Archive | May, 2010

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 components for satellite dishes and radio telescopes

Thursday, May 20, 2010

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Elevating segments with high precision teeth produced using 5-axes CNC machine tools. Pitch adjusted between two neighboring segments. Chord readings inspected on the entire set of 6 contiguous segments (nominal reference diameter of the gear greater than 28 m).

Elevating segments with high precision teethElevating segments with high precision teeth

Assembly of Elevation carriage and inspection of radial and axial run-out of the opposing rollers.

Assembly of Elevation carriage and inspection of radial

Assembly and inspection of the LMT (Large Milimetrical Telescope) radio telescope prior to shipment to its site of installation in Sierra Negra, Mexico.

Assembly of Elevation carriage

Assembly of special elevation system with permanent magnet linear motor.

Assembly of Elevation carriage

High Tonnage Hydraulic Mechanical Presses

Thursday, May 20, 2010

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Construction of hydraulic mechanical presses, including hydraulic and pneumatic process systems and wiring, used in the manufacturing industry. Hydraulic mechanical presses built to customer design specifications for the production of automotive panels.

Operating capacity: 350 ton.

Large Tonnage Hydraulic Mechanical Presses

Hydraulic mechanical press built to customer design specifications for the production of structural insulated panels including process steam lines.
Holding tonnage equal to 320 ton.

Large Tonnage Hydraulic Mechanical Presses

Hydraulic mechanical press built to customer design specifications for tryout of dies for the automotive industry.

Operating capacity: 300 ton.

Large Tonnage Hydraulic Mechanical Presses

Cutterhead supports for TBM (tunnel boring machines)

Thursday, May 20, 2010

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Cutterhead supports of the TBM (Tunnel Boring Machine) rotating head, excavation diameter from 4 m to more than 12 m. Cutterhead support diameter 5400 mm, with 4000 mm diameter roller bearing and ring gear module 22, nine helical gears with module 22 nine planetary gears with module 22 mm output pinion and lubricating system. Overall weight of cutterhead supports: 100 ton.

Cutteread supports used on TBM machine for excavating water conduits in Ethiopia and China.

Cutter head of the TBM (Tunnel Boring Machine)

Cutter head of the TBM (Tunnel Boring Machine)

“Skin-Pass” Stand

Wednesday, May 19, 2010

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Fully assembled “Skin-Pass” stand including piping and wiring; total weight 200 ton. See also:

Fully assembled “Skin-Pass” mill

Mills: machining and shoulder roughing

Mills: pre-assembly, piping and inspections

Mill Stand Chokes, AG Cylinders, and Accessories

Sheet mill: 4,300 mm width – Video

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

Azimuth rotation controls: Movement and Elevation

Wednesday, May 19, 2010

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Chord measurement of the Azimuth rotation segments for the 64 m diameter radio telescope for the SRT (Sardinia Radio Telescope) project.

Azimuth rotation controls

High stiffness slides for the support and Azimuth rotation of the entire SRT radio telescope. Photo taken during assembly and inspection in our workshop. The slides were installed on site in San Basilio, Sardinia (Italy).

High stiffness slides for the support and Azimuth rotationSlides for the support and Azimuth rotation of the entire SRT

High torsional stiffness planetary gears with self-supporting pinion for Azimuth movement and elevation.

Planetary gears

Aluminium Hot Mill Stand

Tuesday, May 18, 2010

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Complete manufacturing and preassembly of a max. 4300 mm wide aluminum hot strip mill stand. Total weight of the fully assembled aluminium hot mill stand: more than 250 ton.

Wide aluminum hot sheet millWide aluminum hot sheet mill

See also:

Mills: machining and shoulder roughing

Mills: pre-assembly, piping and inspections

Mill Stand Chokes, AG Cylinders, and Accessories

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

Structures – Base and Yoke

Tuesday, May 18, 2010

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Radio telescope cabin made entirely from carbon-fiber composite materials produced during assembly.

Radio telescope control station

Assembly of composite BUS (Back Up Structure), 12 m diameter radio telescope.

Parabolic panels of the radio telescope

Antennas and Radio Telescopes automotive industry Azimuth rotation segments Base Plates Best Supplier Siemens Vai blanking cut to length lines Brushing machines CAM2 Laser Tracker Xi system CNC Coil Processing Lines components for nuclear energy Crop shear Crop Shears Cut-to-Length Lines Cutter head Cutting Sheet CWIEME Berlin 2012 Fair Cwieme Berlin 2015 energy Energy production Erector for TBM Feeding Lines gear trains Hannover Messe 2011 hydraulic press mechanical press oil film bearings Packing Lines Pendular Shears Piping rolling mills Pre-assembly rolling mills Presses for blanking lamination Process Lines radio telescope Rails revamping complete lines revamping single machine Rocking shears Rolling mills Segment Erector for TBM slitting lines Steel Sheet Shears TBM tensio levelling system Tunnel Boring Machines
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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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