14 EXT BR Conical Profile En

COMPACT AND RUGGED

Conical twin-screw extruder series for profile extrusion

IN PARTNERSHIP WITH INDUSTRY

KraussMaffei is a premium partner for the plastics and rubber processing industries worldwide

Whatever you aim to achieve in plastics or rubber

processing, KraussMaffei is your partner. We are

the only company with intensive expertise across

the three main engineering fields. And we have a

strong track record in integrating this expertise to

develop new processes and systems.

Ready for any challenge

Our Injection Molding Machinery Division

supplies machinery and systems from 35 to 4,000

tonnes for standard applications and for all

processing variants, together with fully automated

solutions. We have a strong customer base in all the

relevant industries worldwide.

Our Reaction Process Machinery Division supplies

machines and complete systems for processing

polyurethanes and other reactive materials.

Completing our product portfolio, Automotive

Component Systems supplies foam molds, cutters

and routers. Our customer base is wide, with a

focus on the automotive, construction and white

appliances industries.

Our Extrusion Technology Division supplies

machinery and systems for compounding, for pipe,

profile and sheet extrusion, physical foaming, and

the production of technical rubbers and inter-

mediates for tire production. Machinery from the

company’s range – from single extruders to

complete extrusion lines – is used in many

industries, including chemicals, pharmaceuticals,

automotive, construction, furniture and packaging.

People for Plastics

We are the “people for plastics”. We are your

partners from the first exploratory discussion,

through development to commissioning, servicing

and operating your system, and final disposal. At all

times, you are assured of outstanding competence

in planning and engineering, as well as reliable and

fast spare parts, service and support.

Adding value for customers

We put our expertise to work for your success.

With machine ranges engineered for modular-

ity, we can deliver application-specific solutions

based on our wide range of standard modules and

specially engineered solutions. This strategy offers

customers technical and cost advantages.

Close to customers around the world

As an international company, KraussMaffei has

a presence in all the major markets for the plastics

and rubber processing industries and employs

around 3,000 people worldwide. Our sales and

service network keeps us close to all our

customers around the world.

Electrical / ElectronicsLife SciencesConstructionWhite GoodsAutomotive

Electrical / Electronics Packaging

Ideal in the lower output range – conical twin-screw extruders from KraussMaffei Berstorff

The conical twin-screw extruders from KraussMaffei Berstorff are ideal for the lower output range, either as standalone extruders or for coextrusion. In this category, they offer critical design and process engineering benefits.

The short, compact design saves valuable production area – the angled alignment of the screw axes makes space for a rugged distributing gearbox and a substantial back pressure bearing. This machine design ensures optimal functionality even in relentless round-the-clock production. The relatively small screw diameter results in minimal back pressure forces in the metering zone, which contributes to the long service life of the back pressure bearings. The screw, specially designed for PVC processing, ensures extremely gentle plasticizing.

Page 4

TRANSPARENT TECHNOLOGY

Meet the machine: take a tour of a conical twin-screw extruder

Standard metering unitFor processing different materials

Rugged gearbox For low maintenance costs and long service life

Drive conceptFor optimal performance,AC (standard)

Page 5

Short, compact and space-saving design

Rectangular feed throatFor optimal screw filling

Vacuum degassingWith a sturdy waste pipe and quick connection for easy cleaning

Vacuum degassingWith solids separator

Proceesing unit With molybdenum-plated screws and deep-nitrided, air-cooled barrel

Page 6

On double-conical screws the flight depth decreases

from intake to output zone. On conventional single-

conical screws, by contrast, the flight depth remains

constant over the whole length of the screw.

Uniform pre-plasticizing and optimal thermal

homogeneity

Single-conical screws can be double-flighted from

the intake zone to the compression zone. This

ensures uniform material processing. The shal-

lower flight depth in the intake and precom-

pression zones of single-conical screws means

that heat transfer from the barrel heating is

significantly better. In consequence, the powder

achieves optimal thermal homogeneity during the

pre-plasticizing phase.

Benefits of longer screws

The longer screws of the KMD 43 K/P and KMD

63 K/P guarantee a very stable process, optimal

melt homogeneity, a wider processing window for

different formulations, and pressure stability up

to 500 bar, with a constant conveying rate even

against high die resistance.

DESIGN BASICS

Constant flight depth over the whole screw length for optimal material conditioning and temperature homogeneity

Screw length schematics

L1: distance from front edge of feed aperture to venting apertures

L2: distance from venting apertures to melt exit point

Design basics

KMD 40 KK and KMD 60 K

KMD 43 K and KMD 63 K

L2 L1

L2+15% L1+45%

KMD 63 K/P conical twin-screw extruders as piggybacked coextruders above a KMD 114-32/P parallel twin-screw extruder

Coextruder KMD 43 K/P column-mounted on the main KMD 63 K/P extruder

Page 7

Coextruders for profile extrusion

The machines in our conical extruder series are

available as standard standalone extruders and as

coextruders for profile extrusion. Coextrusion is

an important trend in plastics processing. In profile

extrusion, a coextrusion solution can allow the core,

or other non-visible window parts, to be made of

cheaper regrind, with only a thin outer layer made

of colour-fast virgin material. Profile manufacturers

want space-saving coextrusion solutions.

