PRODUCT REFERENCES

1. Introduction
WANTANA METAL WORKS is a manufacturer of grey and ductile cast iron. Our
products are mostly provided to automotive industry – Bracket compressor,
Bracket generator, Pulley idle, Pipe EGR Cooler, Drum Gear, etc.

The company is affiliated with WATANA GROUP, which has been in foundry
business for over 40 years. WANTANA GROUP comprises of 4 companies,
Wantana Machtech, Siam Castech, Wantana Foundry and Wanata Metal Works,
providing various type of casting ranging from cast steel, stainless steel, and grey
and ductile cast iron.

Trust through experience, we determined to create the best value through

customers in various types of industry ranging from general casting - agricultural
machinery, construction parts, to high quality products - automotive parts.

Founded Type of process Material Products

WANTANA METAL WORKS 2009 DISAMATIC LINE FC/FCD Automotive part - Bracket, Pipe EGR, Pulley Idle

WANTANA FOUNDRY 2002 TOKYU LINE FC/FCD Butterfly valve, Elevator, Agricultural machinery.

SIAM CASTTECH 1994 CO2 Cast steel Agricultural machinery

WANTANA MACHTECH 1973 Machining - Agricultural machinery

“Trust is a key to sustain our business for over 40 years, it is necessary to make not only
our customers but also our suppliers being confident in doing business with us ”
Khit Ngaobenjakul, President of WANTANA GROUP.

WANTANA METAL WORKS was established in 2009 based on strong confidence through decades of experience. Our
mission is simple and clear, to create superior value to customers. We just need to provide better quality, more
competitive price and be more on time delivery than any others. Consequently, it is necessary to bring high
efficiency machines and equipment into production process. For instance, in 2010 – 1 st production line, high end
molding line as DISAMATIC system was approached to ensure that mold making process is more reliable –
producing numbers of green sand molds with high quality at high speed. As a result, 80% of its capacity has been
being served to automotive market for the last 2 years.

The demand in automotive parts has continuously increased since the 1 st line has run. WANTANA METAL WORKS
took this opportunity to expand the business by installing the second production line, which has 3 times capacity of
the first one. Certainly, DISAMATIC molding system was selected.

Established 2009
Registered capital 1,000,000 US
Location 111 Moo 11 T. Phohak A. Bangphae Ratchaburi, Thailand 70160
Building factory area 2 x 2,700 m2
Employees 80 – 100
Production process Line 1: DISAMATIC 2110 MK3 600 tons/month
Line 2: DISAMATIC 2013 MK4 PLC UPGRADED 1500 tons/month

2. PRODUCTION process
Two production lines are the key process to drive the company. Generally, casting process consists of 3 main
processes, which are melting & pouring, molding& core, and finishing process, - including de-gating, shot blasting,
grinding and packing process.

Similar to our production line, as per below figure, the first line is equipped with 1 Ton x 2 induction furnaces and
DISAMATIC 2110 MK3 including sand plant. Two tons/hr. liquid metal can be produced from this line. The second
production line, 3 times capacity compared to the first one, is equipped with 3 Ton x 2 induction furnaces (melt &
hold system) and DISAMATIC 2013 MK4 PLC UPGRADED including sand plant. 4.5 ton/hr. liquid metal can be
produced by this line. The details and capacity of each process are shown in table 1.1.

LINE 1: LINE2:

Melting 1 x Fuji 1,000 kg 900 kw 500 Hz 1 x 5M 3,000 kg 1600 kw 500 Hz - MELT

1 x 5M 1,000 kg 900 kw 500 Hz 1 x 5M 3,000 kg 350 kw 500 Hz - HOLD

Molding DISAMATIC 2110 MK3 DISAMATIC 2013 MK4 PLC UPGRADED

Mold size 400 x 500 mm. 480 x 600 mm.
Speed 300 mold/hr. 320 mold/hr.
 Automatic Core Setting (CSE) Automatic Core Setting (CSE)

Core 2 x Automatic core shooting machine 1 x Automatic core shooting machine

Model ECO VR-400 ECO VR-400
Mold size 400 x 600 mm. 400 x 600 mm.

