The document discusses filtration processes and provides information about PT. LEITER INDONESIA, a company that offers process filtration solutions using fabrics from Sefar. It summarizes Sefar's offerings for various types of filtration equipment, including vacuum belt filters, rotary drum filters, rotary disc filters, belt press filters, filter presses, horizontal disc filters, leaf filters, tube presses, and multi-element candle filters. The benefits of Sefar's fabrics for these applications include optimized chemical resistance, increased filtration efficiency, low maintenance costs, and long service life.

1. Process Filtration
PT. LEITER INDONESIA
Rukan Taman Meruya Blok M / 73A
4th Floor - Taman Meruya Ilir
Jakarta 11620 INDONESIA
Contact :
Sarjono - 081 252 62 6022
Phone
Fax
Email : sardjono@leiter-indonesia.com
Web.
: 021 3409 0048
: 021 5861 790
: www.sefar.com

2. Contents Introduction
2
Filtration processes cover a wide range of applications from, for example,
pigments, colors, polymers, starch, fine chemicals, environment-related
and mining industries. The enormous diversity of the products to be hand-led
demands a correspondingly diverse range of equipment using a wide
variety of filter fabrics and fabricated filters.
We offer
Sefar provides standardized filter solutions for the main types of
equipment used in the process industries, based on fabrics that have
been developed by Sefar to meet the needs of the customers.
It has always been the aim of Sefar to minimize our customers’ overall
process costs by reducing waste and energy requirements by maximizing
the service life of our filter products.
Customized solutions that meet the industry’s most stringent require-ments
(e.g. high temperatures, chemical resistance and long life-time)
Integrated production: all crucial steps from yarn production and wea-ving
to fabrication of ready-to-use filters
High quality standard and product traceability
Complete fabric range for all filtration tasks
More than 50 years experience in the process industry
Your benefits
State-of-the-art fabricated filters
Reduced production costs (e.g. higher yield, reduced machine down-time)
Improved process safety and reliability
Improved end-product quality
Sefar offers world-wide local fabrications and services
Introduction 2
Fabrics
Fabrication 3
Vacuum Belt Filter 4
Rotary Drum Filter 5
Rotary Disc Filter 6
Belt Press Filter 7
Filter Press 8
Horizontal Disc Filter 9
Leaf Filter 10
Tube Press and Multi Element
Candle Filter 11
Bag Filter 12
Cyclone Screening 13
Centrifuge 14
Fluid Bed Dryers 15

3. 3
Fabrics / Fabrication
Fabrics
Sefar offers a unique selection of high quality filter fabrics:
SEFAR TETEX® MONO
- easy cleaning
- resistance to clogging
SEFAR TETEX® DLW
- improved stability and performances on vacuum belt filters
SEFAR TETEX® DRY
- designed for dry food applications
SEFAR TETEX® MULTI and SEFAR TETEX® MC
- fine filtration
- special applications
SEFAR PETEX®, SEFAR NITEX®, SEFAR® PROPYLTEX, SEFAR® FLUORTEX
and SEFAR CARBOTEX®
- screening
- sifting operations
FDA or EU conformity is available on request.
Contact your Sefar representative for more informations.
Fabrication
Sefar has established special state-of-the-art fabrication techniques in
order to meet the most stringent quality expectations and performances
as well as continuous process and product improvement.
The following specialized processes illustrate our constant effort
to meet these requirements:
Various types of continuous edge coatings and closures for belts
Special coating for filter press cloth
High frequency, ultrasonic and hot-wedge welding of fabrics

4. Vacuum Belt Filter
Vacuum belt filter in the chemical industry
4
Belt closure
Metal clipper closure with overlap
Cross-section of a double-layer weave
(SEFAR TETEX® DLW)
With the introduction of double-layer
weave (DLW) technology for vacuum
belt filters Sefar has established and set
the standard for this type of equipment.
A broad range of double-layer weaves
is based on the concept of a fine filter
fabric combined with an integrated
robust support and drainage fabric.
Main features
Available in PP, PET and PEEK
Choice of pore sizes from 7 to 160 μm
Edge coating
Closures in stainless steel or Hasteloy
Your benefits
Optimal chemical and thermal
resistance
High filtration efficiency
No particle loss
Reinforced and sealed edges for
trouble-free operation
Long service life and low operating
costs for all types of direct drive
and rubber belt filters

