Product Training: Unitrunk Cable Ladder

Ep.2 – Weekly product training, this week with Terry Harmer.

Medium Duty Unitrunk Cable Ladder is for running heavy cables, cable bundles and pipework.  Ladder is ideal for installs where there are long spans between supports because of its heavy-duty manufacture.  It has 300mm spacing between the rungs, so the cables can enter and exit at any point along the length.  This also provides airflow which prevents the overheating of cables.

Ladder is available in both pre-galve and HDG so it can be used in both internal and external applications.  We have supplied this product for installation in factories, warehouses, car parks and supermarkets, just to name a few.

Benefits of Unitrunk Cable Ladder

There are many benefits of Unitrunk Ladder, the first one being in the side wall.  It has an I-Beam profile which is much stronger than the more standard C-Section profile supplied by most other major brands.  The side wall is 110mm deep in comparison to other brands which are only 100mm deep, so this gives you an extra 10mm of depth.  Secondly, the rungs on the bottom of the ladder alternate which is another strength over Legrand as they have all the rungs facing downwards.  The alternate rungs provide much more flexibility in how you use the Ladder and what you can fix to it.

On the side wall, the holes are in the centre of the wall which again adds strength.  Most of the other major brands have holes on the top or the bottom of the side wall.  This can make it a bit weaker where the bottom rungs are attached.  The Unitrunk ladder also has a pre-drilled hole on the side wall where you can attach the earth link.

Sizing and Accessories

This product comes in a variety of sizes from 150mm to 900mm wide, they are all available in HDG and Pre-galve.  All the accessories come with an inbuilt coupler which slot into the tray.  Because of the I-Beam sidewall, you end up with a stronger joint and less movement than other brands.  The accessories fix to the ladder with nuts and bolts.  The bolts have a square shank so they slot into the holes.  This means less movement and less likelihood of it loosening.

The Vertical Adjustable Coupler is brilliant for creating your own angle which you wouldn’t be able to get with the standard risers.  The Long Adjustable Couplers can double up as a reducer as it has the perforations down the length.  The External Flange Clamp sits on the edge of the ladder and can be bolted into a piece of channel which would hold the Ladder down on a trapeze.  Finally, we have the Hold Down Clamps, which slot over the top of the side wall.  They can be bolted into channel or, onto a wall for a vertical installation.

Suspending and Fixing Cable Ladder

One of the most common ways to suspend Unitrunk cable ladder is to create a trapeze using drop rods that support a piece of channel.  The ladder is then placed onto the channel and can be fixed in place with one of the flange clamps mentioned above.  Some contractors also use H-frames for rooftop installations or cantilever arms for running parallel to a wall.

To identify whether a ladder bend is internal or external, see the image below.

Unitunk Ladder


Our three key commitments to you

We’re fully focused on your first-fix M&E needs

We apply our expertise to help you strivers succeed

We provide supply certainty on every order

Product Advice: What is Conlok?

What is Conlok & how does it work?

The Conlok system is an unthreaded conduit system that is designed to speed up installation.  The standard conduit tube is still used, but all the accessories are replaced with the Conlok version.

With the no thread comes many benefits including the fact that it is the only fully galvanised conduit system on the market which means it can offer enhanced corrosion resistance and a much longer lifespan.

Thy system works with a simple grub screw that tightens the grip on the conduit, which removes the need for threading on-site and reduced the risk of injury.

Does Conlok save time & labour costs?

Ask anyone who has used this improved conduit system and they will say the same thing, this system will give you up to 75% time and labour savings.  Because of this, it has been used as the preferred system for many major UK projects.  These sites include the New Heathrow Terminal 2 and the multi-million-pound Francis Crick Institute in London.

And as a side note, you can also use this system with lengths of threaded conduit tube if that is all you have available.

How to install the Conlok System?

Conlok Installation

Cut the conduit tube to the desired length and deburr the end.  Insert the tube length into the required Conlok accessory (similar to the PVC push-fit system).  Then secure the conduit into place with Conlok’s built-in grub screw using the Allen key that is supplied in the box.  Job complete, it couldn’t be simpler!

The video below outlines the installation guide for the Conlok System.

Some of the accessories available in the Conlok range.

This excellent range includes all of the accessories below and can be found on our website.  All accessories come standard in 20 & 25mm.

Conlok Accessories

For more information or any queries please see the datasheet.


share article

Our three key commitments to you

We’re fully focused on your first-fix M&E needs

We apply our expertise to help you strivers succeed

We provide supply certainty on every order

Product Advice: Cutting & tapping fluid

What is Cutting & Tapping Fluid?

There are many benefits to cutting & tapping fluid is a versatile cutting lubricant that makes metal working easier when cutting, tapping, and drilling!

It is a high-performance metal cutting lubricant which can be used on all tough metals including stainless steel. Additives reduce friction and will keep the metal at a balanced temperature to avoid seizing. Dissipates heat which in turn reduces cutting time, metal scrap and downtime. This protects and extends the life of the tool.

During thread cutting apply cutting and tapping fluid by dipping, spraying or brushing it onto the blade or tool.  It can be used with both handheld tools and heavy machinery making it very versatile.

What products Cutting & Tapping Fluid can be used with?

There is a variety of cutting tools that will benefit from the use of cutting & tapping fluid!

