valuation Reference Table —Factors Affecting Used Industrial Display Value
The resale or trade-in value of a used industrial display depends on several interconnected factors. Use this table to estimate the value of your specific unit:
| Factor | High Value | Medium Value | Low Value |
|---|---|---|---|
| Brand / Model | FANUC, Mitsubishi, Siemens (high demand for spares) | Mazak, Okuma, Haas (moderate demand) | Generic OEM, obscure brands (limited buyer pool) |
| Screen Size | 14" or larger (more versatile replacement) | 9"-10" (common industrial size) | Under 7" (niche applications only) |
| Display Type | Color CRT or high-resolution LCD | Monochrome CRT (amber/green) | Severely burned-in or delaminated screens |
| Functionality | Fully working with clear image | Works with minor issues (dim, geometry off) | Dead / no power (parts only) |
| Completeness | Original enclosure, cables, mounting brackets included | Unit only, no cables or brackets | Bare CRT tube or LCD panel only |
| Age | Manufactured 2005-2015 (still compatible with modern controllers) | Manufactured 1995-2005 | Pre-1995 (capacitor aging, rare parts) |
| Documentation | With original manual and wiring diagram | Model number sticker legible | No identifying information |
| Environmental History | Clean, climate-controlled workshop | Factory floor with dust but no damage | Oil/coolant exposure, physical damage, rust |
Note: Values above are estimates based on the Chinese secondary industrial display market as of 2025-2026. Actual prices vary by buyer willingness, shipping distance, and regional demand. For a binding trade-in quote, contact Kongto Technology directly.
Q3: Is it legal to dispose of CRT displays in regular waste?
No. In virtually all jurisdictions, CRT displays are classified as hazardous e-waste and cannot be legally disposed of in regular municipal solid waste streams. In China specifically, the "Administrative Measures for the Prevention and Control of Environmental Pollution by Electronic Waste" (implemented under the Solid Waste Law) classifies CRTs as hazardous waste under code HW49 (waste cathode ray tubes). Non-compliance can result in administrative fines ranging from CNY 10,000 to CNY 100,000 for businesses, and in severe cases, environmental remediation costs that can far exceed the fine.
Similar restrictions apply globally:
- European Union: Covered under the WEEE Directive (2012/19/EU) —CRTs must be collected separately and processed through authorized treatment facilities. The CRT glass must be sent to dedicated lead-glass smelters; landfilling CRTs has been banned since 2006.
- United States: The EPA's CRT Rule (40 CFR Part 260) requires CRTs to be sent for recycling or refurbishment. Many states (California, Massachusetts, Minnesota, etc.) have additional state-level bans on CRT landfilling with penalties of up to USD 10,000 per violation.
- Japan: The Home Appliance Recycling Law covers CRT displays; manufacturers and retailers are obligated to take back and recycle used units.
The safest course of action is always to contract a certified e-waste recycler. Many offer free drop-off for CRT displays because the recovered materials (copper, steel, leaded glass) have positive scrap value. For industrial CRT displays from CNC machinery, specialized recyclers with experience in industrial electronics are preferred.
Q4: How should I prepare displays for recycling?
- Remove all cables and accessories: Power cables, signal cables, and any attached connectors may be reusable or have separate recycling value. VGA/DVI cables contain copper and can be recycled independently. Keep mounting brackets and screws —these are often reusable or have scrap metal value.
- Do NOT break the CRT glass: CRT tubes are under vacuum —the atmospheric pressure exerts approximately 1 ton of force on the face of a 14-inch tube. Breaking the glass causes violent implosion, sending glass shards at high velocity. Additionally, the funnel glass contains 20-30% lead oxide; broken glass fragments contaminated with lead are far more difficult to process and pose environmental hazards.
- Discharge the CRT anode cap: The CRT anode (the suction cup connector on the side of the tube) can hold a charge of 15-30 kV even after the display has been unplugged for weeks. Only qualified personnel should discharge this using a high-voltage probe and grounding strap. If you are not trained in CRT safety, skip this step and let the recycler handle it.
