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Selection guideFour-hose reels
Replacing a reel or equipping a machine? Compare A4, S4 and M4 : two twin hoses, four separate hoses or two independent movements.
Choose a family
Four lines alone do not identify a replacement: the hose configuration and movement distinguish the three main families.
A4 Standard
Two twin hoses on one drum; all four lines move together, with identical diameters in each pair.
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S4
Four separate hoses; different diameters or pressures between lines, or replacement of individual lines.
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M4
Two twin hoses and two independent springs; for two components that do not move at the same time.
View part numbersA4 variants — overall size or flow rate
A4 Compact
Two twin hoses moving together; a variant for limited space, particularly on a forklift mast.
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A4.12
Four lines in 1/2″; an A4 variant to compare with the S4 for this diameter and flow requirements above 30 l/min.
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A4.19
Four lines; another A4 variant to examine for flow rates above 30 l/min, using the technical points in this guide.
View part numbersAdditional configurations — cable or forklift kit
Your constraints, your family
On a small screen, scroll the table horizontally if necessary.
| Your situation | Family |
|---|---|
| Standard requirement | A4 Standard — fifteen sizes, up to 37 m |
| Limited space — forklift mast |  A4 Compact |
| Flow rate above 30 l/min |  A4.12 or A4.19 |
| Lines of different types | S4 |
| Two independent components |  M4 |
| Four lines and one cable |  A4/E |
| On a forklift, as a complete kit |  4-line forklift kit |
Compare A4, S4 and M4
On a small screen, scroll the table horizontally if necessary.
| Approach | Family | When it is needed |
|---|---|---|
| Two twin hoses on one drum | A4 Standard, A4 Compact | Standard requirement. All four lines move together, with identical diameters in each pair. |
| Four separate hoses | S4 | Different diameters or pressures between lines, or replacement of individual lines. |
| Two twin hoses on two springs | M4 | Two components that do not move at the same time. |
The M4, when two components move separately
Consider the M4 when the hose assemblies need to follow independent movements. Record the travel distances, their directions and mounting constraints to check the configuration.
The catalogue describes the M4 as having two independent external springs. This distinction must be retained when comparing it with the A4 or S4; it is not sufficient to validate the travel and mounting of a replacement part number.
Points to check before substitution
Identify the hose arrangement. Distinguish two twin hoses, four separate hoses and a quadruple profile. Compare the construction fitted to the machine, the diameters and the guides; four lines alone do not define an interchangeable configuration.
For a four-line requirement in 1/2″, compare the A4.12 and the S4. If an electrical line is also required, see the A4/E. Check the available diameters for the exact part number.
Check the complete replacement. Compare flange diameter, width, weight, hole centres and connections. Do not infer these dimensions from a two-line family or a photograph.
What to send for a quotation
- For a replacement: full part number, photograph of the nameplate and views of the existing installation.
- The four circuits: diameter, flow rate, pressure — and whether they move together.
- Whether one line can remain fixed.
- Usable length of each hose assembly, available space and mounting hole centres.
- Connection direction and mounting position.
Quotations and technical advice on request.