Machine tools: High dynamics and accurate positioning

Higher cutting performance, rising spindle speeds and higher precision: these are the essential trends in machine tool industry. For many manufacturers the focus of development is on rising speeds. Apart from that digitization has got strong impacts: latest generations of machinery record and process large data volume and can be integrated in superordinate IT systems to a great extent.  

At the same time there is increasing competitive pressure in the core segments caused by new technologies (keyword: additive manufacturing). Another influential factor is the future development of automotive industry: now as before a significant share of machine tools in the field is used for the production of I. C.-engines.

Couplings for machine tools

In 1980 we introduced the backlash-free and torsionally flexible jaw coupling ROTEX GS to the sophisticated industry. In 1994 the coupling system ROTEX GS P developed by KTR was included in the standard for stub spindles DIN 69002. In addition the product portfolio comprises the backlash-free and torsionally rigid coupling types RADEX-NC with steel lamina and TOOLFLEX with metal bellow. To comply with the high demands on positioning drives and the drive of main spindles, we develop our range of couplings continuously. Part of the current innovations is ROTEX GS HP. This trendsetting development is suitable for such high speeds that the market for such couplings yet has to be established.

Clamping elements for machine tools

Our external clamping sets CLAMPEX allow for a backlash-free and non-positive shaft-hub-connection. Clamping is made via integrated screws used for non-destructive releasing of clamping elements for machine tools. Subject to their benefits CLAMPEX clamping elements are inter alia preferred as an alternative to feather key connections.



Our product range for Machine Tools

0.2 - 5,850 Nm

ROTEX® GS

Low-priced, easy and quick assembly

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260 - 3,017,100 Nm

CLAMPEX® KTR 100

Suitable for large shaft and hub tolerances

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0.3 - 1.0 Nm

COUNTEX®

For measuring and control technology

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3 - 3,100 Nm

KTR-SI Compact FT

Load-separating safety coupling as a flange type

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up to 810 Nm

KTR-STOP NC

Clamp system for cylindrical shafts and piston rods

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100 - 725 Nm

ROTEX® GS HP

Very high speeds, for example main spindle drives and test benches

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2 - 550 Nm

SYNTEX® NC flange type

Safety clutch in flange type

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0.1 - 15 Nm

TOOLFLEX® Mini

Miniature bellow-type coupling - backlash-free and easy to assemble

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5 - 1,900 Nm

CLAMPEX® KTR 105

Compact design

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2.5 - 2,000 Nm

RADEX®-NC DK

Double-cardanic double-jointed coupling

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1 - 600 Nm

TOOLFLEX® M

Compact design and easy to assemble

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10 - 2,320 Nm

CLAMPEX® KTR 130

Easy assembly/disassembly

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10 - 836 Nm

CLAMPEX® KTR 131

Easy assembly/disassembly

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7.5 - 655 Nm
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0.9 - 825 Nm

ROTEX® GS DKM

Double-cardanic, high radial displacement

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12.5 - 655 Nm

ROTEX® GS ZR1

Cardan shaft, bridging shaft distance

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12.5 - 405 Nm

ROTEX® GS ZR2

Cardan shaft, intermediate pipe made of steel variable in length

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Overload protection up to 3,100 Nm

KTR-SI Compact with backlash-free ROTEX® GS

Load-separating safety coupling with backlash-free ROTEX® GS

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0.2 - 19 Nm

ROTEX® GS miniature coupling

Miniature coupling - sizes 5 to 16

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2 - 550 Nm

SYNTEX®-NC with ROTEX GS

Safety clutch with backlash-free servo-clutch

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1 - 160 Nm

TOOLFLEX S

Compact and easy to assemble

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2.5 - 2,000 Nm

RADEX®-NC EK

Single-cardanic single-jointed coupling

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0.7 - 405 Nm

ROTEX® GS Compact

Compact elastomer coupling

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2 - 550 Nm

SYNTEX®-NC with TOOLFLEX

Safety clutch with torsionally rigid metal bellows clutch

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35 - 340 Nm

TOOLFLEX® KN

Integrated clamping system with taper clamping ring hub

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2 - 215,000 Nm

CLAMPEX® KTR 150

Small dimension, well-priced

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21 - 4,500 Nm
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15 - 340 Nm

TOOLFLEX® PI

For quick and frequent assembly/disassembly

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530 - 68,000 Nm

CLAMPEX® KTR 200

Clamping set with a wide range of applications

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12.5 - 4,500 Nm

ROTEX® GS P acc. to DIN 69002

High precision, standardised stub spindles

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35 - 340 Nm

TOOLFLEX® CF

Metal bellow-type coupling with flange connection

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320 - 48,800 Nm

CLAMPEX® KTR 201

Clamping elment with a wide range of applications

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35 - 560 Nm

ROTEX® GS P ETP

Hydraulic clamping bush, quick and frequent assembly

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15 - 170 Nm

TOOLFLEX® ZR

Cardan shaft - bridging shaft distance

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370 - 487,000 Nm

CLAMPEX® KTR 203

A compact alternative to CLAMPEX KTR 200

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1.8 - 200 Nm

ROTEX® GS expansion hub

For hollow shafts, hollow shaft coupling

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15 - 170 Nm

TOOLFLEX® S-H(M-H)

Half shell coupling - radially mountable

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290 - 342,000 Nm

CLAMPEX® KTR 206

A compact alternative to CLAMPEX KTR 201

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6 - 560 Nm

ROTEX® GS A-H

Half shell coupling, radially mountable

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287 - 1,796 Nm

CLAMPEX® KTR 225

Combines internal diameter of hub with various shaft diameters

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11 - 25,000 Nm

CLAMPEX® KTR 250

Particularly suitable for thin-walled hub bodies

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700 - 1,640,000 Nm

CLAMPEX® KTR 400

Self-centering clamping element with utmost performance data

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12.5 - 655 Nm

ROTEX® GS ZR3

Cardan shaft, intermediate pipe made of aluminium variable in length

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backlash-free, bending and torsionally stiff rigid shaft couplings

Rigid shaft couplings CLAMPEX KTR 700

Rigid shaft couplings for backlash-free, bending and torsionally stiff shaft-to-shaft connection. Among others, CLAMPEX®

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References

In fact, all of the magazines are built using the same KTR coupling for driving the magazine chain itself.

Examples of use

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