Maximizing efficiency and precision in your workflow.

Supfina Spiro provides you with an optimal fine grinding solution for the production of highly precise plane-parallel functional surfaces, whatever your needs.

Economical Fine Grinding

with proven Supfina precision

No matter your workpiece properties, the Supfina Spiro offers an ideal fine grinding solution for your most stringent tolerance and material requirements.

We work closely with you to determine your wants and needs and fine a solution based on your budget. Precision without compromise, it’s our lifelong promise.

Spiro line

Key features

  • High drive performance
  • Maximum flexibility for many applications
  • Individually customizable for optimal machining results
  • Reduced tool wear thanks to the low-vibration machine stand and guard
  • High-precision, noncontact measurement control
  • Visual process control for consistently high precision
  • User-friendly and intuitive operation
  • Great accessibility

Spiro F5

Compact design, great performance

The Supfina Spiro F5 was specially developed for fine grinding smaller workpieces that require highly precise plane parallelism. It’s the perfect fit for your needs.

  • 100-program storage
  • Integrated sharpening programs
  • Up to seven process cycles
  • Optional loading table
Workpiece specifications
Wheel diameter445 / 475 mm
Ring width120 / 150 mm
Maximum pressure300 daN
Workpiece diameter4 – 150 mm
Workpiece thickness0,3 – 50 mm

Spiro F7

Fine grinding in large-scale production

The flexible Spiro F7 fine-grinding machine is ideal for creating precise flat surfaces on workpieces made from a wide variety of materials.

  • Memory for 192 programs
  • Rigid machine concept
  • User-friendly, thanks to visual-process control
Workpiece specifications
Wheel diameter720 mm
Ring width200 mm
Maximum pressure1800 daN
Workpiece diameter5 – 220 mm
Workpiece thickness0,6 – 80 mm

Spiro F12

For large workpieces

Our largest Spiro machine is designed to process workpieces with diameters of 6 mm to 420 mm and with special height, parallelism, and flatness requirements, all with high precision and cost-effectiveness.

  • Energy-efficient, low-maintenance drive concept
  • Very good accessibility
  • User-friendly, thanks to visual-process control
  • Flexible connection to different loading systems

Advantages of using a torque motor

  • Energy efficient with very high initial torque
  • No vibration due to geared components
  • Direction change without backlash or loss of motion
  • New machining sequences possible
  • Maintenance-free operation
  • No gear oil required
  • Smaller footprint
  • Maximum rigidity
Workpiece specifications
Wheel diameter1160 mm
Ring width341 mm
Maximum pressure3000 daN
Workpiece diameter6 – 420 mm
Workpiece thickness1 – 100 mm

A range of options

Manual to fully automatic

We know your workflow is unique to your processes. Our wide range of loading and unloading options can meet any stringent needs.

From short cycle times to reduce downtime, short set-up times and flexible adaptation to different feeding systems and visual process control, Supfina finds your perfect solution for all these tasks.

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Modern Controls

The user-friendly and intuitive operation, combined with visual process control, ensures consistently high precision.


The utilization of a carrier exchange tool is just one of the many ways to improve efficiency automation in the Spiro.

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Loading Tables

The Spiro F5 fine grinding machine can include the use of an optional loading table for manual loading and unloading purposes.

Case Study

Supfina recently partnered with The Timken Company with their complex automation needs, customizing a Spiro F5 with material handling robotics.

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Case Study

the Swiss company MPS Micro Systems AG was looking for an opportunity to rapidly .expand its capacity in the manufacture of micro components without compromising on processing quality

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Case Study

With the newly delivered Supfina Spiro F7 fine grinding machine, the precision parts specialist URBEN + KYBURZ AG, Switzerland, is expanding its product range and competitiveness.

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Cutting Edge Technology

No matter the material, the job can be done to the most stringent requirements.

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 See which Spiro fine grinding machine works for you, complete with technical information and specs.

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Watch the Spiro fine grinding line in action.

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Are you looking for the right and economical solution
for your manufacturing processes?

Talk to us!

+1 401-294-6600
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"Our experience shows that we have made the right decision in working with Supfina."

Lutz Olbertz, Manager Production Turned Parts of WMF

TDK Electronics

"Terrific job! - We are delighted with the partnership approach and
solution-oriented service from one single source.“

Herbert Lux, Development Engineering, TDK Electronics

“The Spiro F5’s ergonomics and user-friendliness are evident on a daily basis.
Quick and easy settings ensure versatile use of the machine.”

Eric Beeler, Surface Treatment Manager at MPS AG

“With the Spiro, we are entering a new level of manufacturing — both in terms of reproducible surface quality and in the cost reduction that results from process-chain optimization and batch-mode machining.”

Rolf Urben, Managing Director at URBEN + KYBURZ AG

Supfina Grieshaber GmbH & Co. KG

Schmelzegrün 7
77709 Wolfach / Germany
+49 7834 866-0
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Supfina Machine Company, Inc.

181 Circuit Drive
North Kingstown
RI 02852-7439 / USA

+1 401-294-6600
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Engineering with High Precision   xing

Superfinishing · Flat Finishing · Fine Grinding · Double-Disk Grinding · Automation · Services

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