Stirrer; Reactor Head - IKA LR-2.ST Mode D'emploi

To raise the whole assembly by hand, first undo the two
knurled screws on the left and right of the stand legs.
The pressure springs built into the telescopic stand mean
that the whole reactor can be easily raised and lowered.
The laboratory stirrer mount with integrated stirrer shaft
bearing is fitted to the stand adapter (connected to the
stand legs) with two tie rods. The ball-bearing, vacu-
um-tight stirrer shaft is connected to the stirrer shaft drive
by a coupling flange. The stirrer shaft features covered
Laboratory stirrer mount
with stirrer shaft bearing

Stirrer

Refer to the operating instruc-
NOTICE
tions for the laboratory stirrer.
See "Technical data" section
The laboratory stirrer is a fixed component of the laboratory
reactor system.

Reactor head

Hazardous pressure build-up!
DANGER
Ensure that the reactor vessel
is properly vented and can
release sufficient air!
The reactor cover is screwed onto the stirrer shaft bearing
using a thread. The reactor cover can be easily remo-
ved for cleaning or sterilisation puposes (see Cleaning /
Sterilisation).
An O-ring provides the seal between the stirrer shaft bea-
ring and the reactor cover.
The reactor cover is fitted with three NS 29/32 standard
ground connectors and two NS 14/23 standard ground
connectors. These connectors are screwed to the cover
and sealed by O-rings.
One of the NS 14/23 connectors is fitted with a ventilation
and air vent valve, whilst the other connectors are closed
off with DIN 12252 ball valves.
18
precision bearings and is sealed with rotary shaft seals with
PTFE sealing lips for vacuum operation.
Penetration of the stirrer shaft inevitably produces wear
debris from the stirrer shaft seal. In order to keep this
debris away from the product, a protective ring has been
fitted to the stirrer shaft from below. The anchor stirrer is
also inserted into the stirrer shaft from below. The torque
is transferred by a square shaft to the anchor stirrer. This is
secured axially by means of a retaining ring.
Temperature sensor
(accessory)
Lock ring
Protective
ring
Flow breaker
(accessory)
Anchor stirrer
(Accessories)
The following IKA
system:
• EUROSTAR 200 control P4
• EUROSTAR 200 control
• EUROSTAR 100 control
• EUROSTAR 60 control
laboratory stiirers are available for this
®