SUGAR MILL GEAR INSTALLATION & ONSITE SERVICES.

• Consultation and inspection of complete drive train including detailed analysis and reporting.
• Laser alignment and installation of the complete drive train.

HOFMANN ONSITE GEAR RECONDITIONING PROCEDURE
Using the Hofmann case hardened pinion as the accurate master and then precision in-situ grinding and using a special chemical etchant to in-situ recondition the worn mating gear.

DRAGLINE & SHOVEL SITE WORK
Hofmann Engineering completely:

• Inspect,audit and condition monitor critical dragline and shovel components.
• Do complete site installation including machining and welding.

ONSITE MACHINING SLEW BEARING

• Design, manufacture and operation of specialized on-site machining equipment to solve your site machining problem.
• Perform large site machining projects to 14m dia.

TRUNNION JOURNAL MACHINING AND REPAIR

• Max dia: 3600mm.
• Remove/replace trunnion roller bearings using oil injection and specialized extraction and bearing installation jigs.
• Scrape in white-metal/bronze bearings.

RE-MACHINING TRUNNION FLANGE FACES

• Max dia: 14000mm.
• Onsite removal & installation of trunnion.
• Onsite refurbishment & machining of mill trunnion.

ONSITE MACHINING OF MILL SHELLS

• Special trunnion journal alignment tooling to insure that both trunnion journals are inline.
• Mill refurbishment.
• Shell crack inspection and weld repairs including stress relieving.

REPAIR TRUNNION BOLT AND LINER BOLT HOLES

• Purpose manufactured tooling for production drilling/boring and tapping.
• Re-bore and sleeve worn liner bolt holes to prevent liner bolts from breaking.

OIL & GAS, RIG EQUIPMENT REPAIRS
ONSHORE & OFFSHORE

• Onsite machining, fitting & laser alignment.
• Gearbox & gears manufactured and repaired.
• Pump and valves installed and serviced.

LASER ALIGNING

• Laser alignments of drive trains for mills, kilns, turbines etc.
• Girth gear/pinion installation.
• Gearbox bore laser alignment inspection.
• Engine block crankshaft bore alignment inspection and rectification.

MACHINING GEARBOX MOUNTING FLANGE

• Flange & bore refurbishment.
• Site inspection and drafting.
• Special purpose machinery designed and manufacture to suit your application.
• Bolt tensioning equipment.

LINE BORING ,WELDING AND ON-SITE MACHINING

• Repair of bucket bores.
• Onsite line boring – engine blocks, ship propeller housings, crushers.
• Line boring and drilling to 3m dia x 6m L.
• Milling of keyways and surfaces.
• Site Welding and heat-treatment.

KILN TYRE REFURBISHMENT BY IN-SITU GRINDING

• Kiln roller and tyre refurbishment by machining and grinding.
• Crusher rolls in-situ grinding to remove uneven wear.