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GPC Y ASOCIADOS S.A.

Veléz Sarsfield 201640 Martinez

Buenos Aires

Tel.: +54 (9) 11 5993 8719

info@gpcasoc.com.ar

Horne Technologies cc

PO Box 536

Betty's Bay, 7141

Tel.: +27 (0)76 563 2084

info@hornet.cc

www.hornetechnologies.co.za

FAULHABER MINIMOTOR SA

Zona Artigianale 8, Madonna del Piano

6980 Croglio

Tel.: +41 (0)91 611 31 00

info@faulhaber.ch

Building of FAULHABER MICROMO LLC, Wien, Austria

FAULHABER MICROMO LLC

14881 Evergreen Avenue

Clearwater, FL 33762-3008

Tel.: +1 (727) 572 0131

marketing@micromo.com

www.faulhaberUSA.com

NRC Engineering & Precision Drives Co., Ltd.

17F., No. 890, Jingguo Rd., Luzhu Dist.

Taoyuan City 33858, Taiwan, R.O.C.

Tel.: +886 (0) 3-316-1838

info@nrc.com.tw

www.nrc-precidrives.com

EDEL Teknoloji Sistemleri Sanayi ve Ticaret Ltd.Şti

Folkart TowersAdalet Mah.Manas Blv. No:47B/2809

35530 Bayraklı/İzmir

Tel.: + 90 232 215 08 91

info@edelteknoloji.com

www.edelteknoloji.com

FAULHABER Asia Pacific Pte Ltd.

Blk 67 Ubi Road 1, #06-07 Oxley Bizhub

Singapore 408730

Tel.: +65 6562 8270

info@faulhaber.com.sg

Compotech Provider AP

Gustavslundsvägen 145, 4 tr

167 51 Bromma

Tel.: +46 (0) 8 441 58 00

info@compotech.se

www.compotech.se

MICROPRIVOD Ltd.

56 (bldg. 32), Shosse Enthusiastov

111123 Moscow

Tel.: +7 495 2214 052

info@microprivod.ru

www.microprivod.ru

FAULHABER Polska sp. z o.o.

Ul. Górki 7

60-204 Poznan

Tel.: +48 61 278 72 53

info@faulhaber.pl

Staubo Elektro-Maskin a.s.

Bjørnerudveien 12C

1266 Oslo

Tel.: +47 22 75 35 00

post@staubo.no

www.staubo.no

FAULHABER Malaysia Sdn Bhd

1A-2-01 & 02 · One Precinct · Lengkok Mayang Pasir

11950 Bayan Baru · Penang · Malaysia

Tel.: +60 4 619 2570

info@faulhaber.my

Swiss Amiet Co., Ltd.

W-903, SK V1 Center, 11 Dangsan-ro 41-g

Yeongdeungpo-gu,07217, Seoul

Tel.: +82 (0) 2 783 4774

info@swissamiet.com

www.swissamiet.com

Shinkoh Electronics Co., Ltd.

Tokyo Sales Office, Motor Sales Division8F, REID-C OMORI building, 6-20-8

Minami-oi, Shinagawa-ku, Tokyo 140-0013

Tel.: +81 (0) 3 6404 1003

motor-info@shinkoh-elecs.co.jp

www.shinkoh-faulhaber.jp

FAULHABER Italia S.r.l.

Via Cavour 2

22074 Lomazzo CO

Tel.: +39 0236714708

info@faulhaber-italia.it

Inteltek Automation JV

S.No. 100/5, Ambegaon

Pune - 411046

Tel.: +91 (0) 20 39392150

info@inteltekindia.com

www.inteltekindia.com

Lewenstein Technologies Ltd.

1 Ha'arava St. Givat Shmuel

5400804 Israel

Tel.: +972 3 9780 800

info@l-tech.co.il

www.l-tech.co.il

Electro Mechanical Systems Ltd.

