Ferrous Tube / Pipe

In the last few years Olimpia 80 tube mills has improved the range of the entry sections of his tube mills, with different solutions for automatic loading devices for strips.

We can propose fully or semi-automatic solutions, starting from two or four arms coil capstan (up to 120 t total capacity) as storage for the strips.

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Different types of coil car, or automatic crane systems can move each strip from the capstan directly on the decoiler, single or double heads, according to the customer necessity;

Every system can use the automatic strip centering system on the decoiler mandrel.

Each different system is engineered in order to optimize the layout and the customer needs.

Olimpia 80 every year invest a lot in innovation technologies, adding more sophisticated solutions and even simple and complete lines to guarantee the same quality result reducing the investment costs.

With this policy, more customers can appreciate our technologies and can have more opportunity to choose in a very wide range of solutions.

Wednesday, 22 July 2015 09:25

OLIMPIA 80 Srl laser welding system

Olimpia 80 Srl is an Italian company specialized in engineering and manufacture complete tube mills for welded tubes, since 1980.

Recently we install and put in operation one complete tube mill for stainless steel tubes to one of the major tubes manufacturer in China.

The tube mill can produce the OD range from 12 up to 50,8 mm, in stainless steel quality AISI 300 and 400, Duplex and Nickel Alloy.

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Olimpia 80 tube mill recently installed in China

The welding system is LASER.

The line is complete with Double Decoiler, Strip End Welder, Vertical Strip Accumulator, Strip Edge preparation, Forming and Welding sections, LASER generator (6 kW), Bead Grinder (OLIMPIA 80 patented), Electro Magnetic Bead Roller, Sizing Group before and after the complete inline Bright Annealing system, Eddy Current control, Straightening, Laser Diameter control system, Cut-off by Cold Saw, Run out and Unloading table up to 12 m length.

All the machines are engineered and manufactured in our factory in Italy, and even the different roll sets delivered with the tube mill, are completely produced by us.

The Asian market is one of the important final destinations of our tube mills.

Recently we finalized several orders in this part of the world, even in Myanmar for Carbon steel tubes and Bangladesh for Stainless steel tube, for HF welded sections; when the customers want to produce high quality welded tubes for internal market or for the export market, our tube mills are very appreciated in all over the world.

We have a big experiences in productions of LASER stainless steel welding tubes, even because in one of the company of our group we produce Stainless Steel tubes with this technology. In this company, named OLIMPIA INOX, we have installed 5 complete tube mills with LASER welding system, to cover the OD range from 6 up to 114 mm, up to 5 mm wall thickness. Therefore when the customers visit us, can see in operation the different lines, where we produce tubes every days, and we tests the new technical solutions.

Published inProduction

The last generation of Linear Cage Forming technologies has been put into operation in North Europe, in one of the first manufacturer of high quality stainless steel tubes in the world.

It is a complete tube mill, including the surface finishing, tube ends facing, unloading and packaging sections.

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This fully automatic tube mill, can produce square tubes from 40x40 up to 120x120 mm, rectangular tubes from 50 x 40 to 180x60 mm in a thickness range from 2 mm to 8 mm in Stainless Steel Austenitic, Ferritic and Duplex grades.

The max mill speed is 80 m/min

With this composition the mill can produce all the square and rectangular tubes within the size range, without change of any rolls in Forming, Welding, Sizing, Straightening and clamp jaws in Cut Off.  That means total elimination of all cost for roll sets.

The main advantages of this technology are:

  • Facility and rapidity in changing the profiles dimensions
  • Very simple and easy maintenance
  • Simplicity in the software utilization

With this innovative solution, the mill makes it easy to produce both square and rectangular tubes by means of a computerized control, where all data are stored in order to produce in the best way all the tube sizes in the range

The PLC records all the utilized data and it is possible to create particular “shapes” with different angles: from the PC it is possible to see the “tube flower” of the tubes one intends to produce.

The average time for changing tube set-up dimensions is around 10 minutes.

Average saving on raw material (strips) compare traditional tube mills: 5-7%

All the electrical equipment and motorizations are engineered in order to save energy, recovery power and reuse it in the line circuit.

On October 2014, the Italian company Olimpia 80 Tube Mills has completed the commissioning of a fully automatic tube mill, to produce Carbon steel (max T.S. up to 1400 N/mm²) and even Ferritic Stainless Steel tubes.

The tube mill have a capacity to produce round tube and correlated sections, from OD 30 mm up to OD 88.9 mm in a thickness range from 0.8 mm up to 4 mm.

The max production speed is 130 m/min.

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Detail of the Universal Driven Turk’s Heads rolls

The tube mill is composed by:

- Single Decoiler and Automatic coil car for strip loading

- Coil opener with strip flattener                                     

- Automatic Strip End welder                                                          

- Horizontal Strip Accumulator complete at the exit side of a flying shear for strip cutting

- Strip edge preparation unit           

- The complete LINEAR CAGE Forming group for round tubes (PATENTED BY OLIMPIA80)                                          

- Weld box with HF WELDER 350 kW solid state                                        

- Outside scarfing + chopper roll and Inside scarfing

- Cooling section                                               

- “Traditional” Sizing and straightening unit (for round tubes)

- Universal Driven Turk’s Heads

- Flying Cut-off device by Cold Disk Saw (HSS – TCT)

This Tube mill include some special features as a set of Cassette for Quick roll Change on rails, for welding, sizing and straightening (traditional) units; this system reduce drastically the waiting time when is necessary to change the production size.

The best important news is the Universal Driven Turk’s Heads, positioned after the traditional sizing unit.

The main capacity of the installed machine is from 20x20 (30x10) mm up to 70x70 (100x40) mm, in a thickness range from 0,8 up to 4 mm. With this system the tube mill will produce the full tube range (square and rectangular shapes) without changing any single roll in the sizing turk’s head stands.

The complete group is composed of:

The straightening unit is not motorized and it is placed between the last two heads.

Thanks to the software, the self-centring system allows to place the heads in position 0 (zero) depending on the tube’s size.

The setting for the straightening is made through a control panel placed in front of the head.

This system was engineered to have the possibility to install the complete device even in the existing line alternatively or consequently to a traditional turk’s head.

A)    Detail of the Universal Driven Turk’s Heads rolls

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