- Protect the screen face: Place the display in its original packaging or wrap the screen face in bubble wrap or foam. Industrial displays often have anti-glare coatings or touchscreens that scratch easily. Protect any touch panel overlay separately.
- Label the package clearly: Mark the package as "Used CRT Display —Handle with Care" and include the model number, approximate weight, and whether the unit is known to be functional. This helps the recycler triage and may increase the trade-in credit you receive.
- For LCD displays: LCD panels contain mercury in the backlight (cold cathode fluorescent lamps / CCFLs) and should also be handled separately. Newer LED-backlit LCDs are less hazardous but still contain circuit boards and plastic housings that require proper recycling. Remove the backlight assembly if you are comfortable doing so —the CCFL tubes should be sent to a mercury-recovery facility.
Q5: Can LCD displays from CNC machines be reused?
Yes. LCD displays removed from CNC machines often have significant remaining service life —typically 30,000 to 50,000 hours of backlight life, with many units having been in operation for only 5,000-15,000 hours before the machine was decommissioned. If the LCD panel is functional, it can be:
- Reinstalled in another machine of the same model (the most straightforward and lowest-cost option —simply swap the display and verify signal compatibility).
- Used as a replacement for a machine with a failed CRT by pairing the LCD with a compatible video converter (e.g., a CGA/EGA-to-VGA or CRT-to-LVDs converter). This is increasingly popular as shops seek to replace failing CRTs while keeping the CNC controller operational.
- Refurbished with a new backlight, inverter board, or power supply and resold. Common failure modes in industrial LCDs are backlight inverter failure (usually fixable with a USD 15-30 replacement board) and electrolytic capacitor aging in the power supply (fixable for under USD 5 in parts). Actual LCD panel failure is relatively rare.
- Repurposed for non-CNC applications such as security monitors, test equipment displays, or digital signage if the input signal format (typically VGA or DVI on industrial LCDs) matches the application.
Before reusing an LCD display, always test for these common issues: dead or stuck pixels (check with solid-color screens), backlight uniformity (look for dark corners —a sign of aging CCFL tubes), and input signal compatibility (some older industrial LCDs use non-standard pinouts or require 5V instead of 3.3V logic). Kongto Technology offers compatibility testing and adapter solutions for most major CNC brands.
Q6: What testing should be done before recycling a display?
Proper testing before recycling ensures you maximize the value of functional units and avoids sending repairable displays to the scrap heap. Below is a comprehensive testing checklist:
Testing Checklist Table —What to Test, How, and Expected Results
| Test Item | Test Method | Expected Result (Pass) | Expected Result (Fail —Reduce Value) |
|---|---|---|---|
| Power-On | Connect AC power, observe power LED | Power LED illuminates immediately or within 2 seconds; no unusual sounds (buzzing, crackling) | No LED; LED blinks erratically; audible arcing or high-pitched whine |
| Image Display | Connect to known-good signal source (PC, signal generator, or CNC controller) | Clear, stable image appears within 3 seconds; no rolling, flickering, or sync loss | No image; image rolls or flickers; horizontal/vertical sync failure; raster but no signal |
| Geometry & Focus | Display a crosshatch or grid pattern; examine edges and corners | Straight lines throughout; no pincushion/barrel distortion; corners sharp and square | Wavy edges, tilted image, poor corner focus (CRT aging), non-linear scaling (LCD) |
| Backlight (LCD) | View in a dimly lit room; check brightness uniformity across the full screen | Uniform brightness, no dark corners or patches; no visible flicker at 50/60 Hz | Dim or uneven backlight; yellowing at edges; flickering; one or more CCFL tubes out |
| Dead / Stuck Pixels (LCD) | Display solid red, green, blue, white, and black screens full-screen | No dead (permanently black) or stuck (permanently bright) pixels; or fewer than 3 sub-pixel defects | Cluster of dead/stuck pixels (more than 5); stuck pixels visible on dark backgrounds |
| Color & Brightness (CRT) | Display a white screen; adjust brightness and contrast controls | White is neutral (not tinted); brightness increases smoothly with control adjustment; no retrace lines | Color cast (red/purple/green tint) that persists after adjustment; retrace lines visible; blooming at high brightness |
