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Marking Machines

Models for cables

THERMAL TRANSFER

Color thermal transfer is the most reliable and durable marking method. The slight fusion with the plastic material offers stronger resistance to abrasion and atmospheric agents. A wide choice of printing tape colors provides easy identification of cables.

RELIABILITY

High quality and construction are our best guarantee. Our printer is user-friendly.

Long lifetime

The Gnata printer has a very long lifetime. A durable system with an intelligent design makes it a necessary asset for new production lines. Furthermore, the printing accessories are interchangeable which lets you maintain an up-to-date printing system.

Metric hot marking machine with tape

a) Accumulator device for constant tension
b) Support for motorized jumbo spool
c) Encoder to survey cable running speed
d) Pneumatic opening device for the passage of cable imperfections
e) Pneumatic return of the marking wheel in case of line standstill
f) Mechanical counter for meter marking with manual or automatic resetting
g) Coder with 6 digits for marking of date/lot of production

OPTIONS:

 

Tape Management System

  • Venturi device – Device for the suction of the used ribbon after the marking phase. The used ribbon is collected in a stainless container, complete with filter and boosted aspirator to improve the vacuum.
  • Venturi device with motorized cutter – System, as above, with a revolutionary system, 100% made by Gnata, for motorized cutting of the tape to reduce considerably its volume and increase the capacity of collection of the used tape into the stainless steel container.
  • End-of-tape alarm – Device to inform the operator about the end of the ribbon for hot-marking, with acoustic and luminous signal. The operator will be able to effect a timely change of the ribbon to avoid production of unmarked pipe.

  • Tape breakage alarm – Optic fiber device to detect any breakage in the hot-marking ribbon, warning the operator with an acoustic and luminous signal. The operator will be able to reposition the ribbon on time to avoid production of unmarked pipe.

  • Color reading device – Device with optic fiber to monitor constantly the produced pipe and take action in case the ribbon is stuck, avoiding the complete unwinding of the ribbon by dragging and the stopping of the production.

  • Tandem device

    Device for the installation of two ribbons for hot-marking, one in use and one in stand-by. When the ribbon in use has ended, the operator will change it with the ribbon in stand-by with a simple and timely operation, improving the time required for the change.

  • Accumulator device for tandem ribbon – Device to keep in constant tension the hot-marking ribbon, and reach a faster marking speed. The ribbon is loaded in the accumulator pipe, two optic fibres of max. and min. level control the automatic unwinding of the ribbon. Working autonomy granted by two pancake rolls, 3000m in length, manual change. Max. marking speed of the machine equipped with Accumulator device: 50m/min.

  • Accumulator device for one jumbo coil – Device to keep in constant tension the hot-marking ribbon, and reach higher marking speeds. The ribbon is loaded in the accumulator pipe, two optic fibers of max. and min. level control the automatic unwinding of the ribbon.
    Including inverter for the dynamic management of the unwinding speed and of the suction power, with possibility to optimize the tape consumption, with device for on-the-fly tape change. Working autonomy granted by one Jumbo coil 20.000m long. Max. marking speed of the machine equipped with Accumulator device: 150m/min.

  • Accumulator device for two jumbo coils with manual change – Device to keep in constant tension the hot-marking ribbon, and reach higher marking speeds. The ribbon is loaded in the accumulator pipe, two optic fibers of max. and min. level control the automatic unwinding of the ribbon. Including inverter for the dynamic management of the unwinding speed and of the suction power, with possibility to optimize the tape consumption, with device for on-the-fly tape change. Larger working autonomy granted by two Jumbo coils 20.000 m long. Manual change of the ribbon when the coil in use has ended. Max. marking speed of the machine equipped with Accumulator device: 150m/min.

  • Accumulator device for two jumbo coils with automatic change – Device to keep in constant tension the hot-marking ribbon, and reach higher marking speeds. The ribbon is loaded in the accumulator pipe, two optic fibres of max. and min. level control the automatic unwinding of the ribbon. Including inverter for the dynamic management of the unwinding speed and of the suction power, with possibility to optimize the tape consumption, with device for on-the-fly tape change. Larger working autonomy granted by two Jumbo coils 20.000 m long. Max. marking speed of the machine equipped with Accumulator device: 150m/min. Automatic change of the ribbon when the coil in use has ended, to improve the working times.

  • Counters for measurement in meters or feet:

  • Mechanical counters with 3-4-5 digits, character height from 2.5 to 7mm, for progressive measurement in meters with each revolution of the marking wheel. Including device for manual zero reset.
  • Mechanical counters with 3-4 digits, character height from 2.5 to 7mm, for the printing of the coil number, with manual zero reset.
  • Automatic reset of the mechanical counter – Device for automatic reset with visualization of the production on the control panel. By programming the required length of the coil in the control panel, when the programmed measure is reached the mechanical counter will be reset, with an acoustic and luminous signal for the operator. An impulse will be sent to the cutting unit for the cutting phase. This option is referred to the Mechanical Counter.
  • Coil-counter with 3-4 digits and automatic advancement of the digits – Mechanical device with 3-4 digits, height of the characters 2.5-7mm. It is suitable for the marking of the number of the coil being produced, from =0000= to =9999=. At the reset phase of the mechanical counter, an impulse will be sent to the coil counter for the increase of the digits of one unit. It is installed on the marking wheel of the machine, and it is complete with support. To be considered along with the option Mechanical Counter and the option Automatic Reset of the Mechanical Counter.
  • Pneumatic device for the advancing of the number of meters, when the marking wheel is moved away from the pipe/cable to achieve a correct measurement except for few meters which are not marked. Option complete with additional encoder which remains always in contact with the pipe/cable.
  • Mechanical coder with automatic change of the production hour 01-12 AM 01-12 PM
  • Variable marking pitch:

