For medical device R&D, engineering & quality

When the motor can't fail, every detail decides.

Lamination stacks — the magnetic core of the motor — for blood pumps, surgical robots, implantable drives and many more: miniaturized, ultra-reliable, ready for regulated production series.

Start a confidential feasibility talk Learn more

Surgical robotics — precision drives in modern medical technology

Origin

Swiss precision — developed and produced in Switzerland

Electrical steel — min. thickness

0.05 mm

Roundness tolerance

1/100 mm

Series-proven — 10,000,000+ bonded segments produced · more than 3 decades of Swiss stator & rotor expertise · production and data in Switzerland

The stakes

A motor that runs inside the human body leaves no room for error.

Smaller, cleaner, quieter, more reliable than the general market builds — and it all begins with the lamination stack.

Requirements & answers

Your requirements are extreme. So is the way we build.

Miniaturization

Micro lamination stacks and micro-segments from NO20 / NO10 electrical steel down to 0.05 mm.

Reliability that can't fail

Bonded micro-segments (backlack) — not welded or interlocked. Full strength and quality testing.

Cleanliness & biocompatibility

Higher cleanliness, special materials for implantable applications.

Low heat, noise & vibration

Thermally stable stacks that measurably reduce vibration, noise and waste heat.

Precision that assembles

Roundness within 1/100 mm — a smaller air gap, higher magnetic performance.

Prototype → production series

We deliver a smooth journey from samples to serial production — no hassle. We take care of everything up to perfect series supply.

Applications

Built for the drives inside modern medicine.

Life support

Blood & heart-replacement pumps

Circulatory-support drives — silent, continuous, for life-support applications.

Robotics

Surgical robot drives

Compact joint and instrument motors with the repeatability robotics require.

Surgical

High-speed drills & saws

Electric drives replacing pneumatic tools — quieter, cleaner, controllable.

Ortho / Neuro

Drilling & grinding motors

High-torque miniature drives for orthopedic and neurosurgical instruments.

Dental

Oscillating drives

Precision and low vibration where patient comfort is measured in microns.

Implant

Implantable micromotors

Special materials for implantable applications, higher cleanliness.

…and many new medical-technology ideas. Challenge us.

Technology · BPS®

Bonded micro-segments. Stiffer stacks, cleaner magnetics.

Backlack-bonded lamination — no welds, no interlock losses. Ultra-thin NO20 / NO10 electrical steel down to 0.05 mm, roundness within 1/100 mm. Three decades of expertise.

Discuss your stack

Success stories

What series-proven precision looks like.

Success story · Medical

When it goes inside the body, precision isn't optional.

A customer needed to re-develop an existing micromotor for use as a surgical implant. Highest efficiency and minimal waste heat were essential. SWD realized it with special materials for implantable applications and high-precision processes.

For implantable applications
Highest efficiency
Minimal waste heat

Success story · Micro-drives

More performance in a smaller motor.

A micromotor built from stamped-and-interlocked stacks couldn't deliver the magnetic performance and stiffness the design needed. SWD's bonded micro-segments removed the interlock losses and added rigidity — enabling higher winding force, higher speed and better efficiency in the same tiny footprint.

Bonded micro-segments
Higher magnetic performance
More rigid, faster

Mission

Behind every spec there's a surgeon — and a patient.

That's the standard we build to.

Programme

A partner for the long programs medical demands.

Phase I
Confidential feasibility talk
Under NDA. We ask the hard manufacturing questions early.
Phase II
Concept & material selection
Electrical, quality and process constraints solved together.
Phase III
Prototype, testing & validation
Real parts, measured. Bonded stacks, strength and quality tested.
Phase IV
Production series
Built for 10-year+ lifecycles — at SWD, with in-house developed and unique manufacturing technologies.

Confidential request

Let's talk — under NDA.

Tell us about your device. We'll come back with a concrete technical assessment. Your idea stays yours. Reach us directly at info@swdag.ch.