5. 5
Vacuum drum filter for Kaolin dewatering
Rotary Drum Filter
Rotary drum filters are often the work-horse
of filtration in the process in-dustry.
The design of the different
types of drum filters reflects the enor-mous
variety of jobs for this filter type
and the industry.
Sefar offers an unique range of mono-and
multifilament belts.
Calendered fabrics (Perfect cake release) SEFAR TETEX® MONO with fine pores Belt closure with special rubber profile
Main features
Available in PP, PET, PA, PEEK, PVDF
and E-CTFE
Pore size from 2 to 160 μm
Choice of edge treatment and
edge profiles as required by the
equipment
Closure as required for the type of
rotary drum
Your benefits
Optimal chemical and thermal
resistance
No particle loss
Good filter performance
Easy installation
Low maintenance costs

6. Rotary Disc Filter
Rotary disc filter for ore dewatering
SEFAR TETEX® MULTI Filter segments ready for installation
6
Rotary disc filters have a high filtration
surface to foot-print ratio. However,
today’s high-performance rotary disc
filters or hyperbaric rotary disc filters
are heavily dependent on appropri-ate
filter fabrics. In close cooperation
with leading machine producers Sefar
has developed a range of mono- and
multifilament fabrics especially adapted
to the needs of this filter type.
We offer
Elastic multifilament fabrics
Monofilament fabrics
Double-layer weave fabrics for
hyperbaric filters
Main features
Available in PA, PP and PET
Wide choice of pore sizes
Perfect fit and snap-back properties
High abrasion resistance
Your benefits
Material easily adjustable to meet
individual needs
Good cake release
Low maintenance costs

7. 7
Belt Press Filter
Belt press filter belts for organic sludges,
inorganic sludges, dewatering and deli-quoring
(e.g. fruit pressing) are available
as standard products.
Sefar has years of experience and has
pioneered belt press applications in
various fields.
We offer
Woven fabrics
Spiralled fabrics
Main features
Available in PET (Other materials
can be used on request)
Wide range of pore sizes and
permeability
Coated edges
Stainless steel closures or non-marking
closures
FDA-conform materials available
Your benefits
Optimal selection of strengths,
permeability and cake release
Belts adjusted to the different belt
press constructions
Coated edges for a long and
trouble-free service life
Easy installation
Belt press for sludge dewatering
Satin weave Coated edge for maximum mechanical
resistance
Heavy-duty metal clipper closure

8. Filter Press
Filter press with automatic cake release
Filter press cloths fabrication Filter press cloths Overhang cloth for easy installation
8
Sefar filter fabrics have been designed
to cope with the specific conditions in
the filter press. The fabrication tech-niques
and choice of fabrics are tuned
to the requirements of different slud-ges,
products and industries. Cake
release, ease-of-cleaning, life-time,
particle retention and service costs are
just a few requirements to be taken
into account.
Sefar has extensive experience in
virtually every filter press application.
We offer
Overhang cloth
Barrel neck cloth
Special press cloth
Plate and frame press cloth
Main features
Available in PP, PA, PET, PVDF and
E-CTFE
Choice of pore size from 2 to 160 μm
FDA-conform materials available
Welded plastic eyelets
Double fabric having rubber barrel
neck
Your benefits
Optimal chemical and thermal
resistance
Low moisture content due to
fine-tuned fabric choice
Edge coating avoids drippage
Easy installation (Velcro fastener,
Filmatic, ...)

9. 9
Horizontal Disc Filter
Filtration of fine particles, pigments
or recovering of precious catalysts are
a few of the various applications for
horizontal disc filters. The wide range
of Sefar materials offers a unique
opportunity to match exactly individual
customer requirements. Particle reten-tion,
cake release, cleaning properties
and life-time are key issues for the
selection of filter materials.
Horizontal disc filter for pigment production
We offer
Laser cut discs
Seamed discs
Mono- and multifilament fabrics
Main features
Available in PP, PA, PET, PEEK, PVDF,
E-CTFE and PTFE
Choice of pore sizes from 2 to 160 μm
Customized edge design
FDA-conform materials available
Your benefits
Optimal chemical and thermal
resistance
Increased filter performance
Easy installation
Low maintenance costs
SEFAR TETEX® MULTI for maximum particle
retention and good mechanical resistance
SEFAR TETEX® MONO for high permeability Special designed edges
and easy cleaning