  • Device for choice of marking pitch – The device for the choice of the marking pitch allows the operator to change the marking pitch of the machine. By programming the required marking pitch in the control panel of the machine, the marking machine will not mark continuously but according to the program (each 1, 2, 3, … m). Max. marking speed of the machine equipped with option choice of the marking pitch: 20m/min.
  • Marking wheel drive for a great accuracy of the marked length:

  • Motorization with three-phase motor and drive with encoder – For an accurate reading, with a digital instrument for correction of 0.1 mm, with special software from Gnata to accelerate the machine and reach the measurement of meters passed without markings.
  • Torque assist brush-less motor, with drive and encoder – For speed detection and for fine adjustment until when the right measurement in meters or feet is obtained.
  • Pneumatic opening of the pipe/cable guide group:

  • Pneumatic device with two arms for opening of the guide wheels to allow the passage of any variations in diameter.
  • Pneumatic device with three carts for opening of the guide wheels to allow the passage of any variations in diameter.
  • Opening of the upper marking group:

  • For the upper group with adjustable counterweight to ensure a constant contact and the suitable pressure on the product to allow the passage of any variations in diameter or imperfections.
  • Temperature regulator without contact:

  • Infrared detector with laser pointer and digital instrument for constant setting and reading of the temperature of the marking wheel.
  • Infrared detector with laser pointer and digital instrument for constant setting and reading of the temperature of the marking wheel. Dynamic version for variations when the extrusion speed changes.
  • Special applications:

  • Siemens PLC to control the complex machine functions, with dialogue with your line and adjustment to the requirements of the Industry 4.0.
  • Motorisation of the upper and lower axis by panel to facilitate any adjustments when the diameter changes.
  • Pipe guide wheels with concave section for a more accurate guiding and hardening of the wall to be marked.
  • Onboard encoder for a correct length reading.
  • Mechanical coders:

  • Coders or date-groups with 3 to 12 digits, with manual advance for the printing of the lot number or of the date, 2.5 to 7mm in height.
  • Coders for printing of the pipe diameter and thickness, with 6 digits (Ø32×3.0), with 8 digits (Ø125×12.5), with manual advance, 3.5 to 7 mm in height with 9 digits (Ø1200×40,5), 5 to 7mm in height
  • Conversion of an existing marking machine to print feet-meters:

  • Kit to convert an existing machine to print feet or meters with all automatism for automatic zero reset of meters-feet, coil number.
  • Special models for marking of writings longer than 1000 mm :

  • Special model with double marking station for marking up to 2000 mm.
Model Ø of the pipe (mm) Extrusion speed (m/min)
MAC 140 Ø 6÷90/140 mm 18-30-150 m/min
MAC 250 Ø 6÷90/250 mm 18-30-150 m/min
MAC 400 Ø 32÷400 mm 18-30-150 m/min

Motorized printer with special options for high speed cable production line.

Back view of the printer for high speed cable production with: motorized jumbo supports, three phase motorization controlled by inverter.

This picture shows a metric marking wheel assembly with counter with automatic zero reset, together with a counter for coil numbering with automatic feed. In addition clearly shown, is the device for the automatic changeover between two coils of ribbon. This operation takes place automatically whenever an end of tape or a tape breakage is detected and enables long periods of uninterrupted working.
This picture shows a metric marking wheel assembly with counter with automatic zero reset, together with a counter for coil numbering with automatic feed. In addition clearly shown, is the device for the automatic changeover between two coils of ribbon. This operation takes place automatically whenever an end of tape or a tape breakage is detected and enables long periods of uninterrupted working.
2 feet marking wheel with 6 digit counter with automatic zero setting.
2 feet marking wheel with 6 digit counter with automatic zero setting.
Marking machine, motorised version, with 2 feet marking wheel.
Marking machine, motorised version, with 2 feet marking wheel.
Unit for embossed hot-marking at the exit of the extrusion head, marking made at 0°. With total safety guard according to CE standards, with pneumatic return of the marking wheel. Machine with safety guard closed.
Unit for embossed hot-marking at the exit of the extrusion head, marking made at 0°. With total safety guard according to CE standards, with pneumatic return of the marking wheel. Machine with safety guard closed.
Unit for embossed hot-marking at the exit of the extrusion head, marking made at 0°. Machine with safety guard open.
Unit for embossed hot-marking at the exit of the extrusion head, marking made at 0°. Machine with safety guard open.
Unit for embossed hot-marking at the exit of the extrusion head, marking made at 0° and at the same time at 90° and 270°.
Unit for embossed hot-marking at the exit of the extrusion head, marking made at 0° and at the same time at 90° and 270°.
Metric mechanical counter for embossed hot-marking on cables, at the exit of the extrusion head.
Metric mechanical counter for embossed hot-marking on cables, at the exit of the extrusion head.

Printer available with feet and meter marking wheel, with options for high-speed cables.

This picture shows a printer with 2 ft. marking wheel. Combination version: a kit of components is supplied with the machine to enable the customer to convert to metric operation. The change from 2 ft. to metric pitch takes approximately 5 minutes.

Configure your machine
Step 1
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Marking style: ...... Close
I want to mark on: ...... Close
Material ...... Close
Printing speed (max.) (m/min)
Min.-max. pipe/cable diameter: min. / max.

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