MODEL: NW 42
ITEM NO: 22224
Drawings : M5339
Deck model file name and number: NW-01
Drive – hydraulic motors: 2 x Staffa B30PL
Core pull at max pressure : 18.4 ton
(210 bar)
Recommended oil supply

• flow range for motors: 210 – 250 l/min
• flow range for cylinder: 76 – 96 l/min
• pressure motor: 170 bar
  
• pressure cylinder: 160 bar
  
• power requirement - motors: 68-81 kW
  
• power requirement - cylinders: 24-30 kW

Performance at recommended supply:
Speed:
coreØ:

• Slow: 24 – 29 m/min
• Fast: N/A

midnetØ:

• Slow: 43 – 51 m/min
• Fast: N/A

Pull:
coreØ:

• Slow: 14.9 ton
• Fast: N/A

midnetØ:

• Slow: 8.5 ton
• Fast: N/A

Performance calculations:
flow per sheave rev:

• Slow: 7.6 l/rev
• Fast: N/A

torque per bar:

• Slow: 121.1 Nm/bar
• Fast: N/A

Sheave Ø - core / midnet /  Outside Ø: 282 / 495 / 990 mm
Sheave type: V-block
Hydraulic movements:

• Slew: 125°
  
• Sheave head tilt: 60°

Weight: 2920 kg

Features & options

Stainless Steel net contact area : Standard
Stainless Steel Pins/Bolts : Standard
Cylinder rods – double chrome:  Standard
Split sheaves : N/A

Staffa hydraulic motor : Standard
Sai hydraulic motor : Optional - Pull +2%

Two speeds : N/A
Head options : 42” Optional
Port Fishing :  Optional
Long mast : Optional
Power wheel: N/A