-
6 step wire-drawing machine
The machine is designed to meet the needs of wire drawing.
Its function is to progressively reduce the section of wires of noble materials (gold , silver, etc.)
by passing them in the threading die. The drawn wire is wound onto a reel equipped with adjustable clutch
which makes it possible to prevent the wire from tearing or from being too slow.
The machining area is fully protected by safety switches and is lubrificated by means of emulsified oil.
Features
Lenght. 1300 mm.
Width: 800 mm.
Height: 1200 mm.
Weight: 350 Kg.
-
Aspirated bench
This bench is designed and developed for working stations that
produce dust (grinding with flexible pipe)
The bench is equipped with transparent hoods with aspirator where hands,
flexible pipe and work pieces can be put into so that the rest of
the body remains outside (the transparent hood is a physical separation
between the working station and the respiratory system of the operator )Features:
N. Of working stations : 2 or 4
Lighting with watertight ceiling: on request -
Belt Grinder Machine
Machine designed for some particular stages of jewellery workmanship suitable for grinding pieces
that require light flat filing.
The machine comes with a basin for the total recovery of metal powders.
Features :
Width: 370 mm.
Length: 430 mm.
Height : 370 mm.
Weight: 40 kg.
-
Bench winder Machine
The basic winder is a machine through which it is possible to wind both full metal wires and tubes in round or
oval shape, through the use of various equipement.
The machine is constructed to be placed on a support bench, it is made up of a mettallic support frame on which
the spindle, the slide and the profiled pins support system are installed .
Features :
Length : 800 mm.
Width: 650 mm.
Height: 600 mm.
Weight: 80 Kg.
Working speed from 0 to 35 rpm
-
Brushing machine for plates and chains
The machine allows the semi-automatic polishing of plates or chains .
The plate is inserted on the relevant guide and passed between overlapping brushes ,
followed by driving rolles which have the ability to change the speed to allow for more or less intense polishing.
The brushing machine can be fitted with an automatic winding machine and a suction with HEPA filter and filtering sleeves.
Features af the machine alone:
Lenght : 150 mm.
Width: 100 mm.
Height: 140 mm.
Weight. 200 Kg.
-
Brushing machine in column
The main feature of the machine is that it offers ample processing space to facilitate polishing objects of
considerable size. It too is make up of a suction system to reduce the loss of metal.
It is equipped with an inverter for speed adjustment.
-
Buffing Machine Small Size
The machine is designed to polish and grind metals.
Its key feature is that it has a vacuum system that allows separate recovery of the two work places.
The air induction system, as it is achieved in the machine , makes it possible to recycle hot air in the work place,
filtering any leaking materials due to possible breaks in the filtering sleeve or other.
Features :
Length : 1900 mm.
Width : 1200 mm.
Height : 2000 mm.
Weight: 350 Kg.
-
Buffing Machine with closures
The machine is designed to polish and grind metals.
Its Key feature is that it has an air suction system that allows
separate recovery of the two work places.
The suction system, as it is achived in the machine makes it possible to
recycle hot air in the work place, filtering any leaking materials due to possible breaks in the
filtering sleeve or other.
The main feature is that it minimized the dispersion of metal.
Features :
Lenght: 1900 mm.
Width : 1200 mm.
Height: 2000 mm.
Weight: 380 Kg.
-
Buffing machine with two motors
The machine is designed to polish and grind metals.
Its Key feature is that it has an air suction system that allows separate recovery of the two work places.
The suction system, as it is achived in the machine, makes it possible to recycle hot air in the work place, filtering any leaking
materials due to possible breaks in the filtering sleeve or other.
The twin- engine enables operators to work independently.
Features
Length : 1900 mm.
Width: 1200 mm.
Height: 2000 mm.
Weight: 400 Kg.
-
Calander Machine
The machine is designed to shape and helically wind sheets of noble metal ( gold, silver, etc.)
