Decanter Centrifuge Rebuild 1200x400

Decanter centrifuge rebuilds and upgrades

Restore and improve decanter centrifuge performance for sludge dewatering and thickening

If your decanter centrifuge is showing signs of reduced performance due to wear and tear or changing process conditions, it may be time to consider a rebuild. Refurbishing or upgrading your decanter centrifuge can restore, or even improve, sludge thickening and dewatering performance. With decades of expertise in the industry, Alfa Laval can restore equipment to factory OEM specifications, with factory certified welders and mechanics.

A rebuild can be significantly less expensive than a new machine or full rotating assembly. By avoiding expensive engineering or structural expenditures associated with new equipment, you can significantly save time and money while ensuring that you continue to get the process results you need.

Download the service brochure

Typical scope of a complete decanter centrifuge rebuild

From the Sharples models dating back 20+ years, to the modern ALDEC G3 Vecflow design, the deep knowledge and technology portfolio at Alfa Laval allows for many older machines to receive modern upgrades that can dramatically improve performance and efficiency. 

A typical rebuild includes:



  • Bearings
  • Bowl repairs
  • Conveyor repairs
  • Gearbox
  • Wear components (tiles, strips, inserts, etc.)
  • Start-up and optimization (typically quoted as optional)

Upgrades that reduce maintenance and improve performance

Modification Benefit
Electrical back drive upgrade Increase flexibility and process control
Install a modern control panel Enhanced data and control
VecFlowTM feed zone (for thickening applications) Up to 20% less power and reduced polymer
Power plates upgrade Up to 20% energy savings
Connected Services Predictive maintenance and optimized performance


Rebuild project timeline

As with any decanter centrifuge, it will be necessary to perform a rebuild of the rotating assembly as part of the maintenance of the machine.  Alfa Laval performs an extensive examination and assessment to ensure that you understand what is being recommended to allow you to make the best decision for your plant.   A typical upgrade / rebuild process entails:

one.pngSchedule your free equipment assessment and meet an Alfa Laval expert at your site

two.pngYou’ll receive an estimate for disassembly, cleaning and evaluation

three.pngAccept the quote and schedule service

four.pngSend your decanter centrifuge or rotating assembly to one of four Alfa Laval decanter centrifuge service centers across the U.S.

five.pngYour equipment is disassembled and professionally cleaned

six.pngAlfa Laval certified technician evaluates your equipment and provides a firm quote with detailed scope of work

seven.pngAlfa Laval technicians rebuild your decanter centrifuge to original OEM specifications and tolerances

eight.pngYour machine is returned to your site and put into service (Alfa Laval technician on site if requested)

nine.pngStart saving money and improving performance for your dewatering or thickening process

ten.pngProtect your investment with a long-term Alfa Laval service agreement

Need help determining if a rebuild is right for you? Talk to a rebuilds expert today and schedule your free equipment assessment!

What's included? An Alfa Laval expert will visit your site for a full inspection of your equipment. You’ll receive a estimate for disassembly, cleaning and evaluation that includes options to fit your budget and deliver the performance you will most benefit from.

Schedule your free equipment assessment

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Decanter centrifuge service centers

Alfa Laval Fresno service center
3145 South Northpointe Drive #106 
Fresno, CA 93725
Phone: +1 866-253-2528
Learn more and take a virtual tour

Alfa Laval Houston service center
10470 Deer Trail Drive
Houston, TX 77038
Phone: +1 713-934-3160
Learn more and take a virtual tour

Alfa Laval Chesapeake service center
3944 Holland Boulevard
Chesapeake, VA 23323
Phone:  +1 757-487-0437
Learn more

Alfa Laval Greenwood service center
200 South Park Boulevard
Greenwood, IN 46143
Phone: +1 317-889-5100
Learn more

Each rebuild is different and Alfa Laval will work closely with you to accommodate the services you need to ensure that the upgrade / rebuild meets your requirements.


Download the service brochure

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