| Sterilising
Tunnel - Dry |
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TECHNICAL
SPECIFICATIONS
Version
Using the Laminar Flow Principle and the Short time
Sterilization Method.
Cleanliness Class
Class 100.
Application
For Vials, ampoules and other cylindrical containers
of glass.
Basic version
Refer to the drawings and leaflets attached for basic
design specifications.
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Material
of construction
Self supporting main structure construction in Stainless
Steel. Drying, cooling and stablizing zones in Stainless
Steel (316 quality) and double walled stainless steel
( of 316 quality ) in heating zone with asbestos free
insulation.
Drives
Electrical drive motor with frequency converter for
conveyor belt controlled by the container contact switch
at the tunnel infeed.
Transport arrangement
Horizontal loop conveyor in Stainless steel. Lateral
guidance by means of vertical slats on both sides of
the Horizontal conveyor belt. Return of the belt outside
of the heating zone. Stainless Steel panel at the end
of the cooling zone to separate the non-sterile area
from the sterile area.
Control Devices
Acentral control panel with programmable logic controller
(PLC) and Panel View 550 of Alien Bradley with one 80
column dot matrix printer.The operator friendly console
provides the user to view on the monitor, the process/cycle
in progress, view alarms, and also key in variable parameters
for individual cycles using soft touch key pad.
Electrical Installation
Interlocking devices for temperature control and container
accumulation at infeed / outfeed, overload protection
and all safety gears are provided. To and fro cabling
(2meters) from Tunnel to Control panel is included in
our scope.
Drying Zone
For the Drying Zone the air taken from the room is prefiltered
and aspirated by a blower through HEPA filter. Exhaust
blower is provided underneath conveyor for vapour extraction.
Sterilizing Zone
The sterilizing zone mainly comprises of resistance
heating elements, HEPA filters and temperature regulating
devices. Hot filtered air at approximately 330°C
is recirculated in this zone which sweeps the containers
from top to bottom. The equalpressure drop across the
filters enables in creating an extremely even distribution
of air circulation. This uniformly distributed hot air
sterilzes and depyrogenates the containers.
Cooling and Stabilizing
zone
In this area (arrangement similar to drying zone) the
containers are subjected to laminar flow of HEPA filtered
air taken from the room. The air flow is profiled such
a way that the glass temperature as it exited the sterilizing
zone would be transitioned at a nearlylinear rate. The
exhaust blower below the conveyor belt extracts heated
air and ejects to outside.
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** Note :
Due to continuous product improvement & customer
interaction, designs & specifications may be modified
or upgraded without notice **
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