Electric Motor Modifications in Australia

Not every motor fits the job straight off the shelf. That’s why electric motor modifications are a critical service for Australian industries needing specific performance, mechanical compatibility, or equipment integration. At BCB Sales & Service, we specialise in custom motor changes, tailored motor adaptation services, and complete industrial motor mods that breathe new life into existing systems—or get a new setup running smoothly from day one. 

With decades of hands-on experience, our Melbourne-based workshop offers bespoke motor customisation services, backed by detailed knowledge of electric motors, fan systems, heating units, and more. From bracket rewelding and shaft resizing to fan blade transfers and reconditioning, our in-house team builds and modifies electric motors for long-term reliability. 

What Are Motor Modifications?

A motor modification involves altering the motor's structure or components to suit a specific installation or function.

This may include:

• Mounting arrangement changes (foot to flange, vice versa)
• Bracket reconfiguration or custom welding
• Shaft alterations for special couplings or belt drives
• Transplanting fan wheels or blowers to new motors
• Respraying and cosmetic restoration
• Repurposing spare parts from existing motors
• Combining elements from multiple motors into one working system

 These modifications are especially useful when:

• Replacement motors are discontinued
• The system’s ducting or mounting is non-standard
• A specific shaft length or keyway is required
• Downtime must be minimised
• Budgets require component reuse 

Why Motor Customisation Is So Important in Industry

Australian commercial and industrial systems often include legacy equipment, imported hardware, or purpose-built assemblies. Off-the-shelf electric motors may not precisely match these configurations. 

Instead of re-engineering the entire machine or upgrading at great cost, motor customisation offers a faster, more affordable, and more sustainable alternative. 

We regularly support businesses in:

• HVAC
• Wood heating
• Combustion systems
• Manufacturing and fabrication
• Food processing
• Automotive and transport
• Mechanical ventilation and extraction 

With BCB Sales & Service, you get tailored solutions that slot right into your system without the delays or frustration of sourcing rare replacements. 

Our Full Range of Motor Modification Services

Whether you're retrofitting a motor into an older furnace or designing a new commercial fan system, BCB offers the skillset to deliver. 

1. Bracket Rewelding & Mounting Modifications

If the new motor casing or size differs from the original, we remove old brackets, reweld them with precision, and reinforce them to maintain structural integrity. This ensures seamless integration into existing systems without requiring retooling of your machinery. 

2. Shaft Adaptation

We can cut, extend, rekey, or machine motor shafts to meet specific installation needs, especially in belt-driven systems, axial fans, or blower assemblies. Custom shaft lengths and diameters are common in furnace blowers, commercial fans, and wood heater systems. 

3. Fan Blade or Wheel Transfer

BCB’s team can carefully remove impellers, blowers, or fan blades from older motors and mount them onto replacement motors with matching performance specs. We re-centre, rebalance, and test the assembly to ensure smooth operation at full load. 

4. Housing & Frame Conversions

Need to convert a foot-mounted motor to flange-mounted? Or match a particular mounting bolt pattern? We fabricate or adapt mounting plates, custom footings, and frames to match your application precisely. 

5. Cosmetic Restoration & Painting

We clean, repaint, and recondition motors to suit both function and form. Whether for industrial use or showroom displays, a restored motor looks the part and resists further corrosion or heat damage. 

6. Custom Assemblies

Sometimes a full system adaptation is required. We can combine new motors with salvaged components, such as terminal boxes, fan housings, wiring looms, or switches, to create a fully functioning, hybrid solution ready for installation. 

Why Choose BCB for Industrial Motor Mods?

• Over 50 Years' Experience: Trusted since 1972, we understand motors inside and out.
• Fully Equipped Workshop: All modification work is done in-house for faster turnaround.
• Stock On Hand: We carry a wide range of new and second-hand motors, fan wheels, and accessories.
• Sustainable Solutions: We strive to reuse parts whenever possible, thereby saving money and minimising waste.
• Testing and QA: All modified motors undergo performance testing and safety checks before dispatch. 

We don’t just modify—we rebuild your confidence in your system’s performance. 

Our Process: How to Get Your Motor Modified

1. Send Us the Details: Please email or call with your motor specifications, system requirements, and photos, if possible. We'll provide an initial assessment and ask any clarification questions.
2. Drop Off or Ship In: Bring the motor to our workshop in Clayton South, VIC, or ship it to us. If you have additional components like fans or brackets, include them too.
3. We Quote & Consult: We inspect the motor and suggest the best solution. You'll receive a detailed quote for parts, labour, and turnaround time.
4. We Modify, Test & Finish: Our team performs the required modifications and tests the unit for electrical safety, balance, and performance under simulated loads.
5. You Reinstall With Confidence: Receive your custom-modified motor, install it back into your system, and keep moving forward without disruption. 

Ready to Get Started with Electric Motor Modification?

Contact us at BCB Sales & Service today to discuss your electric motor modifications and custom needs. Our experienced team is here to support Australian industries with the motor adaptation service they can count on. Call (03) 9546 3833, send an email to sales@bcbsales.com.au, or submit an online enquiry. 

FAQs About Motor Modification Services 

What types of motors can be modified?

We work with most standard industrial and commercial motors, including single-phase, three-phase, shaded pole, and fan motors. If you're unsure, just ask! 

Do you modify new or used motors?

Both. We can modify new motors to suit your system or repair and adapt older units where feasible. 

How long does a typical modification take?

Simple modifications may be turned around in 1–3 business days. More complex jobs may require 5–10 days. Urgent jobs can be prioritised—contact us for availability. 

Is it cheaper to modify a motor than buy new?

Often, yes. Especially if custom brackets or legacy systems are involved. You also avoid the risk of incorrect sizing or performance mismatches. 

Do you test the motors after modification?

Yes. All motors are tested for performance, alignment, and electrical safety. For fan motors, we also check balance and rotational accuracy.