Question 1

What are Alutruss prices?

Accepted Answer

Alutruss truss prices vary by system type and dimensions. DECOLOCK 1-point systems start around €65–90 for 0.5-metre sections, suitable for decorative applications. TRILOCK 3-point systems range from €113–165 per metre depending on length, offering medium-duty capacity for stage and exhibition use. QUADLOCK 4-point systems, the heavy-duty option for permanent installations and large spans, typically cost €180–280 per metre. Corner pieces range from €180 for simple 90° DECOLOCK corners to €480 for 4-way QUADLOCK junctions. Custom RAL powder-coat finishes add approximately 15–20% to base pricing. LTT offers competitive pricing on the full Alutruss range with free shipping on orders over €69 within Germany.

Question 2

What is the difference between aluminum Alutruss systems?

Accepted Answer

Alutruss aluminium systems differ primarily in their "point" configuration, which determines load capacity and application suitability. 1-point systems (DECOLOCK, SINGLELOCK) use a single main tube and are designed for decorative hanging or lightweight applications up to 50 kg per metre. 2-point systems (BILOCK, DECOLOCK DQ2) feature two parallel chords and handle up to 200 kg over 2-metre spans, ideal for window displays and small exhibition stands. 3-point systems (TRILOCK) arrange three chords in a triangular cross-section, providing 1,000 kg capacity over 4 metres for medium-duty stage rigging. 4-point systems (QUADLOCK) offer maximum strength with four corner chords in a box section, safely carrying 1,500 kg over 6-metre spans for permanent installations and large concert productions. All Alutruss systems use EN-AW-6082 T6 aluminium alloy with 50 mm diameter, 2 mm wall thickness tubes (except heavy-duty variants with 3 mm walls), ensuring consistent quality across the range.

Question 3

What load capacity do Alutruss trusses support?

Accepted Answer

Alutruss truss load capacity depends on the system type, span length, and support configuration. DECOLOCK 1-point systems handle approximately 50–100 kg over 2-metre spans for decorative use. BILOCK 2-point systems support 200–300 kg over 2–3 metres, suitable for retail and small exhibition applications. TRILOCK 3-point systems provide 1,000 kg capacity over 4 metres, 450 kg over 8 metres, and 260 kg over 12 metres with uniformly distributed loads. QUADLOCK 4-point systems deliver the highest capacity: 1,500 kg over 6 metres, 750 kg over 10 metres, and 570 kg over 14 metres. These ratings assume proper end supports and distributed loads; point loads (single heavy fixture at mid-span) reduce capacity by approximately 50%. All Alutruss load data is TÜV SÜD certified and includes the 5:1 safety factor required by DGUV Vorschrift 17. Always consult the manufacturer's load tables for your specific truss model and rigging configuration.

Question 4

Which Alutruss system is best for permanent installations?

Accepted Answer

For permanent installations in clubs, theatres, houses of worship, and performance venues, Alutruss QUADLOCK 4-point systems are the professional choice. The QUADLOCK 6082 and QUADLOCK QL-ET series use EN-AW-6082 T6 aluminium alloy with four 50 mm diameter corner chords, delivering the high load capacity and structural rigidity required for fixed lighting grids, fly rails, and scenic rigging points. The 290 mm outer dimension accommodates standard theatrical clamps and rigging hardware, while the welded construction and TÜV SÜD certification ensure compliance with EN 1090 structural standards and DGUV Vorschrift 17 rigging regulations. For larger permanent structures, consider the QUADLOCK TQ 390 (390 mm dimension) or QUADLOCK GL 400 (400 mm dimension), which offer extended spanning capability and exceptional weight-to-load ratios for mounting heavy audio and video equipment. All QUADLOCK systems accept custom RAL powder-coat finishes, allowing seamless integration with venue aesthetics while maintaining full structural performance.

Question 5

How do I calculate the correct Alutruss truss size for my project?

