Symmetrical type S coupler
The symmetrical standard of Swedish origin, often called “Volvo type”.
Sizes S30 to S90:
the number follows the class of the machine.
Other names for this tool: S type, S coupler, symmetrical standard, S Nordic, “Volvo type”.
- Family
- Coupling and adapting
- Classes (t)
- All, by size
- Coupler
- S standard
- Power source
- Depending on the version, mechanical or hydraulic — flow and pressure: we calculate it with you for your machine
What it is for
Right: the same bucket picked up the other way round, teeth facing outwards, without any dismantling.
What sets it apart:
the symmetry is not for looks — it allows the tool to be picked up the other way round, without dismantling it.
Computer-generated image.
Synthetic video.
Its symmetrical geometry allows the tool to be presented both ways round:
a bucket can work in the backacter position or reversed without dismantling.
That explains part of its spread.
It is not patented.
Any bucket maker can produce a mounting plate to this format, and many do:
that is why it is met with under very different makes, with the same designation.
The size ranges deliberately overlap. The S45 and the S50 cover the same machine class:
the choice between the two is made on the carrier and on the equipment already in place, never on the tonnage alone. See the sizes by machine.
On which machine?
A type S coupler exists for all excavator classes, depending on the size.
Our records cover excavators from 1,6 to 10 t.
What the tool does
Coupling and adapting your tools: that is its job.
Its weight: we calculate it with you for your machine.
What is needed on the hydraulic side
Depending on the version, locking is mechanical, or hydraulic with a control in the cab.
For the hydraulic version, the flow and the pressure: we calculate them with you for your machine.
Figures taken from 12 models on the market.
Your study sets the exact value for your machine.
Have your machine checked.
Send us a photograph of the end of the dipper arm:
the designation is most often engraved there.
With the machine model, that is enough to settle it.
- Your machine Its make and its tonnage.
- The auxiliary circuit Its flow in l/min, its pressure in bar, single- or double-acting.
- The coupler in place Its system and its class.
- The work The use, and the material.
Without these details, the study still begins: we will ask you for them.
Or call 01 84 16 55 49 · our lines are open 7 days a week, from 7h to 22h.
Written study within 3 working days, once the file is complete.
Synthetic image.
What determines the choice
-
01 — The size, read on the coupler
The designation is generally engraved or painted.
It is the surest reading, before any calculation from the tonnage. -
02 — Mechanical or hydraulic
The standard describes the geometry, not the locking method.
Both exist in the same size. -
03 — The fleet already equipped
An S mounting plate does not fit on a coupler of another standard.
That is not an obstacle:
it is the tool's mounting plate that adapts. -
04 — The maker of the mounting plate
The standard being open, the quality of manufacture varies.
The thickness of the plate and the way the forces are taken are not the same everywhere.
What is checked before ordering
- The exact designation S30, S40, S45, S50, S60, S70, S80 or S90 — read off the coupler, not deduced.
- The version, mechanical or hydraulic It changes what the machine has to supply.
- The standard of the tools already in service It governs the standard of the mounting plate to be fitted on the new tool.
- The tonnage and model of the machine They confirm the reading, or contradict it — in which case it is the reading that wins.
- Family
- Coupling and adapting
- Compatibility
- The seven criteria in detail →