Product guide for excavators

Mechanical M4S and hydraulic H4S rotating coupler

M4 For carriers from 7.5t to 10t

Compliant with standards EN474-1 and ISO13031:2016

As a major designer and manufacturer of tools and quick fasteners, ACB+ designs its couplers in the respect of the geometries imposed by the machine manufacturers. Thus, machine performance is entirely conserved.

The rotating coupler has a broad range of applications. It provides a multi-function capability and the reversibility of all compatible tools.

Using the 360° rotation, do up to 80% of the work of a tilt-rotator for a much lower cost. The orientation function is available in a mechanical or hydraulic coupler version and allows very precise working, particularly for roads and networks.

  • 360° rotation through the hydraulic power unit, and the wheel and worm gear.
  • Hydraulic (on option for the Module 4 mechanical coupler) and electrical (option) revolving joints are available to accept all types of tools.
  • Extremely simple to install due to the use of an ancillary line for the rotation (proportional control strongly recommended)
  • Compact and sturdy construction for occasional use of a HRB.
  • Sealed casing for total protection of the hydraulics.
  • Compatible with all tools in Morin Original System the original S, CW and SW hookup systems
Which coupler choose?

Available in systems

Description

Functions:

Did you know that a rotating coupler offers even more possibilities than an inclinable coupler?  This same coupler does up to 80% of the work of a tilt-rotator for a much lower cost!

Compared with a conventional coupler, the rotating coupler offers a time saving of 10% in excavation, 30% in networks and 50% in construction, while also eliminating manual work.

It’s the perfect solution for your work site multi-function requirements. It has a broader range of utilisation than inclinable couplers and provides the required precision, particularly for roads and networks applications: complex form embankments, tipping and filling of trenches, mound working, rockfilling, moving pallets, working around a pipe, sorting, compacting, hydraulic hammer, etc.

Manoeuvrable and practical

Driver familiarisation with the mechanical M4S and hydraulic H4S rotating couplers is simple and quick due to their compact design and their driving through a single hydraulic function in the cab. The worm gear system provides high precision and 360° rotation. The rotating coupler also provides reversibility for all your accessories.

No complex conversion or extra equipment is required to install the mechanical M4S or hydraulic H4Srotating coupler. Most machines have 2 auxiliary lines and the line with the highest flow rate is kept to feed tools such as the HRB.

In fact, the HRB can be used occasionally, thus avoiding sandwich assemblies.

The mechanical M4S rotating coupler can, on option, be equipped with a hydraulic revolving joint, the flow rates of which allow a hammer or a gripper to be used (standard for hydraulic H4S coupler) and, again on option, an electrical connection.

Reliability:

The mechanical M4S and hydraulic H4S rotating couplers are compliant with standards EN474-1 and ISO13031:2016

The mechanical M4S and hydraulic H4S rotating couplers have a compact design, thus maintaining the maximum performance of the machine.
They are equipped with a specifically designed and sized worm and wheel coupling protected by a high resistance monobloc housing, fully sealed for a longer life. The components are carefully selected for their mechanical robustness and their resistance to wear, allowing the occasional use of a hydraulic breaker.

Simple to use:

Only a few movements are needed to lock the tool.

For the mechanical coupler: Unlocking with the smart key unhooks the tool with a single action.

For the hydraulic coupler:  Unlocking by simply pressing the control unit in the cab unhooks the tool. In the case of a hydraulic problem, the H4S coupler can be unlocked using a standby key, thus providing service continuity

Easy identification of module:

The module is easily identified through the use of a colour code on the casing and on the standby unlocking key. This advantage is particularly appreciated in multi-module installations.

The module ident. is also engraved the couplers and tools.

The mechanical M4S and hydraulic H4S rotating coupler is identified by the colour orange.

Compatibility:

The mechanical M4S and hydraulic H4S rotating coupler is suitable for mini-excavators from 7.5 to 10 tons. It is equipped with a lifting ring, designed to be used with the shackles recommended by ACB+.

All the tools in the Morin Original system M4, can be used with the mechanical M4S and hydraulic H4S rotating couplers, which are pinned onto the machine with the original pins.

The mechanical M4S rotating coupler is also available with the Nordic S and Verachtert CW systems.

The universal scraper was specifically developed for optimum rotation and the HRB may be used occasionally.

Double SAFETY SYSTEM:

The mechanical M4S and hydraulic H4S rotating couplers are compliant with standards EN474-1 and ISO13031:2016

Like all the mechanical couplers in the Morin Original system, the mechanical M4S rotating coupler has a dual safety system comprising an

  • Automatically activated stop that prevents any risk of cam backward movement – patented system
  • Cam equipped with the patented Form-lock system that prevents any risk of unlocking if the safety stop fails

Like all the hydraulic couplers in the Morin Original system, the hydraulic H4S rotating coupler has a dual safety system comprising an

  • Double-action hydraulic actuator, permanently pressurised, to hold the cam in the locked position
  • Cam equipped with the patented Form-lock system that prevents any risk of accidental unlocking

The overall system is equipped with an indicator that is visible from the cab, to visually confirm proper locking.

Technical data

Mechanical M4S and H4S rotating coupler

Specification Value Units
  Mechanical Hydraulic
Rotation power unit RT091
Weight of carrier vehicle 7.5 to 10 [t]
Max. Break Out Force (BOF) ISO* 87 [kN]
Max. bucket width 1400 [mm]
Approx. weight with/without revolving joint 265/280 -/285 [Kg]
Rotation speed: with proportional control 9 [t/mn]
Rotation speed: with on/off control 5 [t/mn]
Max. ROTATION pressure 175 [bar]
Nominal ROTATION flow rate with proportional control 40 [l/mn]
Nominal ROTATION flow rate with on/off control 20 [l/mn]
Number of lubrication points 5 4
Max. play at orientation joint +/- 1,8 [mm]
Max. lifting load on ring 5 [t]
REVOLVING JOINT (option)
Free extra function on channels 1 and 2 Plane face connector 1/2” ISO 16028
Nom./max. flow rate 70/90 [l/mn]
Pmax 300 [bar]
Channel 3 Not connected Reserved for Locking
Max. 45 bar
Nom/max flow rate 15/24 [l/mn]
Pmax 300 [bar]
Channel 4 Not connected Reserved for Unlocking
Max. 280 bar
Nom/max flow rate 15/24 [l/mn]
Pmax 300 [bar]
Channel 5 (Drain) Plane face connector 3/8” ISO 16028
Nom./max. flow rate 35/45 [l/mn]
Pmax 300 [bar]
Electrical option on channel 6 12 channels

Note: The revolving joint is an option on the mechanical M4S rotating coupler. The above data relating to revolving joints is therefore dependent on your rotating coupler configuration.

* according to standard ISO6015:2006 Methods of determining tool forces