Intro
World leaders in sample preparation
Thank you for purchasing this Seward product
This manual contains operating instructions for the Stomacher® 400 Evo.
The Seward Stomacher® was developed in the early 70’s in response to ever- increasing demands for
sample preparation in a fast, consistent and efficient way. Since then, Seward have continually developed
the Stomacher® to maintain its position as the market leader ensuring exacting performance, high quality
and exceptional reliability.
This manual provides the user with all the information to install, operate and maintain the Seward
Stomacher®. Please read the manual carefully before using this equipment.
CAUTION: - This equipment should not be used if damaged in any way. If in doubt please contact your local
Seward authorised service centre.
Should any other questions arise please do not hesitate to contact the
Seward Customer Service Department on:-
Telephone: +44 (0)1903 524600
The Seward Stomacher® is a unique homogenising instrument in which the sample is blended within a
special disposable bag. The instrument acts on the bag in an action similar to the action of a stomach,
hence the name Stomacher®.
The instrument is comprised of an electric motor-driven worm gear unit with twin output shafts coupled to
flexible crank mechanisms, which in turn operate two reciprocating paddles. The paddles act on the flexible
plastic bag to create the blending forces termed the ‘stomaching’ action. An important feature of the
system is that the working parts do not come into direct contact with the sample being processed.
Protection from the moving parts inside the sample compartment is provided by a protective seal which
automatically closes the bag inside the paddle chamber. A cut-off switch ensures the unit cannot work
while the protective seal is open or the cover is missing.
Stomacher® is a registered Trademark and may not be used without the express permission of Seward Ltd.
www.seward.co.uk
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Seward is a part of the FermionX Group.
