No, it is not the cost of a factory. Replacing two or three cameras a year on the same floor means the cameras were specified for an office and installed in an industrial environment, and the replacements will fail on the same schedule.
Industrial specification is not about better cameras. It is about matching the housing, the rating and the mounting position to the specific thing on your floor that destroys equipment.
What actually kills cameras on a plant floor
- Fine dust. The commonest killer, and the least dramatic. Dust settles on the dome, scatters light and reduces the image to a haze. It also works into any housing that is not properly sealed, where it holds moisture against electronics.
- Wash-down. High-pressure water at close range, often with detergent or caustic, aimed by somebody whose job is to clean the area rather than protect the camera.
- Heat. Ambient heat near ovens, furnaces, boilers and in un-ventilated sheds, made worse by direct sun on a metal roof. Electronics do not fail immediately in heat; they age faster and fail early.
- Vibration. Cameras mounted on machinery frames, on gantries or on columns adjacent to presses lose alignment slowly, then lose connections.
- Chemical vapour. In chemical and fertiliser plants, corrosive atmosphere attacks housings, cable glands and connectors from the outside in, and standard powder-coated steel does not survive it.
- Impact. Forklifts, moving stock and long items being carried through. This is a mounting problem more than a housing problem.
Each of those has a different answer. A single “industrial camera” specification that ignores which one applies to your floor is guesswork.
Reading an IP rating properly
The IP code has two digits. The first is protection against solid objects and dust; the second against water. For industrial work the practical points are:
- IP65 — dust-tight, protected against low-pressure water jets. Adequate for covered areas, not for wash-down.
- IP66 — dust-tight, withstands powerful water jets. A sensible floor for most outdoor and general plant use.
- IP67 — adds protection against temporary immersion. Relevant where floors are flooded during cleaning.
- IP69K — high-pressure, high-temperature wash-down. This is the specification for food processing and similar wash-down zones, and it is a genuinely different class of product.
Two cautions. First, the rating covers the camera housing only — not the cable joint behind it, which is where water and dust usually enter regardless of what the camera is rated for. Second, impact resistance is a separate code entirely: IK, where IK10 is the usual choice for areas with vehicle or handling traffic. A camera can be IP67 and still shatter when a pallet clips it.
Wash-down, chemical and food zones
These three need materials, not just ratings. In a wash-down or food zone, look for stainless steel housings rather than painted mild steel, because the coating on painted steel eventually chips and then corrodes from that point outward. In a chemical atmosphere, ask specifically what the housing and the gland are made from, and whether the vendor has installed in a comparable plant.
An honest constraint worth stating: in the harshest zones, no camera lasts indefinitely, and the correct plan is a specified replacement interval rather than a promise of permanence. What changes with proper specification is whether that interval is measured in years instead of months.
Heat, vibration and where you mount
Most heat and vibration problems are solved by moving the camera rather than upgrading it.
- Mount off machinery, not on it. A bracket on a wall or an independent column will outlast the same camera bolted to a machine frame by years.
- Get out of the radiant heat path. A camera two metres further from an oven mouth, or shaded from a metal roof, runs materially cooler.
- Leave air around the housing. Cameras recessed into tight enclosures cook themselves.
- Mount out of the handling envelope. Identify how high a load actually travels on a forklift, then mount above it — while keeping the angle usable for identification.
These are survey decisions. They cost nothing at installation and cannot be corrected afterwards without new cable.
What to put on the specification
Ask for these to be stated per camera position, not as a blanket line:
- IP rating, and IK rating where handling traffic exists
- Housing material, specifically in wash-down and chemical zones
- Operating temperature range, against the actual measured ambient at that position
- How the cable joint is protected, and where the joint sits
- Expected service interval for cleaning, since dust reduces image quality long before it causes failure
A quote that specifies conditions per position was produced by somebody who walked your floor. A quote with one camera type repeated down the page was not.
Common questions
Is a higher IP rating always better?
Not necessarily worth paying for. IP69K wash-down housings cost considerably more than IP66 and are the right answer only where high-pressure cleaning actually happens. Paying for it across a whole plant when three positions need it is money that would do more good on better placement or lighting.
Can we use ordinary cameras inside a covered shed?
Sometimes, if the shed is genuinely dust-free and temperate - which is rarer than it looks. Fine airborne dust in a shed with open sides will find any housing that is not dust-tight, and roof heat in summer is frequently outside the operating range of indoor-rated equipment.
How often should industrial cameras be cleaned?
More often than anyone expects, and it is the highest-value maintenance task on a plant. Dust on a dome degrades the image gradually enough that nobody notices until footage is needed. Quarterly is a reasonable starting point, monthly in genuinely dusty processes, and it should be a scheduled line in the AMC rather than a request.