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Armacork Antivibration Cork
Introduction
Armacork is a direct equivalent to Tico S antivibration cork.
The vibration control properties of rubber bonded cork have long been recognised in machine installations. By combining the resilience of the cork with a nitrile elastomeric compound a product has been produced which gives excellent vibration isolation characteristics with the benefit of long term protection against creep and set.
Offered in various sheet sizes and thicknesses Armacork is the ideal entry level material to offer a cost effective and fast vibration control solution for many industrial applications.
The introduction of Armacork between the machine base and the supporting foundation effectively prevents the transmission of structure borne disturbance to the adjacent areas. Supplied in sheet form allows the installation engineers to tailor the pad area to suit the load conditions.
In many applications the degree of isolation can be increased by simply mounting multiple layers of Armacork to form a thicker isolation pad.
Composition
Armadillo Armacork Is manufactured with natural cork granules blended with a medium duty neoprene elastomer. This ensures the natural resilience of the cork particles can resist attack from oils, solvents and common place factory acids.
Furthermore the Armacork has been designed to give a long service life and has excellent resistance to long term creep and set. This means the pad substantially retains the original isolation performance over time.
- Supplied in standard sheet sizes for on site cutting or can be supplied die cut to request.
- Range of 5 thicknesses to suit most applications.
- Can be supplied in washers for effective isolation installation. See Diagram.
- Compressive strength 5.0kg/cms2 (0.50N/mm2)
- High resistance to common oils and solvents.
- Readily bonds into multiple layers for a range of thickness’.
- Prolongs the life of machinery.
- Retains its properties for good service life.
Some practical aspects and considerations when using Armadillo Armacork Antivibration Cork
- Compatible for a wide range of machine types.
- In most captive installations rebound washers will be required. (see diagram)
- Can be used with contact adhesive to avoid the need for anchor bolts.
Pad Area Selection Example
On most machine tools the contact area of the machine foot has been designed to limit the amount of stress the machine exerts onto the support foundation. For this reason it is most common to simply cut the Armacork pad to suit the area of the support foot. For confirmation of this the following calculation can be carried out.
- Take the total machine weight including maximum weight work piece in Kg’s.
- Measure the sizes of each mounting foot and work out the area in square centimetres.
- Add the total area of all the mounting points together to give the total floor contact area.
- Dividing the total machine mass by the total number of square centimetres gives the working stress the pads will be under on installation. This will be a number of kg’s per square centimetres. Armacork is designed to work at any working stress up to a maximum of 5 Kg/cms (0.50N/mm2).
Beyond this additional spreader plates will be required to reduce the working stress. Contact Armadillo for recommendation.
Technical Specifications in detail
Working Temperature.
Continuous temperature exposure limits for long life are 120°C maximum and -30°C minimum.
Armadillo Armacork Tolerances:
Pad Length/Width (mm) 1.6
Pad Thickness (avg.) 0.5
Applications
Load Bearing Pads
Machine Vibration Isolation
Floor Vibration Isolation
Floor vibrations can be caused by walking, dancing, jumping, aerobics and other occupant activities. Mechanical equipment such as heating, ventilating and HVAC systems as well as pumps andin mechanical rooms can also cause floor vibrations. The basic configuration of a floor system should be established early in the design process.
Building Vibration Isolation
Train, traffic or subway generated ground waves can create structural vibration in a building’s foundations and base slab. The effect of this structural vibration is dependant on many factors including but not limited to the stiffness or rigidity of the building foundation, soil dynamics and the amplitude and frequency of vibration.
Foundation Isolation
See our comprehensive range of foundation isolation materials here.
Slide Bearings
Armadillo structural slide bearings are custom designed to accommodate expansion, contraction and other reciprocating motions of any structure that moves as a result of thermal, seismic or differential forces.
Dance Floor Pads
Sports floors, gymnasiums and dance studios require a firm yet resilient feel. This is achieved by supporting the floor on resilient pads to give the correct balance for shock absorbing coupled with sufficient rebound to give the floor a “live” feel. Armadillo DFP15 is the ideal material to achieve this.
Pipe Support Bearings
A new range of bronze bearing plates supplied by Armadillo. These are used for numerous applications within pipeline support systems such as Oil & Gas to Industrial systems.
Materials
Armacork
Offered in various sheet sizes and thicknesses Armacork is the ideal entry level material to offer a cost effective and fast vibration control solution for many industrial applications.
The introduction of Armacork between the machine base and the supporting foundation effectively prevents the transmission of structure borne disturbance to the adjacent areas.
Armaload - DLW66
Armaload DLW66 random oriented fiber (ROF) bearing pads are made from masticated elastomer which is fully cured and fiber reinforced. The random fiber reinforcement provides higher tensile and compressive strength, stiffness, tear resistance and durability than unreinforced rubber pads. ROF bearing pads will support loads up to 2,000 psi before breakdown.
Armaload - Mil-C-882
Armaload is a preformed fabric bearing pad which meets MIL-C-882, AASHTO 14.7.6.1, AASHTO 14.7.6.2 and AASHTO 18.10.1 specifications. Manufactured from compressed layers of closely woven lightweight fabric, bound withmaterial will support loads up to 12,000 psi before breakdown.
Neoprene / Rubber Pads
Some applications do not warrant the expense of a custom made Vibration Control pad but do require some element of resilience in the installation.
In such cases, for slight surface irregularities, Industrial Grade pads can be provided by Armadillo NV as an alternative low cost solution.
Vibstop
Vibstop isolation material is a specifically designed vibration absorbing medium. Produced as a cost-effective solution to isolating foundations whether it be existing machinery or installing new equipment.
Armacush
Armadillo Armacush is an ideal product which not only gives excellent long term performance but is also specifically designed for ease of installation to avoid costly delays in the construction process. Designed for full area coverage the problem of temporary shuttering or designing the mass to be able to span bearing centres is avoided.
PTFE
When movements need to be accommodated in structural connections, a sliding element will need to be employed in the design. Armadillo can design manufacture and supply a cost effective solution for applications such as vessel thermal, petrochemical applications, pipelines or building movement joints. A PTFE surface is applied to Armaload fabric reinforced or ROF bearing pads where higher loads and rotation may occur.
Regupol/Regufoam
Regufoam® was developed as a top-quality mixed-cell PUR foam for vibration damping and structure-borne noise decoupling. Regufoam® is made in various densities with precisely stipulated physical properties. Regufoam® is suitable for foundation decoupling, protecting buildings from vibrations in the vicinity of track systems, vibration insulation in railway construction and passive and active insulation of facility engineering plants and machines.
