Mawdsleys BER

31/07/2026

Nothing gets us pumped for Yorkshire Day(which is tomorrow) like a proper brew! Our office tea photo says it all — Yorkshire Tea reigns supreme ☕

On a scale of Pawel to Debs, how do you take your tea?

10/07/2026

𝗬𝗲𝘀𝘁𝗲𝗿𝗱𝗮𝘆'𝘀 𝘁𝗲𝗮𝗺-𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗶𝘁𝗶𝗻𝗲𝗿𝗮𝗿𝘆:
🏌️‍♂️ 18 holes of questionable crazy golf technique.
🍕 Plenty of great food and team catch-ups.
🧠 Zero talk about pump mechanics or motor rewinds.

Safe to say we’ll be sticking to engineering as our day jobs, but a fantastic afternoon celebrating the brilliant team we have here at Mawdsleys. Have a great weekend, everyone!

06/07/2026

𝗠𝗮𝘄𝗱𝘀𝗹𝗲𝘆𝘀 𝗕𝗘𝗥: 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝗰𝗲 𝗶𝗻 𝗗𝗖 𝗠𝗼𝘁𝗼𝗿 𝗥𝗲𝗵𝗮𝗯𝗶𝗹𝗶𝘁𝗮𝘁𝗶𝗼𝗻


Our workshop team recently took this 7.5kW unit through a comprehensive, step-by-step overhaul. Here is a look at the technical process behind the rebuild:

𝗠𝗲𝗰𝗵𝗮𝗻𝗶𝗰𝗮𝗹 𝗥𝗲𝗰𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻: After initial teardown and assessment, the original shaft was found to be bent beyond acceptable runout tolerances. We manufactured and machined a brand-new shaft in-house to exact specifications before press-fitting the core.

𝗖𝗼𝗿𝗲 𝗣𝗿𝗲𝗽𝗮𝗿𝗮𝘁𝗶𝗼𝗻: The armature core was stripped of its degraded insulation and meticulously prepped for rewinding.

𝗖𝗼𝗶𝗹 𝗠𝗮𝗻𝘂𝗳𝗮𝗰𝘁𝘂𝗿𝗶𝗻𝗴 & 𝗜𝗻𝘀𝗲𝗿𝘁𝗶𝗼𝗻:A custom set of coils was wound to OEM specifications, fitted into the slots, and securely banded to withstand high centrifugal forces.

𝗜𝗻𝘀𝘂𝗹𝗮𝘁𝗶𝗼𝗻 & 𝗖𝗼𝗺𝗺𝘂𝘁𝗮𝘁𝗼𝗿 𝗥𝗲𝗳𝘂𝗿𝗯𝗶𝘀𝗵𝗺𝗲𝗻𝘁: The assembly underwent a thorough varnishing process for superior dielectric strength. To ensure optimal brush commutation, the commutator was skimmed, undercut, and dynamically cleaned.

𝗗𝘆𝗻𝗮𝗺𝗶𝗰 𝗕𝗮𝗹𝗮𝗻𝗰𝗶𝗻𝗴 & 𝗔𝘀𝘀𝗲𝗺𝗯𝗹𝘆: The completed armature was dynamically balanced to eliminate vibration-induced stress, followed by final mechanical assembly and testing.

From precision machining to complex rewinds, we ensure your rotating assets operate with maximum reliability and efficiency.

Need a specialist repair or overhaul? Partner with the experts. Explore our full range of electro-mechanical services and get in touch with our team today.

Visit our website to find out more about our services:
https://mawdsleysber.co.uk/services/dc-motor-repairs/

29/06/2026

🎉 𝗚𝗿𝗲𝗮𝘁 𝗻𝗲𝘄𝘀 𝗳𝗿𝗼𝗺 𝘁𝗵𝗲 𝘁𝗲𝗮𝗺 𝗮𝘁 𝗠𝗮𝘄𝗱𝘀𝗹𝗲𝘆𝘀 𝗕𝗘𝗥!

We're proud to announce that we've successfully passed our latest ISO 9001 (Quality Management) and ISO 14001 (Environmental Management) surveillance audits — with zero non-conformities. Auditor's recommendation is maintained. Our systems continued to meet the requirements of the ISO 9001 & ISO14001 Standards.

These internationally recognised standards reflect our ongoing commitment to delivering high-quality engineering services while continuously improving our environmental performance.

A big thank you to everyone at Mawdsley's whose hard work makes this possible — and to our customers for their continued trust in us.

Find out more about it in our most recent blog post below.

https://mawdsleysber.co.uk/mawdsleys-passes-iso-surveillance-audit/

We successfully completed our latest external surveillance ISO 9001 and ISO 14001 audit

22/06/2026

𝗪𝗲𝗹𝗰𝗼𝗺𝗲 𝗕𝗮𝗰𝗸 𝘁𝗼 𝘁𝗵𝗲 𝗧𝗲𝗮𝗺! ⚙️

We are thrilled to welcome a very familiar face back to Mawdsleys BER!

Please join us in giving a huge welcome to our new starter engineer, Simon, who actually began his career right here as an apprentice. Talk about coming full circle!

Simon brings an incredible 30 years of industry experience back to the workshop. He’s worked with some major names over the decades, developing a massive breadth of knowledge across site work, pumps, AC and DC motors, and workshop supervision. Most importantly, he possesses a rare and highly specialized skill that is becoming harder and harder to find in modern engineering: expert motor rewinding. Having someone with his level of technical expertise on the team ensures we can continue delivering the highest standard of specialist care for our clients' AC/DC motors.

