Operator in a high-visibility vest at the control desk, guiding a steel plate under the press tool
Shipbuilding Press
Nieland PWP Portal Presses
PWP 100 and PWP 150 rolling presses for stretching hull panels
Nieland PWP portal presses focus on rolling and stretching hull panels, the step that forms bulbous, saddle-shaped, double-curved and twisted panels. Bending stays on an existing press brake or a Nieland SBP press.
Manufactured byNieland
Up to 20 mmPWP 100 plate rolling capacity
Up to 35 mmPWP 150 plate rolling capacity
2 processesRolling and stretching
Portal frameOpen press frame
Overview
A press built for the rolling step
Where the Nieland SBP presses combine bending and rolling, the PWP presses have a clear focus on rolling and stretching. They are engineered for the most specific part of the cold forming process, and it is this rolling and stretching that forms complex panels such as bulbous, saddle-shaped, double-curved and twisted hull panels.
Any bending or forming is done on a press brake the yard already has, used together with the PWP. A PWP can also be combined with an SBP press, which cuts the number of tool changes and lowers the investment.
Two models are available: the PWP 100 rolls plates up to 20 mm and the PWP 150 rolls plates up to 35 mm. Nieland designs and builds its presses in the Netherlands and supplies them as turnkey solutions with knowledge transfer and implementation support.
Applications
Panels formed with PWP
Rolling and stretching on the PWP gives hull panels their double curvature.
Double-curved hull panels
Rolling and stretching forms panels curved in two directions.
Bulbous and saddle-shaped panels
Complex bow and saddle shapes formed by stretching specific areas of the plate.
Twisted hull panels
Twisted panels shaped through controlled rolling and stretching.
Working with a press brake
Bending stays on the existing press brake while the PWP handles rolling.
Paired with an SBP press
Fewer tool changes and a lower investment when combined with an SBP press.
Features
Press features
- Portal press focused on rolling and stretching
- PWP 100 for plates up to 20 mm
- PWP 150 for plates up to 35 mm
- Use alongside an existing press brake for bending
- Can be combined with a Nieland SBP press
Benefits
What it brings to the shipyard
Complex hull panels formed through rolling and stretching
Fewer tool changes when combined with an SBP press
Lower investment by reusing an existing press brake
Turnkey delivery with knowledge transfer and implementation support
Rolling double-curved hull panels?
Share your plate thicknesses and panel shapes, and our Machinery team will help you choose between the Nieland PWP 100 and PWP 150.
Other Products in Shipbuilding Presses
Explore other products available within the same product category and open each page for complete technical details.
Nieland SBP Portal Presses
Shipbuilding press for bending, spot stretching and rolling double-curved hull panels, 2750 to 15000 kN.
Nieland SBK Frame Bending Machines
Frame bending machines for flat bulbs, T-bars and angle bars, with 275 to 500 ton pressing power.