Awards & Patents

Groundbreaking DIENES patents

Thanks to the know-how of more than a century and a very strong in-house research and development department, DIENES is the world’s leading manufacturer of industrial cutting tools. This enables us to offer our customers perfect, tailor-made solutions for the respective application. We aim at being your competent partner with a holistic eye for precision and innovation. This is also illustrated by the DIENES innovations, as our innovative strength is underpinned by numerous internationally protected patents.

Since the invention of the fixing of the collar on plain shaft, numerous utility models and patents demonstrate the constant drive for technical innovations. With the aim of making the cutting process safer, more durable, more economical, faster and narrower – in other words, simply better – DIENES engineers have been successfully on the road for over 100 years. This is impressively demonstrated by many satisfied customers and numerous awards.

Das Bild zeigt einer der DIENES Patente und zwar eines von 1959 für eine Exzenterfeststellung auf einer glatten Welle.

Excentric ring fixing for plain shafts

1958 – With this invention, our founder Karl Rudolf Dienes made it possible to fix the collar and grooved knife on a plain shaft. This method is also known as ball ring excenter. The design, which has been tried and tested for years, still offers secure fixing with minimal radial deviations of the dished and grooved knives.

To the fixing methods

Abbildung eines DIENES Quetschmesserhalters.

Pneumatically adjustable knife holder

1970 – With the patent publication of the first pneumatic knife holder, DIENES has succeeded in significantly increasing the ease of use and the functional safety of the cutting process. For the first time, DIENES has replaced the manual adjustment functions of the knife holder with a pneumatic sequence of movements.

Knife holder PQDS and PQAS

Das Bild zeigt ein weiteres der DIENES Patente. Zu sehen ist der von DIENES entwickelte elektrische Messerhalter, der hier in einem Spitz auf Spitz Schneidsystem eingesetzt wird.

Electric knife holder

1991 – Already this year, DIENES was able to apply for a patent for an electrically operated knife holder. Automated knife depth adjustment, high-precision cutting force control and up-to-date data acquisition paved the way for Cutting 4.0. Basic elements of the design have revolutionised and had a lasting influence on cutting technology across all industries.

Knife holder PSGs DF 50

DIENES Schneidkassette für Schmalschnitt ab 2 mm für Klebeband, Luftschlangen, Verschlussband und Isolierband, eines der zahlreichen DIENES Patente.

Longitudinal slitting machine with slitting cassettes (crush cut)

1992 – The patenting of a slitting cassette for the crush cut process enables the tightest tolerances with enormously short set-up times. This innovation has proven itself to this day in the cutting of seals, insulating tape, adhesive tape, tape and nappy closures.

Crush cut slitting cassette

Ein Handgriff und der ausgefahrene Einstellschieber „Easy Set“ sorgt für eine schnelle und exakte Messerhaltereinstellung.

Adjusting slide Easy Set

1993 – One handle and the swivelling adjustment slide Easy Set allows precise slitting width adjustment in seconds. This DIENES invention not only ensures greater safety, but also considerably reduces set-up time and blade adjustment in seconds.

Adjusting slide Easy Set

Das Bild zeigt das patentierte Golden Slit Messer für den Schmalschnitt.

Narrow cut knife Golden Slit for shear cut

2001 – These self-springing knives are a world first! The spring effect is achieved by slits in the knife. Additional coatings extend the service life and even the narrowest cutting widths are no problem with these innovative knives.

“Golden Slit” knives

DIENES Rundmesser, abgebildet ist ein Messerpaar bestehend aus Ober- und Untermesser. Zudem verdeutlicht das Bild die Wichtigkeit einer präzisen Tiefeneinstellung bei Scherenschnittmesserhaltern, wie sie bei DIENES auf verschiedene Weisen vorgenommen werden kann.

Stroke-independent slitting force control (CSL)

2002 – The new knife holder heads with integrated Constant Side Load technology are able to control, steer and reproduce the cutting forces between the top and bottom knives very precisely. This way you achieve a stable cutting point with optimised cutting edge quality and a significantly increased tool life.

More about the CSL technology

Schneidsystem von DIENES mit dem Messerhalter PSGs DF Senso Control aus der Nähe - Fokus auf dem LED-Display.

Depth adjustment Senso Control

2004 – Red and green LEDs tell the operator in which direction to turn the adjusting nut for manual depth adjustment. This clever innovation, which ensures more precision and safety especially when changing knives, is already being used successfully by many customers. The overlap depth thus remains constant, even with regrinded knives. The measurement is carried out contact-free via sensors.

More about Senso Control

Eines der innovativen DIENES Patente stellt auch das hier abgebildete Spitz auf Spitz Schneidverfahren dar.

Slitting method “Twin Cut”

2006 – Fully automatic longitudinal cutting system with a modification of the shear cut method: instead of the classic bottom knife, a pointed circular knife is used. For optimum cutting edge quality, high cutting accuracy and easy operation.

More about the cutting method

Other DIENES patents

Das Bild zeigt eines der ersten DIENES Patente, nämlich das für die damals neuartige Keilfeststellung von 1926.

