Mail-in dental handpiece repair — free prepaid label, free estimate, 6-month warranty

Bien-Air Handpiece Repair

Tornado and Bora turbines, EVO.15 and Nova contra-angles, MX-series electric motors — Swiss precision deserves a bench that measures, not guesses.

Every Bien-Air is rebuilt to spec and speed-tested before it ships back, nationwide by mail-in from Colorado Springs. You get a written quote before any work begins, and nothing moves forward until you approve it.

Bien-Air at a Glance

  High speed turbine rebuilds — from $129

  Low speed & attachment rebuilds — from $145

  Electric handpiece rebuilds — from $229

  Free written quote before any work

  2–3 business days on the bench

  6-month parts & labor warranty

View full repair pricing →

Why Bien-Air Owners Trust Us

Bien-Air has built handpieces in Bienne, Switzerland since 1959, and it shows in every one that reaches our bench: tolerances tighter than almost anything else in the operatory, sealed heads that keep autoclave steam out of the bearings, and electric attachments machined so precisely that a few microns of gear wear is the difference between silk and chatter. That is exactly why a Bien-Air deserves better than a generic parts-swap.

We rebuild them the way they were built — measured, matched, and speed-tested, with quality replacement parts selected for your specific model. Whether it is a Tornado that has lost its edge, an EVO.15 running warm at the head, or an MX motor that stutters on startup, your handpiece is part of 23,000 repairs completed for 400+ dental practices nationwide — and the only pair of hands on it belongs to the technician who answers the phone.

Bien-Air Models We Service

Tap a column header to sort. If your model is not listed, it does not mean we cannot fix it — Bien-Air’s catalog runs deep and the badging changes over the years.

ModelWhat Usually FailsWhat the Rebuild Includes
Tornado & Tornado SBearings and push-button chuck after heavy daily useFull turbine rebuild — bearings, O-rings, chuck inspected, speed-tested
Bora & Bora LBearing whine and spray drift as seals ageTurbine rebuild with spray ports cleared and pattern-proven
EVO.15 1:5Gear-train wear — felt as heat and chatter at the headGear service with worn bearings and seals replaced as needed
Nova & CA 1:5Chuck grip and head bearings under electric torqueHead rebuild to spec, chuck inspected
CA 20:1 L (implant & surgical)Low-speed gear wear and irrigation path clogsGear overhaul, new seals, irrigation path cleared
MX2 & MCX MotorsStartup stutter, torque fade, worn internalsElectric motor overhaul, tested under load before it ships
Older & discontinued Bien-AirParts availability questionsSend it in — the free quote tells you if it is worth rebuilding

Most Bien-Air turbines land under our high speed handpiece repair service, the EVO and Nova attachments and MX motors under electric handpiece repair, and the CA 20:1 under low speed and motor repair. Not sure which generation you have? Send the model number through our contact page and we will identify it before you ship.

Common Bien-Air Issues We Fix

Tap the markers on the handpieces to see where a Bien-Air wears first — then hover any card below for how we actually fix it.

Turbine Bearings

The whine that gets a little louder every week.

Bearings as a Matched Set

Tornado and Bora bearings go in as a matched set with new O-rings, then the turbine is speed-tested against spec — never spot-swapped.

Push-Button Chuck

Burs seat fine but creep or walk under side load.

Grip Checked to Spec

Chuck grip is measured on every Bien-Air; a new chuck comes with the new turbine on the $159 repair, so the bur holds its line at full torque.

Gear-Train Wear

An EVO or Nova head running warm, rough, or loud.

Rebuilt Where It's Worn

1:5 gear trains are inspected under magnification, and the worn gear is replaced with its bearings and seals together — half-measures do not survive electric torque.

Spray & Irrigation

Water missing the bur, or a 20:1 line that clogs mid-case.

Cleared & Pattern-Proven

Ports and irrigation paths are cleared and the spray pattern is verified under working pressure before anything ships back.

Dim Fiber Optics

A light field that has faded to a yellow glow.

Assessed, Not Guessed

Optics are assessed on every fiber-optic model — wear is called out in the written quote, not discovered chairside.

MX Motor Trouble

Stutter on startup, or torque that fades mid-prep.

Overhauled & Load-Tested

MX and MCX motors are overhauled and run under load — free-spinning on the bench proves nothing, so we test the way you cut.

Bien-Air Repair Pricing

Most Common

High Speed Turbine Rebuilds

From $ 129
Tornado and Bora turbine rebuild: new bearings and O-rings, chuck inspected, then a speed test on the coupling.

Low Speed Rebuilds

From $ 145
CA 20:1 and straight attachments: gear service, new seals, irrigation path cleared, tested under load.

Electric Handpiece Rebuilds

From $ 229
EVO.15, Nova and MX motors: basic rebuild replaces the shaft gear or head gear and bearings, load-tested.

Every quote includes parts, labor, cleaning and a full performance test — and every repair carries our 6-month parts and labor warranty. Nothing goes forward until you approve the written quote.

We rebuild every major handpiece brand on the same terms and the same bench. If your operatory runs more than one, see our KaVo, Midwest, Star, NSK, A-dec and W&H, Lares, Beyes, Brasseler, Young and Impact Air 45 handpiece repair pages, or browse our dental handpiece repair overview.

How to Send Us Your Bien-Air Handpiece

Five steps, and only the first two are yours. Your part takes minutes; ours takes 2–3 business days on the bench.

Step 1 — you

Book it

Book on our Book My Repair page — a prepaid shipping label reaches your inbox the same business day.

Step 2 — you

Pack it

Sterilize and bag the handpiece, bubble wrap it in a sturdy box, and drop a note about the symptom.

Step 3 — we

Quote

Free inspection under magnification, then a written quote — nothing goes forward until you approve it.

Step 4 — we

Rebuild

Cleaned and rebuilt to Bien-Air spec, then speed, torque and spray checked under working pressure.

Step 5 — we

Ship Back

Back by UPS or FedEx — 2–3 business days on the bench, 6-month parts and labor warranty in the box.

Frequently Asked Questions

Is it worth repairing a Bien-Air instead of replacing it?

Almost always. A Bien-Air is one of the most expensive handpieces in the operatory to replace and one of the most rewarding to rebuild — the body and internals are machined to last decades. A rebuild at a fraction of replacement cost returns it to spec, and the free written quote tells you exactly where you stand before you decide.

Do you work on Bien-Air electric attachments and motors, or just turbines?

Both. Tornado and Bora turbines get full turbine rebuilds, and the electric side — EVO.15, Nova, CA attachments and MX-series motors — is a growing share of our bench. Electric rebuilds run from $229 — the basic rebuild covers the shaft or head gear and bearings — and every one is tested under load before it ships.

Do you use genuine Bien-Air parts?

We use quality replacement parts matched to your specific model — the same approach on every brand we service. Parts have to meet the tolerance the handpiece was built to, and every rebuild is measured and speed-tested against spec before it leaves the bench.

My EVO.15 runs hot at the head — can I keep using it until it fails?

Better not to. Heat at the head of a 1:5 means the gear train or bearings are wearing, and running it to failure turns an affordable gear service into a much bigger rebuild. Set it aside and send it in — catching it early is what keeps the quote small.

What does the warranty cover, and how long will I be without it?

Every repair carries a full 6-month parts and labor warranty covering the components we replaced and the labor to fit them. Bench time is 2–3 business days plus carrier transit each way on the prepaid label — about a week door to door for most practices. If a handpiece cannot be economically repaired, there is no repair charge; a flat $29 covers shipping and handling and it comes back to you.

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