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Technology

Contact us

Spiroflex d.o.o.
Ljudevita Gaja 7
35 208 Ruščica
Croatia

 

Phone: +385 35 _212420
Telefax: +385 35 _457105
e-mail: info@spiroflex.hr

 

Bellows forming

Spiroflex uses three kinds of processes for bellows forming:

  • Roll forming of bellows
  • Expanding mandrel (punch) forming of bellows
  • Hydraulic forming of bellows

Roll forming of bellows

Roll forming of bellows

 

In this mechanical disc forming process the rolling tools are milling the convolutions into the cylinder. The customer has the advantage to choose any internal diameter from DN15 to DN260 and this is the best type for small quantity production and short delivery time.
Furthermore there is a possibility to order from one to a few bellows at reasonable prices.

 

Mechanical roll forming of bellows

DN15 to DN800

 

Machine

mechanical roll forming machine

 

Base materials
longitudinally welded tubes

Expanding mandrel (punch) forming of bellows

Expanding mandrel (punch forming)

 

Spiroflex hydro-formed bellows have high elasticity, bend ability, There are two parts of forming processes, the first forms the tube into convoluted shape and the second is the rolling finishing process. The convolutions are punched individually and the thinning of bellows material is eliminated.

 

Expanding mandrel forming

DN100 to DN800


Machines

  • expanding mandrel forming machine
  • roll forming machine

 

Base materials

longitudinally welded tubes

Hydraulic forming of bellows

Hydroforming

 

Spiroflex hydro-formed bellows have high elasticity, bend ability, resistance to high pressure and vacuum. They are highly hermetic and resistant to low and high temperature.
Furthermore, the high technology and precise equipment has a possibility for mass production at acceptable prices and exceptional quality of products.

 

Spiroflex is proud of this improved, modern, and precise high technology.


Hydraulic forming

DN10 to DN90


Machine

hydraulic forming machine

 

Base material

welded and seamless deep drawn tubes