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HOME > Product Information > Rubber extruder > Rubber Extruder

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Rubber Extruder

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Abundant Product Composition met applications and needs you have !!

The rubber extruder, which is one of our signboard products of Mitsuba Manufacturing Co.,Ltd., has been adopted by many users both in Japan and overseas, with nearly 100 extruders annually since its establishment. In addition to its achievements and experience, we design screws and flow paths in-house based on material data that makes full use of measuring instruments such as Brabender viscometers and Capillary rheometers, and we also assemble in-house major parts with our own high-performance processing machines and skilled technicians.

In this sense, we can provide products that satisfy both performance and quality.

Having small extruders like screw size φ20 mm to larger large extruders like φ200 mm, our extruders are used in various fields such as automobile hoses and tyres, building sealing parts, medical tubes, electric cables, and printing rolls and so forth. If advising us the application and specifications, we are glad to propose the most suitable equipment including front and rear equipment.

Features

1. Abundant Equipment Variations

We have even extruders from small size with a screw diameter of φ20 mm used for medical and laboratory use, to large size extruders with a screw diameter of φ200 mm or more for materials straining applications, tyres, vibration-proof products, and other products that require a big throughput extrusion.

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20 mm Rubber Extruder for Labs   200 mm Rubber Extruder for Straining  316 mm Rubber Extruder for Pelletizing

2. Vent type Rubber Extruder

It is available each size of vent type rubber extruder with a vacuum pump which has a function to forcibly remove the air caught in the kneading process or the rubber input part or the moisture contained in the air from the vent hole (degassing hole) provided in the center of the cylinder.

With this function, the air that causes air accumulation and pinholes in the product can be removed as much as possible. This is an essential function for thin-walled products and products that are continuously vulcanized at normal pressure.

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    90 mm Vent type Rubber Extruder for Continuous                               150 mm Vent type Rubber Extruder for Sheet Forming

    Vulcanization of Rubber Hose

3. High Pressure Resistance Design

The pressure resistance of the Mitsuba Rubber Extruder is designed based on the regular use of 35MPa (MAX.50MPa) in consideration of the fact that it can be used for products where extrusion pressure is applied, such as hard rubber materials and small-diameter/thin-walled products.

If higher pressure resistance is required, it is also available in high pressure resistance type compatible with MAX.100MPa. (option)

4.Wear Resistant

Although it is an optional item, it is also possible to change the screw and liner (cylinder inner surface) to a special material as a measure against wear of materials mixed with metal powder such as carbon-rich materials and magnet rubber.

    Note) Wear resistance does not mean that there becomes no wear, but that it has a longer life than standard materials.

5. Abundant Head Variations

There are a wide variety of heads depending on the manufacturing items and requirements such as sheets, electric cable sheathings, and multi-layer heads.

The flow path design is also a made-to-order product designed and manufactured in-house based on the material data of measuring instruments such as Brabender viscometers and Capillary rheometers.

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Four-Layer Head for Weather Strip      Sheet out Head                                         Three-Layer Head for CV Cable

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6.Package type Rubber Extruder

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①A hot water circulation device and a control operation panel
    are integrated with the extruder body at the bottom of the
    extruder cylinder.

    The extruder can be installed at the installation location, and
    it can be operated immediately by connecting the primary
    power supply and the primary water supply/drainage.

          Note) If the motor capacity is 22kW or more, wiring connection between
                    the extruder and the inverter panel is required.

②We will provide our standard specifications that do not reflect
    the customer's requirement such as layout change and parts
    of manufacturer designated, but it is a low-priced version aimed
    at reducing design cost and low cost by that amount.

③ Extruder sizes are available for both vent type and non-vent type with screw diameters from
    φ50 mm to φ120 mm.

7.Rubber extruder with gear pump

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By combining a rubber extruder with a kneading effect and a gear pump that does not require boosting, it is an extrusion system that takes advantage of each other's advantages which suppresses low-temperature, high-discharge and extrusion variation.

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8. Pin type Rubber Extruder

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It is an extruder with a structure in which a pin protrudes from the cylinder toward the center of the screw.

With this function, the material is torn and kneaded repeatedly, so even with a deep groove screw, there is no uneven kneading, leading to high discharge.

This is suitable for tyres that require a high discharge rate and for wide sheet extrusion.

Vent type is also available.

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9.Cylinder Mobile Rubber Extruder

The cylinder and gear box are connected by a shell clamp, and by moving the gear box backward when cleaning the screw, cleaning can be done without turning off the temperature control with the screw attached to the gear box, so at the small amount of various types in manufacturing, it is effective in shortening the setup time at the site.

In addition, even if a calendar roll or vulcanizer is installed in the extrusion direction, screw cleaning can be performed without moving the equipment in the downstream process.

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10.Typical Example of Using a Rubber Extruder

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Roller Headline for Sheet Removal       TPX Sheathed Rubber Hose Tandem Line                Continuous Vulcanization Line for
                                                                                                                                                         Building Material Packing

Click here for details                   Click here for details

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Rubber Electric Cable CCV Line   Rubber Extruder with Screen Changer        Continuous Rubber Vulcanization Line
                                                                                                                                      with Shear Head


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    Spiral Hose Line for Fuel System Hoses                                  Three-Layer Extruder for Weather Strip
                                                                                                          (Vehicle Window Frame Packing)

   Click here for details

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