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DEMAC rangeHoses and cables for reels
Choose the hose/cable construction or find its part number from the markings. Check diameters, connections and operating conditions on the corresponding product page.
Find the required hose or cable
Hydraulic hoses
TU1
Single hydraulic hose.
View part numbers
TU2
Twin hydraulic hoses.
View part numbers
TU3 and TU4
Triple and quadruple hydraulic hose assemblies.
View part numbers
Hoses with integrated cable
TU3/E, TU2+E and TU4+E: specify configuration.
View part numbersCables
Hydraulic hoses
| Family | Configuration | Diameters | Pressures |
|---|---|---|---|
| TU1 | Single hose | 1/4″ to 1″1/2 | 45 to 700 bar |
| TU2 | Twin hose | 3/16″ to 3/4″ | 160 to 700 bar |
| TU3 and TU4 | Triple and quadruple | 1/4″ to 5/8″ | 160 to 420 bar |
| TU3/E, TU2+E, TU4+E | With integrated cable | 1/4″ to 1/2″ | 160 to 420 bar |
Low temperature. R18 and CPLT5000 are listed down to −55 °C. Check the range for the selected part number, for both the fluid and working environment.
Quadruple assembly. The TU4 selection shown corresponds to R7 in 3/8″ at 160 bar. Do not confuse this profile with two twin hoses or four separate hoses: identify the construction fitted to the reel.
For an installation subject to marine classification, provide the documentation requirement. The ABS approval listed for part number 462 must be checked for the requested supply.
Electrical cables
| Family | Conductors | Specific feature |
|---|---|---|
| Cables for mobile installation | 3 to 36 | Textile, steel or Kevlar reinforcement |
| PUR-HF vertical cables | 4 to 36 | Specified breaking load |
| Hybrid cables | Circuits depending on part number | Servomotor, multi-conductor or bus depending on part number |
Protective conductor. Check the presence and identification of an earth conductor for the cable part number, even when it is a power cable.
Permissible loads. The breaking load of a vertical cable is not an operating or pulling load. Have the limits of the cable, its mounting and the cable pulling grip confirmed.
For a hybrid cable, specify the protocol and circuits to transmit. The hybrid cable chart distinguishes servomotor, multi-conductor, CANbus and Profinet configurations: do not transfer specifications from one cable type to another.
Compatibility checks
Permissible pressure of the assembly
Check the permissible hose pressure at the selected diameter, as well as that of the reel and its connections.
The equipped configuration must comply with the limit of each component. A pressure option on the reel does not increase the hose rating.
Bend radius determines what can be wound
A reel bends the hose continuously, and a hose cannot be wound tighter than its minimum radius. A 4SP in 3/4″ requires a 300 mm radius, hence a drum with a winding diameter of at least 600 mm.
Compare the minimum radius of the exact construction: listed values for a 1/4″ B1 and a 1SN are 30 and 100 mm respectively. Nominal diameter alone is not enough to check compatibility with the drum and guides.
Permissible cable power when wound and unwound
Consult the values for the part number in wound and unwound states. The 700 series lists several pairs of power ratings: no single ratio applies to all reels.
Accessories that protect the hose/cable assembly
Accessories are chosen according to routing and the hose/cable assembly. Their combination and position depend on the installation:
- The pulley redirects the assembly along the required axis.
- The roller guide surrounds it and prevents lateral drift.
- The articulated CDL guide limits the bend radius.
- The hose stop abuts the guide and limits travel.
Check the bend radius around the pulley and the groove width for the assembly. Use the guide’s usable dimensions and the limits of the selected hose.
What to send for a quotation
- For a replacement: full part number, photograph of the nameplate and views of the existing installation.
- Internal diameter, length and number of lines.
- Working pressure, pressure peaks and relief-valve setting where known.
- Minimum temperature at the workplace, not just fluid temperature.
- Available bend radius at the guide.
- For cable: voltage, current, number of conductors, whether an identified earth conductor is required.
- Standard or stainless-steel connection, and any classification requirement.
Quotations and technical advice on request.