August2011 - download the newsletter - with this link

Vitari SH - Automatic Chain Welding Machine

The SH series of chain welding machines, allow to weld chains in one single stage by using a device which positions the chain link in the precise welding position. These machines can weld both high alloy or high resistance steel chains and cater for low and mild carbon, manganese and other diverse steel grades for chain making.

The quality of the weld is of the highest standards available today due to the welding control system operating with medium frequency technology (1000 Hz). This allows a constant and high quality weld at all times and is a significant improvement (as well as a necessity for these high grade materials), compared to the standard frequency welding (50-60 Hz) available on our other chain welding models.

The quality of the weld is also guaranteed because the welding operation occurs on one machine instead of the conventional two machines. Therefore, once parameters are set and stored these will be suitable for all welded chain link requirements. The machine is equipped with a computer that enables monitoring all machine parameters even whilst the machine is operating and moreover, it allows loading and storing of every single type of chain parameter. The electrode unit is now fully adjustable as it now can be tilted upwards enabling full operator access when needing to intervene on the welding tools. The hot burr on the chain-link is removed by means of an intermittent tooling device which intervenes longitudinally along the chain-link leaving a burr-free finish. All machines are equipped with conventional safety devices in order to safeguard the principal parts of the machine.

Rebuilding the North American Power Transmission Infrastructure

As North America prepares to rebuild the crumbling infrastructure and increase the quantity of power transmission lines, decisions need to be made about how to get the power from the generation plants to the places it is required. Overhead transmission lines of 400 KV have significant environment impact. Therefore underground power lines are the best option. Underground transmission lines, Milliken Cables, are used when high voltage underground transmission when servicing highly populated areas around Cities, Airports, Power Generations plants, etc.

These conductors are large cross sections are obtained with composition of sectors. The pre-spiraled sectors are made separately on Rigid Stranders and as second phase are composed into one big cross section with the drum twisting line. The Milliken conductor is composed with 4 to 7 pre-spiraled compacted sectors. Each sector is separated from the adjacent with insulating or semi-conductive tapes. Frequently, a central round conductor is used and a water blocking tape is placed between the sectors layers. Cortinovis has developed rotating machines specifically designed to handle these large conductors. First the Cortinovis Rigid Cage Strander with rotating compacting heads and then the sector assembly using the Cortinovis Drum Twister with Rotating Payoffs.

Editorial Tube and Pipe 2011

Eurolls is the world leader in the design and construction of roll tooling made of steel, alloys and sintered materials for the tube & pipe industry. Over the last few months of 2010 and the first half of 2011 Eurolls has strengthened its presence in the world market by securing large-scale contracts in terms of volume, and prestige. Major corporations, who themselves are world leaders in their respective field of manufacturing tubes for various applications, have chosen Eurolls as their roll tooling partner for major projects.

Eurolls has been manufacturing roll tooling for markets worldwide for over 20 years. Over the last 5 years, Eurolls has established branches in Brazil and Mexico, and has seen the volume of work increased significantly at these respective subsidiaries over the last two years. Although Eurolls De Mexico and Eurolls De Brazil specialize in the sales, manufacturing, and regrinding services for rolls and cassettes for the Wire sector, the volume of work has significantly increased in terms of tooling for the Tube/Pipe sector. This is good news for those Tubing and Piping manufacturers who are in need of local production of tools with the same quality that they can to expect from the parent company.

Eurolls has recently integrated, within its own facility, the latest generation of furnaces for heat treatment, which gives them an advantage when it comes to quality control. Eurolls is extremely careful when calculating every step of the manufacturing cycle from selecting the very best raw materials, to developing their own design and manufacturing techniques, all the way to the production floor where strict quality controls and certifications are instituted in each and every phase of the roll manufacturing process.

February 2011 - download the newsletter - with this link

Cortinovis Machinery, Eurolls, Sictra, Teurema. & Vitari Exhibiting at InterWire 2011 Atlanta,GA - Booth Number 1739

Please plan on visiting us at booth #1739 where we will present the various product offerings of the Eurolls Group. The event is being held from May 2-5, 2011 at the Georgia World Congress Center in Atlanta Georgia.

