Steel Sheet Shears

Steel sheet shears

Monday, June 20, 2016

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Galbiati Group recently manufactured steel sheet shears for a painting plant in the USA.

The steel sheet shears, normally positioned at the outfeed of the system, cut the coil to measure, thereby guaranteeing absolute precision when cutting to length.

Technical data of shears:

  • Sheet thickness: from 0.25 to 2 mm
  • Total weight: 9.000 kg.

Below are photos and a video of shears during the test phases before shipment to the end-customer.

Mechanical Steel Shear

Thursday, May 20, 2010

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Mechanical Steel Shear pre-assembly at Galbiati Group workshop. The blades are actuated by the coordinated rotation of two eccentric shafts, driven by two independent gear trains, each one powered by 900 kW electric motors at 1000 rpm. Total weight: more than 650 ton.

Rocking shears at the end of pre-assembly in the Galbiati Group workshop

After pre-assembly and test at Galbiati Group workshop, the entire mechanical steel shear was dismantled in sub-assemblies and transported by sea to its final destination in India. On site, it was reassembled by qualified personnel and immediately entered production, to the complete satisfaction of the local engineers.

Rocking shears at the end of pre-assembly in the Galbiati Group workshop

The image below shows a detail of the preliminary assembly phase and tooth contact pattern check on the eccentric shaft coordinated rotation gear trains. Take special note of the oil film bearings and the thrust bearings, sized to support the enormous peak loads during the cutting phase.

Rocking shears at the end of pre-assembly in the Galbiati Group workshop

Rocking shears at the end of pre-assembly in the Galbiati Group workshop

The image shows machining of the welded steel lower frame on a 120-ton rotating table CNC boring machine.

See the video

See also:

Strip Pendular Shear

Hydraulic Rocking Shears

Gear Trains for Mechanical Rocking Shears

Mechanical Rocking shear – Video

Wednesday, May 19, 2010

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Complete Rocking Shear Assembly . 5000 mm max. sheet width, up to 50 mm thick. Total weight of assembled shears: over 650 ton.

See also:

Mechanical Rocking Shear

Hydraulic Rocking Shears

Gear Trains for Mechanical Drive Shears

Pendular Shears for Continuous Thin Sheet Metal Cutting

Tuesday, May 18, 2010

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Pendular shears for continuous thin sheet metal cutting up to 3 m width at the end of pre-assembly in Galbiati Group workshop. The blade is driven by the rotation of the entire blade-holder unit on oil film bearing journals. All drives are hydraulic/mechanical coordinated by a computer system in order to adapt to the wide variety of sheet to be cut.

All drives are hydraulic/mechanical coordinated by a computer system in order to adapt to the wide variety of sheet to be cut.

Pendular shears for continuous cutting of thin sheet

See also:

Mechanical Rocking Shear

Mechanical Rocking Shear – Video

Hydraulic Rocking Shears

Gear Trains for Mechanical Rocking Shear

Hydraulic Rocking Shears

Monday, May 17, 2010

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Two hydraulic rocking shears at the end of the pre-assembly phase in the Galbiati Group workshop.

The blade is driven by the coordinated movement of two, approx. 1000 mm diameter, hydraulically driven pistons. Rated up to 450 bar. Total weight: more than 450 ton each.

Hydraulic Rocking Shears

See also:

Mechanical Rocking Shear

Mechanical Rocking Shear – Video

Pendular shear for thin sheets

Gear Trains for Mechanical Rocking Shear

Gear Trains for Mechanical Drive Shears

Sunday, May 16, 2010

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In addition to co-designing complete shears in close cooperation with our customers, Galbiati Group can, if needed, supply only the gear trains for mechanical shears (rocking shears, swing blade shears, reciprocating shears, pendular shears, divide shears, etc.).

In these cases, as the frame for the gear train is not available, the gear seats are simulated with axels on the static rotation bench in order to make certain that geometry, contact surface, and backlash are correct.

Gear Trains for Mechanical Drive Shears

See also:

Mechanical Rocking Shear

Mechanical Rocking Shear – Video

Pendular shear for thin sheets

Gear Trains for Mechanical Rocking Shear

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Galbiati Group - Engineering & Machining

23848 Oggiono (Lc) Via Cà Bianca Pascolo, 26 Italy | Fax +39 341.2633300 | s.origgi@galbiatigroup.it
P.Iva: 03301540963 | Capitale sociale: 500.000 euro | REA: MI-1665349
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