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Published: 09/10/2018

How to Cut Stainless Steel Raceway and Fit a Coupling

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It is important to note the below instructions are for guidance purposes only.

Cutting a length of Stainless Steel Raceway

During the installation of Stainless Steel Raceway, it may be necessary to cut the product to comply with fitting restrictions. This is a simple process which can be carried out on-site.

Tools and Protective Equipment Required

To cut Stainless Steel Raceway, the following tools and protective equipment will be required:

  • Hacksaw
  • Vice
  • Cutting fluid – e.g. ROCOL
  • Tape Measure
  • Pencil
  • Sandpaper / Engineers' File
  • Eye Protection
  • Gloves

How to cut a raceway length

In order to successfully cut Stainless Steel Raceway:

  1. Hold the raceway securely in a vice.
  2. Using a tape measure and pencil, mark the raceway at the required length.
  3. Put on your Eye Protection & Gloves.
  4. Using a hacksaw and copious amounts of cutting fluid, cut the raceway taking long slow strokes to prevent the build up of heat due to friction.
  5. To reduce the risk of personal injury and damage to cables, it is recommended to remove any burrs, caused by the cutting, with sandpaper or an engineers' file.
This technique applies to both the base and cover of the raceway.

Drilling the coupling & cover fixing holes

Once the raceway cover and base have been cut, new holes will need to be drilled to accommodate a new flat cover raceway coupling kit or, in the case of 15° Apex Cover Raceway, a 15° apex cover raceway coupling kit and cover fixings, in order to continue the flow of the raceway system:

Tools and Protective Equipment Required

To drill Stainless Steel Raceway, the following tools and protective equipment will be required:

  • Vice
  • Cutting fluid – e.g. ROCOL
  • Tape Measure
  • Pencil
  • Power Drill
  • A high quality Drill Bit
  • Center Punch
  • Sandpaper / Engineers' File
  • Eye Protection
  • Gloves

How to drill a raceway length

Coupling holes should be drilled using a 7.5 mm ∅ drill bit and located 22.0 mm from the end of the base (to the center of the hole).

Cover fixing holes should be drilled using a 8.5 mm ∅ drill bit and located 19.0 mm from the end of the cover (to the center of the hole).

  1. Mark the raceway where the coupling holes are required.
  2. Use a center punch to prevent the drill bit slipping and scratching the material.
  3. Using a power drill at a slow speed, with copious amounts of cutting fluid, drill through the raceway.
  4. Once the raceway has been drilled, remove any burrs using sandpaper or an engineers' file. This will reduce the risk of personal injury and damage to cables.
It is important to note that if a high drill speed were used the Stainless Steel would overheat, causing it to harden and making it difficult to re-drill. It would also change the appearance of the steel and could damage the drill bit.

Additional Coupling Kit

An additional coupling kit may need to be purchased in order to continue the flow of the raceway system once it has been cut. Our coupling kits comprise of:
  • 1 x coupling with nuts and screws
  • 1 x patented cover plate
  • TB1 or TB2 turnbuckles to suit the size of the raceway length
Coupling kits are used to join two pieces of raceway together. The U-shaped coupler is placed inside the raceway, across the join, and secured with the screws and nuts provided.
If you require any more information to assist you with all aspects of your installation, please don’t hesitate to contact us by calling Toll-Free 1-888-774-4550 (+1 917-717-7445) or by emailing usa@electrixinternational.com.

Save time and money with our Custom Shop

If you have a number of lengths that require cutting or drilling, why not contact our Custom Shop Team who will be able to research and accommodate your needs, resulting in reduced on-site labor and installation costs.

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