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Salvagnini P4-2512

Automated panel bending on a Salvagnini P4

A fully automatic CNC panel bender from Salvagnini, the company that invented panel bending. It forms flanges on all four sides of a sheet in one automatic cycle — up or down, with no tool changes between parts — so panels, covers and enclosure parts come out fast, square and consistent.
Send your files for a quoteTalk to our team
Max bend length
98″
Max flange height
5″
Mild steel
14 ga
Stainless steel
16 ga
A Salvagnini P4 automatic panel bender

How a panel bender works

On a panel bender the sheet lies flat. A blank holder clamps it, and bending blades fold each edge up or down while a manipulator turns the sheet to the next side. All four sides of a panel are formed in one automatic cycle — the part never has to be flipped by hand, and there are no tool changes between parts.

Because setup is automatic, short runs and one-offs cost less to set up than on a press brake, and every part matches the first one.

  • Bends all four sides of a panel in one automatic cycle — a manipulator turns the sheet between bends
  • Up and down bends (positive and negative) without flipping the part
  • Universal tooling and an automatic blank holder: no manual tool changes between parts, so short runs and one-offs cost less to set up
  • Consistent angles and dimensions from the first part to the last
  • The sheet stays flat and clamped while it is bent — less handling and fewer marks on visible surfaces

Parts that suit panel bending

Longer parts, deeper flanges or heavier material go on our 10 ft Amada press brake instead. You don’t need to choose: we pick the right machine for every part.

  • Electrical enclosures
  • Panels & doors
  • Covers & lids
  • Trays & pans
  • Cabinets & housings
  • Box and channel shapes

Designing for the P4

  • Put the flanges on the outside edges of a flat blank — each side can bend up or down.
  • Keep each flange within 5″ high and each bend line within 98″ long.
  • Add a small relief notch where two flanges meet at a corner.
  • Mild steel up to 14 ga, stainless steel up to 16 ga, aluminum up to ⅛″.

In our shop

The machines that do the work

Questions

A press brake bends a part between a punch and a die, one bend at a time, and the operator handles the part between bends. A panel bender clamps the flat sheet and folds its edges with blades while a manipulator turns it, so all four sides are bent automatically without tool changes. Panels and enclosure parts come out faster and more consistent on a panel bender; long, thick or deeply formed parts suit the press brake.

Bend lines up to 98″ (2500 mm) long and flanges up to 5″ (127 mm) high, in mild steel up to 14 ga, stainless steel up to 16 ga and aluminum up to ⅛″. What fits depends on the part’s shape, so send your file and we’ll confirm.

Local to St. Louis and the Metro East

Our shop is at 604 S Mulberry St, Millstadt, IL 62260 — about 20 minutes from downtown St. Louis and close to Belleville, Columbia and Waterloo. Pick your parts up at the shop (Mon–Fri · 9am–5pm) or ask us about shipping.

Directions and contact

Get it made

Send us your part

Send a DXF, STEP or STL file, any other CAD file, a PDF drawing or a sketch — our team reviews every part and gets back to you with a quote.

Send your files for a quoteTalk to our team