SUPERLATCH®: The Most Advanced Fastening System for Splicing Rebar Pile and Diaphragm-Wall Cages
The vertical Site-splicing of rebar pile and diaphragm wall cages has traditionally included the hazardous manual process of fitting separate fasteners between cages.
The SUPERLATCH® cage splicing shackles are pre-fitted to rebar cages at the cage fabricator’s Works. This simplifies on-site cage splicing for the Contractor through the elimination of separate fasteners. This removes the hand-trapping hazard, thereby reducing the site Health & Safety liability.
When the splicing activity is being performed on site, the weight of the upper cage automatically allows the SUPERLATCH® shackles to lock both cages together, thereby promoting the prompt start of concreting activities. This boosts site productivity, limits premium time working, and reduces wasted concrete.
SUPERLATCH® shackles are CE-marked, denoting compliance with all relevant EuroNorms. Each SUPERLATCH® shackle type is subjected to Temporary Works structural batch testing, ensuring complete product traceability.
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Integral Design to eliminate Separate Fasteners
SUPERLATCH® shackles are pre-installed within the rebar cages at the fabricator’s Works. This eliminates the risk of losing components during transit and simplifies on-site cage splicing for the Contractor through the elimination of separate fasteners, thereby streamlining the cage splicing process.
Gravity-Activated for Hands-Free Safety
By leveraging gravity, the most reliable force in nature, SUPERLATCH® reduces the risks normally involved in cage splicing. When two cage sections are brought together by the service crane, the weight of the upper cage automatically activates the SUPERLATCH® shackles, thereby connecting both cages without the need for tools, fasteners, or operators hands being deployed. This innovative approach can eliminate the risk of hand injuries, so significantly reducing the Site Health & Safety liability.
Time-Saving for Enhanced Productivity
With no need for on-site fastener insertion, SUPERLATCH® reduces the potential for interference fit issues and accelerates cage assembly. This translates into faster deployment and improved overall site productivity.
Robust and Certified Construction
SUPERLATCH® shackles are manufactured from S355J2 (min.) mild steel plate with pivot and escutcheon bolts in grade 8.8 high tensile steel.
Fitting SUPERLATCH® shackles to cage rebars at the Fabricator’s Works, using specified fillet welds, and in accordance with the UK CARES BS17660 weld certification scheme (or equivalent), ensures rigid cage-to-shackle joints.
The articulating nature of each SUPERLATCH® shackle ensures a smooth, positive latching action between two cages when spliced on site.
Environmentally Conscious
Environmental benefits on site through both reduced energy consumption and carbon footprint
Compliance and Quality Assurance
Every SUPERLATCH® shackle features a CE mark and is manufactured to comply with BS EN 1090-1/2:2009 + A1:2011 under third-party certification by the British Standards Institution. The system is backed by ISO 9001:2015-compliant management systems, ensuring top-tier quality. SUPERLATCH® shackles are stamped up with an alpha-numeric code, denoting batch traceability, and supported by regular batch testing.
Proven Track Record in Key Sectors
Since its introduction in 2015, SUPERLATCH® has earned approval on prestigious Civils projects in the Renewable Energy, Waste Water, Highways, and Rail sectors. It has been deployed successfully on major infrastructure developments, including Ardersier Port Extension, Thames Tideway East, M1 Motorway Widening Schemes, and High Speed 2 (HS2).
Patents
SUPERLATCH®, SUPERLATCH® SLIM, and SUPERSONIC® product ranges are subject to the protection of international patents.
Keltbray Piling
We utilised the SUPERLATCH® system to splice the two and three part 1180mm secant wall cages and the five part 1500mm, 1800mm, and 2100mm base-grouted Thanet Sand Pile cages – combining the SUPERLATCH® system with inverted splices to eliminate working at height during pile reinforcement installation. The SUPERLATCH® system impressed all the site team, our Operatives found the SUPERLATCH® system to be rapid and safe. Our Engineers found it highly accurate for vertical positioning, and even with multiple splices, were able to comfortably achieve the stringent contract tolerances. I would heartedly recommend the SUPERLATCH® system for cage splicing, the benefits for safety, productivity, and quality make it the obvious choice.
Van Elle
Van Elle's well-organized site, strong collaboration with the Main Contractor, and efficient sequencing of works ensured significant time savings. Smooth coordination with concrete deliveries further streamlined the process. Additionally, the innovative SUPERLATCH® spliced cage system for steel reinforcement reduced installation time, saving up to half a day per week compared to traditional cages.
Keltbray Piling
I can whole heartedly say how impressed I am with the SUPERLATCH® system being used on our cages at Aykon Vauxhall. We are installing 4No. 1350mm diameter cages per pile, and the operation is saving approximately half to three quarters of an hour per pile, and therefore saving us time. Not only that, but the fact that operatives are getting away from putting their hands inside of cages, or even close during splicing, is another major tick. Going forward, it is certainly the method of cage splice I want to be using due to the H&S and time savings.
Yvonne Ainsworth
I have worked with the patented SUPERLATCH® system on many of the projects I was in charge of. The SUPERLATCH® system enables the hands-free splicing of piling reinforcement cages in their vertical position. Due to the pre-assembled nature of the product (factory fitted), no additional fasteners / bolts / clamps are required. The SUPERLATCH® system enables the quick and easy connection of rebar cages above the hole. It is astonishing how quick it actually occurs (you blink and you will miss it!) The speed with which rebar cages can be spliced, reduces the time a pile bore / D-wall panel remains open, potentially resulting in technical, operational, programme related, and commercial benefits.