These include the below:

Cutting Fluid

Conecut Taper Drill bits, Dart Holesaws, Dart Dry cut saw blade, Second cut taps and Drill Bits.

How to use Cutting & Tapping fluid?
  • Gently shake the aerosol can and spray it in an upright position.
  • Apply the fluid to the cutting tool before starting the cutting operation.
  • Be very cautious when applying the fluid whilst the machine is moving.
What is Cutting & Tapping Compound

Cutting compound is a specially formulated cutting, tapping, and drilling lubricant which will not break down under extreme pressure. A coating of the cutting compound onto the blade will allow the cutting tool to remove the swarf and cut chips of metal with less friction. It requires less effort when cutting even for the hardest metals.  It will also reduce cutting times and you will see an improvement in the surface finish when using this excellent product.

This product has been made to be suitable for all types of steels and ceramics, and even high-tensile steels. It can be removed with all common industrial degreasers and solvent cleaners like our multi-purpose cleaning wipes.


share article

Our three key commitments to you

We’re fully focused on your first-fix M&E needs

We apply our expertise to help you strivers succeed

We provide supply certainty on every order

Product Advice: Lined & unlined pipe clamps

What is the purpose of lined & unlined pipe clamps?

Lined & unlined pipe clamps are the support mechanism for suspending rigid and copper pipes. Suitable for horizontal, overhead or vertical applications against any surface. To ensure that all pipes are securely fixed, pipe clamps are essential as they allow for expansion or movement that may take place.

There are many different pipe clamps, including rubber-lined, hinged, unlined, zinc-plated and stainless steel. They are all designed to suit simple fix-in-place applications and complex scenarios involving pipe movement or heavy loads. Pipe fixing failure is the worst possible situation but can cause significant and costly damage to a building, so it is critical to get it right.

All of our lined & unlined pipe clamps also come with a dual-bossed threaded insert, meaning they can be used with either M8 or M10 threaded rod.

Hinged Clips are available for increased installation speed.

The hinged version of the rubber-lined pipe clamp has a single screw with a quick locking system saving you up to 40% fixing time.  The locking screw can be secured with a simple thumb push, no tools are required!  As a result of the no-tool method, there is minimal rubber compression which results in better absorption of noise and vibration.

Temperature resistance of rubber.

Some applications will require the pipes to have a rubber lining.  This requirement is often due to the material or temperature of the pipe.  Our pipe clamps are all temperature resistant from -30˚ to +120˚.

How to work out the pipe size NB v OB

To work out what size clamp you need, the first thing you will need to do is measure the pipe.  There are two ways to do this, by using NB (Nominal Bore) or O/D (Outer Diameter).  This will give you the diameter of the pipe clamp that you need.

Below is a useful chart to work out which pipe clamps you will need.  Once you have measured the NB or O/D the chart will do the rest of the work for you.

Recommended for speeding up your Lined & unlined pipe clamp installs are our backplates, concrete rod hangers and pre-cut rod range.

accessories for Lined & unlined pipe clamps

For more technical information please see the datasheet on our website!


share article

Our three key commitments to you

We’re fully focused on your first-fix M&E needs

We apply our expertise to help you strivers succeed

We provide supply certainty on every order

Product Advice: Threaded rod hangers

What are Threaded Rod Hangers?

Female rod hangers, also known as tapcons, socket bolts, concrete rod hangers, etc., are self-tapping concrete screws.  They have a  dual bossed threaded socket suitable for both M8 and M10 threaded rods.

Male rod hangers have the same type of self-tapping concrete screws but have a stud on the other end which can be used to thread a pipe clip straight on to.

Both types of hangers can be used in numerous ways mainly for suspending pipes, channel systems, cable containment, and ducting systems from overhead concrete.

Being ETA-approved, they are suited for use in cracked concrete and non-cracked concrete.

What is an ETA approval?

The British standard BS 8539 advises that where an ETA-approved anchor is available for a specific application, it must be specified.

As an ETA-approved anchor undergoes a complex testing programme, against defined standardised testing standards, it can determine the quality and suitability for use in an application.

Suppose an ETA anchor is specified and fitted correctly into the approved application. In that case, it demonstrates that all parties have carried out the required due diligence to reduce the risk of suspension failure.

No site testing is required where the manufacturer provides data for the substrate in question and competent operatives carry out the installation under supervision.

How do you install Rod Hangers?

1: Using an SDS drill bit, drill a 6mm hole to the correct depth stated on the datasheet.

2: Blow out the excess debris with the blow-out pump.

3: Screw in the rod hanger using a 13mm socket. Never overtighten as you will weaken the concrete.

With concrete screws, there are 2 essential rules when installing.  The first thing is the size of the pilot hole.  The second thing is to ensure you don’t exceed the maximum torque value.

What are the benefits of using rod hangers?

There are many benefits to using threaded rod hangers. Designed specifically for overhead threaded rod applications, the self-tapping Rod Hanger offers a quick alternative to traditional drop-in anchors. You can install them in less than half the time which saves the highest cost of on-site Labour! They are the perfect solution for several jobs including installing sprinkler systems and cable trays etc.

For more technical information please see the datasheet on our website!


share article

Our three key commitments to you

We’re fully focused on your first-fix M&E needs

We apply our expertise to help you strivers succeed

We provide supply certainty on every order