Rosendahl crosshead series RX

extrusion crossheads

Get the latest crosshead technology for small to big diameters with our Rosendahl RX crosshead series.

Rosendahl RX crossheads for cable and wire production

Rosendahl quality

What makes a crosshead
a good crosshead?

A high-quality cable is the result of many different factors.  Luckily, we master them all. Our strength is the extensive process know-how we have at Rosendahl Nextrom. We are specialists for the entire extrusion process and can therefore optimally adapt the crosshead to your individual requirements. Because only when everything is perfectly coordinated you get a perfect result in the end.

With our Rosendahl Crosshead Series RX we offer a wide range of crossheads for numerous applications:

  • core diameters ranging from 0.03 to 180 mm
  • solid and foamed polymer materials
  • single- or multi-layer extrusion

All the crossheads are offered as single machines and also in complete lines and fit every kind of extrusion line.

Benefit from many decades of comprehensive know-how

our new
co-extrusion
crosshead

The most common coating variant for LV power cables, the “tandem extrusion”, is increasingly being replaced by so-called “co-extrusion”. On the one hand, because this production process is more efficient and thus more cost-effective, and on the other hand because it is becoming inevitable due to the many different extrusion materials.

Our new crosshead RX 40 MB 2.1.I was specially developed for these requirements. It enables the co-extrusion of different material combinations, such as EPDM with PVC. And all with only one crosshead!

Rosendahl tandem extrusion crosshead

our top sellers

Crosshead RX 5

For single-layer and multi-layer applications

Crosshead RX 12

For single-layer and multi-layer applications

RX 25

For single-layer and multi-layer applications

RX 40 MB 2.1.I

For multi-layer applications
materials with different processing temperatures in only one crosshead

RX 110 crosshead

For single-layer applications

high quality standards

crossheads that deliver

Rosendahl crosshead for fiber optic cable extrusion

Perfect product quality

High centricity

RX-type crossheads provide high-precision centricity, thereby preventing over-sized cable wall-thickness and helping saving material and production costs.

Rosendahl crosshead for single and multi-layer applications

Improved crosshead performance

Optimized material distribution by simulation

With the help of simulation software we design an ideal crosshead with perfect material distribution.

Rosendahl crosshead at extruder group

Gentle processing with minimum shear

Simulation makes it possible to control a minimum shear rate and a minimum shear stress. This leads to a gentle processing and to a higher lifetime of your crosshead.

Small volume distributor

This leads to short dwell times and quicker color changes, which has a positive effect on set-up times and material costs.

Rosendahl tandem extrusion crosshead

Use of different materials in one crosshead

From HFFR to PA or PUR; this enables a high degree of flexibility in the use of materials, minimizing investment costs.

Rosendahl crosshead for single-layer applications

Modular structure

Operations are simplified by an easy to use, compact, modular design.

Rosendahl crosshead at extruder group

Extrusion process stability

Perfectly balanced polymer distribution, temperature- and pressure-profiles guarantee a smooth and stable melt-flow across the outlet zone.

Rosendahl extruder and crosshead for LAN cable production

Reduced pressure in the crosshead distributor

This ensures gentle processing of the material, decreases maintenance and spare parts costs.

We offer customized trainings

We teach you the most important things about the extrusion process and about the handling and operating of your equipment.

extrusion crossheads for a wide product range

a fitting crosshead for every application

Rosendahl crosshead for power cable production

Power cables

single & multi-layer insulation / jacketing for various materials

Silicone cables

single & multi-layer insulation / jacketing

Rosendahl crosshead for single and multi-layer applications

Automotive cables

single and multi-layer insulation / jacketing, including quick color change

Rosendahl crosshead for fiber optic cable production

Fiber optic cables

single & multi-layer for tight coating, loose tube & jacketing

Rosendahl extruder and crosshead for LAN cable production

LAN cables / coaxial cables

single or multi-layer application for PE, PP & fluoro materials

crosshead used for steel rope extrusion

Steel rope

single & multi-layer insulation / jacketing for various materials

color change system ROCOMAT integrated within the crosshead

ROCOMAT quick color-change system​

From red/blue to yellow/green in 0.3 seconds​

With the unique ROCOMAT system, we integrate a color-change function directly into the crosshead. That reduces the color-change volume to an absolute minimum and achieves the shortest color-change length in the industry.