Piggyback configurations save space

Combinations of parallel basic extruders and one

or two piggyback extruders are common. The

basic extruder processes the regrind, while the

coextruder processes the virgin material. Conical

extruders with a screw diameter of up to 63 mm

can be mounted above the main extruder, and

capable of movement in two axes. KraussMaffei

Berstorff offers a wide range of coextruders and

unique space-saving coextrusion concepts such

as post-mounted and piggybacked combinations.

DETAILED PRODUCT INFORMATION

Flexible, space-saving and productive – KraussMaffei Berstorff systems for coextrusion

Conical extruder series (standalone and coextrusion)

Technical data KMD 43 K/P KMD 63 K/P

Output range geometry 1 [kg/h] rigid PVC 30 – 100 55 – 150

Output range geometry 2 [kg/h] rigid PVC – 80 – 220

Motor power output [kW] 19 37,4

Gear torque, max. [Nm] 4000 12 000

Screw speed, max. [min -1] 41 28

Screw length 1160 1700

Screw diameter [mm] 43 – 82 63 – 120

Screw heating/cooling internal internal

Extrusion height [mm] 1000 1000

Dimensions [mm]

Length incl. intake and switching cabinet 2445 3100

Width incl. control desk 975 1330

Height incl. hopper 2000 2210

Page 8 Detailed product information

Mobile operator panel

(option)

KraussMaffei Berstorff standard operator panel:

integrated in the control cabinet

Swivel-mounted operator panel (option)

DETAILED PRODUCT INFORMATION

The C5 control – one of the most advanced control and monitoring systems in the industry

Centralized control of the extrusion line

Meeting tough specifications for product quality and

output demands a stable, reliable production process.

This is where the C5 control system scores. As one of

the most advanced systems in the industry, it offers

dependable technology and intelligent functions for

centralized control and monitoring of extrusion lines.

For the operator, the C5 ensures optimal set-up and

start-up, and a clear, consistent overview of the pro-

duction process. Monitoring and control is facilitated

by efficient visualization of the status of different

extrusion line components on a series of screen pages.

Central synchronization of the whole line, including

multiple extruders, is fast and simple. The operator

panel allows direct intervention in the operation of

all key elements in the extrusion line. The current

operating status of the whole line is always displayed,

together with a customizable selection of seven actual

parameters. Prompts and alarm messages flash up

in your chosen language. The C5 offers extensive

documentation options and easy connection to a host

computer. The standard design features an integrated

operator panel; swivel-mounted or mobile panels are

offered as options. The swivel-mounted panel, for

example, enables the operator to run the whole line

from a position near the die.

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CUSTOMER BENEFITS

Built-in economic and process advantages – it’s over to you to exploit them

Conical twin-screw extruders from KraussMaffei

Berstorff stand for productive, cost-effective profile

extrusion and process benefits. Our experience and

our ability to deliver outstanding solutions are at

your service.

Benefits that pay off

The drastic extension of the preheating zone in the

new KMD 43 K/P and KMD 63 K/P significantly

reduces shear energy input to the melt. The propor-

tionate increase in heat energy makes it possible

to control the entire process much more precisely

by controlling the processing unit temperature. It

also makes it easier to process different materials,

eg, dryblend, granulate or regrind. This greatly in-

creases production flexibility over the whole output

range of the machine. It also makes it easier to change

stabilizing agents if necessary.

The high-performance gear system allows the

specific throughput to be increased; this means

higher output for the same screw speed. The

longer screw and further improved screw geom-

etries ensure optimal melt homogeneity thanks

to gentle, uniform plasticizing. The proven,

self-regulating internal screw temperature control

contributes to uniform plasticizing, excellent melt

homogeneity and to a marked reduction in shear

energy, and ultimately to lower maintenance

effort. Molybdenum hard-facing is standard

on KMD 43 K/P and KMD 63 K/P screws. It’s

because the new conical machine generation are

universal workhorses, engineered for reliable

performance and productivity that they promise

excellent returns on your investment.

Your benefits at a glance:

· Optimal melt homogeneity thanks to long processing unit

· Wide processing window for different formulations

· Increase of specific throughput and output rates through extension of the preheating length; this results in higher output for the same screw speed

· Outstandingly consistent product quality over a defined performance range

· Low maintenance thanks to internally temperature-controlled screws and air-cooled barrels

· Cost savings from extended service life for the processing unit and high output rates

· Excellent price/performance ratio

Customer benefits

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Rely on us for a fast and competent response to

all your service needs anywhere in the world.