| Touch Screen (if equipped) | Connect touch controller; run calibration utility or touch-responsive app | Cursor follows touch accurately across full screen; no dead zones; calibration holds | Dead zones on touch surface; cursor drifts; touch registers in wrong location; no response |
| Button / OSD Menu | Press each front-panel button individually; verify OSD menu navigation | Each button produces correct on-screen response; OSD menus draw correctly; adjustments save and restore | One or more buttons non-responsive; OSD menu corrupt or unreadable; settings not saved |
| Signal Input Ports | Test each input (VGA, DVI, HDMI, BNC, 5-pin) with a known-good source and cable | All ports produce stable image; no intermittent signal loss when cable is gently wiggled | Loose or damaged connector; intermittent signal; no detection on one or more ports |
| Audio Output (if equipped) | Connect audio source; adjust volume; check speaker or line-out | Clear audio at moderate volume; no distortion; volume control works | No audio; distorted audio even at low volume; speaker rattles; audio cuts in/out |
| Burn-in / Image Retention | Display a checkerboard or alternating pattern for 10 minutes, then switch to solid gray | No ghost image of previous pattern visible after 10 seconds of gray screen | Ghost image persists more than 30 seconds (CRT phosphor burn); visible in normal operation (LCD image retention) |
Tip: Run tests in order from most basic (power-on) to most detailed (image retention). If the display fails the power-on test, skip directly to signal input and power supply inspection —the problem is often a blown fuse, failed capacitor, or broken solder joint rather than a dead display.
Q7: Are there environmental certifications I should look for in a recycler?
Yes. When selecting an e-waste recycler for industrial displays, verify that they hold the following certifications and licenses:
- Hazardous Waste Operating License (鍗遍櫓搴熺墿缁忚惀璁稿彲璇? —Required in China for any facility processing CRT displays, leaded glass, or mercury-containing components. This license is issued by provincial environmental protection bureaus and must be renewed annually. Ask to see the current license and verify its scope covers CRT processing (HW49).
- ISO 14001:2015 —International standard for environmental management systems. Indicates the recycler has documented procedures for waste handling, emissions control, and continuous environmental improvement. This is a baseline certification for any serious recycling operation.
- R2v3 (Responsible Recycling) —Currently the most widely adopted certification in North America and increasingly recognized globally. R2v3 requires annual third-party audits covering environmental health and safety, data security, downstream accountability, and material tracking. For industrial electronics, R2 is preferred over the less stringent baseline certifications.
- e-Stewards —A stricter alternative to R2 that bans the export of hazardous e-waste to developing countries. e-Stewards-certified recyclers commit to the highest standard of environmental and worker safety. For companies with corporate sustainability policies, e-Stewards is often a requirement.
- ISO 45001 —Occupational health and safety management. CRT processing involves high-voltage discharge, implosion hazards, and lead exposure —a recycler with ISO 45001 demonstrates a commitment to worker safety in these high-risk operations.
In addition to certifications, ask the recycler about their downstream processors: where does the CRT glass go? Is it sent to a lead smelter or used as aggregate in road construction? Legitimate CRT recyclers should have a transparent downstream chain and be willing to share their end-processor audit reports.
Q8: Can Kongto Technology help with display recycling?
Yes. Kongto Technology offers a comprehensive trade-in program designed specifically for industrial CRT-to-LCD upgrades. Here is how it works:
- Trade-in credit: Return any functional industrial CRT or LCD display and receive a credit of CNY 200-500 toward the purchase of a new Kongto LCD replacement display. The exact credit depends on the model, condition, and completeness of the returned unit.
- Bulk discounts: For facilities decommissioning multiple machines (5+ units), we offer bulk pricing on both the trade-in credit and the replacement LCD displays. Contact us for a volume quote.
- Certified recycling: All returned displays are processed through our partner hazardous waste recycling facility in Shenzhen. We provide a Certificate of Recycling upon request for your environmental compliance records —useful for ISO 14001 audits or corporate sustainability reporting.
