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We supply Waxed Cardboard Cones & Centralisers
HOLDING- DOWN BOLT ALIGNMENT SYSTEM
Keep holding-down bolts aligned from pour to steel erection.
The Centraliser® System eliminates bolt movement during concrete pours, ensuring fast, accurate steel erection with zero rework.
CENTRALISER UNITS, WAXED CARDBOARD CONES AND PROJECT-SPECIFIC TECHNICAL SUPPORT SUPPLIED ACROSS THE UK.
35+ yrs civil engineering
UK-wide supply
On-site demonstrations
Rapid dispatch on stock
Project take-offs
Bolt Alignment — Done Right First Time
Centraliser® holds holding-down bolts securely in position during the concrete pour — preventing movement, maintaining alignment, and ensuring steel erection can proceed without delay or adjustment.
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No bolt movement during pour
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Accurate alignment within tolerance
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No post-pour adjustments required
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Ready for immediate steel installation
THE PROBLEM
Misaligned bolts create problems long after the concrete has been poured.
Traditional bolt-box assemblies can allow waxed cones to move, distort or become damaged during installation and concreting. When bolts move away from their intended position, valuable baseplate tolerances may be consumed before steel erection begins
WITHOUT CENTRALISER
WITH CENTRALISER
01
Bolts drift from their intended centre
04
Baseplates do not align cleanly
02
Cones lean, move or collapse
05
Bolts require adjustment or remedial work
03
Concrete and debris enter the bolt void
06
Steel erection is delayed
THE SOLUTION
A simple solution inside the
bolt box.
Centraliser is fitted around the holding-down bolt and positioned within the waxed cardboard cone. Its form helps locate the bolt centrally while providing internal support to the cone — creating a more stable bolt-box assembly before and during the concrete pour.
Locates the bolt centrally within the cone
Provides internal support to the waxed cardboard
Helps protect baseplate erection tolerances
Reduces avoidable on-site remedial work
THE BENEFITS
Better control at every stage of installation.
Centraliser is designed to help maintain bolt position, support cone stability and reduce avoidable remedial work — from foundation pour through to steel erection.
Accurate Bolt Positioning
Helps maintain the bolt in its intended location within the cone.
Reduced remedial work
Better initial positioning reduces the need for cutting or correction.
Protected tolerances
Helps preserve the movement allowance required during steel erection.
Faster Steel Erection
Correctly positioned bolts make baseplate alignment more efficient.
Improved Cone Stability
Provides internal support and helps reduce distortion or crushing.
Cleaner bolt voids
Can help reduce the risk of debris entering the cone opening.
THE PROCESS
From bolt-box assembly to steel erection
A four-stage workflow that integrates into existing site procedures.
01
Confirm the specification
Review cone dimensions, bolt diameter, embedment depth and baseplate requirements.
02
Assemble the bolt box
Fit Centraliser units to the bolt and position them within the waxed cone.
03
Install and pour
Secure to the setting-out system and complete the concrete pour.
04
Prepare for steel
Protect the bolt void until structural steel is erected.
THE PRODUCTS
Two related ranges. One controlled installation.
CENTRALISER SYSTEM
Bolt Alignment Units
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Suitable for a range of bolt and cone configurations
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Standard and project-specific selection
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Bespoke requirements considered
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Technical support included
WAXED CARDBOARD CONES
Heights 229 – 762 mm
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Designed for holding-down bolt-box applications
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Wax coating provides moisture resistance
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Multiple heights and diameters
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Supplied separately or with Centraliser
PROJECT EVIDENCE
Used on structural steel-framed projects across the UK
From distribution centres to industrial units — Centraliser supports contractors on demanding programmes where bolt accuracy matters.
DISTRIBUTION CENTRE
Prologis Park Fradley
Lichfield, DC2
LOGISITICS HUB
Peddimore Unit B
Birmingham
INDUSTRIAL STEEL FRAME
East Midlands Gateway
Plot 5
TESTIMONIALS
Proven through practical site use
I initially dismissed Centraliser as another gimmick, but after seeing the product demonstrated on site, I quickly changed my mind. The cones remained rigid during installation and the bolts stayed correctly aligned.
Mark Jackson
Hannon Brothers
A practical product that addresses a real on-site issue. The technical support during planning made specification straightforward and the units performed as described.
Site Engineer
Major UK Contractor
Reduced the need for bolt correction at steel erection stage and helped maintain programme. Will be specifying on the next phase.
Project Manager
Structural Steel Specialist
PLAN YOUR NEXT PROJECT
Planning your next structural steel project?
Send us your bolt schedule, baseplate details, cone sizes or steel layout. We'll help identify the appropriate Centraliser units and quantities for your project.
07958 007153
UK-wide supply
GET IN TOUCH
DIRECT CONTACT
07958 007153
Mon - Fri
United Kingdom
UK - Wide Supply
WHAT TO INCLUDE
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Bolt diameter and quantity
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Cone dimensions
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Number of bases
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Embedment depth
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Project drawings if available
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