Thread unscrewing units


Active core cooling is an additional option with which the threading core, spindle, and etc. are cooled, thereby significantly reducing production cycle times and increasing thread quality.

The cooling system has two connections. The rear connection channels coolant, such as water, into the mold housing. Inside the housing there is a cooling pipe that conducts the coolant into the mold core, reducing its temperature. The coolant then flows along the outer layer of the coolant pipe out of the mold core so that it can be returned to the coolant tank through the lower connection.

The active core cooling is equipped with dynamic face seals that can operate at a rotational speed of 6 m/s. Thanks to their compact size of Ø 25, Ø 29 and Ø 54 mm, they are perfect for the cooling of threading cores as well as for other dynamic face seals in small spaces.

Kernkühlung DESOI

Example Ø 29 mm

The active core cooling with its 3 mm diameter channel delivers a throughput of 6.5 l/min. at a pressure of max. 3 bar. The system was conceived especially for injection molding applications and easily withstands temperatures from -10 to +120 °C.



The pressure protector reduces the inlet pressure up to 10 bar down to 3 bar, thereby the core elements will be protected. The pressure protector reduces the inlet pressure up to 10 bar down to 3 bar, thereby the core elements will be protected. The output pressure of the pressure protector is fixed by the manufacturer and not adjustable. An advantage for a constant functionality of the core cooling is a temperature filter (No. SR-FI-0001-B.)



  • Constant input pressure



Pressure protector

Sebastian Bohl

Phone +49 6655 9636-37

Core cooling

Core cooling

PDF open


Contakt Cina

Shenzhen Keyway Precision Components Co.,Ltd

Xu Yong

Shenzhen Keyway Precision Components Co.,Ltd
Room 603-605,Flat C,
Guang Xing Yuan Internet Creative Park,
#2005, Xingye Road,Baoan District,Shenzhen,China 518101
Phone +86-755-8605 2457/8605 2465

Contakt Finland / Estonia / Latvia / Lithuania

YUDO Nordic Oy

Tapio Aunio

Mertaniementie 23
FI-36200 Kangasala

Phone +358 400 518 320

Contakt Kanada / USA

DMS – Your Innovative Edge

Mike Hicks

1875 Blackacre Drive
Oldcastle, Ontario N0R 1L0
Phone (519) 737-6743 800-265-4885
Fax (519) 737-6744 800-845-3807

1609 S Grove AVE Suite 111
Ontario, CALIFORNIA USA 91761-4528
Phone 800 421 3993
Fax 800 953 9561


1591 Elmhurst Road
Elk Grove Village, Illinois 60007
Phone (847) 885-6007 888-766-8006
Fax (847) 885-6075 800-367-4199

Kontakt Österreich / Ungarn

Ramseier Normteile GmbH

Roman Rath

Gewerbestraße 14
A-5301 Eugendorf
Phone +43 (0) 6225 20 100 0

Kontakt Schweiz

E. Ramseier Werkzeugnormalien AG

Daniel Jenny

Dübendorfstrasse 27
CH-8602 Wangen bei Dübendorf
Phone +41 44 834 01 01

Kontakt Spanien

Bru y Rubio S.L.

José M. Pascual de Bonanza

C/ Huelva, 19
Pol. Industrial L'Alfaç II
Phone +34 96 555 31 99

Kontakt Tschechien / Slowakei

CECHO – Bohumil Cempírek s.r.o.

Tomáš Filippi

Polnička 309
591 02 Žďár nad Sázavou
Phone +420 566 620 705


Verband Deutscher Werkzeug-
und Formenbauer e.V.