Still using concrete bored piers?
Watch this animated simulation to see which
method is faster.
REASONS TO SWITCH
Fast and easy
to install
No spoil
to remove
If it rains...
no dewatering
Pump concrete
once – not twice
Eco-friendly
building product
Katana Screw Pile Overview
The Top Plate / Drive nut
The top of the pile is capped with a 16mm thick plate with a 36mm threaded hole to accept multiple Katana pile accessories for locking in concrete footings. The top plate, when used with the Katana drive tool, has the safety benefit of engaging the pile to reduce the likelihood of the pile falling out of the drive head during the drilling process.
The Pipe
The pipe section (shaft) is made from Australian made Grade 400 + high-tensile steel. Our thick-walled pipe sections (4.0mm and 5.5mm) means Katana screw piles do not require concrete core filling.
The Twin Helical Plates
The ‘twin-fin’ Katana helix is symmetrically designed to efficiently slice through underlying strata. The result is a screw pile that can be drilled faster and deeper into harder soils with no spoil to remove. The helix diameter ranges from 250mm to 350mm, depending on the pile size.
The Cutting Comb
As the first point of contact with the soil, the cutting comb serves two purposes. Firstly, it makes drilling easier by the design of the teeth and being able to cut through hard material. Secondly, it makes vertical alignment more accurate by the symmetry of the cutting teeth and our twin-fin helical blades.
Applications
Single Dwellings & New Estates
New housing estates are typically ‘cut and filled’ to create an even ground surface. When soil is taken from one area and moved to another, the natural compaction of the soil is disturbed.
Screw piles are ideal for single dwellings and new estates because they can be drilled to the required depth to reach torque and prevent future settlement (cracking) of the foundation.
Knock – Down Rebuild Projects
For a Knock-Down Rebuild project, the old foundation must be demolished and removed prior to constructing the new foundation. This often requires the site to be filled, which means deep foundations are needed to minimise differential movement in the soils.
Screw piles are recommended for knock-down rebuild projects because they can be drilled up to 7m in depth.
Medium Density Residential
Development that contains two or more dwellings and is no more than two storeys in height are best suited to screw pile foundations. The main reason for this is because screw piles can be installed much faster than concrete bored piers.
For a large medium density housing project, switching to screw piles could save you weeks in construction, saving you thousands of dollars!
Raised Floors
When building a home on a sloping block of land, screw piles are the most efficient method to land these homes.
Our raised floor system comes hot dipped galvanised with adjustable height bearer plates that facilitate a level building installation without the need for packing. The KATANA raised floor system is compatible with Timber, Universal Beam, and Parrallel Flange Channel bearers.
Product Range
Pipe Options
The Katana Screw Pile can be further customised for your application requirements.
Manufacturing
100% Australian made and CodeMark certified! Katana screw piles are manufactured in Brisbane using Australian made 400+ Grade high tensile steel.
Connectors and Accessories
Katana has innovated a series of connectors and accessories designed to enhance the functionality of the threaded hole in the Square Drive Head. These elements facilitate the versatile use of Katana Screw Piles in various foundation and building applications.
Each component, within this range, has undergone meticulous design and testing, ensuring a seamlessly connected “system” that meets the necessary load capacity and other engineering design requirements. This approach eliminates the necessity for improvised connectors, providing enhanced design certainty.
Require an extension for a pile?
The Katana Pile Extension is utilised when pile lengths exceeding 4.0m are required.
Need the pile to be embedded in the footing?
A 250mm N16 Adjustable Edge Beam Connector is employed for the embedding of the Katana Screw Pile into concrete footings.
Worried about supporting the slab adequately?
Extensive studies conducted with the University of Melbourne affirm that the Katana Square Drive Head at the pile’s top is sufficiently capable of supporting typical slabs.
Looking to cut the pile?
The Katana Cut Drive Nut can be positioned atop the trimmed pile, mimicking the Katana Square Drive Head.
Is the project in need of a raised floor?
Katana provides all the essential connecting bearers to meet any raised floor system specifications.
Is there a particular connector or accessory not mentioned above?
If the application is not covered by the listed connectors or accessories, you are encouraged to contact us. Katana may be able to create a customer connector tailored to specific foundation needs. We are enthusiastic about assisting you in exploring innovative uses of the Katana Screw Pile for various building applications.