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Spray
WIRE / POWDER SPRAY MARKING SYSTEM FOR HOT PRODUCTS

Green Project produces a wide range of marking machines for the hot products out of the C.C. Plants; they are based on its SPRAY technology, consisting of a moveable nozzle which sprays a special metal powder or melted wire to compose the characters, which appear bright and very well defined, as they were handwritten.
Typical applications are for slabs, blooms, billets up to 1200°C, key features are the excellent reliability and readability of the characters also from long distance (i.e. from the crane cabin).
If scale is present on marking surface, it must be removed before marking by a descaling unit; mechanical and water jet solutions are available.
SPRAY is available in two different solutions:

  • PODWER SPRAY
  • WIRE SPRAY




Powder Spray

POWDER SPRAY is based on the spray of a special white metal powder: moving the sprayer by an X-Y controlled table or a robot, the characters are written as by a human hand.
The powder is a special product specifically developed for marking at extreme temperatures; the powder supply unit assures a very reliable operation, having no moving parts. Risks of clogging are negligible and cleaning and maintenance operations are very limited and easy.
POWDER SPRAY is basically composed by :

  • the spray nozzle
  • the powder supply unit (including storage tank, pump, special hose)
  • the pneumatic cabinet


Technical features
Product Temperature:from 500°C to 1200°C
Characters type:letters, numbers, special, defined by a continuous line
Characters size:height from 40 mm to 200 mm
Marking speed:max. 1 character/s
Type of marking :standard (straight forward), reverse, upside down, on one or more lines
static marking (head moving over the product at standstill)

Powder features
Type:aluminium base
Colour:white
Toxicity:not toxic
Storage:indoor, keep dry
Consumption:from 0.5 to 2 g, according to the character size

Our custom automatic reading devices AURS (fixed position) for optical recognition of letters and numbers written by Powder SPRAY marking systems are available (see relevant data sheet)






Wire Spray

WIRE SPRAY is based on the spray of a melted metal wire: moving the sprayer by an X-Y controlled table or a robot, bright white or yellow characters are written as by a human hand. The spray unit consists of an electric arc which melts the wire and an air nozzle which sprays the drops of melted metal onto the product surface.
The main advantages of this technology are its applicability in a wide range of temperature and the excellent resistance of the marking when stored in open air.
WIRE SPRAY is basically composed by :

  • the electric arc spray gun
  • the wire supply unit (storage coils and automatic wire dispenser)
  • the power energizer
  • the pneumatic cabinet


Technical features
Product Temperature:from ambient to 1200°C
Characters type:letters, numbers, special, defined by a continuous line
Characters size:height from 50 mm to 200 mm
Marking speed:min. 2s / character
Type of marking :standard (straight forward), reverse, upside down, on one or more lines
static marking (head moving over the product at standstill)

Wire features
Type:AL wire, AL-core wire or Bronze
Colour:white or yellow
Toxicity:not toxic
Storage:inside, keep dry
Consumption:from 1 to 3 g, according to the character size

Our custom automatic reading devices AURS (fixed position) for optical recognition of letters and numbers written by Wire SPRAY marking systems are available (see relevant data sheet)



Applications

Hot & Cold rolled products
Continuous casting products
Automotive


Technologies

Tema
Paint/ink marking system for hot and cold products



Puma
Punch marking system for hot and cold products



Spray
Wire / powder spray marking system for hot products



Aurs
Automatic reading system for green project marking technologies



Green Project • Via S. Quirico 19 • Genova • Italia
Phone +39 010 6001802 • +39 010 6048932 • Fax +39 010 6500189 • info@greenproject.it • P.IVA 03539080105

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