Hydraulic Steering
Systems
Systems
Double Cylindered Steering Systems
DATA manufactures double cylindered hydraulic steering systems for private yachts, mega yachts, commercial ships, offshore support vessels, and naval vessels. These systems are available in torque ranges from 1,100 daN·m to 55,000 daN·m (550 kN·m).
They offer ong-lasting performance, low maintenance requirements, and a design compliant with all international classification society rules.
DDM 12000
DDM 2000
DDM 55000
DDS 8000x2
DDM 2x 1000
Technical Specifications
| Single Tiller | Double Tiller | Nominal Torque @35° (daN·m) | Max. Torque @35° (daN·m) | Nominal Working Pressure (bar) | Rudder Angle | HPU Tank Capacity (lt.) | El. Motor Power (50 Hz–S1) (kW) | Total Cylinder Displacement (cm³) | Hydraulic Cylinders (rod-piston-strok) mm |
|---|---|---|---|---|---|---|---|---|---|
|
DDM 1100 |
DDM 2×550 |
1100 |
1375 |
103 |
2×35° |
27 / 2×27 |
1.5 / 2×1.5 |
1495 |
ø32–ø63–275 |
|
DDM 1600 |
DDM 2×800 |
1600 |
2000 |
90 |
2×35° |
40 / 2×40 |
2.2 / 2×2.2 |
2503 |
ø35–ø80–275 |
|
DDM 2000 |
DDM 2×1000 |
2000 |
2500 |
99 |
2×35° |
40 / 2×40 |
2 / 2×2.2 |
2825 |
ø40–ø80–321 |
|
DDM 3000 |
DDM 2×1500 |
3000 |
3750 |
95 |
2×35° |
63 / 2×70 |
3 / 2×3 |
4415 |
ø50–ø100–321 |
|
DDM 4000 |
DDM 2×2000 |
4000 |
5000 |
95 |
2×35° |
90 / 2×90 |
4 / 2×4 |
5909 |
ø55–ø115–321 |
|
DDM 6000 |
DDM 2×3000 |
6000 |
7500 |
99 |
2×35° |
2×110 |
2×5.5 |
8522 |
ø65–ø125–402 |
|
DDM 8000 |
DDM 2×4000 |
8000 |
10000 |
110 |
2×35° |
2×120 |
2×5.5 |
10230 |
ø65–ø125–482 |
|
DDM 10000 |
DDM 2×5000 |
10000 |
12500 |
120 |
2×35° |
2×130 |
2×7.5 |
11690 |
ø65–ø125–551 |
|
DDM 12000 |
DDM 2×6000 |
12000 |
15000 |
123 |
2×35° |
2×165 |
2×11 |
13610 |
ø75–ø140–516 |
|
DDM 16000 |
DDM 2×8000 |
16000 |
20000 |
122 |
2×35° |
2×200 |
2×11 |
18320 |
ø80–ø140–711 |
|
DDM 21000 |
DDM 2×10500 |
21000 |
26250 |
122 |
2×35° |
2×230 |
2×15 |
24080 |
ø90–ø160–711 |
|
DDM 27000 |
DDM 2×13500 |
27000 |
33750 |
124 |
2×35° |
2×300 |
2×18.5 |
30610 |
ø100–ø180–711 |
|
DDM 33000 |
DDM 2×16500 |
33000 |
41250 |
133 |
2×35° |
2×330 |
2×22 |
34660 |
ø110–ø180–837 |
|
DDM 44000 |
DDM 2×22000 |
44000 |
55000 |
130 |
2×35° |
2×300 |
2×30 |
47280 |
ø120–ø200–918 |
|
DDM 55000 |
DDM 2×27500 |
55000 |
68750 |
122 |
2×35° |
2×300 |
2×37 |
62900 |
ø125–ø220–987 |
Features
- High reliability
- Easy maintenance, and installation.
- Designed at medium pressures for heavy duty use.
- 100% torque with 2 cylinders + 1 pump and 50% torque with 1 cylinder + 1 pump.
- Bronze rudder axial bearings
- Composite rudder radial bearings
- Self-aligning spherical bearings at cylinder ends.
- Hard chrome plated, precision ground piston rod
- Oversized piston and rod bearings
- Micro-honed, seamless and high-strength cylinder tube
- Heavy duty and high pressure resistant sealing elements
- Piston rod wiper seal
- Tapered locking tiller–pin connection for easy assembly and disassembly.
- Direct HPU mounting on steering systems for DDM 6000 and above models.
- First-class hydraulic components from well-known brands
- Large oil tanks designed for efficient heat transfer and self-cooling.
- Equipped with all required alarm sensors in accordance with classification society rules.
Options
- 45° or 65° rudder angle (depending on model)
- Bolted two-piece (split type) tiller design
- Various tiller and tiller bore configurations
- Rudder stock–tiller connection available as keyed, hydraulic keyless, or clamping set type
- Independent cylinder configuration connected via tie bar
- Custom designs available based on customer requirements
- HPU options with fixed or variable displacement pumps
- Proportional valve control option
- Cooling system via seawater or air heat exchanger
- Soft starter or frequency converter starter option
- Customized HPU solutions adaptable to specific client needs
- Automatic bearing greasing pump system
- Automatic isolation system for tankers of 10,000 gross tons and above
