Archive | July, 2015

Taking part in STEXPO Exhibition 2015

Wednesday, July 29, 2015

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Stexpo Exhibition 2015

This year Galbiati Group will participate as a co-exhibitor, together with Viganò International, at the next 9th International Stainless Steel Exposition (STEXPO 2015), which will take place in Shanghai from the 31th August to the 2nd September 2015.

Held every two years, STEXPO is by far the largest stainless steel exhibition in Asia. During the last fifteen years, this Exhibition has made great contributions to China stainless steel industry. The number of exhibitors, exhibiting areas and visitors saw continuous growth.

Nowadays, China has become the largest and most important stainless steel producer in the world and the biggest stainless steel consumer with the largest volume and application fields in the world.

Galbiati will attend the Fair, as a company internationally recognized for the engineering and manufacturing of its mechanical constructions: deep hole drilling machines for heat exchangers tube plates and notching machines for blanking magnetic laminations.

Come and visit us at Hall N1, stand N1F06… We look forward to meeting you!

Tunnel Boring Machine Erectors

Tuesday, July 28, 2015

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Galbiati has recently developed two 7.5 ton- segment erectors for two hard rock double shield TBMs (Tunnel Boring Machines) designed for an excavation project outside Pfunds, Austria.

The segments erectors are made up of a fixed structure and a moving one, both made of electro-welded structural metalwork and machined on machine tools.

Tunnel Boring Machine Erectors

Tunnel Boring Machine Erectors

The fixed part consists of two longitudinal beams on which the sliding guides of wear-resistant material are mounted. The mobile part, instead, comprises a fixed ring and a rotating one controlled by two planetary drives with sprockets coupled with the fifth wheel coupling with internal teeth. The segments that make up the ring are 4: the “invert” segment, or base segment, that weighs 7.5 tons, and three segments (two shoulder segments and a key segment) each weighing 6 tons.

The erectors are equipped with a mechanical pick-up unit in order to grasp segments. The mechanical pick-up unit grasps and retains segments for the entire duration of the positioning operations with three independent movements:

  • Swinging = 5°
  • Pitch = 5°
  • Roll = 5°

A prob-drill is also provided with the erectors for carrying out additional drilling operations.

Below photos of the erectors completely assembled at Galbiati workshops.

Tunnel Boring Machine Erectors

Tunnel Boring Machine Erectors

Erectors technical data:

  • Total beams length = 7,000 mm
  • Overall rotation = 220° on both sides
  • Rotational speed = 2 rpm/minute
  • Maximum load  = 7,500 Kg
  • Weight = 32,000 Kg
  • Intrados diameter  = 6,300 mm

The Tunnel Boring machines in question, for which the segments erectors were intended, will have a cutter head 6.5 metres wide and will be used to drill a hydraulic tunnel for the promising hydroelectric project “Gemeinschaftskraftwerk Inn”. The project will involve the construction of a water supply network in Tyrol, comprising a hydraulic tunnel about 22.6 km long that will be drilled using two hard rock double shield TBMs. The network will take 4 years to complete (2014-2018) and the hydraulic tunnel will produce about 400 GWh of electricity a year from renewable sources, providing energy for more than a hundred thousand homes.

Cutterhead Supports for tunnel boring machines (TBMs)

Friday, July 17, 2015

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Galbiati has recently developed two bearing supports (Cutterhead Supports) for the cutter head of two hard rock double shield TBMs designed for an excavation project outside Pfunds, Austria.

Below are a few photos of the TBM bearing supports set up entirely in the assembly area of Galbiati’s workshop.

Cutterhead Supports for tunnel boring machines (TBMs)

Cutterhead Supports for tunnel boring machines (TBMs)

Some technical data of cutterhead supports: a bearing support 4 metres wide with a roller bearing 3.3 metres in diameter, 7 planetary gears with a transmitted power of 315 kW each, and a lubrication system. Gross weight: 60 tons.

The handling of the bearing supports (Cutterhead Supports) at Galbiati’s assembly shop and the subsequent packaging and transport of these was particularly complex due to the size and weight of the supports.

Below are a few photos of the TBM bearing supports during the stages of handling and packaging in the Galbiati’s assembly area.

Cutterhead Supports for tunnel boring machines (TBMs)

Cutterhead Supports for tunnel boring machines (TBMs)

The Tunnel Boring machines in question, for which the cutterhead supports were intended, will have a cutter head 6.5 metres wide and will be used to drill a hydraulic tunnel for the promising hydroelectric project Gemeinschaftskraftwerk Inn”. The project will involve the construction of a water supply network in Tyrol, comprising a hydraulic tunnel about 22.6 km long that will be drilled using two hard rock double shield TBMs. The network will take 4 years to complete (2014-2018) and the hydraulic tunnel will produce about 400 GWh of electricity a year from renewable sources, providing energy for more than a hundred thousand homes.

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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