Rosendahl crosshead for fiber optic cable extrusion

research and development

Optimization never stops

We closely collaborate with universities, institutes, and leading material suppliers. We keep an extensive database for cable material at Rosendahl and we are always up to date with the latest polymer data for:

Standard materials:

  • PVC
  • PE (LD, MD, HD)
  • PP
  • PA
  • PBT / PC


Special materials:

  • Foamed material blends
  • Cross-linked polyethylene
  • Low-smoke halogen-free material
  • Fluoro materials

improved crosshead performance

Optimized material distribution
by simulation

Melt pressure, temperature profile, flow path and friction are the key factors for designing an ideal crosshead with perfect material distribution. By comparing finite element simulation programs with experimental trials, we verify the close correlation between virtually calculated results and laboratory tests. Both elements are then applied to improve crosshead performance and ensure a homogeneous polymer flow for required output.

the RX crosshead series

The Rosendahl Crosshead Series RX includes crossheads for extruding cores with a diameter ranging from 0.03 mm to 180 mm featuring a perfectly balanced distribution of polymers. They are available for processing various kinds of solid and foamed polymer-materials in single- or multi-layer extrusion. All the crossheads are offered as single machines and also in complete lines and fit every kind of extrusion line.

small crosshead diameters

SpecificationRX 2
Minimum core Ø0.03 mm
Maximum core Ø2 mm
Minimum die Ø0.2 mm
Maximum insulation Ø3 mm
Maximum tube die Ø7 mm
Maximum pressure400 bar
Weight5.5 kg
Layer types1.0 single layer
1.1 single layer + skin or stripe
2.0 double layer
2.1 double layer + skin or stripe
3.0 triple layer
Application 
Field of applicationfiber optic, insulation, micro coaxial
Materialsfluoro materials, PE, PP, XLPE, TPE, PA, PBT, PC, PVC, PEEK, foamed PE/PP, foamed fluoro materials
Special characteristics 
Centering typesfixed, fine tuned
Number of heating zones1
Entry ports

main extruder: Ø 4 mm for single layer, Ø 6 mm for double layer, Ø 4 mm for triple layer

auxiliary extruder 1: Ø 4 mm
auxiliary extruder 2: Ø 4 mm

Options 
Extruder connectionsconnection flanges for any type of extruder
By-passmanual
Distributorsspecial distributor design according to polymer
Accessoriesvacuum adaptor, isolation
head operating and cleaning accessories
Head supporthead stand, head trolley

 

Specification RX 5
Minimum core Ø 0.1 mm
Maximum core Ø 5 mm
Minimum die Ø 0.2 mm
Maximum insulation Ø 7 mm
Maximum tube die Ø 12 mm
Maximum pressure 1,000 bar
Weight 18.5 kg
Layer types 1.0 single layer 1.1 single layer + skin or stripe 1.2 Single layer + skin + stripe or single layer + 2 different stripes 2.0 double layer 2.1 double layer + skin or stripe 2.2 double layer + skin + stripe or double layer + 2 different stripes
Application
Field of application coaxial, fiber optic, insulation, LAN, micro coaxial, solar
Materials PE (LD, MD, HD), PP, XLPE, TPE, PA, PBT, PC, PVC, EPDM, flame retardant polymers, foamed PE/PP, fluoro materials, foamed fluoro materials
Special characteristics
Centering types fixed, fine tuned, ball centered
Heating zones 2/3
Entry ports main extruder: Ø 15 mm auxiliary extruder 1: Ø 9mm auxiliary extruder 2: Ø 10mm
Options
Extruder connections connection flanges for any type of extruder
By-pass manual, pneumatic, hydraulic
Distributors design for special polymers
Accessories vacuum adaptor, tool box
Head support head stand, head trolley
 
Specification RX 12
Minimum core Ø 0.2 mm
Maximum core Ø 12 mm
Minimum die Ø 0.3 mm
Maximum insulation Ø 16 mm
Maximum tube die Ø 20 mm
Maximum pressure 700 bar
Weight single layer: 30 kg multi layer: 110 kg
Layer types 1.0 single layer 1.1 single layer + skin or stripe 1.2 single layer + skin + stripe or single layer + 2 different stripes 2.0 double layer 2.1 double layer + skin or stripe 2.2 double layer + skin + stripe or double layer + 2 different stripes
Application
Field of application coaxial, fiber optic, insulation, jacketing, solar
Materials PE (LD, MD, HD), PP, XLPE, TPE, PA, PBT, PC, PVC, EPDM, flame retardant polymers, foamed PE/PP, fluoro polymers, silicone
Special characteristics
Centering types fixed, manual, variable
Heating zones 2 (optional for oil temperature control )
Entry ports main extruder: Ø 15 mm, 20 mm auxiliary extruder: Ø 8 mm, 12 mm, 15 mm
Options
Extruder connections connection flanges for any type of extruder
By-pass manual, pneumatic, hydraulic
Distributors design for special polymers
Accessories vacuum adaptor, tool box
Head support head stand, head trolley
 