10. Leaf Filter
Leaf filters in a chemical plant
10
Sefar produces many cover types in-cluding
mono-, multifilament and spe-cial
sintered material bags which are
well-known for their unique cleaning
and particle retention properties. Leaf
filter pockets are manufactured in close
cooperation with leading filter manu-facturers
in order to ensure the best
possible performance.
Special attention has been paid to:
Particle retention
Cleaning performance
Life-time
Installation
Leaf filter ready for inspection and cleaning Leaf filter bags ready for installation
We offer
Filter bags
Covers
Main features
Available in PP, PA, PET, E-CTFE,
PTFE or as required
Pore sizes from 2 to 150 μm and air
permeability down to 4 l/m2/s
Smooth, calendered surface
Welded and laser cut bags having
minimal tolerances
Your benefits
Chemical and thermal resistance to
your individual needs
High filtration efficiency
No particle loss
Good cake release
Easy installation
SEFAR TETEX® MONO for maximal particle
retention, good strength and flexibility

11. 11
Tube Press and Multi-Element Candle Filter
Tube press and multi-element candle
filters are popular in many industry
segments due to their fully automat-ed
and smooth operation. Sefar has
a range of materials and processes
adapted to this type of equipment.
We are able to provide a wide range of
materials and diameters for tube and
candle filters.
Candle filter for the recovering of catalysts
We offer
Woven tubes
Welded tubes
Stitched tubes
Main features
Available in PP, PA, PET, PEEK and
E-CTFE or as required
Pore sizes from 2 to 150 μm and air
permeability down to 4 l/m2/s
Tubes having smooth (Calendered)
surface
Your benefits
Optimized solutions according to
your requirements
Improved particle retention, cake
release and cleaning properties
SEFAR TETEX® MONO fabric for candle filters SEFAR TETEX® welded tube

12. Bag Filter
Bag filter for the filtration of lacquers
Bag filter with a plastic ring Bag filter with steel ring
12
Strainer bags are available in a huge
variety of designs (Drawstrings, wire
ring, flanged and special designs) and
materials (Micron-rated, high-efficiency
meshes and felts). We show here just a
few examples.
We offer
Bags with drawstrings
Wire rings
Plastic rings
Special designs
Availability and design of these products
depend on the geographical area.
Main features
Available in PA, PET, PP, PVDF or as
required
Sealant steel or plastic ring, adjusted
to various types of equipment
Customized designs, shapes and
materials possible
Bag filter with lifting strips
Your benefits
Standard products available for most
filter types
Customer-specific filters to meet
special requirements possible

13. 13
Cyclone Screening
Cyclone screening equipment are
mainly used for food, pharmaceutical,
chemical, polymer and pigment appli-cations.
Sefar offers rotary screens made of
different polymers such as PET, PA and
conductive PA.
Rotary screening machine
Main features
Wide choice of materials available
Broad range of high-quality meshes
Screens and rotary screens made
according to individual needs
FDA-conform materials available
Consistent tension across the screen
SEFAR NITEX®, SEFAR PETEX®, SEFAR NYTAL®, Turbo-sifter covers
SEFAR CARBOTEX®
Your benefits
Optimized performance for various
screening applications
Suitable for food applications
Long life-time
Abrasion resistance (Heavy-duty
products)

14. Inverting centrifuge
14
Sefar offers innovative solutions for
any type of centrifuge equipment such
as liners, centrifuge bags and invert-ing
centrifuges. Fabrication techniques
and fabrics are chosen to optimize the
overall productivity of the centrifuge
and special attention is given to the
most demanding requirements.
Our precision woven fabrics are de-signed
in a wide variety of weave styles
using the advantages of mono- and/or
multifilament fibers. Sefar’s centrifuge
excel when processing pharmaceuticals
or chemicals having particle sizes.
Centrifuge bag Centrifuge liner
We offer
Centrifuge bags
Liners for peeler centrifuges such as
endless liners
Bags for inverting filter centrifuges
Main features
Fixation adapted to your filter
machine
Connections welded
Filters with integrated backing cloth
Wide range of pore sizes and
material
Pharma labelling possible
SEFAR® PHARMA-Grade fabrics and
fabrication
Your benefits
Minimized product loss and high
yield
Low machine downtime and easy
installation
Superior cake release (No clogging)
Documentation and traceability
Centrifuges
Filter zone
Drainage with DLW (Integrated backing cloth)