Our facility in Monterey, Mexico (EUROLLS DE MEXICO) can handle the production of new TUNGSTEN CARBIDE rollers and can regrind worn rolls that are no longer in tolerance.

Sictra Intergrated with Cortinovis Machinery SpA

In 2008 The Eurolls Group Udine, Italy announced that Sictra had become part of The Eurolls Group. Sictra has a long tradition and wide knowledge and experience in the manufacturing of wire drawing equipment for copper and aluminum.

Since the acquisition, Eurolls has proposed integrated product lines, using Sictra and Cortinovis Machinery, starting from drawing of copper or aluminium rod, through strand production, to laying‐up and armoring of finished cables. The wire and cable market reacted very positively to this strategic decision. The result has been a significant increase in both the volume of product, greater number of customers and an overall increase in market share for both technologies.

We are pleased to announce that we have taken the next logical step on the strategic path initiated in 2008. The Sictra drawing lines, which precede the Cortinovis stranding lines, have been fully integrated to provide complete plants for the nonferrous wire and electric cable market.

The formation of a single company will surround Sictra with a solid organizational structure whose ultimate goal is to provide its customers with high value‐added products and exceptional customer service.

On February 1, 2011, Cortinovis Machinery S.p.A. acquired the business and operating unit of Sictra Srl forming a corporation having two divisions:

• Division of drawing lines for nonferrous (product line Sictra)
• Division of stranding lines (typical product Cortinovis Machinery)

The operating unit of Sictra has been relocated to our modern production facility in Valbrembo. The necessary investments have been made to create additional office space and expand our production capabilities to integrate the discrete production needs of Sictra into our industrial group. Sictra staff can now take advantage of the Cortinovis facilities, technical departments, quality control, and technical service assistance, in order to focus on enhancing the Sictra technology and experience developed over several decades of activity. Sictra has also been integrated into the ERP system taking further advantage of the strong synergies between the two companies We are confident that the forming of the two divisions will have a positive impact on our customers in terms of product, service and competitiveness.

We also like to point out that your current Cortinovis and Sictra contacts in the respective commercial departments, spare parts department, and technical assistance personnel will direct your inquiries to the technical specialists in each area of expertise.

We look forward to hearing from you to discuss your future projects which will include the need for drawing lines or stranding lines.

Best regards
Roberto Minozzi Andrea Camparada
President Managing Director

The Sictra Trolley Wire Drawing line

With the increasing requirement for high speed railways, the demands being placed on the technical features of the shaped Trolley Wire are also becoming stringent.

For example; the high tensile copper alloys such as copper silver and copper magnesium which are used to extend the life of the line and to withstand the higher friction due to the increased trains speed.

Sictra, a division of Cortinovis Machinery specializing in drawing lines for non ferrous wire for many years, manufactures a dedicated drawing line to draw shaped wire required for Trolley lines. This proven Sictra technology continuously evolves to match the increased cross sections of the inlet rod as well as the higher tensile strength requirements of the finished product.

A typical line configuration to produce 150 mm2 Trolley Wire consists of following:

• Copper rod pay off stand, rotating type, for up to 6 Metric Ton coils
• Heavy duty adjustable wire straightener
• Four capstan drawing sections with up to 1200 mm capstan diameter.
• Capstans are internally water cooled and with further spray emulsion outer cooling.
• Transmission with heavy duty helical gears.
• Die holders with guiding die (Sictra unique design) and separate drawing oil cooling system
• High precision portal take up with self traversing movement.

Dedicated process software manages the speed synchronization of the four capstans via encoders controlling the amount of slip. All the motors are AC utilizing the most modern Siemens Sinamics Inverters with “DRIVE CLiQ” automatic interface parameterization.

Cortinovis Machinery S.p.A. Cortinovis Machinery S.p.A.

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