Plastic applications

Paste Extruder

High-precision PTFE extrusion with variable automation options

The paste extruder from Keicher Engineering AG enables batch production of PTFE products such as thin-walled hoses, thick pipes (liners), wire insulation, and unsintered PTFE tapes. A mixture of emulsified PTFE powder and organic lubricants is pressed into so-called preforms. These preforms are subsequently extruded through a conical die, dried, and sintered.

<li>Mixer</li> <li>Preform press</li> <li>Paste extruder</li> <li>Drying oven</li> <li>Sintering oven</li> <li>Winder</li>

At a Glance

Advantages of Keicher RAM Extruders or PTFE Extruders

High pipe concentricity due to patented system
Low wall thickness tolerance
High extrusion accuracy through additional speed control
Transducers for pressure, force, and speed for permanent process control
Additional heated extrusion nozzle for better extrusion quality
Hydraulic clamping with high closing force for fast loading
Fast loading with special loading cart, also with multiple preforms, without manual contact
Quick-loadable pressing cylinder
Electrically adjustable mandrel
Operation via touchscreen and recording of extrusion parameters
Automatic adjustment of extruder, preform, and oven according to existing recipes

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Reliable performance, scalable solutions.

WK Extruder Technical Data

<table style="width: 100%; border-collapse: collapse; border: 1px solid var(–base-light); margin: 0 auto;"> <thead> <tr style="background-color: #f0f0f0; font-weight: bold; font-size: 16px; text-align: center;"> <th style="border: 1px solid var(–base-light); padding: 8px; text-align: center;" colspan="5">WK Paste Extruder /LC Version – Production Survey</th> </tr> <tr style="background-color: #f0f0f0; font-weight: bold;"> <th style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">Model</th> <th style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">Range of diameter [mm]</th> <th style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">Compressive force [kN]</th> <th style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">Max. Pre-form diameter Approx. [Inch]</th> <th style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">Max. Pre-form Length [mm]</th> </tr> </thead> <tbody> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 10/250 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1…5</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">100</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1.5</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">250</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 10/350 VH</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1…5</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">100</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1.5</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">350</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 25/1000 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">2…10</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">250</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">2.5</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 30/48" VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">3…20</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">300</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">3"</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">48"</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 40/500 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…40</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">400</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">4</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">500</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 40/1000 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…40</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">400</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">4</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 40/100 VH LC SP</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…40</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">400</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">4</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 40/1800 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…40</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">400</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">4</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1800</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 60/500 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">600</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">500</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 60/1000 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">600</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 80/500 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">800</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">500</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 80/1000 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">800</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 80/1000 VS</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">800</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 80/1000 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">800</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 80/1200 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">900</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1200</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 100/1000 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">8…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">8</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 100/1800 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">8…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">8</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1800</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 125/1000 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">8…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1250</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">10</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 125/1800 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">8…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1250</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">10</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1800</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 150/1000 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">8…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1500</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">10</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 150/1800 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">8…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1500</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">10</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1800</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 30/1800 HH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">2…8</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">300</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">3</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1800</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 40/500 HH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…40</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">400</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">4</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">500</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 40/650 HH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…40</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">400</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">4</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">650</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 40/1000 HH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…40</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">400</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">4</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 40/3000 HH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">2…8</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">400</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">3</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">3000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 60/500 HH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">600</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">500</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 60/1000 HH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6…50</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">600</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">6</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 80/500 HH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">25…350</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">800</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">16/3.5"<br>8/1/8"</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">500</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 100/650 HH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">25…350</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1000</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">16/3.5"<br>8/1/8"</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">650</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px;">WPE 125/1000 VH LC</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">25…350</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">1200</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">15/2.7"<br>10/2.5"</td> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center;">800</td> </tr> <tr> <td style="border: 1px solid var(–base-light); padding: 8px; text-align: center; font-style: italic; background-color: #f9f9f9;" colspan="5">* Diameter depending on the respective Rv-value (reduction ratio) of the desired tube (hose) and of the used fine powder quality</td> </tr> </tbody> </table>

Overview

WPE 10/350 VH
hydraulically driven, to be charged from top to below with mechanical closure force: 100kN (10t) press cylinder lenght: 350 mm pre-form diameter: 40/10 mm

WPE 30/48" VH LC
Two-cylinder version hydraulically driven, to be charged from below with hydraulic closure force: 300kN (30t) press cylinder lenght: 48" pre-form diameter: 1.6"/ 3/4"

WPE 30/48" VH LC
back side with hydraulic unit and electric switchboard

WPE 30/48" VH LC
operating panel with installed heat controllers

WPE 40/1000 VH-LC SP
two paste extruder WPE 40/1000 VH-LC SP upper part with press cylinder, hydraulic closure and master nozzle with pressure sensor. Extrusion from below to the top, to be charged from the top. force: 400kN (40t) press cylinder stroke: 1000 mm pre-form diameter: 4"/1"

WPE 40/1000 VH-LC SP
part below with hydraulic cylinder, mandrel adjustment and control valve

WPE 40/1000 VH-LC SP
hydraulic closure with master nozzle and push button for two-hand operation

WPE 40/1000 VH-LC SP
Electric switchboard for paste extruder WPE 40/1000 VH-LC SP

WPE 40/1800 VH LC

WPE 40/1800 VH LC
mandrel fine adjustment, mechanical

WPE 40/1800 VH LC
mandrel fine adjustment, mechanical

WPE 40/1800 VH LC
Hydraulic closure with press cylinder, heated

WPE 80/1000 VS
spindle driven, to be charged from the top and from below with special mechanical closure force: 800 kN (80t) press cylinder lenght: 1000 mm pre-form diameter: 4"/1"/2.5"/1"

WPE 80/1000 VS
Operating panel for WPE 80/1000 VS

WPE 80/1000 VS
Operating area of paste extruder WPE 80/1000 VS left changing device for die and cylinder

WPE 80/1000 VS
Special lowering device for vertical extruded PTFE paste hose

WPE 100/1000 VH LC
with hydraulic unit and electric switchboard force: 1000 kN (100t) press cylinder lenght: 1000 mm pre-form diameter: 200/90 mm

WPE 100/1000 VH LC
Hydraulic unit with electric mandrel adjustment and connection for exhaust of benzene/air mixture of the inner hose. At the left: Press cylinder with hydraulic cylinder of the pre-form press flanged below

WPE 100/1000 VH LC
Hydraulic closure with button for two-hand operation master nozzle and pressure sensor

WPE 100/1000 VH LC
Single acting pre-form press with hydraulic closing unit as well as operating panel for pre-form diameter 200/90 mm and pre-form lenght 1000 mm