A state-of-the-art scanner for taking digital impressions for dental prosthetics combines extreme precision, high dynamics and minimal installation space tolerances in the smallest of spaces.
One thing is clear: if you want to play in this class, you need more than standard components.
Eichenberger supplies the key element with the miniaturized Carry 4×1 ball screw drivethat makes the difference - for highly dynamic positioning, compact design and absolute reliability.
Digital dentistry - automation meets individualization
Dental technology was long regarded as an analog craft. But digitalization has long since arrived:
Today, CAD/CAM technologies and 5-axis scanners make it possible to Completely digital fabrication of dentures - no plaster casts, no waiting time, no uncertainty.
The claim:
✔ Scanning instead of molding
✔ Immediately visible, immediately processed
✔ Precise, hygienic and economical
The heart of the system:
A 5-axis scanner with robotic arm that scans impressions, partial and full jaw models in less than a minute - including the palatal roof. Smooth movement in all axes requires a precise, miniaturized linear guide - This is where the Carry ball screw drive comes into play.
Carry 4×1 ball screw drive - precision in the smallest dimension
The used Carry 4×1 ball screw drive is specially designed for high-tech applications in miniaturization:
- Diameter 4 mm
- Pitch 1 mm
- Cold rolled for perfect surface quality
- Cleanroom-compatible, durable, precise
The geometry has been slightly adapted - the result is a miniaturized drive element which, despite its small design transmits high forces preciselyeven with rapid changes of direction and continuous load.
From the special solution to series production - a leap in development
What began as a one-off production is now a Production-ready element for digital dental technology. The Carry was developed, tested as a prototype and made ready for series production in a very short space of time - inclusive:
✅ Tailor-made nut
✅ In-house induction hardening for high surface hardness (700-800 HV5)
✅ Fully automated, robot-assisted production line
✅ Quality inspection at every step
What sets us apart: Everything from a single source - from development and toolmaking to final production.
Why nothing is "standard" in dentistry in particular
The demands placed on drive elements in digital dental technology are enormous:
🔹 Cleanroom-compatible & hygienic
🔹 Minimal thermal load (no overheating in continuous operation)
🔹 Absolute reproducibility
🔹 Minimal deviation even at high speeds
🔹 Low space requirement with high load capacity
This shows that The right ball screw drive is not just a component, but an enabler for sustainable technology.
Conclusion: Precision starts small - and changes entire industries
What looks like a small component is actually a driver of innovation: the Carry 4×1 miniature ball screw drive brings movement to an industry that was analog for a long time - and is now one of the digital pioneers.
Are you developing a compact appliance with high demands on hygiene, speed and precision?
We don't just have the right thread - we have the right solution. Developed in Switzerland, manufactured for the future.