15. 15
Fluid bed dryer
Sefar is one of the world’s leading
producers of fabrics and finished bags
for fluid bed dryers. Whether you are
drying, agglomerating or spray coating,
Sefar has the right material for your
demanding application.
Our SEFAR® PHARMA-Grade line
complies with leading pharmaceutical
companies requirements (Production
according GMP regulations and docu-mentation
according FDA regulations).
Flat cap
Conductive ribbon to ensure full conductivity
Stable sandwich construction
(Fabric-felt-fabric) to avoid dead spaces
Cone cap
Stable sandwich construction
(Fabric-felt-fabric) to avoid dead spaces
We offer
Fluid bed dryer bags
Connector sleeves
Bowl screens
Availability and design of these products
depend on the geographical area.
Main features
Welded, particle thight tubes
Unique certification of the electrical
resistance
Excellent resistance to wear and
abrasion
Complete range of Pharma Grade
fabrics and fabrication
Your benefits
Higher yield (Reduced product loss)
Increased safety (Proven conductivity
of assembled bag)
Optimal service life
Low machine downtime
Fluid Bed Dryers
Tube
Welded tubes (Without stitching holes) to
minimize product loss
Conductive fabrics

16. Sefar worldwide
Sefar is the leading manufacturer of precision fabrics from monofilaments for the screen printing and filtration market. Sefar products are used in a wide
variety of industries, reaching from electronics, graphics, medical, automotive, food and pharmaceutical applications to aerospace, mining & refining and
architecture. With its profound understanding of the applications Sefar helps its customers to achieve optimum results in their industrial processes.
Subsidiaries and fabrications centers in 25 countries on 5 continents provide local technical service for the broad range of solutions offered by Sefar.
3105-0254-000-00 | 140226
Subsidiaries Asia
China – Suzhou
Phone +86 512 6283 6383
info.cn@sefar.com
India – District Thane
Phone +91 2522 2940-34 /35 /36
info.in@sefar.com
Indonesia – Jakarta Barat
Phone +62 21 5890 2065 /66 /68
info.id@sefar.com
Japan – Osaka
Phone +81 64 709 1070
info.jp@sefar.com
Korea – Seoul
Phone +82 2 713 9135
info.kr@sefar.com
Malaysia – Johor
Phone +60 786 771 88
info.my@sefar.com
Singapore
Phone +65 6299 9092
info.sg@sefar.com
Thailand – Bangkok
Phone +66 261 887 78
info.th@sefar.com
Vietnam – Ho Chi Minh City
Phone +84 862 925 562/3
info.vn@sefar.com
Subsidiaries Europe
England – Bury
Phone +44 161 765 3530
sales@sefar.co.uk
France – Lyon
Phone +33 472 13 14 15
vente@sefar-fyltis.fr
Germany – Edling
Phone +49 8071 90400 0
info@sefar.de
Italy – Collegno
Phone +39 011 42 001
info@sefar.it
Netherlands – Lochem
Phone +31 573 25 82 50
info@sefar.nl
Poland – Poznan
Phone +48 511 467 467
biuro.pl@sefar.com
Spain – Cardedeu
Phone +34 93 844 47 10
info.maissa@sefar.com
Turkey – Ankara
Phone +90 312 287 34 14
info.tr@sefar.com
Headquarters
Sefar AG
Hinterbissaustrasse 12
9410 Heiden – Switzerland
Phone +41 71 898 57 00
Fax +41 71 898 57 21
filtration@sefar.com
www.sefar.com
Subsidiaries Americas
USA – Buffalo
Phone +1 800 995 0531
sales@sefar.us
Canada – Saguenay
Phone +1 418 690 0888
info.bdh@sefar.com
Brazil – São Bernardo do Campo
Phone +55 11 4390 6300
contato.brasil@sefar.com
Mexico – Cuautitlan Izcalli
Phone +52 55 2291 0652
info.mexico@sefar.com
Subsidiaries Australia & New Zealand
Australia – Huntingwood
Phone +61 2 8822 1700
oceaniasales@sefar.com
New Zealand – Auckland
Phone +64 9 622 3330
salesnz@sefar.com
Our most current general sales conditions shall apply.
Please consult the most current local product data sheet prior to any use.