Whatever you need – from troubleshooting and

training to spares or repairs – we’re on the job.

We’re dedicated to supplying service quality on a

par with the outstanding quality of our machines

and systems. We offer far more than spare parts

and hotlines. We’ll work with you to choose the

best and most cost-effective solution for your

operation. We’ll help you test new applications

and we’ll plan customized service packages.

All-round service

Our service offering is broad. We’ll configure your

system, install and commission it, train your staff,

plan measures to minimize your downtime risk and

maximize productivity, and carry out maintenance,

repairs and upgrades. You’ll find us fast, reliable

and competent. Our hotline is manned by highly-

trained and experienced service technicians.

If necessary, we’ll get a technician to you quickly.

Remote diagnosis, interfacing directly with your

machine’s control system, can be a practical

alternative. Spares for all important wear parts are

available at short notice. We’re continuously

expanding our service network to speed up spare

parts shipment. Talk to us about the right service

solution for your business.

Customer trials and prototyping in our test lab

The Extrusion Division operates a test lab fitted

with the latest machinery and equipment. We can

run trials, produce prototype parts and fine-tune

processes on your behalf. We can work with you

to test and evaluate processes, machines and

equipment in order to identify the best approach

for a particular project. Our highly-qualified

application engineers are there to help you.

Training with high hands-on content

Courses are held in our lab and training centre,

or, optionally, on your premises. We offer

clearly-structured basic and advanced training in

operation, process control and maintenance for

KraussMaffei extrusion systems. On request, we’ll

plan and hold special courses on topics of your

choice. All participants spend a high proportion

of their training working hands-on with original

KraussMaffei machines. A well-structured

training program produces skilled operators

and technicians, which will positively impact

your up-time and productivity.

SERVICE WORLDWIDE

Service, support and spare parts – when you need them, where you need them

Page 11

Worldwide hotlineWorldwide hotline numbersnumbers

Extrusion Technology ServiceExtrusion Technology Service

KraussMaffei Technologies GmbHKraussMaffei Technologies GmbH

Krauss-Maffei-Str. 2Krauss-Maffei-Str. 2

80997 Munich80997 Munich

GermanyGermany

Contacting us by postContacting us by postIf you need to contact any of our

international service or spare parts teams

by post, use this address:

KraussMaffei Technologies

India Pvt. Ltd.

Pune, India

Phone: +91 20 41404610

Fax: +91 20 414046 99

Email: [email protected]

Krauss-Maffei Extrusion

Technology (Zhejiang) Co., Ltd.

Jiaxing City, China

Phone: +86 573 86973888

Fax: +86 573 86967111


KraussMaffei Technologies GmbH

Munich, Germany

Customer Service

Phone: +49 89 8899-2273 (electrical systems)

Phone: +49 89 8899-4380 (mechanical systems)


Application Engineering

Phone: +49 89 8899-4094

Fax: +49 89 8899-2161


Krauss-Maffei Italiana S.r.l.

Abbiategrasso, Italy

Phone: +39 02 94963181

Fax: +39 02 94699482


Berstorff Krauss-Maffei OOO

Moscow, Russia

Phone: +7 495 9377554

Fax: +7 495 9701731

Email: [email protected] Krauss Maffei Corporation

Florence, USA

Phone: +1 859 2834307

Fax: +1 859 2830290


Krauss Maffei de México

S. de R.L. de C.V.

Mexico City, México

Phone: +52 55 53082383

Fax: +52 55 53081727


Krauss Maffei do Brasil Ltda

São Paulo, Brazil

Phone: +55 11 46129171

Fax: +55 11 46128366


Krauss-Maffei (U.K.) Ltd.

Warrington, UK

Phone: +44 1925 644100

Fax: +44 1925 234284


KraussMaffei Technologies GmbH

Krauss-Maffei-Strasse 2 ··· 80997 MunichPhone +49 89 8899-2546 ··· Fax +49 89 8899 - 4043www.kraussmaffei.com

KraussMaffei is a premium partner for the plastics and rubber processing

industries worldwide. KraussMaffei machines and systems are used wherever

plastics and rubber are converted into products. As a knowledge-driven

technology company, we build on many decades of experience and a strong

commitment to research and development.

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Conical twin-screw extruders from KraussMaffei Berstorff are the ideal machines for lower output applications. The short, compact design saves space. The rugged machine design ensures optimal functionality even in relentless, round-the-clock operation. The long processing unit guarantees optimal melt homogeneity. The screw concept is designed for outstanding, constant product quality over a defined performance range. The excellent price/performance ratio and the long service life of the processing unit help to keep your products cost-competitive.

Documents

14 EXT BR Conical Profile En