3000 Range Frame Cramp

Details

Details

The multi-purpose 3000 Range Frame Cramp is a conventionally fixed tie that incorporates several unique design features. Not only is it the UK’s first formed, fully de-bondable frame cramp, but it is also sufficiently safer and stronger than all other formed ties on the market.

Fully de-bondable

The ACS 3000 range is a multi-purpose de-bondable frame cramp manufactured in accordance with the requirements of BS EN 845-1.

Designed to tie a masonry panel back to a range of structures and substrates, one frame cramp can be used to fulfil a range of applications on site. This includes operating as both a cavity tie and a movement tie when partnered with a de-bonding sleeve*.

The minimum mortar joint thickness for which this wall tie is intended for use is 10mm.

Integrated safety and drip feature

When developing the 3000 range, we wanted to design and manufacture a product that addressed a common on-site safety concern – accidents and injuries caused by frame cramp.

Thanks to the Engineered safety end, construction companies and bricklayers no longer have to rely on purchasing and fitting plastic caps to reduce frame cramp injuries.

Another core element of the 3000 range is the integrated drip feature. The staggered spacing ensures a drip is positioned within the open cavity and the formed shape causes water droplets to roll off the tie. This prevents moisture passing from the outer to the inner leaf of the building.

Expertly designed profile

Not only is the 3000 range highly versatile and extremely safe, but the profile has also been carefully considered to enhance strength and aid the installation process. Here’s how…

• The advanced punched and pressed profile of the frame cramp means it is capable of withstanding high loads as a result of its increased sectional properties.
• The slotted upstand provides the user with vertical tolerance when fixing to the structure, which reduces the likelihood of the cramp being bent on site to suit brickwork coursing.
• The 3 holes assist with adhesion into the mortar.

 Clearly defined embedment markings

If frame cramp are not sufficiently embedded into mortar joints, this can spell disaster for the longevity of a building. That’s why the 3000 Range Frame Cramp have clearly defined embedment markings along the body, set at 62.5mm, so that ties exceed the minimum embedment of 50mm.

Independently tested

This cramp has been independently tested at Lucideon, a development and commercialisation organisation (DCO), specialising in materials technologies and processes. Results have shown that this product is inherently stronger than the traditional style cramp that is widely available in the marketplace at present.

The performance of the frame cramp is determined by the position of the fixing. At the lowest point of the slot, the frame cramp will have a declared load capacity of 1.0kN.

As the fixing position alters, the capacity of the tie will reduce. ACS recommends using oversized washers with the fixing when installing cramp with a vertical slot.

Tie Dimensions and Standard Tie Lengths

Installation & Best Practice

Wall ties should typically be installed at a density of at least 2.5 ties/m2 for walls in which both leaves are thicker than 90mm. This can be achieved by spacing the wall ties at 900mm horizontal centres and 450mm vertical centres, staggered at alternate courses.

Wall ties should be evenly distributed over a wall except around openings or at an un-bonded panel edge where the tie density should be increased to 225mm vertical centres within 225mm of the opening or edge

The length of the tie should be sufficient to allow an embedment of at least 62.5mm meaning that the minimum embedment of 50mm is always achieved after allowing for site tolerances.

Recommended Fixings

Declared Load Capacity

The ACS 3000 range wall tie has been tested in accordance with BS EN 846-6: 2000 for the determination of tensile and compressive load capacity and load-displacement characteristics of wall ties (single end test). Based on the results of the tests the capacities declared in the table below were established.

ACS can supply a range of corrosion resistant fixings to suit various applications. The list in the table above represents typical fixings used. For more information or alternative fixings please contact the ACS Technical Department.