In a rolling mill, a foundry, or a paper mill, the problem is not the light level but the surrounding environment: radiation from the product, dust that creeps everywhere, vibration that loosens mountings, and a mobile elevated work platform that cannot enter during production. We build luminaires that continue to operate up to 120 °C ambient temperature and design the installation so that nothing needs to be done to it between two stoppages.
+120 °C
continue, where the nearest LED competitor stops at 105 °C
External driver
the electronics outside the hot zone, up to tens of meters from the luminaire
Between two stops
nothing needing to be done to the installation: lifespan and interchangeability over purchase price
Mining: a Liebherr 9600 illuminating its own working face, dust, vibration, and 24-hour operation
| what we encounter | what did it cost you | what it is about |
|---|---|---|
| The air temperature has been measured, but the product's radiation has not. | A luminaire that on paper falls within budget and in practice fails within a year | measuring point and measuring method |
| The driver enclosure is in the same hot zone as the luminaire | Electronics that fail first, while the LED would still last for years | driver location and cable length |
| Spraying, dusting, or stoking goes on into every corner | Fixtures that lose half their light within a season | IP ratings and cleanability |
| The aerial work platform can only enter during a production stop | Outage persists until the next stop, sometimes for half a year | lifespan and interchangeability |
| Vibration from presses, rollers, and conveyor belts is continuously acting on the structure | Fastening that comes loose and cables that break at the feed-through | securement and strain relief |
| Design factor | What is going on here | What determines it in the design |
|---|---|---|
| Ambient temperature versus radiation | Air temperature is different from the radiation of a oven, a pouring stream or a hot rolled product. The wrong thing is often measured | Determine the measuring point and measuring method in advance. We expect a continuous ambient temperature of +120 °C. |
| Driver seat | Electronics do not belong in the hot zone, and the cabinet is often dozens of meters away. | External driver, maximum cable length between driver and fixture, location and cooling of the enclosure, grounding of the enclosure |
| Cleaning and dust | Spraying or dusting is taking place: flour, cement, grinding dust, fiber | IP ice cream including IP69K where high-pressure cleaning is used, smooth housing without dust traps |
| Chemical load | acids, lyes, ammonia in cooling systems, aggressive vapors | Material selection and coating, stainless steel where the vapors require it |
| Trilling | Rolling mills, presses, conveyor belts, and hammering work constantly vibrate the structure. | Vibration resistance, locking of the fastening and strain relief |
| Maintenance access | The aerial work platform cannot enter during operation, and downtime costs production | Lifespan and interchangeability outweigh purchase price, number of luminaires per light point |
| Color recognition | Visual inspection of product, process, and safety marking | Color rendering index and light color per zone, determined separately for inspection locations |
Which temperature limit belongs to which fixture, which driver is allowed to be placed at what distance, and what the measurement points per zone are, can be found on the page dedicated to that topic. That is more extensive than what fits here.
STEP 1
Recording and lighting calculation
STEP 2
Engineering and custom solutions
STEP 3
Delivery from Nijkerk
STEP 4
Installation assistance
STEP 5
Maintenance and warranty
See for yourself: datasheets and lighting files · manuals · warranty and quality
Background: color rendering and CRI and LB values and lifespan
Standard versions come from Nijkerk and are fast; project configurations upon consultation.
Complete for five years, and up to twenty years on a 316L enclosure.
Yes, that is the normal course of events; the planning is adjusted to the shutdown.
No, not at this moment. For a flour, sugar, or wood dust location in zone 21 or 22, we are not the right supplier.
No, our series is work relief.
Yes, in consultation with the factory concerned.
Send us the zone, the measured or estimated temperature and what is happening nearby. You will receive a proposal including the measurement method, so it is clear where the figure comes from.
| Response | within 1 working day, by an engineer |
| Lighting calculation | free of charge, per zone |
| Test luminaire | on your own mast, upon request |
| Warranty | 5 years complete, 10 years on the housing with maintenance contract |
Rather call directly: 033 785 9809