Accepted Answer

Calculating the correct Alutruss truss size requires determining your total load, span length, and support configuration. Start by listing all equipment to be suspended (lights, speakers, screens, motors) and sum their weights, adding 20% for rigging hardware (clamps, cables, safety bonds). Next, measure the required span between support points – this is your critical dimension. Consult the Alutruss load table for your chosen system: if your total load and span fall within the rated capacity with uniformly distributed load, the system is suitable. For point loads (heavy fixtures concentrated at one location), divide the rated capacity by two as a conservative safety margin. Consider dynamic loads from moving fixtures or wind exposure by applying an additional 1.5× factor to static weights. If calculations approach or exceed rated capacity, step up to the next system level (e.g., from TRILOCK to QUADLOCK) or reduce span length by adding intermediate support points. LTT's engineering team can review your calculations and provide stamped rigging plans for complex installations, ensuring compliance with DGUV Vorschrift 17 and venue insurance requirements.

Question 6

Can Alutruss systems be mixed with other truss brands?

Accepted Answer

Mixing Alutruss systems with other truss brands is possible but requires careful attention to dimensional compatibility and connector engagement. Most professional truss systems use a nominal 290 mm outer dimension, but manufacturing tolerances vary by ±2–3 mm between brands. Alutruss conical connectors are machined to tight tolerances and will engage properly with Global Truss, Eurotruss, and some Prolyte systems that maintain similar dimensional standards. However, Duratruss and budget-tier brands often have looser tolerances that prevent secure connector seating, introducing dangerous play in the structure. Never mix brands in primary load-bearing elements (main spans, corner junctions) – use single-brand construction for structural integrity. Mixing is acceptable for non-critical decorative extensions or when using purpose-made adaptor plates that compensate for dimensional differences. Always test-fit connectors before committing to a mixed-brand design, verify that safety pins engage fully, and reduce rated load capacity by 20% as a precautionary measure. LTT can provide compatibility verification and adaptor solutions for projects requiring mixed-brand truss integration.

Question 7

What accessories are essential for Alutruss truss systems?

Accepted Answer

Essential Alutruss accessories ensure safe, efficient assembly and long-term system protection. Conical connectors, spigots, and safety pins are the fundamental joining hardware – always purchase spares, as lost pins are the most common cause of on-site delays. Base plates provide stable floor support for vertical truss towers and must be rated for your total vertical load; Alutruss offers models rated from 200 kg to 1,000 kg. Clamps and couplers attach lighting fixtures, speakers, and other equipment to the truss tubes – specify TÜV-rated clamps with appropriate load capacity (typically 100–300 kg) and ensure they fit the 50 mm tube diameter. Transport cases protect truss sections during shipping and storage, preventing the scratches and dents that compromise structural integrity and appearance. Truss covers (socks) conceal cables and provide a clean aesthetic for high-profile events. For frequent assembly/disassembly, invest in a truss hammer (pin claw) to remove tight safety pins without damaging threads. LTT stocks the complete Alutruss accessory range and can recommend the optimal combination for your specific application and usage pattern.

Question 8

How often should Alutruss truss systems be inspected?

Accepted Answer

Alutruss truss systems require inspection frequency based on usage intensity and regulatory requirements. DGUV Vorschrift 17 (formerly BGV C1) mandates annual inspection by a qualified person (befähigte Person) for all load-bearing event technology equipment, regardless of usage. For rental inventory or touring systems that see frequent assembly cycles, conduct visual inspections before each use: check all welds for cracks using a bright light and magnifying glass, verify connector threads are undamaged, confirm safety pins engage fully, and look for permanent deformation or corrosion. After 500 load cycles or 5 years (whichever comes first), commission a detailed inspection including dye-penetrant testing of critical welds by a certified inspector. Replace any section showing cracks, bends exceeding 2 mm deviation from straight, or corrosion pitting deeper than 0.5 mm. Maintain an inspection log with serial numbers, dates, inspector credentials, and findings – this documentation is essential for insurance claims and regulatory compliance. LTT can connect you with certified rigging inspectors across Germany and provide inspection log templates that meet DGUV Vorschrift 17 requirements.