Westin Drives
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        • Lenze X500 IoT Gateway
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      • HMI >
        • Lenze p300
        • Lenze p500
        • Lenze v200
        • Lenze v800c
        • Lenze v800p
      • Previous products >
        • Lenze 9300 servo inverter
        • Lenze 9300 PLC servo inverter
        • Lenze 9300 vector inverter
        • Lenze 8200 vector frequency inverter
        • Lenze 8200 Motec
        • Lenze SMD inverters
    • Sprint Electric >
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News from Westin Drives

100 years on, quality is still the hallmark of our work

12/1/2021

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Picture
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By Steve Ormondroyd, Workshop Manager

January 2021 marks the start of the centenary year of Westin Drives, a company where quality has long been the hallmark of our work.

Take an electric motor repair. Where some repairers are content to slap on new bearings and send it on its way, we go the extra mile. For example, we have the best diagnostic and test equipment for motors – plus excellent balancing equipment and capacity.

Consider the attached pictures, above, of two bearing housings from the same motor. If the drive end bearing housing is examined closely, punch marks can be seen at 90° around the housing. They were made by a motor 'repairer' in Yorkshire.

The idea is by centre punching the housing, the resulting burr will stop the bearing moving in the housing. But this faulty technique will almost certainly put the rotor out of alignment, leading to premature bearing failure. When our engineers repair a bearing housing, it is bored, sleeved and machined to the correct tolerance according to SKF. 

This motor came to us because of a bearing failure. Considering the previous attempt at a repair, that was inevitable – particularly as the rated speed for this type of motor is 10980 RPM. 

We have now bored and bushed the housings, balanced the rotor, fitted the correct bearings and returned it to the customer. The correctly machined housings may be seen below.
The bearing housings after the repair.

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Shipshape order for large dredge pump

15/12/2020

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Large dredge pump
Large dredge pump open case
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:
  • Mechanical wear on the impeller wear rings and the pump case rings
  • Water erosion and cavitation on the pump casing
  • Any damage present on the impeller.

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.

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Balancing now offered as an independent service

11/12/2020

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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.
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Young apprentice works on 78-year-old fan motor

2/12/2020

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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.

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Control panel upgrade doubles production on stone saws

30/11/2020

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A technical services engineer with control panel
New control panel installed at quarry
Saw at quarry
Two control panel upgrades by our technical services department have doubled production on stone saws at a Huddersfield quarry.

The old system, built in 1969, was obsolete and needed constant operator input to maintain reliable production. 

In collaboration with the site's maintenance manager, we developed a new PLC-controlled system which once setup would run the stone-cutting machines unmanned throughout the night. 

Lenze Automation was chosen with WEG soft starts for the blade and pump motors. The system proved so reliable and efficient that the quarry quickly had a second saw retrofitted in the same way. 

The customer was delighted: "It used to take 2-3 operators, including night shifts, to keep these two machines running. Now it takes just one day operator to run them, and they're getting twice as much production out in the same time."


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WEG appoints us Yorkshire's authorised repair agent

8/9/2020

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WEG logo
The team at Westin Drives are pleased to have been appointed Yorkshire's WEG Authorised Repair Agent. The accreditation was awarded after rigorous inspection and auditing of our work.

We have been an Authorised Distributor for WEG for many years and are always looking to strengthen relationships and customer confidence. 

WEG offer a high quality array of electric motors, variable speed drives and various other controls and we are proud to be working with them and promoting their products with our service to back them up. 


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Why rewinding can be cheaper than replacing

20/8/2020

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An electric motor from a glass-cutting saw which was repaired.
It's a simple truth, but rewinding an electric motor can be cheaper than replacing it. Take for example this motor from a glass-cutting saw.

It is non-standard and to replace it like-for-like would involve a lead time of about 16 weeks and be very expensive. Our engineers, who are expert in rewinding electric motors, had it repaired within a couple of working days at a cost far cheaper than buying a replacement.

These were the problems they faced: 
  • The motor windings had failed
  • The bearing housing was worn
  • The bearings were rough. 

​The stator was rewound, the bearing housing was repaired in our machine shop and the rotor balanced in-house to guarantee the motor will function as it should for years to come.

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Innovative motor upgrade causes a stir

12/6/2020

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The control panel on the paint-stirring motor upgrade
The agitator on the paint-stirring motor upgrade
By Fraser Lynch, Technical Manager
​
Our engineers came up with an innovative solution when they were presented with a paint-stirring machine that could run at only one speed.

The machine's owners needed to diversify their paint offering, but the bespoke, single-phase agitator was not up to the job. A cost-effective way was required to upgrade the unit to run at variable speeds to reduce over-agitation of certain paints and to increase it for others.

​Electrical engineer Adam Daffern, supported by our workshop manager Steve Ormondroyd, proposed an engineering solution, pictured above.

As single-phase motors have limited and expensive vsd controls, a progressive output three-phase motor and single to three-phase IP66 inverter from Invertek was offered. The existing gearbox was retained as it was perfectly serviceable. 

The customer was delighted with this neat and effective solution and was able to adapt to present and future requirements with only 24 hours of down time. 

