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Home / Crane lighting / Mobile towercrane

Mobile towercrane

A mobile tower crane has two light requirements, not one

First unfolding the boom in the dark, then hoisting for hours above a construction site. That requires two different fixtures, and that is precisely why there is so often one too few hanging.

The setup requires a narrow beam that illuminates a sixty-meter boom from the table. The work afterwards requires an even light distribution on the construction site beneath the boom, in accordance with EN 12464-2, without shining into the surrounding area. We supply both as a single set, controlled by a single driver box, tailored to your crane type and boom length.

Response within 1 business day by an engineer5-year warrantyFree lighting calculation
Herms MK88 tower crane at night with LED lighting
LED floodlight on a mobile tower crane jib during unloading
155.000 lm
Complete Snapper Set
60 I'm a geek
Highlighted during construction
172 lumens per watt
An average of 65 percent less consumption
The problem

The setup is the moment it all goes wrong

A quickly erecting crane from Liebherr, Spierings, or Potain can be set up in an hour. In winter, that hour almost always falls in the dark, and it is precisely then that sixty meters of boom unfolds above a site where no one has a good view. Whatever gets damaged there, you only see the next morning.

What you are running into

Limited installation space. A boom section that folds leaves hardly any construction height. A protruding fixture will be damaged during the first setup.
Setting up in the dark. Without a view of the boom tip, every unfolding movement is a gamble, even for the operator looking from the console.
Vibration, moisture and transport. The crane drives on the road, is assembled and disassembled, and stands outdoors. That is harder on a luminaire than a fixed mast.
Connection to the tap. One crane delivers 230 volts, the other 400 volts. A set that can handle only one of the two will not fit your entire fleet.

What we offer in return

Compact fixtures. The Snapper measures 320 by 210 by 190 mm and weighs 3.1 kg, so it fits within the boom profile.
A custom surface-mounted luminaire. The Piranha, with a 14-degree beam angle, illuminates the entire boom as it extends, up to sixty meters.
IP69K and IK10. Resistant to high-pressure washing, dust, and impact. Five-year warranty for heavy-duty use on the construction site.
One driver box, 230 or 400 volts. The same set fits your entire fleet, regardless of which crane brand stands next to it.
C5-I coating. The highest corrosion class for industrial environments, on a crane that has been outdoors for years and travels on the road.
The two roles

Two fixtures, two tasks

They are on the same set and run on the same driver box, but they do not do the same job. A set with only boom lighting leaves you in the dark while rigging; a set with only a rigging spotlight provides no work light on the construction site.

Mobile tower crane lighting rig with five floodlights, Five TK
Roll 1, boom lighting

Snapper SN35, work light on the construction site

Two to five luminaires along the boom, directed at the work surface below, supplied as a Dual, Triple, Quattro, or Five set. The lens angle is chosen based on the mounting height: the higher the boom, the narrower the beam, so that the light stays on the construction site and not in the surrounding homes.

Luminous flux per luminaire31,000 lm
Set of two to five62,000 to 155,000 lm
Power180 to 900 W
Efficiency172 lm/W
Camera angles30°, 60°, or 90°
Dimensions and weight320 × 210 × 190 mm, 3.1 kg
Applied to40 m installation height
Product rendering of the Piranha 9 heavy-duty industrial LED work light
Roll 2, surface-mounted lighting

Piranha PI-9, view during deployment

One luminaire on the table, with a 14-degree beam illuminating the entire boom during assembly. Where a xenon lamp first needs to warm up, the LED turns on instantly, which makes all the difference during a one-hour assembly process.

Luminous flux8,400 lumens
Power70 W
Camera angles14° of 14° × 46°
Scopejib up to 60 m
ProtectionIP69K and IK10
Warm-up timenone, direct full power
Applied toSpierings AT6 and similar

Shared: the driver box

A single external driver box powers the entire set, directly at 230 VAC or 400 VAC. No separate power supply per fixture, and the same set fits any crane type in your fleet.

Shared: the light color

6500K, 4000K or 2700K. If the construction site borders residences or nature, a warmer color is usually the better choice; we advise on this during the composition.

Shared: lifespan and warranty

Aluminum with C5-I coating, 360,000 hours expected lifespan according to L90B05, and a five-year industrial warranty on the entire set, even with daily setup and teardown.

Technical drawing showing the dimensions of the Snapper floodlight
Installation dimension

The measure on which it all depends

With a quick-mounting crane, the boom folds up, leaving virtually no mounting height. This makes the fixture’s external dimensions more important than its luminous flux: anything that protrudes will be damaged during the initial installation. The Snapper measures 320 by 210 by 190 mm and weighs 3.1 kg, keeping it within the boom’s silhouette. The complete drilling pattern is listed in the datasheet.

