Reclamation of Miscellaneous and Industrial Equipment

Click for Larger Image

Sheave with damaged keyway - Cast Iron

This cast iron sheave for a lift within a high rise hotel in Sydney had a damaged keyway. The repair involved placing an insert and re-machining a new keyway. The sheave is still in operation with no further problems reported.

Click for Larger Image

Diffuser - Cast Iron

This large cast iron water pump diffuser had snapped into 2 halves during operation. It was rebuilt by using metal stitch repair and put back into operation due to the high costs of downtime. Furthermore, the option of utilising a spare was few months away awaiting spares to arrive out of Germany which was an unacceptable option.

8 metre cast iron casting

This 8 metre cast iron casting was cracking around the bolt holes. White chalk marks indicate the location of the cracks prior to repair. These castings operate in a harsh temperature and chemical environment and were failing on a continual basis. In agreement with the customer, we devised a repair method that addressed the high temperature expansion issues as well as strengthened the casting to eliminate repeated failures. Needless to say that the customer was very pleased with the outcome saving considerable dollars in downtime and continual repair costs.

Click for Larger Image

Gear Wheel - Cast Steel

The gear wheel shown was damaged and would appear to be beyond repair, noting that it is a cast iron casting. This too was repaired successfully and re-assembled back on the drive shaft and put back into service. The successful repair was much to the surprise of the customer that avoided considerable downtime and costs of replacing the gear wheel.

Cast Iron Engine Mount

The engine mount bracket had snapped off and was becoming a repeat failure across a certain class of defence vehicles. The cast iron casting was repaired and strengthened across the fleet of vehicles. The alternative would be to replace the engines and their casing at a significant cost.

Click for Larger Image

Gearbox Casing - Cast Iron

This gearbox casing was in a manufacturing plant where the gearbox ceased and exploded. With this old casting, availability of another gearbox casing was not an option. In order to keep the plant running, the casting was put back together while using very little heat to minimise distortion and misalignment issues. This was repaired successfully using metal stitch repair.

Cast Iron Flywheel

The cast iron flywheel shown experienced a crack through the centre section of the flywheel. The method of repair used was metal stitch or sometimes known chain lock. This repair method has strong bonding qualities and the flywheel is still in operation in country NSW.

Click for Larger Image

Piston - Aluminium

The aluminium piston head for a gas compressor was removed and found to have eroded around the piston ring grooves. This was welded successfully and machined back to the customers specification. The customer was very pleased with the outcome as spares would not be available for another 4 months.

Click for Larger Image

Screw Compressor Repairs - Steel

The tips of the screw compressor were damaged. These were welded using carefully selected, approved and certified welding wire, where the material composition and alloy % form part of the capability to effect a successful repair. These components are worth several hundred thousand dollars that are used in compressing of aerosols. The sealing flights are intricately machined to restore the screws back to original condition.

Click for Larger Image

Compressor Sandwich Plate

The casting shown was inspected and found to have external and internal cracks throughout the casting. It was deemed that the method of repair in this case would be more cost effective to manufacture out of a fabrication, which was sufficiently strengthened than to try and repair the damage casting with numerous cracks throughout the body.