18-546 OMNIMOUNT 30.0 WBX

Description

OMNIMOUNT UNIVERSAL MOUNTING SYSTEMS

Omnimount Universal mounting systems offer an elegant, cost-efficient and safe method of mounting equipment in almost any location. Since the introduction of the product in the USA in the early 1980’s, it has been adopted as a ‘standard’ mounting system by many specifying consultants, and also by equipment manufacturers who have designed the fixing anchor-points into their products. Laboratory data from structural testing has been combined with field experience to set weight/range guidelines to help select the correct model for each application, with safety a particular consideration, and these guidelines should be considered carefully before ordering or specifying. Since the uses of Omnimount are “limited only by imagination”, creatively unexpected applications are being devised all the time. As familiarity increases with Omnimount assemblies, more new applications become apparent.

The heart of the Omnimount system is a patented ball and clamp assembly. It works with a variety of tube lengths and bend configurations, brackets, mounting plates, threaded rod adapters, and accessories – all available in many sizes and load handling capabilities. Omnimount assemblies give omnidirectional adjustability, far beyond the usual pan-and-tilt functions, combining omnidirectional movement of the clamp assembly with lateral and rotational movement of the tube – to get exactly the angle needed.

The functional design of Omnimount not only looks elegant, but also eliminates the need for expensive custom fabricated brackets. Hooks, eye bolts and chain combinations can be replaced by a single mounting – not only visually more attractive, but far easier to align to exactly the desired position.

Basic Nomenclature

The Omnimount system is divided into five series: 20.5, 30.0, 60.0, 120.0 and 240.0 – each series being available in a variety of styles. Complete model numbers within each series begin with the series number, followed by certain letter code suffixes. The series numbers denote the size and support capabilities. The letter codes denote the model, and also indicate what component parts are included. For example: Model 60.0WA is series 60.0, letter code WA (wall assembly type arm) indicates that it is typically used for mounting objects on walls. A bracket is provided together with a cover that goes over the bracket.

Ordering Note: Series 10.0 is now discontinued.

How it works

Wall bracket (3) is fastened to the wall through three mounting holes. Tube (4) slides through the bottom hole in the wall bracket (3). Bottom lock nut (2) threads onto the tube (4) before the tube passes through the top hole in the wall bracket (3). Top lock nut (1) is threaded onto tube. Top lock nut (1) and bottom lock nut (2) are then tightened against top hole in wall bracket (3), locking the tube (4) into position. Cosmetic cover (9) is aligned with wall bracket (3) and pushed toward wall until it clicks into locked position on the wall bracket. Clamp assembly (6, 7, 8, 10, 11) is then fastened to the object that is to be mounted, using the mounting holes in the clamp plate. The mounted object is then lifted into position, with the two ball cavities in the clamp assembly surrounding the ball (5). Main tensioning bolt (8) is tightened, pressing jaw (11) and clamp plate (6) into ball (5). Clamp plate and jaw teeth (6, 11) bite into the surface of the ball (5). Continued tightening of the main tensioning bolt (8) will cause a slight elliptical distortion of the ball’s spherical shape; this distortion actually enhances the retention function. The combined action serves to lock the chosen angle of adjustment and prevents slippage of the clamp assembly. Cap nut (10) is precisely threaded to a fixed depth, helping prevent over-tightening of the clamp assembly while providing optimal compression of the ball (5).

Fixed Installations

Omnimount products must be installed in a professional manner, following recognized construction standards and practice. When the installation is in the public sector, it may be necessary to conform with specific building regulations. It is essential that the wall, ceiling or other surface where the Omnimount is to be fitted is capable of sustaining not only the total loading proposed, but also of accepting the method of fixing (eg. woodscrews into joists, masonry bolts into concrete or brick walls etc) with an adequate “pull-out” resistance. A structural engineer, architect or suitable building contractor should be consulted if there is any doubt about the suitability of a particular part of a building.

It is also important to verify the strength of the object that is to be mounted, and to check the construction of the object is at least sturdy enough to support its own weight – especially at the point of attachment of the Omnimount assembly. Ensure the fixings used to connect the Omnimount to the object will anchor securely, and not work loose.

Mobile Installations

The loading ranges for each series are defined for fixed installations – where no external motion forces are present. If an Omnimount assembly is used inside a moving vehicle for example, other loadings from external forces must be considered. To compensate for dynamic loading from impact stresses or excessive vibration, select an Omnimount assembly capable of supporting greater weight than the object itself; sometimes this means choosing a model in the next series up.

Size to Weight Ratio

When using Omnimount assemblies, physical laws affecting balance and stability are involved; distribution of load and centre of gravity should always be carefully considered. Most objects when properly mounted on Omnimount assemblies have acceptable size-to-weight ratios; these include most television monitors and loudspeakers. Other objects may have awkward proportions that will require reinforcement as well as careful consideration of the centre of gravity and the distribution of load.