Eros House, Calleva Industrial Park, Aldermaston

Reading, RG7 8LN

Tel.: +44 (0) 118 9817 391

info@ems-ltd.com

www.ems-limited.co.uk

FAULHABER France SAS

Parc d’activités du Pas du Lac2, Rue Michaël Faraday

78180 Montigny-le-Bretonneux

Tel.: +33 (0) 1 30 80 45 00

info@faulhaber-france.fr

www.faulhaber.com

ELMEQ Motor

Passeig Ferrocarrils Catalans 178

Cornellà de Llobregat 08940 (Barcelona)

Tel.: +34 93 422 70 33

marketing@elmeq.es

www.elmeq.es

MOVETEC OY

Suokalliontie 9

01740 Vantaa

Tel.: +358 (0) 9 5259 230

info@movetec.fi

www.movetec.fi

Routech s.r.o.

Dr. Milady Horákové 185/66

460 06 Liberec

Tel.: +420 489 202 971

info@routech.cz

www.routech.cz

Compower ApS

Marielundvej 29

2730 Herlev

Tel.: +45 (0) 44 92 66 20

info@compower.dk

www.compower.dk

Marte Científica e Instrumentação Industrial Ltda

Av Fco Andrade Ribeiro 430

37540-000 Santa Rita do Sapucai, MG

Tel.: +55 (11) 3411 4500

motores@marte.com.br

www.marte.com.br

FAULHABER Drive System Technology (Taicang) Co., Ltd.

Eastern Block, Incubator Building, No. 6 Beijing Road West

Taicang 215400, Jiangsu Province

Tel.: +86 (0) 512 5337 2626

info@faulhaber.cn

FAULHABER Benelux B.V.

High Tech Campus 9

5656 AE Eindhoven

Tel.: +31 (0) 40 85155-40

info@faulhaber.nl

FAULHABER Benelux B.V.

High Tech Campus 9

5656 AE Eindhoven

Tel.: +31 (0) 40 85155-40

info@faulhaber.be

FAULHABER Austria GmbH

Modecenterstraße 22/C89

1030 Wien

Tel.: +43 1 7963149-0

info@faulhaber-austria.at

ERNTEC Pty. Ltd.

15 Koornang Road

Scoresby, VIC 3179

Tel.: +61 (0) 3 9756 4000

sales@erntec.com.au

www.erntec.net

Headquarter

DR. FRITZ FAULHABER GMBH & CO. KG

Daimlerstr. 23

71101 Schönaich

Tel.: +49 7031 638 0

Fax: +49 7031 638 100

info@faulhaber.de

www.faulhaber.com

Jan-Christopher Mohr

Area Sales Manager

Tel.: +49 (7031) 638 158

jan-christopher.mohr@faulhaber.de

Michael Schütte

Area Sales Manager

Tel.: +49 (7031) 638 456

michael.schuette@faulhaber.de

Daniel Brönnimann

Area Sales Manager

Tel.: +41 (0) 79 570 0814

daniel.broennimann@faulhaber.ch

Rolf Leitner

Regional Sales Manager

Tel.: +41 (0) 79 422 3348

rolf.leitner@faulhaber.ch

Rafael Steinemann

Area Sales Manager

Tel.: +41 (0) 79 932 1645

rafael.steinemann@faulhaber.ch

Stepper Motors surgical microscope head set for work on microscopic structures

Working with magnifying glasses and microscopes greatly limits freedom of movement. With magnifying glasses, the distance from the object is fixed, and microscopes are usually cumbersome and impractical. In addition, there is a very limited field of vision with both solutions. This is particularly detrimental in medicine. After all, it is a wellknown fact that nature has very few "standardized" dimensions, and the human body is no exception. Life Optics®, an Austrian high-tech company within this field, has found much sought-after remedy: a state-of-the-art microscope head set. This cutting-edge solution offers unlimited freedom of movement. The system has autofocus functionality, just like modern camcorders. The user does not have to stay at a specific distance – a key benefit compared with magnifying glasses. Furthermore, the two independent lens systems guarantee a three-dimensional field of vision.