Thanks to the combined wheels action.
Features :
Length : 400 mm.
Width : 460 mm.
Height: 1250 mm.
Weight: 70 Kg.
-
Circular Saw Machine
The machine is particularly suitable for gold and silver, micromechanics and small
metals laboratories.
It allows cutting of small drawn plates , full or holow tube, of any shape.
The cutting unit is mounted in a basin to recuperate pieces and shavings.
The board can be tilted for easy blade change . Lastly, the machine is equipped with a plate- guiding ruler with 1 mm
plies and a protractor.
Features:
Lenght: 650 mm.
Widht : 480 mm.
Height: 450 mm.
Weight: 40 kg.
-
Circular vibrator tumbler CRT 60
Finishing tumbler CRT 60 , CROA model. With speed regulator timer and dosing pump
Spheres Capacity: 190 Kg
-
Drawing bench machine with speed control
The machine is build on a very solid metal frame and is employed to draw wire, open tubes even of great dimensions.
The slide has been conceived in such way that with one hand only the wire can be taken and hooked on the traction chain at the same time.
The return of the slide is automatic anche controlled bu motor device.
The “gallery” type chain has a double row of plates.
The traction is obtained with a geared motor.
The machine is also equipped with a device preventing from injuries in case of wire breakage.FEATURES :
- WIDTH 700 mm.
- LUNGHEZZA 6500 mm.
- LENGTH 1290 mm
- TRACTION POWER 1500 Kg.
- POWER SUPPLY 380V (50Hz) + terra
- TOTAL ELECTRIC POWER 2,5 Kw
- VARIABLE POWER (ON REQUEST)
- 1st speed 1,8 Kw
- 2nd speed 2,5 Kw
- DRAWING SPEED
- 1st speed 6,5m/min
- 2nd speed 13m/min
- LEVEL OF NOISE ON THE WORKPLACE 75 dB (A)
-
Drawing machine 11 passages
The machine is designed to meet the needs of wire drawing.
Its function is to progressively reduce the section of wires of noble materials
(gold, silver, etc.) by passing them in the threading die.
The drawn wire is wound onto a reel equipped with adjustable clutch which makes it possible to
prevent the wire from tearing or from being too slow.
The machining area is fully protected by safety switches and is lubrificated by means of emulsified oil .
Features :
Length : 800 mm.
Width: 1900 mm.
Height: 1400 mm.
-
Electronic Skein Decoiler Machine
Electric unwinding machine for chains with electronic speed control .
Features :
Width: 650 mm.
Length : 700 mm.
Height : 1650 mm.
Weight : 20 Kg.
-
Engraving machine
The machine has been designed to impress customized patterns onto the surface (knurling) of metal wires or pipes. The knurling mechanism is composed of a rotating spindle on whose jaws the supports of the knurls are mounted. The wire or tube to be machined slides inside the spindle and is moved by the pulling unit (reel or other element). Depending on the type of pattern to be engraved, two spindle models can be used: with 3 or 4 jaws. In the 4-jaw spindle two to four knurls can be mounted and therefore it is possible to obtain a helix of 2 or 4 ridges, suitable for working with thin wires and tubes. The 3-jaw spindle is suitable for working on pipes and wires with sections wider than 3 mm. Depending on the section of the tube or wire to be machined, guide nozzles with holes of the same diameter must be used to allow correct positioning with respect to the tools. The machine is made of fire-painted box-shaped metal carpentry, inside which all the mechanical parts are installed. The electrical equipment is built into the machine body, while the controls are positioned outside in a position of easy and safe access.
- Length: 650 mm
- Width: 900 mm
- Weight: 150 Kg
- Minimum machinable wire diameter with 2 knurls: 0.8 mm
- Machinable tube diameter with 3-4 knurls: Min. 3 mm – Max 12 mm
Brochure
New machinery
© 2023 C.R.O.A. All Rights Reserved. 