Specification RX 25
Minimum core Ø 0.3 mm
Maximum core Ø 25 mm
Minimum die Ø 1.5 mm
Maximum insulation Ø 30 mm
Maximum tube die Ø 35 mm
Maximum pressure 500 bar
Weight 45 kg
Layer types 1.0 single layer 1.1 single layer + skin or stripe 1.2 single layer + skin + stripe or single layer + 2 different stripes 2.0 double layer 2.1 double layer + skin or stripe 2.2 double layer + skin + stripe double layer + 2 different stripes 3.0 triple layer
Application
Field of application coaxial, insulation, medium voltage, jacketing, solar
Materials PE (LD, MD, HD), PP, XLPE, TPE, PA, PVC, EPDM, flame retardant polymers, foamed PE/PP, fluoro polymer
Special characteristics
Centering types fixed, manual, variable, ball centered
Heating zones 2*/3 (*optional for oil temperature control)
Entry ports main extruder: Ø 25 mm auxiliary extruder: Ø 12 mm
Options
Extruder connections connection flanges for any type of extruder
By-pass manual, pneumatic, hydraulic
Distributors design for special polymers
Accessories vacuum adaptor, tool box
Head support head stand, head trolley

medium crosshead diameters

Specification RX 35
Minimum core Ø 1.5 mm
Maximum core Ø 35 mm
Minimum die Ø 2.5 mm
Maximum insulation Ø 40 mm
Maximum tube die Ø 45 mm
Maximum pressure 500 bar
Weight 50 kg
Layer types 1.0 single layer 1.1 single layer + skin or stripe 1.2 single layer + skin + stripe or single layer + 2 different stripes
Application
Field of application silicone, coaxial, insulation, jacketing
Materials PE (LD, MD, HD), PP, XLPE, TPE, PA, PVC, EPDM, flame retardant polymers, foamed PE/PP, silicone
Special characteristics
Centering types fixed, manual, variable
Heating zones 2/3
Entry ports main extruder: Ø 25 mm auxiliary extruder: Ø 12 mm
Options
Extruder connections connection flanges for any type of extruder
By-pass manual, pneumatic, hydraulic
Distributors design for special polymers
Accessories vacuum adaptor, tool box
Head support head stand, head trolley
Specification RX 40
Minimum core Ø 3 mm
Maximum core Ø 40 mm
Minimum die Ø 3.5 mm
Maximum insulation Ø 45 mm
Maximum tube die Ø 50 mm
Maximum pressure 500 bar
Weight 90 kg
Layer types 1.0 single layer 1.1 single layer + skin or stripe 1.2 single layer + skin + stripe or single layer + 2 different stripes 2.0 double layer 2.1 double layer + skin or stripe 2.2 double layer + skin + stripe double layer + 2 different stripes
Application
Field of application insulation, jacketing, solar
Materials PE (LD, MD, HD), PP, TPE, PA, PVC, EPDM, flame retardant polymers, fluoro polymers
Special characteristics
Centering types fixed, manual, variable
Heating zones 2/3
Entry ports main extruder: Ø 35 mm auxiliary extruder: Ø 15 mm
Options
Extruder connections connection flanges for any type of extruder
By-pass manual, pneumatic, hydraulic
Distributors design for special polymers
Accessories vacuum adaptor, tool box
Head support head stand, head trolley
SpecificationRX 45
Minimum core Ø3 mm
Maximum core Ø45 mm
Minimum die Ø6 mm
Maximum insulation Ø60 mm
Maximum intermediate die Ø55 mm
Maximum pressure500 bar
Weight600 kg
Layer types3.0 triple layer
Application 
Field of applicationinsulation of MV cables
MaterialsXLPE, semicon
Special characteristics 
Centering typesmanual
Heating zones3
Entry portsmain extruder: Ø 30 mm
auxiliary extruders: Ø 20 mm
Options 
Extruder connectionsconnection flanges for any type of extruder
Distributorsdesign for special polymers
Head supporthead stand, head trolley
Specification RX 60
Minimum core Ø 4 mm
Maximum core Ø 60 mm
Minimum die Ø 4.2 mm
Maximum insulation Ø 70 mm
Maximum tube die Ø 75 mm
Maximum pressure 500 bar
Weight 145 kg
Layer types 1.0 single layer 1.1 single layer + skin or stripe 1.2 single layer + skin + stripe or single layer + 2 different stripes
Application
Field of application insulation, jacketing
Materials PE (LD, MD, HD), PP, TPE, PA, PVC, EPDM, flame retardant polymers
Special characteristics
Centering types fixed, manual, variable
Heating zones 2/3
Entry ports main extruder: Ø 40 mm auxiliary extruder: Ø 15 mm
Options
Extruder connections connection flanges for any type of extruder
By-pass manual, pneumatic, hydraulic
Distributors special distributor design according to polymer
Accessories vacuum adaptor, head operating and cleaning accessories
Head support head stand, head trolley
SpecificationRX 80
Minimum core Ø5.5 mm
Maximum core Ø80 mm
Minimum die Ø5.7 mm
Maximum insulation Ø95 mm
Maximum tube die Ø110 mm
Maximum pressure500 bar
Weight280 kg
Layer types1.0 single layer
1.1 single layer + skin or stripe
1.2 single layer + skin + stripe or
single layer + 2 different stripes
Application 
Field of applicationinsulation, jacketing
MaterialsPE (LD, MD, HD), PP, TPE, PA, PVC, EPDM, flame retardant polymers
Special characteristics 
Centering typesfixed, manual, variable
Heating zones2/3
Entry portsmain extruder: Ø 40 mm
auxiliary extruder: Ø 15 mm
Options 
Extruder connectionsconnection flanges for any type of extruder
By-passmanual, pneumatic, hydraulic
Distributorsspecial distributor design according to polymer
Accessoriesvacuum adaptor, head operating and cleaning accessories
Head supporthead stand, head trolley