SAND PLANT Capacity 20 ton/hr. 45 ton/hr.

Mixer HIDEA 160-45 500kg HIDEA 190-75 1,000kg
Sand controller - SM
Sand bin 2 x 20 ton 2 x 45 ton
Sand cooler HIDEA SFC1350-4000 HIDEA SFC1350 - 4000
Polygon screen Mesh 6 x 20 mm, 4 kw, 30 T/H Mesh 6 x 20 mm, 5.5 kw, 45 T/H
Shake out 1000 x 4000 mm, 2 x 4.0 kw 1000 x 4000 mm, 2 x 4.0 kw
Dust collector reversed air 30,000 m3/hr. reversed air 45,000 m3/hr.

Finishing Degatting 2 x Holmatro 9 ton 2 x Holmatro 9 ton

Shotblasting 1 x Apron type 250 kg. 2 x Growell Apron type 1,000 kg.
1 x Apron type 350 kg.
Grinding 4 x 3.75 kw grinding M/C 4 x 3.75 kw grinding M/C

Table 1.1

3. DESIGN process
Time to the market has become crucial in today business. We
put effort at the very beginning of product life cycle. Pattern, Die
and gating system are designed in 3D model (CAD) by advanced
tool as NX9.0. In addition, casting simulation is approached to
help us to understand liquid metal behavior from flowing into
the mold until transforming to be solid.

These powerful tools enhance opportunities to improve casting

yield and predict defects such as pinhole, shrinkage, etc. Quality
and productivity issues can be solved in less time and with lower
costs by evaluating alternative concepts with simulation before
pattern or die are released to production. This results to
dramatically reduce the numbers of trial and error. Product can be
launched in mass production faster.

In addition, these advanced tools enhance simultaneously working

among customers, the company and also patternmaker at the
beginning of the design process. For instance, as soon as 3D model
are created, customers can use this model to design jig and figure.
At the same time, pattern maker use it to make pattern.

Rapid prototype technology is also approached in our design process. Sometimes,

customers want prototypes, 2 to 10 pieces, to assemble and test with their
system. However, producing less number of casting can make a problem with
foundries.

By 3D sand printing technology, the problem of producing less number of casting

and the need for pattern making can be eliminated. The prototype can be made in
less number, shorter time and lower cost without pattern required.
4. LABORATARY
The consistency of product quality is crucial for automotive industry. Our laboratory is well equipped with tools and
equipment that are required for automotive inspection standard requirement. - Spectrometer, CE Meter,
microscope, thermometer, universal tensile testing machine, Brinell hardness tester and echo meter (to classify
casting between FC and FCD by sound echo technology).

Besides those basic equipment, in 2013, we approached new advanced tool, microstructure analysis software.
Microstructure analysis, -type of graphite, percentage of ferrite and perlite, nodularity, nodule count, etc., becomes
easier, faster and more accurate.

Spectrometer Brinell Hardness tester

Microscope Universal Tensile testing machine

Echo meter Microstructure analysis software

5. MANAGEMENT SYSTEM
WANTANA METAL WORKS has been promoted by BOI (Board of Investment) in
2011 and 2014. The company is granted several benefits under BOI privilege, for
instance, income cooperate tax exemption for maximum period of 8 years.

In 2013, our quality management system (QMS), ISO9001:2008, is certified by

SGS.
In addition, in 2014, we continue to improve our process by implementing TPS (Toyota Production System)
supported by Automotive Institute (Thailand). Four major steps, worksite
control, continuous flow, standardization and kanban, are utilized entire
organization. After 8 months running TPS, the company performance,
consequently, has been improved dramatically. – reducing in WIP and lead time,
and increasing in sales and profit.

TPS, TOYOTA PRODUCTION SYSTEM

“After running TPS for 8 months, it could be said that TPS is a key for archiving and
sustaining growth of the company.”
Korakij Ngaobenjakul, Managing director
Wantana Metal Works

6. Contact
Company WANTANA METAL WORKS co., ltd

Address 111 Moo 11 T. Phohak A. Bangphae

Ratchaburi, 70160 Thailand

Person Korakij Ngaobenjakul

Position Managing Director
Mobile
+66 81623308