Struyk Verwo group

Struyk Verwo group is the market leader in public paving in the Netherlands. The installation for which Alara-Lukagro has made a acoustic enclosure was supplied by the German supplier HESS Group and is used by Struyk Verwo for the production of concrete paving stones kerbs. The fully automatic production is accompanied by a high sound pressure level of approximately 120 dB (A) during the vibration-compaction process.

Soundproofing enclosure of Alara-Lukagro

The heaviest panel type AL-O/100D of Alara-Lukagro has been chosen for the enclosure. This results in an average sound pressure level of approximately 85 dB(A) on the outside of the enclosure and approximately 66 dB(A) in the fully disconnected control cabine. The dimensions of the enclosure are 11,500 (L) x 11,000 (W) x 5,100 mm (H).

The entire design has been coordinated with Struyk Verwo in close consultation, taking into account:

• Large doors, size 3.400 (W) x 4.500 mm (H) for easy access for mould changeover, forklift truck and aerial work platform (AWP);
• Integrated steel construction for the weight load of the crane track (incl. Lifting load), hydraulic power unit, kubel raw material transport and height-adjustable hoppers;
• Fully acoustically disconnected control cabin, dimensions 6,600 (L) x 3,200 (W) x 3,700 mm (H) with doors, computer floor, and large windows for an optimal view on the production installation;
• Sound-absorbing locks for the pallet supply and product discharge, including electrically operated hatches for the best possible noise reduction;
• Stairs, platforms and all-round railing, including tilt gate (for service purposes on the roof), integrated electric revolving doors (for kubel transport), and cleaning platforms (for cleaning kubel on the roof);
• Checker plate over the entire roof surface.