Contrex s.r.l. of Massanzago (PD) at K 2019 in Düsseldorf -- K Trade Fair
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Contrex s.r.l.

Via dell´Artigianato n. 20, 35010 Massanzago (PD)
Telephone +39 0423 920147
Fax +39 0423 920167
This company is co-exhibitor of

Hall map

K 2019 hall map (Hall 11): stand E65

Fairground map

K 2019 fairground map: Hall 11


Silvia Moretto


0039 049 9396711


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Our range of products

Product categories

  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.07  Process automation
  • 03.07.005  Closed loop control equipment for tensile stress of film, sheet
  • 03  Machinery and equipment for the plastics and rubber industries
  • 03.07  Process automation
  • 03.07.007  Material handling
  •  Dosing and metering equipment
  •  Gravimetric dosing and metering equipment

Our products

Product category: Gravimetric dosing and metering equipment

GRAVICO Continuous loss in weight multi-component dosing system

GRAVICO is a continuous loss-in-weight multi-component dosing system equipped with an automatic weight/liner meter adjustment and designed for continuous cycle processing (film, pipes, profiles, mono and co-extruded sheet).
This accurate dosing system is designed for use with up to seven components for wide range of configurations. NAVIGATOR 9000 is the GRAVICO control for the fully automatic management of production parameters, including: cooling ring control, gauge, extruder haul-off and extruder speed.
Key Points:
Multi-component high dosing accuracy
Vibration immunity system
Quick start-up time and changeover

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Product category: Closed loop control equipment for tensile stress of film, sheet

ATLANTIS Adjustable triple-flow ring with thermal sector modulation

ATLANTIS is a high-efficiency, stackable and multi-flow cooling ring, with sectoral thermal modulation for accurate and automatic gauge control.  This cooling ring maintains the precision in thickness control and management from the Discovery line enabling the operator to realize fast and easy adjustment and preparation for production startup and changeover. With the automatic system LIFTER, Atlantis 23T improves the production efficiency by 50% by automatically lifting the top ring to the desired height depending on the production.  This further enhances the mechanical film properties and improves on both quality and productivity.
Key points:
Designed to achieve high throughput
High bubble stability
Uniform film profile (very low 2 sigma)
Carbon fiber construction for thermal isolation

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Target Products
Film/Sheet, Flexible/Elastic

Product category: Closed loop control equipment for tensile stress of film, sheet

Navigator 9000 Automation and control for extrusion

Navigator 9000 is the core of the Contrex control system and manages the primary control parameters of the extrusion line including: gravimetric dosing/blending, film thickness control, film width control, haul-off control, overall line productivity and efficiency.
Given the open architecture of the system it can be easily adapted to suit each customer's individual needs and upgrade requirements. This flexibility allows the NAVIGATOR to be installed on new and existing installations. The easy to use and intuitive interface enables fast blend and material change-overs reducing the start-up and overall change-over time. A diagnostic module shows plant alarm status together with instructions on what actions to take. The Navigator 9000 system is designed for non-stop and automated production environments where centralized management is required to ensure optimal production performance.

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Product category: Gravimetric dosing and metering equipment

Gramixo, continuous loss-in-weight batch blender

This continuous loss-in-weight blender is equipped with a loss-in-weight extruder feeding control which manages the extruder to ensure a constant weight-per-meter ratio. Precision is guaranteed by a double weighing cell which controls the mixer. Dosing accuracy (0,01%), flexibility, perfect mixing, all in the name of visibility. The exclusive double eyelid shutter device, with a reaction time of only 25 milliseconds expresses a high level of precision. This system can dose up to six components creating an accurate blend thanks to the free weighing hopper design.
Gramixo is designed to be installed directly on the processing machine thanks to the exclusive immunity vibration system.
Thanks to the inspection possibility, easy cleaning, quick production changeand modularity DBK GRAMIXO is a machine with no equals. The smart internal coloured LED lighting indicate the machine status. It is equipped with a powerful control thanks to a friendly and graphical user interface and with multiple connectivity. GRAMIXO is MOWIS ready.
Key Points:
“On the go” recipe changeover
Removable inclined mixer
Vibration immunity system

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Product category: Gravimetric dosing and metering equipment

DPK: Solving the problem of overdosing

The DPK dosing unit is a compact, loss-in-weight, precision feeder, suitable for the dosing of small quantities of colour or additives into a flow of base material. The masterbatch or additive to be dosed is contained in a hopper made of a specific transparent shock-resistant acrylic material that makes immediately visible the material contained and the level of load. The hopper is easily removedwith no tools for replenishment or additive change.
The precision of this machine is absolute and is guaranteed even on very low rates. The load cell technology and the control algorithm, make DPK immune to vibrations achieving higher dosage precision without risk of overdosing of the additive or masterbatch. The control of this dosing unit is supplied with a simple and intuitive touch screen interface, where it is possible to store and recall the recipes of the products. DPK has Ethernet, RS485 connections and is arranged for MOWIS.
Key Points:
High precision
“On the go” recipe changeover
Ideal for extrusion, injection and blowing applications

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Product category: Closed loop control equipment for tensile stress of film, sheet

ONE WIRE 6 Adaptive conveying system

Maximum efficiency and self-calibration in conveying systems represent the primary needs of the modern plastic processing industry. Needs finally today satisfied by ONE WIRE 6, the only patented intelligent system available on the market able to define and maximize the amount of granule to be delivered thanks to the exclusive VIBE technology. ONE WIRE 6 is equipped with artificial intelligence and does not need to be programmed as it is adaptive and recognizes and sets the transport parameters in a fully automated way. Moreover, during the system extension, ONE WIRE 6 is self-configurable and automatically recognizes the new client.
Key Points:
Adaptive conveying
Dual-zone supply
Easy system extension

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About us

Company portrait

Contrex is a company of Moretto S.p.A group, the  italian leading  company in the automation for plastics processing industry.
Moretto's systems are original solutions particularly suitable to meet the high precision needs for injection moulding and PET preforms.
In order to satisfy all the plastic processors’ requirements Moretto S.p.A. has extended its product range by acquiring, in 2015, the brand Contrex, a company specialized for more than 35 years in automation for the extrusion of blown film, pipes-profiles and flat slab.
Contrex offers a series of specific products in order to optimize and manage dozens variables, which intervene during the extrusion process of blown films, and to realize a high quality finished product, such as: Continuous loss-in-weight dosing units (from 2 to 12 materials), Cooling rings for film control, Film thickness in-line control systems, Extrusion plants supervising system. 
Perfectly in line with Moretto S.p.A. production, Contrex machinery stand out for their high quality and technology.