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| Its futuristic design ist not only pleasing to the eye: The new WELDPLAST S2 lies well in the hand and becomes an indispenable partner. In spit of its small sitze, the compact device produces up to 2.5 kg extrudate per hour. |
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Extrusion welding is carried out in wide variety of areas and is becoming evermore demanding. Leister offers the right tool for all plastics applications in process equipment manufacture and civil engineering. The specialist obtains everything with us from a single source: Devices from 0.3 to 6.0 kilo per hour. Convince yourself.
• 360° rotatable welding shoe
• Easiest possible operation
• Optimal ergonomy and slimline construction |
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Extrusion welding is carried out in wide variety of areas and is becoming evermore demanding. Leister offers the right tool for all plastics applications in process equipment manufacture and civil engineering. The specialist obtains everything with us from a single source: Devices from 0.3 to 6.0 kilo per hour. Convince yourself.
• Ideal for tight spaces
• 360° rotatable welding shoe
• Easiest possible handling |
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New hand-extruders are equipped with brushless self-blowers lasting more than 40,000 hrs work, self-diagnose system, working-hour counter, double temperature controller with 2 C accuracy.
The extruders are ready to work within 3.5 min and they cool down automatically within only 2 min., ensuring much longer life to the heating elements to further reduce the equipment maintenance. |
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Extrusion Welders
Light Weight with High Performance
Wegener´s hand held extrusion welders meet highest demands in performance. They combine extremely compact and simple construction with high welding output. Wegener hand held extrusion welders have a higher capacity at lower weight than comparable units: an important practical advantage. Our in-house air heater production allows us great flexibility in the design of custom machines for individual requirements.
We offer a wide range of extrusion welders, starting with our small and handy EXWELD mini series to the most popular EXWELD alpha2 to our high output EXWELD beta2, we have the ideal machine for your requirement. Unique in the world is our EXWELD hydro (pat.), equipped with a high performance hydraulic drive system, it offers lowest maintenance and highest durability, making it ideal for uninterrupted production. |
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Different processing lengths and screw geometries guarantee a wide area of application. Venting zones, interchangeable grooved bushes, stroke adjustment systems and many more features allow for an extremely versatile application in setting up extrusion lines.
As standard, all extruders are equipped with microprocessor control contained in a swing-out unit above the extruder. |
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Gearboxes, main and auxiliary drives for:
- Rubber and plastic mixers and extruders
- Sugar millsi
- Paper mills
- Mills
- Cement factories and mines |
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The new series of helical gear units has been studied and designed specifically for use on systems for the SINGLE-SCREW EXTRUSION of various materials, such plastic, rubber, etc.
Our range includes two-stage reduction units, PBE series, with a nominal reduction ratio ranging between 6.3 and 28, and three-stage reduction units, PCE series, with a nominal ratio ranging between 8 and 125.
By being able to have the same reduction ratios 8÷28 on both series either solution can be chosen for the same application, depending on the dimensions and version required.
For all sizes, the housings of the gear units are built in G25 grey cast iron, suitably dimensioned for heavy duty work. They are suitable for mounting both horizontally and vertically.
The output flange, housing the thrust bearing and used for mounting the extrusion screw, is integrated in the housing cast.
The thrust bearing fitted on the low-speed shaft is the 294__E type and dimensioned for heavy duty working conditions.
In the standard version, screw keying is done with a feather key but it may also be done with a grooved profile, according to the most common standards in force.
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This series of gear reducers with attached or integrated thrust bearing can be supplied in a helical or bevel helical gear arrangement. Quiet operation and strong design are key features. Horizontal or vertical mounting position, splash lubrication and cooling coil or injection lubrication are possible options. The modular design of the POSIREX is based on the POSIRED 2 range, plus a selection of available thrust-bearing parts.
Technical Data:
Torque (T2 nominal): 3,000 up to 800,000 Nm
Transmission Ratio: 4 up to 160 iN
Axial force: F = 50 up to 2,000 kN
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Double shaft extruder gears have been built by PIV Drives since 1984 for a variety of applications in the plastics and food industries. This product is in operation around the world to the complete satisfaction of our customer base. The gearing is case hardened and ground with a profile correction for optimal load-bearing performance and noise reduction. An extremely quiet gear-train is achieved through a high contact ratio. The axial forces which occur during the extrusion process are safely absorbed through a system of tandem bearings and self-aligning roller thrust bearings.
Technical Data:
Screw centre distance: a = 15 up to 200 mm
Input speed: up to 1,800 rpm
Torque factor: df = 35 Nm/cm3
Power: up to 5,500 kW
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Aligment and measurement of extruders, pipes and bores
The Fixturlaser Extruder is a measurement system entirely dedicated to the alignment of extruder barrels. Providing a quick, easy and precise way of measuring perhaps the most sensitive mechanical machine components in the extruder process.
Optimized package
The Fixturlaser Extruder measures the straightness of the barrel in two axis simultaneously in a certain number of points, defined by the user. It also, and maybe most importantly, measures the barrel centerline position in relation to the rotational center of the screw spindle.
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