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HAWA
ENGINEERS LIMITED has its own foundries.
A brief details for the various units are
as under;
A) Steel foundry with capacity of 850 Tons
per annum.
Piece weight: Min. 4 Kg, Max. 350 Kg.
Castings for oil filled equipment under NACE
being our specialty. Manufacture of casting
is done through electric induction melting,
moulding and core making by CO2 binder systems
and organic chemical binder systems. Heat
treatment is done in ceramic fiber lined,
LPG Gas fired and API 6A calibrated furnace.
Facilities include a machine shop for manufacture
of pattern equipment and pattern rigging,
2 coreless induction, medium frequency furnaces,
continuous high speed mixers with compaction
table for moulds cores, impregration chilling
plant, 48" table shot blasting machines,
tanks picking, passivation of stainless steel
and adequate material moulding facilities. |
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Materilas
(ASTM Grades) |
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| Carbon
Steel |
Stainless Steel
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HRCS |
| (Low temp, service)
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(High and Low temp, service) |
ASTM - A 297 |
| ASTM - A 352 LCB, |
ASTM - A 351 CF8, CF8M, |
HE, HF, HH, HK, HT, HU |
| LCC, LC1 ASTM -A |
CF3, CF3M CF8C, CN7M |
NACE MR - 0175 |
| 216 WCB, WCC |
CD4MCU (Urea Grade) Duplex Steel |
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| Alloy Steel |
S.G. Ni-Resist |
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| (High temp, service) ASTM |
ASTM - A 439 |
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| -A 217 WC1, WC5, WC6, |
D2 |
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| WC9, C5, C12, C12A |
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| PRODUCTION
CAPACITY |
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| Steel Foundrey : |
Investment Casting : |
Cupola Furnace : |
| 850 Tons per annum |
240 Tons per annum |
600 Tons per annum |
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| Quality assurance
is ensured by a written assurance program
that include the following testing and inspection
procedure : |
| Chemicals - by
a spectro meter |
Mechanical - by
UTM |
NOT - Radiography and
Ultrasonic |
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| The foundry
is approved by IBR & Indian Navy. |
B) Investment
casting unit; often called lost wax casting
is regarded as precision casting process to
fabricate near net shaped metal parts from
almost any alloy. An induction furnace having
capacity of 125 K.W. is installed Melting
crucibles of 150 Kgs. With stand by crucible
of 100 Kgs is provided. Ductable Air Conditioning
plant has been installed for better dimensional
controls. 30 H.P. Air compressor is provided
to take care of all pneumatic equipment's
working needs. A separate CMC machine shop
is already working for inhouse machining of
investment casting. All other miscellaneous
equipments like cooking tower, water, softening
plant, welding machine, shot blasting machine,
wax pattern manufacturing machine, ceramic
coating machines have started functioning.
Materials - Low alloy steels, Stainless Steel,
Nickel and Cobalt Based Alloys, Aluminum,
Brass, Bronze, Cast iron and Ductile Iron. |
| C) Foundry
for non farours materials such as Gun Metal,
85:5:5:5, NAB - II, AB-I, AB-II, LTB-II, etc. |
| D) Cupola
furnace in 15" & 18" size for
cast iron with capacity of 600 tons per annum. |
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