MPI - Lohmann+Stolterfoht - shaft & vibration-damping couplings

Pneumaflex KA

Spiroflex KSS/KSP

Pneumastar KU

Highly Elastic Cluthes for torque of up to 304 kNm Pneumatically switchable .

The special qualities of a highly torsionally elastic and vibration dampening coupling and those of a pneumatically operated double cone friction clutch are purposefully combined in this PNEUMAFLEX clutch. It reliably interrupts or establishes the flow of power between the diesel engine and the other driving components.

Highly Elastic Couplings for torque of up to 928 kNm Couplings for torques of 185 kNm and higher are equipped with segmented elastomer elements.

The highly torsionally elastic SPIROFLEX shaft coupling compensates, by virtue of its elastic rubber elements, radial axial and angular alignment deviations. Its high torsional elasticity and excellent dampening capability renders this coupling indispensable for propulsion systems prone to torsional vibration.

Torsionally Stiff Clutches Pneumatically switchable. For stiff, but switchable connections.

The PNEUMASTAR clutch is a torsionally stiff double-cone friction clutch. The clutching components consist of two inner and two outer friction cones of which the inner ones are pneumatically pressed against the outer tapered friction faces via a clutching cylinder operated pneumatically. Rubber sleeve springs form the torsionally stiff portion of the clutch.

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*Select one of the following:*
*SPIROFLEX*
*PNEUMAFLEX*
*PNEUMASTAR*
*ELECTRONIC SLIPPAGE MONITORING DEVICE*
*ALTERNATING ANGLE MEASURING DEVICE*
*PNEUMATIC REMOTE CONTROL DEVICE*

SPIROFLEX

SPIROFLEX

Our highly elastic torsionally SPIROFLEX shaft couplings with their rubber elements compensate for off-center misalignment and deviations from the angular and axial position. Their high vibration-damping capabilities make them indispensable for drive units susceptible to torsional vibrations. (more info)

Coupling Types

All versions of the SPIROFLEX KS coupling feature the following:

Elements can be removed radially
Exclusively features frictionally locked connections
Backlash-free torque transmission
Flywheel connecting dimensions acc. to DIN 6288

The rubber elements determine the property-descriptive designations of all KS-type couplings for which rubber mixtures W and MD (natural rubbers) are available. Epecially torsionally soft couplings can be built by arranging rubber elements in series. Should an application call for particularly torsionally hard couplings, please contact us for suitable solutions.

Some classification societies have prescribed get-you-home-devices for emergency operation of couplings in main marine propulsion systems driven by a single prime mover. This get-you-home-device allows static transmission of the nominal torque of the coupling. The changed torsional vibration situation has to be taken into account.


		SPIROFLEX KSP Coupling KSP 100 - 370 with two elastic ring elements arranged in parallel. For universal applications.
		SPIROFLEX KSS Coupling KSS 390 - 470 with two segment rings arranged in parallel. Type KSS 490 - 530 features four parallel arranged segment rings.
		SPIROFLEX KSM Coupling with two series-arranged elastic element stacks and radial support. For applications that need a very torsionally soft coupling. The double-cardanic design version (on request) of the KSM type is recommended for machinery systems mounted in a highly flexible manner and involving a major amount of displacement.
		SPIROFLEX KSE Coupling with one to four series-arranged elastic elements and radial support. Each element transmits the full torque. For applications where an extremely torsionally soft coupling is required. The double-cardanic design version (on request) of the KSE type is recommended for machinery systems mounted in highly flexible manner and involving a major amount of displacement.

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PNEUMAFLEX


	PNEUMAFLEX
	The particular features of a highly elastic torsionally and vibration-damping coupling are perfectly combined with those of a pneumatically operated double cone friction clutch in the form of our PNEUMAFLEX clutch. This reliably separates or connects the power flow between a Diesel engine and the drive unit. (more info)
	Classification PNEUMAFLEX clutches are approved without restrictions by all known classification societies for use in marine main propulsion and PTO systems. The rubber elements are type tested and the respective clutch materials - e.g. GGG 40 or steel for torque-transmitting parts - selected in line with the classification societies' specifications.	Torque limiting devices Some classification societies have prescribed torsion limiting devices for emergency operation of couplings in main marine propulsion systems driving a single propeller. This torsion limiting device allows static transmission of the nominal torque of the coupling. The changed torsional vibration situation has to be taken into account.
	Moreover, if additonal ice class requirements are to be met, it is recommended that the clutch size selection be established by us.
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PNEUMASTAR

	PNEUMASTAR
	Where fast and reliable declutching is indispensable and torsional vibrations in the power transmission can be neglected, our torsionally stiff, pneumatically operated PNEUMASTAR clutch is the right drive element to choose. The only wear to which these clutches are subject is that of their environmentally acceptable friction pads.(more info)
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slippage

	Electronic slippage monitoring device
	The rotating clutches are subjected to continuous pulse measurement and comparison of the driving and driven elements. Any slip between the elements produces a pulse differential, in which case this non-contacting monitoring system triggers an alarm.
	Slippage in clutches is checked by the electronic monitoring device CA which has been designed to: indicate clutch-slippage in consequence of overload work contact free notice early unpermissble loads offer additonal safety to prevent damage due to overloading The slippage monitoring device CA indicates on PNEUMAFLEX and PNEUMASTAR clutches inadmissible clutch-slippage The monitoring function of the unit is based on measuring the speed difference arising between the primary and secondary part of the clutch. The monitoring unit is maintenance-free, works contact free and does not suffer mechanical wear A high degree of functional reliability is ensured by making use of intergrated circuits The system comprises a control unit, two pick-ups with 10m long permanently connected cables, and a total of eight magnetic pins.
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angle

	Alternating angle measuring device
	Dangerous alternating torques in Diesel engine drives are picked up and signalled by our electronic alternating angle measuring device. Non-contacting pick-ups receive the pulses from the drive and driven elements of flexible couplings. Pulse changes caused by alternating torques then trigger an alarm at a preselected threshold.
	The electronic alternating angle measuring device FA serves to monitor excessive torques resulting from torsional vibrations. The unit: registers and monitors alternating angles operates in a contactless manner responds rapidly by taking direct measurements on the highly elastic rubber elements notices early unpermissble loads offers additional safety to prevent damage to torsional vibrations The device measures and monitors alternating angles superimposed on the nominal angle of twist in highly torsionally elastic SPIROFLEX and PNEUMAFLEX couplings respectively cluthes. Measurment parameter is the changing angle of twist between the primary and secondary part of highly elastic rubber elements of the coupling. The measuring device is maintenance-free, operates contact-free and does not suffer mechanical wear. To ensure a high degree of functional reliability this monitoring system is equipped with intergrated circuits. The measuring device comprises of a control unit, two pick-ups with 10m long permanently connected cables, and a total of 24 magnetic pins.
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remote

	Pneumatic remote control device
	For our pneumatically operated PNEUMAFLEX and PNUEMASTAR clutches, we also supply the appropriate remote control units for operation from one or several control positions.
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