Design and Manufacture

General Description

The Alco Beldan NW 100 is a rapid action movable wall system designed for easy, efficient and reliable daily use. Interlocking, individual panels, 100mm thick, carried on rollers running in a top track only, push together with an expanding panel as the last element, to form a complete, secure partition wall. Panels have independently operating pressure seal carriers extending at top and bottom.

Panel Sizes

Panels are custom made with widths from approx. 650mm up to a maximum of 1260mm. Panel heights from 2.00m up to 10.00m approx.

Standard Panel Construction

Each panel is constructed with a welded tubular steel inner frame, clad both sides with 16mm high density boards, isolated from the internal frame. The cavity is insulated using layers of sound absorbing materials as required to achieve the acoustic rating. Cladding boards are retained by removable aluminium edge profiles which do not form part of the panel frame.

Inter-panel connection

Sound leakage through the vertical connection between meeting panels is minimised by aluminium interlocking wedgeshaped, tongue-and-grooved, edge profiles with integral magnetic strips. Profiles may be either exposed, to protect the panel edge, or concealed.

Panel Finishes

Panels can be finished to suit almost every taste and to match with adjacent décor. Standard panels are finished in durable, high-density melamine-faced particleboard, class E1. Other options include: laminates, selected wood veneers, primer sheet for onsite decoration with wall-coverings, and any combination of these using dado rails and mouldings etc. Sections of pin-board and special absorptive acoustic boards may be incorporated; and for ultimate integration, inlaid veneered feature panels sourced and supplied by the client’s appointed joinery specialist.

Operable Acoustic Seals

The acoustic seals are housed in deep, twopiece extruded aluminium carrier assemblies that extend independently at the top and bottom of each panel. The black finished carriers have insulated bridging plates to minimise sound transmission. To ensure leak free sealing and secure panel stability, the seal carriers operate under very high (2kN) spring pressure controlled by a manually operated, rapid action scissor link mechanism (with motor drive option). Our scissor link device provides much longer seal travel for out-of-level floors and facilitates easy setting up of the panels by anyone, using a removable handle.

Track System

Panels are carried on roller hangers running in a white finished metal overhead track, usually recessed into the ceiling. The track must be suspended from a suitable structure adequate to carry the loadings imposed. Track intersections are precision made off-site ensuring smooth transition through junctions into any one of a number of remote panel stacking options

Roller Systems

Special roller units have been developed to match each track to ensure easy movement of the panels through track intersections. Depending upon the configuration, panels are essentially supported using one or two roller units; each on a hanger assembly incorporating our unique height setting device. Tall and heavy panels use a guide roller unit running in special heavy-duty steel track fabricated to facilitate turning of panels into stacking area.

Height Adjustment

Each roller is fitted with a unique, self-locking height-setting device ensuring the panels remain level whilst allowing the height to be adjusted and re-set at a later date without having to interfere with the ceiling.

Sound Reduction

The Alco Beldan NW 100 movable wall system offers the best levels of acoustic performance up to Rw 57dB from panels just 100mm thick. The superlative performance of the top version at Rw 59dB requires a panel thickness of 120mm. NW 100 movable wall panels were tested by an independent laboratory in full accordance with the latest (2002) version of ISO/EN 20 140-3. The Rw 57dB walls were also tested with acoustic boards fitted to one side and to both sides. Test reports and certificates available on request.

Quality Assurance & Disability

Essential requirements of any high quality movable wall system are its build quality and its ability to withstand constant use without adversely affecting performance. Our German factory has attained ISO 9001 accreditation for quality and panels pass the DIN 310.000/3.79 standard test enduring 3,500 operations.

Impact Resistance

Tested in accordance with DIN 18032-3

Thermal Transmission

Up to 0.6 / m2 , depending upon insulating materials within the panel.

Acoustic Ratings