If there IS ANY DOUBT about the weight range, the distribution of the load, the centre of gravity, or if the Omnimount assembly is to be used in an inverted or other unusual position, then a model should be chosen where the load weight falls towards the lower end of the rated range.

Whilst the metal parts of the Omnimount are always very conservatively rated, the bending movement at the ball clamp must always be considered. It is particularly important not to choose a model at the top of the rated loading range for large loudspeaker cabinets where the position of the centre of gravity may cause high bending torque at the clamp. In these cases, always give consideration to selecting the next range up. Omnimounts that have been installed and damaged at the clamp due to excessive stresses cannot be returned for credit. IF IN DOUBT, ASK!

Adapters and Accessories

Several kinds of adapters and plates are available, which connect onto threaded rod, hook clamps and strut members:-

Threaded Rod and MTA Adapters

Threaded steel rod (also known as ‘studding’) can be used as a convenient and economical mechanical support. It is available from many hardware suppliers to order in long lengths, but 1 metre rods are available as Canford stock accessories. These can readily be cut to length as required, and are supplied self-coloured. Canford stock metric threaded rods, which require appropriately threaded nuts to allow attachment to mounting points. MTA thread adapters allow Omnimount UNC thread types to be converted to the metric thread present on the rods.

MCP Series Ceiling Plates

For suspended ceiling applications, the rod is hidden above the ceiling tile, and coupled to the Omnimount adapter, provides the required extension and mechanical support from below the suspended ceiling up to the structural ceiling - at which point it is secured, using a ceiling plate flange. MCP ceiling plates are manufactured from 6mm sheet steel. They are finished black, and are supplied complete with appropriately threaded nuts to suit all series.

Dual Pivot Systems

Two ST or STX models, coupled at each end, provide two pivot points. MTA adapters and a length of threaded rod can be used to achieve this. A way of handling sloped ceiling installations is shown in illustration ST + MTA + Threaded Rod + MTA + ST.

Full details of versions available and thread sizes are shown in prices section.

Hook Clamp Adapters

Threaded rod adapters can also be used with lighting bar hook clamps using an appropriate size bolt through the bottom leg of the clamp into the adapter.

Strut Members

These steel structural members are designed for wall-mounting the 240.0 series Omnimount assemblies. They allow the load to be shared by as many as three vertical wall studs. This is especially suited for prefabricated partition wall installations where light gauge steel studs are used, or conventional wood and plasterboard construction where there is uncertainty over the stud strength.

Two U clips and a lock nut at the top of the tube lock the assembly into position. This accessory comes complete with end caps and closure strips as standard in black. The strut members may also be set into the wall by first cutting out a recess and then mounting the struts flush against the exposed studs. Strut length 915mm.

Quick Adjust Handles

20.5 and 30.0 series only. Includes knob, spacer and tensioning bolt. For easy adjustment of clamping angle.

Safety Cable

If a safety back-up is required, a safety cable complete with end fittings is available. Maximum strength is in excess 450kg, length 840mm. Part number SC1000.

Vibration Isolators

The 60.0 ISO-W isolator can be used with the 20.5, 30.0 and 60.0 series Omnimount assemblies. The most effective use is with the 30.0 and 60.0 series. For all applications, a minimum of two isolators is required.

For example with a WA or WB model, one isolator is affixed to the top hole in the wall bracket, the other to the bottom hole. It is optional depending on weight load and other factors, for a third isolator to be installed in the centre hole on the wall bracket.

Alternatively, the 60.0 ISO-W could also be used when MCP plates are installed in the ceiling. For this application however, four isolators are recommended. If additional isolation is desired at the clamp assembly, two or four isolators will be required depending upon the number of holes in the particular clamp plate chosen for the isolation.

Dimensions: Depth 61.5mm. Mounting hole centres 82.5mm (centreline holes). Mounting hole diameter 12.5mm. Screw thread ¹/₄ – 20UNC, 25mm screw and washer provided.

Mounting Assemblies for Acoustic Horns and Drivers.

For this application, the clamp assembly attaches to the mounting surface instead of the object to be mounted. This inverted mounting configuration has been specifically developed for professional horn/driver loudspeakers – as used in stadiums and arenas, and for concert sound reinforcement. The inverted configuration offers many other potential applications as well.

Type Codes

The series numbers denote the rated loadings range:

Full dimensional data is available at www.omnimountpro.com

Note that the MTA and MCP series of metric adapters and ceiling plates are manufactured by Canford, and so are not shown at this site. However, apart from thread sizes, they correspond to the Omnimount TA and MP series respectively.