Hydraulical Quickcoupler for Mini Excavators - Welcome to Lehnhoff Hartstahl
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NEW: HS 01 DL / HS 03 DL / HS 03H DL

The new hydraulic quickcoupler for mini excavators

With the hydraulic Lehmatic quickcouplers for mini excavators you can change your attachments quickly, safely and conveniently at the push of a button from the cab. All hydraulic mini quickcouplers lock with permanent spring pressure (HS 03H with additional hydraulic blocking) and unlock hydraulically by means of a single-acting cylinder. Therefore only one hydraulic line is required for the installation on the excavator. The new Double Lock safety lock is now also integrated for maximum safety.


NEW: Double Lock (DL) - the Plus in Safety

The new standard Double Lock safety lock prevents the attachment from falling off in the event of an incorrect locking. An additional claw attached in the middle between the receiving claws encloses the receiving shaft in a form-fitting manner immediately after the locking procedure and prevents the attachment from falling off in any position.

Double Lock Video

HS 01 DL / HS 03 DL

  • Convenient changing of attachments from the driver's cab
  • The driver activates the control valve via an unlockable toggle switch and locks / unlocks the quickcoupler at the push of a button. Optionally with operating unit Lehmatic Control instead of toggle switch.
  • The quickcoupler is always locked securely and without play through permanent spring pressure
  • Unlocking hydraulically via a single-acting cylinder
  • Standard double lock safety lock
  • Optionally available with load hook (1 - 3 t)
quickcoupler HS 03
quickcoupler HS 03
    • Only one hydraulic line required for installation

    • The quickcoupler is unlocked by hydraulic pressure on a single-acting cylinder

    • Locking by spring force


HS 03H (Hydroblock)

  • Convenient changing of attachments from the driver's cab
  • Operated via unlockable toggle switch or with the Lehmatic Control operating unit
  • Always secure locking through permanent spring pressure - with additional hydraulic locking of the locking pins for more powerful mini excavators from 4.8 t and heavy-duty tools such as a hydraulic hammer
  • Unlocking hydraulically via a single-acting cylinder
  • Optional safety assistance system Lehmatic Safety Control (LSC)
  • Optionally available with load hook (2 - 3 t)
quickcoupler HS03H
quickcoupler HS 03 Hydroblock
    • Only one hydraulic line required for installation

    • Additional locking through defined hydraulic blocking of the piston with lowering brake valve. Nevertheless, as with the HS03, only one hydraulic line is required

    • Locking by spring force

Technical Data HS 01 / HS 03 / HS 03H

Quickcoupler HS 01 DL HS 03 DL HS 03H DL
Excavator class 0,5 - 2 t 1,5 - 5 t 4,8 - 6 t
Length (mm) 235 295 295
Width (mm) 180 200 200
Weight approx. (kg) 15 30 30
Adapter SW01 SW03 SW03
Take-up shaft Ø (mm) 40 50 50
Release pressure min. (bar) 130 160 160
Load hook option, permissible load 1 t 3 t 3 t

All quickcoupler systems that are equipped with Double Lock safety features are listed as eligible quickcoupler systems at BG Bau. See link:

https://www.bgbau.de/service/angebote/arbeitsschutzpraemien/praemie/schnellwechseleinrichtungen/

© 2024 Lehnhoff Hartstahl GmbH

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