The key fixing

1926 – The key fixing was invented by Karl Rudolf Dienes. The patent gave a trend-setting impulse to the entire slitter construction – it offered faster adjustment of the slitter width, intermediate rings were no longer necessary, the cutting speed…

1926 – The key fixing was invented by Karl Rudolf Dienes. The patent gave a trend-setting impulse to the entire…

To the fixing methods

Das Bild zeigt den beheizbaren Quetschmesserhalter PQAS BH von DIENES, eines von vielen DIENES Patenten.

Crush cut knife holder with heating device

1977 – The development of a heatable crush cut knife holder has significantly improved the cutting result when producing stickers or labels. The temperature of about 70° Celsius prevents adhesive residues from remaining on the blades of the knives.

1977 – The development of a heatable crush cut knife holder has significantly improved the cutting result when producing stickers…

Knife holder PQAS BH

Auf dem Bild ist ein 360° Sicherheitshandschutz für einen Scherenschnittmesserhalter zu sehen.

360° safety hand guard

1990 – With this individually adaptable development, DIENES has been able to make a significant contribution to reducing the accident rate with cutting tools. The newly developed safety element prevents gripping between the knives before or after the cutting process.

1990 – With this individually adaptable development, DIENES has been able to make a significant contribution to reducing the accident…

360° safety hand guard

Das Bild zeigt die Zusatzfunktion Schnellwechselkopf an einem Messerhalter PSGm 19 DF. Bei einem Schneidmaterialwechsel kann mit geringeren Aufwand zwischen Quetschschnitt, Rasierklingenschnitt und Scherenschnitt variiert werden.

Knife holder with quick change head

1991 – The DIENES quick change head enables quick and safe replacement of the knife holder head. In this way, it is possible to vary between crush cut, razor blade cut and shear cut in a very short time. In…

1991 – The DIENES quick change head enables quick and safe replacement of the knife holder head. In this way,…

Quick change head

Das Bild zeigt den DIENES Messerhalter DS 8 mit Zusatzfunktion Easy Change für den werkzeuglosen Messerwechsel.

Shear cut knife holder with shear angle adjustment

1991 – With the development of the shear angle plates, DIENES has succeeded in remaining true to the philosophy of using as few components as possible and presenting a highly precise adjustment aid that can be read from the outside.

1991 – With the development of the shear angle plates, DIENES has succeeded in remaining true to the philosophy of…

Knife holder DS 8

Mit dem hier zu sehenden, kinderleichten Schnellspannsystem „Quick Clamp“ werden Messerhalter an Längsschneidemaschinen schnell und einfach fixiert, untereinander ausgetauscht und positioniert.

Knife holder with Quick Clamp

1994 – The Quick Clamp fastening lever ensures quick and secure fastening of knife holders on longitudinal slitting machines. Replacement and positioning is also child’s play. Suitable for every crossbar and can also be retrofitted!

1994 – The Quick Clamp fastening lever ensures quick and secure fastening of knife holders on longitudinal slitting machines. Replacement…

Quick Clamp

Auf diesem Foto sind die DIENES Patente und Zusatzfunktionen für Messerhalter, der Einstellschieber Easy Set und der Schmierfilz für die Messerschmierungzu sehen.

Movable knife lubrication

2001 – Patenting of the first knife holder with a movable knife lubrication.

Lubrication felt

Slitting machine set up for an automatic knife change

2003 – Utility model: The slitting machine set up for an automatic knife change (patent Germany) was designed by DIENES for absolute high performance in the paper, printing and aluminium sector.

2003 – Utility model: The slitting machine set up for an automatic knife change (patent Germany) was designed by DIENES…

Auf diesem Foto ist eine Schneidbüchse in zweiteiliger Ausführung zu sehen, ein weiteres der zahlreichen DIENES Patente.

Multiple grooved knife boxes and bottom knives in two-piece design

2004 – Two-piece multiple grooved knife boxes and intermediate rings with and without single locking “Duo-Ring”. Enables easier removal from the cutter!

2004 – Two-piece multiple grooved knife boxes and intermediate rings with and without single locking “Duo-Ring”. Enables easier removal from…

Das Bild zeigt die Zusatzfunktion Easy Eject für den Messerwechsel um das Quetschmesser einfach und schnell rauszuholen.

Changing aid for the crush cut knife

2008 – Patenting of the crush cut knife arrangement with change aid for the crush cut knife (Easy Eject).

Easy Eject

Hier ist die Urkunde für ein weiteres der DIENES Patente - den trockenlaufenden Schraubenverdichter mit pneumatisch gesteuertem Entlüftungsventil zu sehen.

Dry-running screw compressor with pneumatically controlled relief valve

2011 – This patented screw compressor has a dry-running compressor unit that has both a suction and a discharge side and is also motor-driven. The throttle valve and relief valve are controlled separately on this compressor unit, with the relief…

2011 – This patented screw compressor has a dry-running compressor unit that has both a suction and a discharge side…