In practice

Infinitely variable zoom function, autofocus and parallax control necessitate complex mechanics when it comes to adjusting the head-mountet operationmicroscope. In order to provide a compact, reliable and light-weight solution, Life Optics® teamed up with FAULHABER Group company FAULHABER PRECIstep, specialists in micro-stepper motors. The result: high-precision technology in the smallest possible space. In the basic version, available as Varioscope AF3, users can move freely in a working distance of 300 to 600 mm. The foot-operated zoom function allows infinitely variable magnification from 3.6 to 7.2. The field of vision is 30 to 144 mm, and the pupillary distance can be individually adjusted to each user. The Varioscope® M5  provides an extendible modular optical system. Changeable oculars extend the magnification range, and integrated lighting addresses the problem of shadows. An extended possibility of adjustment for individual eye data is a particularly user-friendly solution. With an optional video camera, procedures carried out by the user can be precisely recorded. Thus, lifeoptics has come up with a scalable solution tailored to a range of different requirements. And, thanks to its ingenious design, the device can be effortlessly transported from one workplace to another.

Stepper Motors surgical microscope head set for work on microscopic structures
The Varioscope® AF3
Stepper Motors surgical microscope head set for work on microscopic structures
Precision in the smallest of spaces

The heart of the mechanics

This highly complex yet portable system relies to a large extent on state-of-the-art micro-stepper motors. Unlike DC motors, stepper motors move on per pulse at a step angle dependent on their specific design. Thus, the number of digital pulses output always corresponds to a defined rotation. As a result, additional linear or angular position sensors are not required. The construction of the drive is smaller and lighter, and it is simpler to control. The Varioscope®  requires two motors for each eye. The AM 1020 at a diameter of 10 mm for the focus setting and the AM 0820 at a diameter of 8 mm for the zoom. The focus drive operates more or less continuously, as it has to compensate for every movement of the head. Vision systems of this size are precision instruments and make particularly high demands on the accuracy of positioning. The problem of inaccuracies due to "play" in the mechanics was solved by FAULHABER PRECIstep by using a spindle with micro-toothing. With a pitch of 0.2 mm and in conjunction with the built-in motors, it allows a resolution of 10 µm. Both focus and zoom are set absolutely backlash-free and without jolts at high resolution. For this reason, the spindle shafts are also given an additional fine polish, a process which is normally only used in precision watches. In conjunction with a special lubricant, the level of friction is reduced considerably and thus also the initial breakaway torque. An additional pre-tensioning on the precision ball bearings by disk springs facilitates zero-backlash movement at torques of up to 1 N, a value which never actually occurs in practice.

Mighty minis

Stepper motors are suitable for many – even highly dynamic – positioning tasks. Thanks to carefully selected materials, these miniature units can accelerate up to 1200 rpm in one step and without overshooting. The use of high-quality NdFeB magnets with superior temperature resistance is the key to their performance. Indeed, the motors are able to provide continuous problem-free operation at 70 °C housing temperature for a period of several days – without interruption. In this case, the coil may actually reach a temperature of 120 °C and the magnet up to 100 °C – without any limitation on service life or effectiveness. A special lubricant that is particularly stable against temperature and aging supports these properties. Such standard motors have even ventured into space – with certification for 4 °K. What’s more, the motors are capable of performing to the highest standards of precision if they have been "out of action" for an extended period of time (performance proven after seven years of non-operation). Another advantage of the micromotor is the use with a 3 V operating voltage. In contrast, traditional DC motors need at least 5 V control voltage for the sensor technology. The "miniatures" can be supplied for operating voltages up to 12 V. The ability to identify and magnify minute structures has become more important than ever before. Modern micromechanical technology with micro-stepper motors provides the ultimate in "freedom of movement". Owing to the compact solution developed by Lifeoptics, sharp three-dimensional vision are guaranteed "on the move" – without any strain on the eyes. Lifeoptics and FAULHABER: pushing back the frontiers of science also there is an important contribution in quality assurance.

Stepper Motors surgical microscope head set for work on microscopic structures
The Varioscope® M5
Stepper Motors
AM0820
Two phase, 20 steps per revolution
Data sheet (PDF)
Key Features
Diameter:
6 ... 66 mm
Length:
9.5 ... 42 mm
Step angle (full step):
18 °
Static torque rating:
0.25 ... 307 mNm
Product details

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