Project
Isando trailer mitres
A trailer yard in Isando needed faster, more consistent mitre cuts on RHS and pipe for trailer chassis. We paired TubeCut R8 with WeldPrep Beam for clean edges ready for welding.
Related cut: trailer chassis fab
Trailer chassis building in Isando means heavy sections and tight deadlines
In Isando, trailer yards deal with a mix of mild steel pipe and RHS for chassis frames, often working outside or in drafty sheds. The team needed to get repeatable mitres on long sections without spending ages on jigs or secondary grinding. Traditional methods left gaps at the joints, wasted time, and made it tough to keep weld prep consistent when orders stacked up. The yard also faced regular shifts in drawing revisions, so any solution needed to let them change up nesting or angles on demand.
Space was tight, and the floor ran a bit uneven near the main bench, which made precise placement tricky with older jigs. They wanted less manual handling to reduce back strain and keep workflow moving, especially on larger trailer batches.
We recommended TubeCut R8 and WeldPrep Beam for rotary tube and edge work
Our team reviewed the typical sections, mitres and join types on their trailer frames. TubeCut R8 handles rotary tube and RHS cutting with programmable angles, which took the guesswork out of mitre cuts and let operators swap between pipe, oval and square sections without refixturing. WeldPrep Beam delivered bevelled edges and clean landings on critical join areas, prepping for strong welds with less touch-up.
We organised the install for a slot near their main bench, with a sturdy floor mount and a basic roller track to help feed longer material. Firdous Bassier from our team ran the first-article session, showing how to set up cut jobs, check the protective window and keep the chiller clear when dust builds up. Safety reminders included the right eyewear for fibre laser work and extraction for zinc and steel fume.
Production settled into a steady pace and less rework after a few months
After about three months, the yard reported fewer fit-up issues and less time spent grinding back welds or chasing poor mitre angles. The team learned to keep an eye on the protective window and swap it when the cut quality dipped, which saved them a lot of headaches. They did forget to check the extractor filter one week and had to run a quick clean before resuming production.
Operators liked the ability to adjust cut angles quickly for spec changes, and the reduction in heavy manual handling meant fewer back complaints. Sheet offcuts from the process were easier to sort and send for recycling. WeldPrep Beam meant less spatter and neater welds, which sped up paint prep in their spray booth.
Lessons for other trailer and chassis workshops
If you’re fabricating trailers or heavy chassis, pairing a rotary tube cutter like TubeCut R8 with WeldPrep Beam for edge prep saves time and reduces strain on your team. Quick angle changes and standardised prep mean less rework and more consistent welds.
Don’t skip the daily checks on extractor filters and the laser head window, small slips there cost more in downtime than people think. Plan your layout so operators can move long sections safely, and use local exhaust with the correct filters for the metal you’re cutting. If you need advice on fitting out your own yard, send us a message through our contact form and bring a few samples for the next available slot at Sunnyrock HQ.
- Use rotary cutting for repeatable mitres on RHS and pipe
- Standardise weld prep to cut down on grinding
- Check extractor filters and protective windows daily
- Plan bench layout for safe handling of long material
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