A few quick facts about Simon:

🇳🇿 Global Roots: He was born in New Zealand and spent time in Australia before moving to the UK as a child.
🏎️ Outside the Workshop: When he's not fixing motors at work, he's usually working on them at home. He's a massive motorsport fan (regularly catching MotoGP and Touring Cars at tracks like Silverstone) and loves working on his own vehicles.

Welcome back to the Mawdsleys' family!

15/06/2026

𝗦𝗺𝗼𝗼𝘁𝗵 𝗥𝘂𝗻𝗻𝗶𝗻𝗴, 𝗡𝗼 𝗩𝗶𝗯𝗿𝗮𝘁𝗶𝗼𝗻𝘀: 𝗣𝗿𝗲𝗰𝗶𝘀𝗶𝗼𝗻 𝗚𝟭 𝗕𝗮𝗹𝗮𝗻𝗰𝗶𝗻𝗴 𝗼𝗻 𝗮 𝗥𝗮𝗶𝗹𝘄𝗮𝘆 𝗗𝗖 𝗦𝗲𝗿𝗶𝗲𝘀 𝗠𝗼𝘁𝗼𝗿

Ever had a motor sound like it’s trying to shake itself out of the housing? Excessive vibration isn't just a noisy nuisance—it’s a ticking clock on bearing failure and unexpected downtime.
We recently had this 7.5kW DC series motor (380V / 23A) in the Mawdsleys BER workshop. Its primary job is crucial but punishing: driving a large aluminium fan on the drive end to force air through critical rail infrastructure.

Here is a behind-the-bench look at how our engineering team ensures it runs flawlessly.

𝗧𝗵𝗲 𝗖𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲: 𝗗𝘂𝗮𝗹-𝗙𝗮𝗻 𝗗𝘆𝗻𝗮𝗺𝗶𝗰𝘀
This specific armature setup presents a unique balancing challenge:
• Drive End (DE): A heavy, large aluminum fan doing the heavy lifting.
• Non-Drive End (NDE): A smaller, composite cooling fan made of both metal and plastic.
With mixed materials and asymmetric weight distribution, standard "close enough" balancing won't cut it.

𝗧𝗵𝗲 𝗣𝗿𝗼𝗰𝗲𝘀𝘀: 𝗙𝗼𝗿𝗺𝘂𝗹𝗮-𝗗𝗿𝗶𝘃𝗲𝗻 𝗣𝗿𝗲𝗰𝗶𝘀𝗶𝗼𝗻
Our engineers don't guess; they calculate. To get this unit spinning perfectly on our balancing machine, the process requires strict technical discipline:
1. Custom Geometric Profiling: We measure the precise physical dimensions of the armature and fans.
2. Tolerance Calculation: Using industry-standard formulas, we calculate the exact residual unbalance weight tolerances required to hit the targeted vibration grade.
3. Dynamic Spin Testing: The machine spins the assembly, pinpointing exactly where and how much weight needs to be added or corrected.

𝗧𝗵𝗲 𝗚𝗼𝗮𝗹: 𝗔𝗰𝗵𝗶𝗲𝘃𝗶𝗻𝗴 𝗚𝟭 𝗣𝗿𝗲𝗰𝗶𝘀𝗶𝗼𝗻 𝗚𝗿𝗮𝗱𝗲
While standard balancing is often acceptable for general industry, the rail sector demands more. We target a G1 Precision Grade—one of the tightest balancing standards achievable for this class of machinery.

𝗪𝗵𝗮𝘁 𝗱𝗼𝗲𝘀 𝗚𝟭 𝗴𝗿𝗮𝗱𝗲 𝗺𝗲𝗮𝗻 𝗳𝗼𝗿 𝘆𝗼𝘂𝗿 𝗼𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝘀?
• Significantly reduced vibration across the entire RPM range.
• Quieter operation in enclosed or passenger-adjacent environments.
• Maximised bearing lifespan, drastically reducing premature mechanical wear.
• An overall higher-quality asset returned to your fleet.
Need Your Rail Assets Overhauled?
At Mawdsleys BER, we understand that rolling stock and rail infrastructure depend on absolute reliability. From precise dynamic balancing to complete DC motor rewinds, we keep your fleet moving.

Have a motor that's causing vibration headaches? Drop a comment below, send us a DM, or email [email protected]

02/06/2026

𝗜𝘁’𝘀 𝗩𝗼𝗹𝘂𝗻𝘁𝗲𝗲𝗿𝘀’ 𝗪𝗲𝗲𝗸, and at Mawdsleys BER, we want to take a moment to celebrate all the incredible individuals who dedicate their time to making a difference. Communities across the country thrive because of your hard work, and we see and respect the massive impact you make every single day.

We’re especially proud to highlight one of our own team members, Martin, who embodies this spirit of giving back. Every single week, Martin steps away from his marketing duties to volunteer his time with FareShare South West and WECIL (West of England Centre for Inclusive Living).

For those who don't know, FareShare UK is the UK's largest charity fighting hunger and food waste. They take quality surplus food from the food industry—which otherwise would have gone to waste—and redistribute it to nearly 8,000 frontline charities and community hubs. From breakfast clubs to homeless shelters, they help turn environmental waste into millions of nutritious meals for vulnerable people.

WECIL is a fantastic charity dedicated to supporting people with disabilities to live independently and have equal choices in life. Through their invaluable youth development programs and community services, they actively empower individuals to remove barriers and take control of their own futures.

29/05/2026

𝗪𝗵𝗼 𝗶𝘀 𝘁𝗵𝗲 𝘁𝗲𝗮'𝘀 𝗯𝗲𝘀𝘁 𝗳𝗿𝗶𝗲𝗻𝗱?

Of course, the biscuit! 🫓🍪 We wanted to celebrate National Biscuit Day in style and brought some friends to our employees' Friday teas. Now the only question left is, which one should I pick?

Share with us below which is your favourite.