Lighting towers are essential tools in numerous sectors: from construction sites to emergency areas, from nighttime events to roadworks. In all these contexts, continuity and reliability of power supply are crucial to ensure safety, productivity, and operational comfort. At the core of these machines lies the alternator, the beating heart that powers the lighting systems.

Linz Electric offers the market two flagship solutions specifically designed for lighting towers: the Alumen series and the SLS series. Both represent complementary approaches to the same need: compactness, robustness, ease of use, and a level of reliability that perfectly meets the demands of those working in often tough and continuous conditions.

Alumen Series

The Alumen series was developed specifically for lighting towers equipped with halogen, metal halide, or LED lamps. These are single-phase, 4-pole brushless alternators, featuring an auxiliary winding that regulates the voltage charged on the capacitors.

Power Range

• 50 Hz (1500 rpm): from 3.5 kVA to 8 kVA
• 60 Hz (1800 rpm): from 4.2 kVA to 10 kVA

This range makes the series particularly suitable for small and medium-power lighting towers, widely used in mobile sites and temporary installations.

Key Features

• Top-class efficiency – average efficiency 4% higher than main competitors and optimal total harmonic distortion.
• Compactness and easy installation – one-piece die-cast aluminum body with SAE5 flange and integrated lifting eye.
• Robustness and reliability – class H windings, stator with double impregnation, and long-lasting high-reliability capacitors.
• Flexible design – customizable versions with or without terminal box, capacitors, or flying leads.
• Simplified maintenance – direct access to diodes and an easily removable rotor.

SLS Series

If the Alumen series represents the ideal solution for those seeking simplicity and efficiency, the SLS series stands out for its ability to reach higher power outputs and its use of electronic regulation (AVR). SLS alternators are single-phase, brushless, synchronous, 4-pole, and ensure stable and precise output, ideal for applications that require continuity and an auxiliary AC source.

Power Range

• 50 Hz (1500 rpm): from 10 kVA to 15 kVA
• 60 Hz (1800 rpm): from 15 kVA to 20 kVA

A range that covers the most high-performance lighting towers, suitable for continuous operation, is often required on large-scale construction sites or infrastructures.

Strengths of the SLS Series

• Compactness – higher power density than the market average.
• Proven reliability – steel/aluminum structure, anti-vibration shields, robust rotor, and damping cage.
• Electronic voltage control – stability within ±1%.
• Easy installation and maintenance – accessible terminal box with quick trimmer adjustment and assembly without removing the rotor.
• Performance under harsh conditions – class H windings, short-circuit current up to 3 times nominal for 10 seconds, and overload of 10% for one hour every 6 hours.

In construction and infrastructure, lighting towers must meet particularly stringent requirements. A nighttime site demands constant and safe lighting, regardless of environmental conditions. This means the lighting tower must be:

• Reliable, to avoid work interruptions,
• Resistant, to withstand vibrations, dust, and adverse weather,
• Easy to handle and assemble, to reduce installation time,
• Easy to maintain, reducing downtime that slows operations.

How Linz Electric Meets These Needs

• Mechanical robustness and extra impregnation of windings ensure continuous operation even in the toughest conditions.
• Compatibility with distorting loads, typical of LED lamp power supplies.
• Easy installation and maintenance allow manufacturers to reduce assembly time and users to keep lighting towers always ready for use.
• High efficiency reduces fuel consumption, an important factor on worksites where operating costs directly impact competitiveness.

In this way, the Alumen and SLS alternators become a real strength for manufacturers and operators in the construction sector, with clear benefits for the end customer.

It is no coincidence that Linz Electric alternators have been chosen by leading lighting tower manufacturers worldwide, becoming a benchmark in the sector thanks to their ability to combine Italian engineering tradition, innovation, and attention to detail.