Martin GmbH

Multi-Coupling (MMK2)

The MARTIN Multi-Coupling serves as a connecting element between machines and attachments. The MARTIN Multi-Coupling MMK2 is a system for connecting two hydraulic lines by means of single lever movement. The hydraulic reaction forces are absorbed by the coupling housing.

The MARTIN Multi-Coupling MMK2 has been designed for rough on-going site operations and is practically leak free. These couplings are equipped with residual pressure eliminators as standard. This ensures a coupling of pressurised systems with the minimum of effort.

MARTIN Multi-Coupling MMK2


  • Connection and separation of two hydraulic lines with one lever movement
  • Reduced closing and opening forces
  • Reduced wear
  • Operating pressure up to 420 bar
  • Visualisation of the operating state through the lock indicator
  • High quality standard due to use of latest technologies

Technical information on the MMK2

Max. operating pressure 420 bar
Max. pulse pressure 420 bar
Min. bursting pressure 1300 bar
Ambient temperature -20 °C to +45 °C
Oil temperature -20 °C to +100 °C
Hydraulic medium ATF, mineral and synthetic oil (ester based)
Weight of MMK2 housing approx. 32 kg
Weight of MMK2 cover complete approx. 13 kg
SAE connections 38s/SAE 1½" 6000 PSI
Other connections on request

MARTIN Multi-Coupling MMK2 Construction


Martin GmbH
Klostertalerstraße 25
6751 Braz | Austria
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Hotline +43 5552 28888-0
Please contact our service team on +43 5552 28888-0 should you have any questions on any of our machines.