IP65 vs. IP69 touch panels in food processing: when washdown-rated is non-negotiable
When an IP65 front is enough for a food line, when a full IP69 washdown panel PC is required, and how to spec the terminal either way.
In food and beverage production, the operator terminal is not an office accessory — it logs batches, runs recipes, confirms ERP transactions, and fronts the SCADA system. It also lives in an environment defined by daily sanitation: moisture, cleaning chemicals, temperature shocks, and — in washdown zones — direct high-pressure hot-water jets.
Reading the IP ratings honestly
| Rating | What it certifies | What it means on a food line |
|---|---|---|
| IP65 | Dust-tight; protected against low-pressure water jets | Wipe-downs, splash zones, foam cleaning nearby — the terminal front survives routine sanitation |
| IP66/67 | Stronger jets / temporary immersion | Wet zones with hose contact, not sustained high-pressure |
| IP69(K) | High-pressure, high-temperature washdown | Direct hot-water jet cleaning as part of the sanitation protocol |
The critical honesty: most "IP65 panel PCs" — including our standard ITPC industrial range — are rated IP65 on the front panel only. Correctly flush-mounted in a sealed cabinet or enclosure wall, that is exactly right for dry and splash areas. It is not a washdown rating for the whole unit.
Mapping zones to hardware
- Dry-side stations (packing, warehouse, QA office) — standard fanless panel PC; IP65 front is comfortable margin.
- Splash and foam zones (line-side, adjacent to cleaning) — IP65-front panel PC flush-mounted in a sealed stainless enclosure, with attention to gasket quality and gland sealing.
- True washdown zones (direct jet cleaning) — a fully sealed IP69-class unit in stainless steel 316, specified as such end-to-end: enclosure, connectors, and cable entries all rated. This is a project-specific configuration — raise it explicitly in the enquiry.
Beyond ingress: what food plants should also spec
- Glove-compatible PCAP touch — operators wear gloves; the capacitive screens must be calibrated for them.
- Chemical-tolerant fronts — sanitation chemistry is harsher than office cleaner; confirm compatibility with your protocol.
- Fanless construction — a fan is an air path for humid, particle-laden air; passive cooling closes it.
- Wide-range DC power with protection — line power is noisy; 9–36V input with transient protection (ITPC-C class) rides it out.
- Serial + dual LAN — scales talk RS-232; the terminal bridges the machine network and the ERP VLAN.
Panel PCs & HMI
ITPC-C150
Intel Core i3-1215U / i5-1235U / i7-1255U (12th Gen) with 2x Intel I210 Gigabit LAN, Wake on LAN/PXE.
Panel PCs & HMI
ITPC-C156
Intel Core i3-1215U / i5-1235U / i7-1255U (12th Gen) with 2x Intel I210 Gigabit LAN, Wake on LAN/PXE.
Panel PCs & HMI
ITPC-B156-CP2
Photos and drawings sent with your quote
Panel PCs & HMI
ITPC-B156-CP2
Rockchip RK3566 / RK3568 / RK3588 with 1x or 2x Gigabit Ethernet (depends from configuration).
Send the zone map, sanitation protocol, and software stack — we will propose the terminal set, including washdown-rated options where required.
Spec terminals for a food plant