- Data-free guarantee: As noted in Q9 below, industrial displays do not store data. No data wiping is necessary, and we provide a written statement confirming that no user data passes through our recycling chain.
- Logistics support: For customers in the Guangdong-Hong Kong-Macao Greater Bay Area, we can arrange pickup of multiple units. For customers elsewhere in China, we can recommend a prepaid shipping label from a licensed hazardous materials carrier.
To initiate a trade-in, email [email protected] with the model numbers, quantities, and approximate condition of the displays you wish to return. We typically respond within 24 hours with a binding quote.
Q9: What happens to the data on displays that were connected to CNC systems?
This is a common concern, but the answer is reassuring: CNC displays are output-only devices that do not store data. All of the following information resides only in the CNC controller's memory (usually battery-backed SRAM, flash memory, or a hard drive inside the control cabinet), never in the display itself:
- CNC part programs (G-code files)
- Tool offsets and work coordinate data
- Machine parameters and servo tuning values
- Alarm history and diagnostic logs
- Operator login credentials or access control settings
- Network configuration (IP addresses, PLC communication settings)
The display simply receives a video signal (analog composite, VGA, or proprietary digital protocol) and renders it —similar to how a desktop computer monitor does not store the files on your hard drive. Even displays with built-in OSD (on-screen display) menus only store basic user settings such as brightness, contrast, and horizontal position in a small EEPROM (typically 128 bytes to 2 KB), which contains no production data.
For absolute security-conscious organizations: if your display has a built-in USB hub or memory card reader (common on newer industrial LCDs), those peripheral ports could theoretically have been used to store data. In such cases, physically remove or disable the USB/card reader before sending the display for recycling. Kongto can also handle this step upon request.
No data wiping, degaussing, or physical destruction is required for the display itself. This saves significant time and cost in the decommissioning process compared to data-storing devices like hard drives or solid-state drives.
Q10: How much does professional industrial display recycling cost?
Costs vary significantly based on the type of display, the service level required, and your location. Below is a detailed pricing reference for industrial display recycling services in China (2025-2026):
| Service | Typical Cost | Notes |
|---|---|---|
| Drop-off recycling (CRT display) | Free to CNY 50/unit | Many recyclers accept CRTs free of charge; some charge a small fee if the CRT is very large (20"+) or damaged (broken glass) |
| Drop-off recycling (LCD display) | Free to CNY 20/unit | LCDs are easier to process; many recyclers accept them at no cost; LED-backlit LCDs may yield a small scrap value |
| Pickup service (within Shenzhen/Guangzhou) | CNY 100-300 per trip | For quantities of 1-10 units; includes loading labor and basic documentation |
| Pickup service (other cities in Guangdong) | CNY 300-800 per trip | Depends on distance and quantity; hazmat transport surcharge may apply |
| Certified destruction with documentation | CNY 50-150/unit | Includes written Certificate of Recycling or Certificate of Destruction; required for ISO 14001 compliance and corporate audits. Photos of destruction can be provided on request. |
| Data security add-on (displays with storage) | CNY 20-50/unit | For LCD displays with built-in USB/SD storage; includes physical destruction of storage media and a Data Destruction Certificate |
| Bulk decommissioning (50+ units) | Negotiable (typically 30-50% discount from per-unit pricing) | Includes on-site assessment, packaging, loading, transportation, full documentation chain, and consolidated reporting for corporate compliance |
| Kongto trade-in program | CNY 200-500 credit toward new LCD display | Net cost to you can be zero or negative (you receive credit that offsets the purchase of a new display). Contact for a binding quote. |
Cost-saving tips:
- Group displays for bulk pickup to reduce per-unit transport costs
- Remove easily detachable parts (cables, brackets, bezels) —these can often be recycled separately at no cost or sold for scrap
- If using Kongto's trade-in program, the recycling cost is effectively covered by the credit toward your new LCD display
- For small quantities (1-3 units), local e-waste collection events in Shenzhen often accept CRTs free of charge —check with your district's environmental sanitation department