Services de réparation de centrifugeuses à décanter

Sentrimax Centrifuges is an independent MRO provider that repairs and overhauls decanter, tricanter and disc stack centrifuges from 8 to 43 inches in bowl diameter. Every job follows a documented ISO 9001:2015 inspection, repair and delivery process from three North American facilities, covering all major brands including Sharples, Flottweg, GEA and Alfa Laval.

What decanter centrifuge repair covers

A decanter centrifuge separates solids from liquid by spinning a bowl and internal scroll at high speed. The parts that fail first are the ones doing the work: bowl and scroll surfaces erode from abrasive solids, bearings wear from constant radial load, gearboxes lose tolerance, and vibration isolators fatigue. Repair, in the Sentrimax sense, is not a single fix — it is a documented process that takes a worn assembly back to a specification the plant can trust, with the paperwork to prove it.

Sentrimax works on decanter, tricanter and disc stack centrifuges from 8″ to 43″ bowl diameter, using field service technicians for on-site work and remote services where a site visit is not warranted. This page covers the repair process end to end; use the linked pages below for the specific question you came here to answer.

Centrifuge repair sits in a different category from most rotating equipment work because the machine is doing two jobs at once — spinning at high speed and separating abrasive or corrosive material at the same time. A pump or a fan wears from one of those stresses. A decanter centrifuge wears from both, which is why the inspection process below measures precision fits rather than relying on a run-to-failure schedule or a generic maintenance interval.

Field service, remote services, or full shop overhaul

Not every repair needs the same level of intervention. A field service technician can diagnose a vibration complaint, check alignment, or replace an accessible wear part without pulling the unit from service entirely. Remote services can support troubleshooting when a site visit isn’t warranted — walking a plant’s own maintenance team through diagnostics, reviewing vibration data, or interpreting oil analysis results. A full shop overhaul, by contrast, is for anything that requires disassembly of the rotating assembly itself: bowl and scroll work, gearbox rebuilds, and anything needing the precision measurement and balancing equipment only a shop has.

The decision between these three isn’t always obvious from the symptom alone. A vibration complaint could be a loose mount a field technician resolves in an afternoon, or it could be a scroll running out of balance that needs a full teardown. That’s one more reason the inspection stage exists as a formal step rather than being skipped in favor of a guess.

Equipment and brands serviced

The repair process, stage by stage

Every centrifuge that arrives at a Sentrimax facility moves through the same documented, ISO 9001:2015 process. That consistency is what lets a plant compare quotes and reports across jobs, and across years.

1. Inspection et devis. The unit is documented and ID-tagged, oil samples are pulled and sent for third-party analysis, and the rotating assembly is disassembled, steam-cleaned and polished on critical surfaces. A licensed technician completes a 75-point inspection and measures every critical precision fit, with annotated photographs of the full machine and its parts. The output is a quotation package: inspection report, scope of work, required parts, photographs, pricing and an estimated delivery time.
2. Réparation. Once the quote is approved, parts are assembled into a package that meets or exceeds OEM specifications, welding repairs are completed where required, and machined parts are cut to OEM tolerances. The rotating assembly is balanced to ISO G 0.5, the unit is fully reassembled, and a technician runs a detailed post-repair quality control inspection.
3. Livraison. The unit undergoes a full test run with a performance report, then ships through a dedicated broker network. The invoice includes a detailed report of parts, labor and completed analyses, along with shipping confirmation and tracking.

Because timelines depend on parts availability, wear severity and shop load, Sentrimax states an estimated delivery time inside the quote rather than a fixed promise — the same quote that itemises pricing rather than publishing a rate card.

What every job includes

• Fit evaluations against critical precision tolerances
• A detailed, documented inspection report
• Dynamic balancing of the rotating assembly
• A test run before the unit ships

Beyond repair: the full capability set

Repair is the core of this hub, but a decanter centrifuge rarely fails in isolation from the systems around it. Sentrimax runs the supporting disciplines in-house rather than subcontracting them out, which keeps a single quality record across a job that touches more than one shop process.

Sentrimax also handles PLC and HMI programming, VFD troubleshooting and replacement, ETL-certified control panel work, and mobilization into trailer-, skid- or container-mounted configurations. Browse the complete list of Sentrimax repair, machining and controls services for the full capability set.

Industries this hub serves

Decanter and tricanter centrifuges run in municipal water and wastewater treatment, environmental services, dewatering, energy and utilities (ethanol and biofuels, crude oil separation, drilling mud treatment, produced water clarification), food and beverage processing, mining, biotech and pharmaceuticals, chemicals, manufacturing, recycling, pulp and paper, and agriculture. The failure modes differ by application — abrasive tailings wear a bowl differently than dairy solids do — but the inspection and repair process is the same regardless of industry.

Environmental services, biotech and pharmaceuticals, chemicals, manufacturing, recycling, pulp and paper, and agriculture round out the industries Sentrimax supports, each with its own combination of solids characteristics, chemical exposure and duty cycle. Whatever the industry, the 75-point inspection is built to catch the specific wear pattern that application produces, rather than applying a one-size checklist.

Documentation that follows the machine, not just the job

One advantage of a consistent, ISO 9001:2015-documented process is that the paper trail from one repair becomes useful evidence for the next. An inspection report, a set of annotated photographs, and a delivery invoice itemising parts and labor give a plant’s own maintenance records something concrete to reference the next time that unit comes in for service — whether that’s another repair or, eventually, a decision to replace the machine altogether.

Questions to work through before you request a repair

The pages below answer the specific questions a maintenance manager asks before committing a centrifuge to a shop:

• What drives decanter centrifuge repair cost — the variables in a quote, without a published price list.
• What determines a centrifuge repair timeline — why estimated delivery time varies by job.
• Whether to repair or replace a decanter centrifuge — a decision framework using the inspection report as evidence.
• What a centrifuge inspection actually involves — the 75-point process end to end.
• What a centrifuge repair quote should include — a checklist to hold any vendor to.
• How to choose a centrifuge service partner — an evaluation checklist you can apply to any vendor.

How Sentrimax’s process differs from an informal repair shop

Plenty of shops can turn a wrench on a centrifuge. What a documented, ISO 9001:2015 process adds is traceability: a numbered inspection with measured precision fits rather than a technician’s impression, third-party oil analysis rather than a visual check of the drained oil, and a paper trail that runs from receipt of the unit through to the shipping invoice. That difference matters most when something goes wrong later — a documented process gives you a record to check against, an informal one gives you a memory of what someone thinks they did.

It also matters for planning. Because every job goes through the same three stages in the same order, a maintenance manager who has been through the process once knows roughly what to expect from the next one, even though the actual findings, and the price and timeline they produce, are specific to that unit.

Start with an inspection

An inspection report is the foundation of every decision on this page — cost, timeline, repair-versus-replace, and vendor comparison all start from what a 75-point inspection finds. Sentrimax documents that inspection in detail and quotes from it, rather than from a phone estimate.