In OFP = Oily
Fish Plants the raw fish must be properly cooked to 95
°C. before processing.
The press with separate in solids “press cake” which goes
to the fish meal drier and the liquids “press water” which
goes to decanter and separated to separate fish oil, some
meat sludge solids which goes to the drier and stick water
which contains some dissolved proteins to be recovered
in the drier or in combination with a WHE = Waste heat
evaporator.
Single screw press type TP 41-1 (4 t./hr.) (Vinh Hoan Corporation, Vietnam)
Twin screw press type BS-41 (8 t/hr.) (Kanpa International
Sales, Pakistan)
There are two types of presses:
Twin
screw press
- Twin
Screw Presses has two counter rotating screws that
prevent rotation of the raw material. Invented by
Stord Bartz of Norway 50 years ago, this is the
world known ultimate press for fish meal production
and with a very sturdy design that often has a lifetime
of 30 years or more. The “negative” side of the
press is that it is has a complex (but very reliable)
design that gives a relatively high price.
Twin screw press before refurbishing
Twin screw press after refurbishing
Single
screw presses
- Work
very well when the raw material is fresh and easily
pressable, but these presses some times have the
problem that the material “rotates” with the screw
and does not move forward.
Single screw press type TP-41-1
(Kingfisher,
Thailand)
Single screw press type TP-32-1
(Sardima,
Costa Rica)
ASTW have redesigned
the single screw presses to perform as good as the twin
screw presses.
The advantage of the single screw presses is the simple
design and easy maintenance, and therefore low price. The
ASTW Single screw presses have a very strong and sturdy
design for long lifetime.
Sizes
of presses for fish meal production:
All presses have
a mild steel design and come with a variable speed gear
motor controlled by a frequency inverter (included). (Stainless
screws as option for even longer lifetime) Operating capacity
should be about 50 – 75% of max. capacity.
Single
Screw Presses:
Type
Capacity
raw material in tons input/hour
TP
24-1
1.2
TP
32-1
2.5
TP41-1
4.0
TP
49-1
7.0
Twin
Screw Presses:
Type
Capacity raw material
in tons input/hour
BS-41
8.0
BS-49
18.0
Photo of Plants | Questionnaire
| Service and spare part | Contact Us
Single screw press type TP 41-1 (4 t./hr.)