big crosshead diameters

Specification RX 110
Minimum core Ø 7.5 mm
Maximum core Ø 110 mm
Minimum die Ø 7.7 mm
Maximum insulation Ø 125 mm
Maximum tube die Ø 130 mm
Maximum pressure 500 bar
Weight 275 kg
Layer types 1.0 single layer 1.1 single layer + skin or stripe 1.2 single layer + skin + stripe or single layer + 2 different stripes
Application
Field of application insulation, jacketing
Materials PE (LD, MD, HD), PP, PA, PVC, EPDM, TPE, flame retardant polymers
Special characteristics
Centering types fixed, manual, variable
Heating zones 2/3
Entry ports main extruder: Ø 45 mm auxiliary extruder: Ø 15 mm
Options
Extruder connections connection flanges for any type of extruder
By-pass manual, pneumatic, hydraulic
Distributors special distributor design according to polymer
Accessories vacuum adaptor, head operating and cleaning accessories
Head support head stand, head trolley
Specification RX 150
Minimum core Ø 15 mm
Maximum core Ø 150 mm
Minimum die Ø 17 mm
Maximum insulation Ø 165 mm
Maximum tube die Ø 180 mm
Maximum pressure 400 bar
Weight 1,130 kg
Layer types 1.0 single layer 1.1 single layer + skin or stripe 1.1.S single layer + skin or stripe with inner skin for adhesion layer available 1.2 single layer + skin + stripe or single layer + 2 different stripes
Application
Field of application insulation, jacketing
Materials PE (LD, MD, HD), PP, PA, PVC, EPDM, flame retardant polymers
Special characteristics
Centering types manual
Heating zones 3/4
Entry ports main extruder: Ø 45 mm auxiliary extruder: Ø 20 mm
Options
Extruder connections connection flanges for any type of extruder
By-pass manual, pneumatic, hydraulic
Distributors special distributor design according to polymer
Accessories vacuum adaptor, head operating and cleaning accessories, service station including storage table
Head support head stand, head trolley
SpecificationRX 180
Minimum core Ø25 mm
Maximum core Ø180 mm
Minimum die Ø25 mm
Maximum insulation Ø195 mm
Maximum tube die Ø240 mm
Maximum pressure250 bar
Weight1,570 kg
Layer types1.0 single layer
1.1 single layer + skin or stripe
1.1.S single layer + skin or stripe
with inner skin for adhesion layer available
1.2 single layer + skin + stripe or
single layer + 2 different stripes
Application 
Field of applicationinsulation, jacketing
MaterialsPE (LD, MD, HD), PP, PA, PVC, EPDM, flame retardant polymers
Special characteristics 
Centering typesmanual
Heating zones2/3
Entry portsmain extruder: Ø 45 mm
auxiliary extruder: Ø 25 mm
Options 
Extruder connectionsconnection flanges for any type of extruder
By-passmanual, pneumatic, hydraulic
Distributorsspecial distributor design according to polymer
Accessoriesvacuum adaptor, head operating and cleaning accessories, service station including storage table
Head supporthead stand, head trolley

Original spare parts for crossheads on stock

We keep a well-sorted spare part stock at our site.

RX accessories

Rosendahl crosshead manufacturing equipment

Tool sets: tips & dies

For original RX crossheads

Rosendahl bypass system for crossheads

Bypass systems

Manual / pneumatic / hydraulic drive, or pressure-controlled

support trolley for crossheads

Support / trolleys

Available for small and big crossheads

contact

Rosendahl crosshead for single and multi-layer applications

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touch
with us

If you need further information on our crosshead product range or if you are interested in a tailor-made solution, don’t hesitate to contact us.

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