Past Projects
Broken Knuckle Repair
This connecting rod/knuckle assembly was removed from the press with it's knuckle end completely sheared off. We machined off the excess material and prepared a joint for brazing on this ID threaded, cast iron component. We purchased, prepared, and brazed a solid round cast iron piece of stock onto the prepared connecting rod. It was then put in the slotter and the knuckle was machined to specification. The corresponding knuckle seat and wrist pin bores were line bored on our mill to true the centerline and give the assembly it's proper running clearance. The finished components were then fitted in our shop to verify the accuracy of our work prior to installation in the machinery at our customer's facility.
Forging Press Crankshaft and Clutch Hub Repair
This crankshaft was removed from it's machine in two pieces. We supplied and turned a piece of rough stock for butt welding to the crank. After preparing the joint it was preheated and stick welded together. After adjoining the pieces it was placed in our submerged arc welding lathe and build-up welds were laid across the joint and affected diameters. The crank was then normalized and put into our Niles lathe for turning and polishing. After it was turned it went onto a mill table for keyways, facing, retainer bolt hole drilling and tapping, etc.
The clutch hub for this crankshaft came in with both it's inner and outer diameters totally shot. We preheated and stick welded the ID and submerged arc welded the OD in our welding lathe. We then normalized and machined the hub in our 108" vertical lathe. After turning it was put into our slotter for a new keyway. The hub was then jacked onto the repaired crankshaft and a new key was fitted to the keyway. We purchased and installed new bearings into the Bullgear and machined the retainers and spacers accordingly so that the bearings were properly located and running within the parameters of their engineered running clearance. The hub was then fit to the gear and bearing assembly to verify the accuracy of our work. All components were then disassembled and taken to the customer's facility and installed with new clutch plates. The repair was done for half of the cost and in half of the time it would've taken to procure brand new replacement parts.
The clutch hub for this crankshaft came in with both it's inner and outer diameters totally shot. We preheated and stick welded the ID and submerged arc welded the OD in our welding lathe. We then normalized and machined the hub in our 108" vertical lathe. After turning it was put into our slotter for a new keyway. The hub was then jacked onto the repaired crankshaft and a new key was fitted to the keyway. We purchased and installed new bearings into the Bullgear and machined the retainers and spacers accordingly so that the bearings were properly located and running within the parameters of their engineered running clearance. The hub was then fit to the gear and bearing assembly to verify the accuracy of our work. All components were then disassembled and taken to the customer's facility and installed with new clutch plates. The repair was done for half of the cost and in half of the time it would've taken to procure brand new replacement parts.
Crane Cable Drum Repair
This cable drum came to us with it's driven end completely shot. After welding and normalizing it was placed on our mill table and new centers were located and machined into it's ends. It was then put into our Niles lathe and the welded diameters were returned to their OEM specifications.