AM12 stands for "ArmesMaini Pallet Rack" with 12 fold upright -10 folds are right angle bends and only 2 wing bends are 60. Within the AM12 range, ArmesMaini has developed various types of racking for light, medium and heavy loads. They all have the same upright design, with different dimensions and thicknesses ranging from 1.5mm to 3.00mm according to the capacity from 4.5T to 30T, in order to offer the most appropriate solution each time.

AM12 upright profile is provided with a central 15mm deep stiffening rib. The beam brackets are provided at the front with lugs which fit into the upright holes and, via their U-shaped profile which envelops the upright, fitting into the central rib, guarantee perfect hooking. In addition to standard beams for pallet racking applications, specific profiles are used for supporting shelves and plates for picking operations, or for creating one or more passageways. Wide range of available accessories permits customisation of the storage structure to suit many different needs.

Armes Maini designs and produces racking for installation in seismic areas, or for use in cold rooms, or for outdoor applications.

DESIGN CALCULATION BASIS
The load capacities of the various parts of the structure take into account the weight of the structure itself and the effective load and are based on the hypothesis of a uniformly distributed load (u.d.l.). Calculation of the load capacity of the frames takes account of the relative working conditions, considering the number, position and height of the load levels, the presence or absence of vertical bracing and the ground anchorage characteristics. These capacities are calculated with the aid of an automatic code developed specifically for the evaluation of pallet racking. The relevant S.I.C.S. software ("Sistema Integrato Calcolo Scaffali" – integrated shelving calculation system) was developed by the industrial shelving section of A.C.A.I. (Associazione fra i Costruttori in Acciao Italiani - Italian Steel Constructors Association). Deflections of the beams are within 1/200 of the span.

The tests carried out and the entire set of algorithms used for the procedure comply with the most authoritative framework of standards and recommendations applicable in Italy and on a European level, including:

• A.C.A.I. CISI Technical Norm for the heavy pallet racks type of 28/06/2002;
• UNI ENV 1993-1-1:1994 and UNI ENV 1993-1-3: 2000 (Eurocode 3 – Steel structures design);
• CNR-UNI 10011:1997 (Steel constructions: instructions for the calculation, the execution, the test and the  maintenance);
• CNR 10022:1998 (Cold profiles: instructions for the use in the constructions);
• D.M. 09/01/1996 (Technical Norms for the calculation, the execution and the test of the normal, pre-compressed concrete structures and for the metal structures);
• F.E.M. (Fédération Européenne de la Manutention) recommendations 10-2-02.
Application of the automatic code was supported by a prior series of experimental tests performed at university laboratories and designed to assess the principle geometric and physical parameters.