The four sets

Dual, Triple, Quattro or Five

The boom lighting is supplied as a set, not per fixture. All four sets share the same Snapper SN35, the same 172 lm/W, and the same driver box; what differs is the number of fixtures along the boom and, consequently, the luminous flux, power, and weight. The set that is compatible with your crane depends on the boom length and mounting height, and we’ll calculate that for you.

SpecificationDualTripleFourFive
Snapper fixtures along the boom2345
Total luminous flux62,000 lm93,000 lm124,000 lm155,000 lm
Luminous flux per luminaire31,000 lm31,000 lm31,000 lm31,000 lm
Power absorbed360 W540 W720 W900 W
Efficiency172 lm/W172 lm/W172 lm/W172 lm/W
Current draw at 230 VACapprox. 1.6 Aapprox. 2.3 Aapprox. 3.1 Aapprox. 3.9 A
Current consumption at 400 VACapprox. 0.9 Aapprox. 1.4 Aapprox. 1.8 Aapprox. 2.3 A
Total weight of fixtures6.2 kg9.3 kg12.4 kg15.5 kg
Driverbox1 external1 external1 external1 external
Beam angles per fixture30°, 60°, or 90°30°, 60°, or 90°30°, 60°, or 90°30°, 60°, or 90°
Light Colors6500K, 4000K, 2700K6500K, 4000K, 2700K6500K, 4000K, 2700K6500K, 4000K, 2700K
ProtectionIP69KIP69KIP69KIP69K
Warranty5 years5 years5 years5 years

Current draw is calculated as power divided by voltage; the weight is that of the fixtures combined, excluding the driver box and cabling. All sets operate on a single external driver box that can be connected directly to 230 VAC or 400 VAC.

The surface-mounted lighting goes on top

The Piranha PI-9 isn’t included in these numbers. It’s mounted on the table and serves a different purpose: illuminating the boom as it unfolds. So plan on one set of boom lights plus one Piranha, both connected to the same driver box. If you’d prefer just boom lights or just surface-mounted lights, that’s also possible; please specify this in your request.

Which set with which crane

More luminaires do not automatically mean better light. What matters is the spacing: five luminaires on a short bracket cause overlap and glare, two on a long boom result in dark patches between the beams. Provide the brand, model, and bracket length, and we will determine the set and the lens angle for each position in accordance with EN 12464-2.

Evidence

Crane companies are retrofitting their existing fleets

That is the strongest signal there is: not just a single test crane, but the entire fleet. In 2019, Jos Blom equipped four cranes and decided in 2022 to convert all remaining cranes. Herms in Epe did the same with its Spierings and Liebherr cranes after several trials, replacing both the superstructure and boom lighting.

At Manitowoc, the first IGO T130 cranes in the Netherlands left the factory with our lighting on them, because the fixtures fit within the boom silhouette.

Jos Blom2019 and 2022

Equipped four cranes with our lighting in 2019 and decided in 2022 to convert all remaining cranes to LED.

Herms B.V., Epeafter trial setup

Converts its existing Spierings and Liebherr cranes after several successful trials. Both the superstructure lighting and the boom lighting have been replaced.

Manitowoc, IGO T130upon delivery

The first IGO T130 models in the Netherlands were delivered with our lighting, because the fixtures fit within the boom silhouette.

Trusted by, among others
The norm

EN 12464-2 is not optional

This is the European standard for lighting at outdoor workplaces. It sets requirements for illuminance, uniformity, and color rendering per task. On a construction site, that is not a mere formality: in the event of an accident caused by insufficient lighting, you as the employer are liable, and then the question is what you can prove.

We calculate your crane and boom length and provide the documentation to prove it: illuminance under the boom, uniformity across the work area, and the amount of light spilling outside the site. Free of charge, even if you buy the set elsewhere.

During a licensing procedure

If you are building in an inner-city area or next to residential properties, the lighting calculation must also include an assessment against the NSVV guideline for light nuisance. That report prevents delays in the procedure and discussions with local residents afterwards.

Why it affects your business
Safety of your peopleSufficient light on the work surface demonstrably lowers the risk of accidents, especially during hoisting operations where the load moves above people.
LiabilityIn the event of an accident involving insufficient lighting, you as the employer are liable. A lighting calculation is the document with which you demonstrate that it was in order.
Construction lead timeBetter visibility means less rework and less downtime when measuring and positioning loads.
The surroundingsIn inner-city construction, lighting helps determine whether work is allowed to continue in the evening. Targeted lighting prevents complaints and licensing disputes.

