Necking-In & Closing Machines

 

Let us build you the ideal machine for your application needs.

 
Support

Your Partner

We are Never Too Busy to Support You.

DENN - spun sample parts

Industry's Best

Our DENN CNC spinning and flow forming machines achieve superb surface finishes.

Performance Biolubes

BioLubes

High performance "Green" lubricants formulated to achieve maximum productivity at the lowest price. Fluids, Oils & Coolants.

DENN CNC Tube (Cylinder) Necking-In & Closing Machines

DENN (Industrias Puigjaner, s.a.) - over 130 years of building metal forming machine tools

necking-in technology

  • CNC controlled machines
  • user-friendly and feature-rich interactive graphical CAD-CAM programming system
  • heating system by induction, torches, friction, ... 
  • closing process without welding
  • optimized for pressure vessels: aluminum liners, fire extinguishers, SCBA, CNG, accumulator shells, industrial gas cylinders, gas storage cylinders, transportation cylinders, special cylinders, ...
  • with loading and unloading units; or with robot(s) on request
  • leak tight and no porosity
  • inert gas minimizes oxidation
  • remote site troubleshooting and programming
DENN necking-in / closing machine        DENN - necking in machine
DENN necking-in / closing machine 
  DENN - tube necking in / closing machine           DENN - tube necking in / closing
 
DENN CTA-720 CNC Tube (Cylinder) End Forming Machine
maximum tube (cylinder) diameter: 711 mm (28 inch)
maximum tube (cylinder) length: 13,600 mm (44.6 feet)
up to 40 mm (1.57 inch) tube (cylinder) wall thickness
DENN CTA-660 CNC tube end forming machine 
DENN - CNG liners samples              DENN - tube necking in / closing samples

DENN - tube necking in / closing samples    DENN - tube necking in / closing sample parts

DENN - tube necking in / closing samples    DENN - tube necking in / closing samples

 

 

MORE VIDEOS & PHOTOS 

 

 

Welcome
Welcome

Metal Spinning & Shear Forming Machines 

Shown on right: DENN eSPIN-100 CNC metal spinning & shear-forming machine 

Spun Sample parts

Shown on right: sample parts spun on DENN CNC spinning & shear-forming machines

DENN Flow Forming, Shear Forming, Spinning Machines

Shown on right: a heavy duty chipless metal forming machine for operations such as flow forming, shear forming and spinning

DENN CNC flow forming machines

Shown on right: a DENN CNC flow forming machine

DENN wheel forming machines

Shown on right: a DENN CNC spinning / flow forming machine for wheel manufacturing

DENN tube necking / in closing machines

Shown on right: a DENN CNC tube necking-in / closing machine

DENN trimming-beading-flanging-...- machines

Shown on right: a DENN CNC edge forming machine for polygonal workpieces

DENN circle and rings shears

Shown on right: a DENN circle and ring shear

Welcome
themed object

News Ticker

DENN data site  special offers  get in touch
back to top

Our Blog   Google+ link    Twitter link    sign up for eNews    go to Pinterest   YouTube Link    Precision Metalforming Association (PMA)  Member