Gear drives and gears for cement and solid milling industry

Large riding rings and trunnion rollers for grinding kilns and mills

Wednesday, June 8, 2016

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Galbiati Group realized the complete supply of two large size riding rings and trunnion rollers mainly intended for grinding kilns and mills.

Technical details of riding rings:

  • External diameter: 5,050 mm
  • Material: hardened and tempered 42CD4 Steel
  • Total weight: 110 ton.

Below photos of two riding rings and trunnion rollers before shipment to the final customer.

Large riding rings and trunnion rollers for kilns and mills

Large riding rings and trunnion rollers for kilns and mills

Large riding rings and trunnion rollers for kilns and mills

Large Girth Gear for mining industry

Friday, April 1, 2016

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Manufacturing  of  large size girth gear and pinion for mining field.

Technical details:

  • Wheel diameter: 4,100 mm
  • Module: 28

Large Girth Gear for mining industry

Galbiati Group realized the complete supply of one large size girth gear and pinion mainly designed for riding ring rotary granule for mining field.

The girth gear consists of two congruent half-rings and of forged, turned and joined components to perform machining operations.

Below some photos about girth gear and pinion before shipment to the final customer.

Large Girth Gear for mining industry

Large pinion for mining industryLarge pinion for mining industry

Gearboxes for cement industry

Tuesday, May 28, 2013

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Galbiati Group manufactures main and auxiliary gear drives for mills and kilns for cement industry.

Galbiati Group recently implemented a main gear drive for mills and kilns  addressed to the cement industry with a rigid electro-welded housing welded and machined on CNC machine tools of modern design.

The cement gearbox is driven by two electric motors 2500 HP 750 rpm, H.t=3,3Kv with a total weight of 80.000 Kg and a transmission ratio of 48:1.

Gearbox for cement industry

Cement Gears are made from high-quality forged rims in electro-welded carburized steel structure using a special process and ISO-DIN 6 ground.

Gearbox for cement industry

Welds of the cement gearbox are performed by a complete preheating and cooling process due to the different carbon contents and different thermal expansion system of each bearing. (PT 100). Two input shafts, high quality roller type bearings sized  for at least 100.000 hours full-load service.

Tectyl rust inhibitor is sprayed on all machined surfaces prior to package for sea shipment to the Eastern end customer in Tunisia.

Gearbox for cement industry

Full speed – reduced load test checks that the temperatures, vibrations, noise level, pressure and oil flow rates meet the design values, was successfully tested at Galbiati Group workshop in the presence of the customer and the end-user.

Gear drives for cement industry

Wednesday, May 30, 2012

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Galbiati Group manufactures main and auxiliary gear drives for mills and kilns for cement industry.

Galbiati Group recently implemented a main gear drive for mills and kilns  addressed to the cement industry with a rigid electrowelded housing welded and machined on CNC machine tools of modern design.

The main drive is driven by an electric motor 1200 HP with a total weight of 34.000 Kg.

 Gear drives  for cement industry Gear drives  for cement industry

Gears are made from high-quality forgings in electrowelded and carburized steel structure using a special process and ISO-DIN 6 quality ground finished.

Welds are performed by a complete preheating and cooling process due to the different carbon contents and different thermal expansion system of each bearing. (PT 100). Two input shafts, high quality roller type bearings sized  for at least 100.000 hours full-load service.

Full speed – reduced load test  checks the temperature, vibrations, noise level, pressure and oil flow rates meet the design values, was successfully tested at Galbiati Group workshop in the presence of the customer and the end-user.

Gears for the cement and grinding sector

Friday, September 9, 2011

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Galbiati Group recently implemented, with consequent on site assembly, main drive gears couple addressed to the cement industry.

Technical data:

Gear wheels: outer diameter 1530 mm – band 200 mm – form 10/ Z 141 –Weight 1,300 Kg, in a structure composed by an external 34CrNiMo6 steel ring  awkward to high resistance and reclaimed.

Bi-helical Pinion: form 10/ Z 26 – Weight 760 Kg – band 220 mm, in steel 50CrMo4 awkward to high resistance and reclaimed.

Gears for the cement and grinding sectorGears for the cement and grinding sector

Protection of  processed parts with Tectyl anti-rust, packaging for maritime shipment to eastern customer of the two  gear wheels and the relevant pinion.

4,800 mm Diameter Ring for Cement Mill Drive

Friday, May 21, 2010

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Galbiati Group manufactures girth gears for mills and kilns from 4 m to 8 m diameter, made from a forged rim on welded steel structure.

Gear set with 4800 mm/800 mm diameters for a cement mill drive installed at “Industria Cementi Giovanni Rossi S.p.A.”(PC).

Through hardened NiCrMo alloy steel girth gear (260 HBn hardness) module 32 – 148 teeth – facewidth 420 mm, “pre-heating process” electrowelded on fabricated frame.

Pinion module 32 – 23 teeth – facewidth 450 mm, through hardened alloy steel (330 HBn hardness).

4,800 mm Diameter Ring for Cement Mill Drive

4,800 mm Diameter Ring for Cement Mill Drive

Cement Mill Drives

Thursday, May 20, 2010

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Galbiati Group designs and manufactures main and auxiliary gear drives for mills and kilns with rigid electrowelded housings; carburized and quality DIN 6 profile ground teeth; high quality roller type bearings sized  for at least 100.000 hours full-load service; splash or forced-feed  lubrication. Full speed – reduced load test  checks that the temperatures, vibrations, noise level, pressure and oil flow rates meet the design values.

Cement Mill Drives

Cement Mill Drives

Cement Mill Drives

Girth Gear for Ball Mill

Wednesday, May 19, 2010

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Girth gear for ball mill, 30 m, z 162 and z 20  pinions, made with NiCrMo toothed rim on electrowelded steel frame. Welds are performed by a special controlled preheating and cooling process due to the different carbon contents and different thermal expansion of the materials welded together. Magnetic particle and ultrasonic inspections are performed to confirm the welding  full penetration and to detect any possible surface micro-cracks.

Ring gear drive for ball mill, 30 m, 16 z, and 20 z pinionsRing gear drive for ball mill, 30 m, 16 z, and 20 z pinions

Tectyl rust inhibitor is sprayed on all machined surfaces prior to packaged for sea shipment to the end customer in Tunisia.

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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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