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Here’s some rebuilding process pics of a Komatsu 930E-5 MESABI Radiator. The 3-Row High-Temp Radiator is about complete. The 2-Row Low-Temp Radiator is ready for the tubes to be installed. The MESABI tubes in this one are all aluminum which are relatively delicate in comparison to their copper counterparts. They are lighter, & they are [...]
Here’s some pics of an industrial size two step flywheel we surfaced. We didn't get any pics of it beforehand but someone tried machining it on a lathe which left not only an extremely rough finish but also some deep grooves which we had to grind out. The flywheel bolts to the back of the [...]
Here’s some pics of a cooling package we repaired & rebuilt for an Epiroc Pit Viper 271 Drill Rig. Inside the steel framework are three aluminum oil coolers, an aluminum radiator & two hydraulic driven fans. All three coolers as well as the radiator were cleaned, repaired & pressure tested. The two hydraulic fan motors [...]
Here's some pics of a Caterpillar 16M Grader Circle, Drawbar, Moldboard & Drive Motor we delivered back to one of our mining customers. All four major pieces were separated from each other & completely disassembled for cleaning & inspection. All cracks were properly prepped & welded along with all necessary machine work performed. All the [...]
Here’s some pics of a large aluminum charge air cooler we recored for a Caterpillar 6060 Hydraulic Shovel. The intercooler is so large that it is made up of four individual bar-and-plate cores which are all tig welded together to make one complete unit. We recore a fair amount of aluminum coolers for both liquid [...]
Here’s some pics of a set of 4.0 Ford V6 aluminum cylinder heads we had in for machining. The surfaces of both heads were warped which called for milling the decks, or surfaces, for mating to some new head gaskets. Each head ended up requiring seventeen thousands (.017) of material removal from their surfaces in [...]
Here’s some pics of a Komatsu 830E AC haul truck radiator we picked up for rebuilding. This radiator is a Mesabi with well over a thousand individual radiator tubes. Each tube will be removed for cleaning, inspection & reconditioning if they pass all the criteria for reuse. We'll post more info & pictures on this [...]
Here’s some before & after pics of a John Deere diesel cylinder head we reconditioned. The head is off of a 6101A inline six cylinder engine that powers a 744E loader. One of the intake valves as well as one of the exhaust valves were damaged & needed to be replaced. All the other valves [...]
Here’s some pics of a bunch of Mesabi radiator tubes we're in the process of reconditioning. Some of the Mesabi radiators we get in for rebuilding have aluminum tubes while some of them have copper tubes. We prefer, and highly recommend, the copper tubes as they are much more robust than their aluminum counterparts. Aluminum [...]
Here’s some pics of a Caterpillar 140M Grader Circle we have in for repair & reconditioning. The surfaces that the guide shoes & shims interface with are worn & scored. The surfaces are first machined & then welded up. After all the surfaces are built back up after welding the circle is mounted back on [...]
