Sletta Verft AS
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Skrevet: 12.07.2010
Warping winches, capstans, pumps, side thrusters and more

1 off Warping winch 1-VA-40-AHB, produced in aluminium and stainless steel.
Drum in galvanized steel.
Fixed drum with automatic hydraulic multiple-disk brake integrated in gear.
Maneuvre valve fitted on winch.
Drum dimensions:
| D = |
1400 mm |
| d = |
400 mm |
| L = |
1500 mm |
Wire out at lower edge of drum.
Capasity 430m Ø 64mm rope
Brake power 50 tons
Pulling force and pulling speed at 230 bar and 117 l/min, ie approx 49 kW.
With stepless variable motor we have these extremes considering speed and force:
Pulling force / Pulling speed table
| |
100% of motor volume |
20% of motor volume |
| |
maximum power |
maximum speed |
| Pulling force/speed on empty drum: |
40 tons/ 5,2m/min |
8tons/ 26 m/min |
| Pulling force/speed on mid drum* |
19 tons/ 11m/min |
3,8 tons/ 55m/min |
| Pulling force/speed on full drum |
14 tons/ 15 m/min |
2,7 tons/ 78 m/min |
*We calculate mid drum as layer 5 approximately, with 200 metres of hawser on drum.
1 off Warping winch type: 1-AV-15,0-AHB
in seawater resistant aluminium and stainless steel.
The winch has a fixed drum and automatic hydraulic brake integrated in gear.
Delivered with over centre valve/shock valve and maneuvre valve.
Maneuvre valve type PVG 32 for variable pump delivered fitted on winch.
Drum dimensions:
| D = |
1200 mm |
| d = |
280 mm |
| L = |
1500 mm |
Capacity: 450 m Ø 56 mm rope.
| Pulling force on 1.layer: |
15 tons at 220 bar. |
| Pulling force on last layer: |
3,8 tons at 220 bar. |
| Pulling speed mid drum: |
40 m/min at 130 liter/min |
| Brake force: |
18 tons |
Variable axial piston motor with torque regulator gives a winch caracteristic with low speed at high pull,
and high speed at low pull.
Automatic and stepless transition, -torque regulated.
1 off Towing Hook with D.N.V. load-test-witness certificate only.
Mampaey Quick Release Harbour type Towing Hook, type MXX.030.
Capacity : 200 kN S.W.L.
Dummy load : 400 kN
Complete with standard connection swivel ,manual and hydraulic release.
D.N.V. load-test-witness-certificate only.
Weight 130kg

1 off common frame with 15 tons winch, 40 tons winch and towing hook.
Towing hook fitted level with centre of the 40 tons winch drum.
Winch frame for fitting in between main deck and upper deck.
Load cells fitted in each corner for measuring total tension from arrangement.
Sensors and PLS for measuring rope length on 40 tonner.
Panel in wheel house with display for tension from the whole arrangement as well as length of rope
on 40 tonner.
El activation of maneuvre valves for operation from radio control.
2 off Capstan type CA-1,5-220-AHB-SM
Capstans delivered with bracket for fitting in bulkhead.
Material in aluminium and stainless steel.
Automatic built-in hydraulic brake in wheel gear.
Warphead dimensions:
| D = |
290 mm |
| d = |
220 mm |
| H = |
260 mm |
Pulling force : 1,5 t. at 200 bar
Pulling speed : 20 m/min at 19 litres/min
Maneuvre valve type Hawe.
2 off Rexroth A11 VO 130cc variable hydraulic pumps with flow control
and L.S. control for running of all hydraulics.
Delivered with pressure filter, return filter, security valve, manometer and cooler.
Working pressure 350 bar, yielding 2x190 l/min at 1500 rpm.
4 off thruster type S-40-50-V40
yielding 40 Hp at 280 bar and 66 litres/min. (1670 rpm)
| Propeller : |
D = |
400 mm |
| Tunnel : |
D = |
432 mm |
Tunnels in aluminium 15mm 5083. Length 1,0 m.
Propeller in nickelbronze, externally adjustable.
2 off Maneuvre valve. For variable system, pressure regulation, electric activation.
1 off Control panel.
2 off "slave" panel. |