By Steve Ormondroyd, workshop manager
This large pump built by the Dutch company Nijhuis Pompen comes from a ship and was sent to us for repair. In operation, it uses its maximum 635 kW power and 1500 M3/H capacity to dredge the sea bed.
It will be dismantled and meticulously inspected to identify any reclamation work required to return its performance to the level of when it was manufactured.
We will be looking out for:
As is routine with pump repairs of this nature, we will replace any seals, gaskets, O rings & bearings. We will also dynamically balance the whole rotating assembly to G6.3.
Meet our new balancing machine. Our previous model was ideal for balancing electric motor rotors and armatures, but more limited on pump and fan impellers.
We previously had to subcontract some impeller balancing, but a significant increase in our pump and fan repair work was enough to justify the investment in a new machine.
With a weight capacity of over two tonnes and a bed length of two metres, it comfortably covers all our workshop balancing requirements and the extra capacity allows us to confidently offer balancing as a service of its own.
Apprentice engineer Mika Everson works on a fan motor manufactured 61 years before he was born.
The motor, from a 1942 industrial extractor, was sent to us for repair by an large engineering firm in Huddersfield.
Inspection revealed that a bearing had collapsed, but the windings were found to be in good condition.
After thorough cleaning the rotor will be balanced to G2.5, new bearings fitted and the motor assembled. Then, after a successful test run, this piece of our industrial heritage will be returned to the customer.