More about how we calculate can be found at lighting advice and lighting calculation. If you illuminate more than one type of crane, the crane lighting hub the overview per machine.

Other cranes

Each crane type requires its own setup

A mobile tower crane is not the same as a fixed tower crane or a mobile lattice boom crane: the mounting points, the vibration load, and the assembly method differ. If you illuminate multiple types, we will coordinate the sets so that your technicians work with a single system.

Tower crane

Lighting from the boom of a truck-mounted crane, using the DarkLicht crane frame for fully shielded light.

Mobile crane

The Crane Light Director for telescopic cranes, where the light must tilt with the boom.

Mobile lattice boom crane

The Crane Light Stabilizer keeps the beam in place while the boom moves.

Port crane

Lighting for crane runways and bulk handling, where salt, wind and continuous operation determine the requirements.

Questions

Frequently Asked Questions

Can't find your question? Call us with the crane type and boom length at hand, and you'll know what is needed within five minutes.

Because they are two different tasks. The setup requires a narrow 14-degree beam that illuminates a sixty-meter boom from the table; the work after that requires broad, even light on the construction site beneath the boom. A single fixture that does both does not exist: a beam that reaches far does not illuminate the area directly beneath it evenly.

Probably yes. We supply for Liebherr, Spierings, Potain and other self-erecting cranes, and put together the set for your brand, type and jib length. The Snapper is 320 by 210 by 190 mm and 3.1 kg, small enough to stay within the boom envelope when folded.

This is determined by the boom length and mounting height, not by a lumen target. The four sets range from two to five Snapper fixtures, or 62,000 to 155,000 lumens at 360 to 900 watts. What matters is the spacing between fixtures: five fixtures on a short boom cause overlap and glare, while two on a long boom result in dark areas in between. Provide the brand, model, and boom length, and we’ll determine the set and the lens angle for each position in accordance with EN 12464-2.

No. The Piranha PI-9 is mounted on the table and serves a different purpose: illuminating the boom as it unfolds. So plan on one set of boom lights plus one Piranha, both connected to the same driver box. If you want only boom lights or only surface-mounted lights, that’s also possible.

That depends on the mounting height and how sensitive the surrounding area is. As a rule of thumb: higher up on the boom requires a narrower beam, so that the light stays on the construction site. We determine the angle for each position in the lighting calculation; 30, 60, and 90 degrees are available.

On both. The external driver box can be powered directly with 230 VAC and 400 VAC, without modification. That was done intentionally: in a mixed fleet, you do not want to have to keep two types of sets on the shelf.

The fixtures are designed for the vibration and shock loads of machine use, featuring IP69K against dust and high-pressure cleaning and IK10 against impact during Piranha. A mobile tower crane is assembled and disassembled more often than a fixed crane, and that is the load for which the anchorage is chosen.

Yes, that is the most common assignment. Herms and Jos Blom have converted their entire fleet, usually after a trial setup on a single crane. We look at the existing mounting points and the available cabling, so that the conversion fits within a regular maintenance schedule.

Yes, on one crane in your fleet. That is also the sensible order during a retrofit process: first let one crane run for a season, only then the rest. Your mechanics will immediately see how the assembly works out in practice.

The set is explained accordingly. EN 12464-2 sets requirements for illuminance, uniformity, and color rendering at outdoor workplaces; we calculate your crane and boom length and deliver the justification with which you can demonstrate that. That calculation is free of charge.

That is exactly what the lens choice is for. By tuning the beam angle to the mounting height, the light stays on the construction site. If you are building in an inner-city location, we also supply the assessment for the NSVV guideline on light nuisance, so that you can substantiate this to the municipality and local residents.

6500K, 4000K, or 2700K. Cool white provides the sharpest contrast on the work surface; if the construction site borders residential areas or a nature reserve, a warmer color is usually better because it is perceived as less annoying.

Five-year industrial warranty on the entire set. This applies to heavy use on the construction site, including daily assembly and disassembly and road transport.

Request

Provide your crane type, we will put the set together

Brand, type and boom length are enough to get started. We determine the number of luminaires, the lens angles, the mounting points and the driver configuration, and calculate the light level under the boom according to EN 12464-2.

Your request is being reviewed by an engineer. We will respond within 1 business day.

Responsewithin 1 working day, by an engineer
Light calculationfree of charge, against EN 12464-2
Test setuppossibly on one crane from your fleet
Warranty5 years on the entire set
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