Making a NEW Trunnion for BIG D11T Bulldozer! | Machining & Welding

Watch us transform a chunk of steel plate into a critical component for a giant bulldozer cylinder! We’re making a new trunnion for a D11T bulldozer’s blade lift cylinder barrel. We start with a thick piece of flame cut 350 grade steel plate and transform it on our trusty lathe. We start by turning the ends into spigot pins, the crucial connection points for the yoke bearings. Then we bore out the centre to the precise size for fitting over the barrel. We then show the fitting of the new trunnion on to our newly machined cylinder barrel before welding it out with dual shield wire. What do you think of this transformation!?

In this video we are using:
- Hafco TM-1740G Centre lathe
- Hafco BM-63VE Milling machine
- WIA 500i Weldmatic welder

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We're a down-to-earth real life machining and fabrication workshop in Australia. We specialise in helping business in mining and earthmoving to keep their machines running smoothly. We love working on broken parts and the bigger the better! We upload new videos every week showcasing machining, welding, line boring, honing and all the other awesome stuff that goes down in our workshop. Learn how we tackle different projects and see the satisfaction of creating something useful. Subscribe to stay updated on our latest jobs and projects! Follow us on Patreon for even more content and behind-the-scenes glimpses or find us on Tiktok, Facebook and Instagram for a chance to connect with us.
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