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Dye house splashes out on motor repair

3/6/2020

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Water pours out of an electric motor in for repair
The rusted control box in the motor
The dye house motor repaired and ready to be returned to the customer
The new replacement for the rusted control box
By Steve Ormondroyd, Workshop Manager

This is the curious story of how we repaired an electric motor that ran on water. The motor, top left, from which water is pouring, was located in a pit under a machine in a dye house and hadn’t run for years. 

The customer wanted to start using the machine again, so the motor was switched on and ran for around half an hour. The stop button was only pressed when someone reported water splashing out of the terminal box.

It turns out the motor had been flooded at some stage and nobody had noticed. How the windings didn’t blow amazed me.

When tested, the windings were in excellent condition, passing all our electrical tests as if the motor had just come out of the factory. We also balanced the rotor, fitted new bearings and ran a final test before giving the motor a fresh coat of paint and returning it to the customer.

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Why our repair engineers never say dye...

22/5/2020

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No corrosion now: The competed repair in our service centre.
A faulty motor received for repair
This was the state of the motor (right) we received for repair from a Yorkshire textile dyeing company. 

​The corrosion was so severe that the nameplate had long since disintegrated, meaning further investigation was required.
 
But this was no simple stripping down. Our engineers needed to grind it apart in order to access the stator windings as all the nuts and bolts were seized.
 
One challenge was to establish the speed at which the motor operated. To do this, our rewinder had to look at the winding and use his years of experience to recognise the coil layout and certain other particulars.

He quickly established beyond doubt it was a four-pole motor (1500RPM). The completed job, with new motor and pulley, was then returned to a satisfied customer.


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Grove Works, St Andrew's Road
Huddersfield, West Yorkshire, HD1 6NA. Phone: 01484 453399
Westin Drives centenary logo

​Westin Drives Ltd is a company registered in England and Wales, number 03933060 | VAT number: 746 540 817 | 
​
Registered address: The Courtyard, Phoenix Mills, Huddersfield, West Yorkshire, HD1 6NG
  • Home
  • About
    • Meet the team
    • Apprentices
    • Accreditations
    • Industries served
    • Testimonials
    • 5S workplace organisation
    • Job Vacancies
    • Privacy & Cookies >
      • Modern Slavery
  • Repairs
    • Electric motors
    • Rewinds
    • Pumps
    • Fans
    • Servo Motors
    • Electronics
    • EX Motors
    • Balancing
    • Electro-Mechanical
  • Technical
    • Control systems
    • Training Courses
    • On-site services
    • Condition Monitoring >
      • Thermal Imaging
      • Vibration Analysis
    • Energy Saving
    • HVAC
  • Products
    • Lenze >
      • Inverters >
        • Lenze i510
        • Lenze i550
        • i550 protec IP66
        • Lenze 8400 Baseline
        • Lenze 8400 StateLine
        • Lenze 8400 HighLine
      • Servo drives >
        • Lenze 8400 TopLIne
        • Lenze 9400
        • Lenze i700
        • Lenze i950
      • Lenze motors >
        • Lenze MF
        • Lenze m300
        • Lenze m500
        • Lenze SDSGA
        • Lenze MCA
        • Lenze MQA
        • Lenze MDxKS
        • Lenze MCS
        • Lenze m850
      • PLC >
        • Lenze c300
        • Lenze 3200 c
        • Lenze c500
        • Lenze C750
      • Gearbox >
        • Lenze g500
        • Lenze g700
        • Lenze mpr-mpg
      • IoT Gateway >
        • Lenze X500 IoT Gateway
      • Software >
        • Lenze Easy Essentials
        • Lenze Easy Advanced
        • Lenze Easy Professional
      • HMI >
        • Lenze p300
        • Lenze p500
        • Lenze v200
        • Lenze v800c
        • Lenze v800p
      • Previous products >
        • Lenze 9300 servo inverter
        • Lenze 9300 PLC servo inverter
        • Lenze 9300 vector inverter
        • Lenze 8200 vector frequency inverter
        • Lenze 8200 Motec
        • Lenze SMD inverters
    • Sprint Electric >
      • Sprint JLX
      • Sprint PLX
      • Sprint 340/680/1220
      • Sprint SL series
      • Sprint XLV series
      • Sprint open chassis-mount DC drives
      • Sprint enclosed DC drives
    • WEG >
      • WEG motors >
        • WEG W22
        • WEG W21
        • WEG W21 modular
        • WEG 22xd
        • WEG W22 WIMES
      • WEG inverters >
        • WEG CFW10
        • WEG CFW100
        • WEG CFW300
        • WEG CFW500
        • WEG CFW700
        • WEG CFW11
        • WEG MW500
      • WEG geared motors >
        • WEG WG20
        • WEG MAS
      • WEG Softstart >
        • WEG SSW05
        • WEG SSW06
        • WEG SSW07
        • WEG SSW08
        • WEG SSW900
    • Pumps and fans
    • DC and slip ring drives
    • Geared motors
  • News
    • Newsletters
  • Contact