Microtome Thermo Scientific HM 340E
Designed for precision and
stability which yields quality ribbons even for difficult to cut paraffin
sections, the Epredia™ HM 340E Electronic Microtome is an ergonomically
designed, electronic rotary microtome with stepping-motor advance technology
for precision and stability to provide superior sectioning results.
Ordering Information:
Includes:
|
Product Type |
Rotary Microtome |
|
Includes |
Standard Pkg |
|
Sectioning Range |
0.5 to 100μm |
|
Depth (English) |
20.5 in. |
|
Depth (Metric) |
52 cm |
|
Height (English) |
11 in. |
|
Height (Metric) |
28 cm |
|
Width (English) |
16 in. |
|
Width (Metric) |
41 cm |
|
Weight (English) |
62 lb. |
Thermo
Scientific Rotary Microtome Microm HM 340 E
DESCRIPTION
ROTARY MICROTOME HM 340 E
The
Rotary Microtome HM 340 E from Thermo Fisher Scientific Microm International
GmbH is a highly efficient multi-purpose microtome which can be used for
paraffin, hard- and semithin-sectioning techniques in biology, medicine,
industry and research. The HM 340 E sets new ergonomical standards concerning
operation and comfort. The instrument is equipped with a section waste tray
with integrated arm rest, which is built around and under the knife carrier for
direct collection of section waste. This model can be equipped with all
specimen clamps and knife carriers of the Rotary Microtome series. In addition,
the stereomicroscope or the large field magnifier can be adapted. The HM 340 E
will cut sections in a range from 0,5 µm up to 100 µm. For the protection of
knife and specimen, the instrument retracts the specimen at the end of the cut.
If desired, the function can be turned off. The motorized coarse feed system
allows the continuous specimen forward and backward travel with three different
speed settings. This way, specimen and knife edge distance can be adjusted
quickly. A trimming function with defined steps from 5 µm to 500 µm permits the
fine adjustment up to the first cuts and results in larger section thicknesses
when trimming. The operating panel is installed on the left side of the
microtome. It can be removed and used separately. The selected section
thickness, trimming thickness, section counter, sum of section thicknesses,
remaining travel to the front end position as well as the current date and time
are indicated on the display of the operating panel.
The
knife carriers are designed so the knives can be easily clamped in place and
adjusted. In addition, the instrument is equipped with a hand wheel brake that
locks in any position. The manual rotary movement of the hand wheel of the
Rotary Microtome HM 340 E is converted into a vertical movement of the cylinder
head which carries the specimen holder. Sectioning is carried out by knives or
blades, which must be adjusted and fixed on the knife carrier. With the
downward movement of the specimen, sectioning is carried out (cutting
movement). The upward return travel of the specimen is carried out by turning
the hand wheel further in clockwise direction. During this return travel, the
specimen is drawn back to protect knife and specimen. If desired, the function
can be turned off. The selected section thickness is delivered at the upper
reversal point of the return travel. The number of the sections made can be
shown on the section counter on the display. After each downward movement of
the specimen holder, the number on the section counter increases by 1. The sum
of the sections carried out can also be seen on the display. For this, trimming
values and sectioning values are added up. Section counter and sum of section
thicknesses can be reset to zero at any time by means of the RESET-button.
Moreover, the remaining travel to the front end position can also be shown on
the display. The remaining travel, which is still available for sectioning, is
shown in microns. If the specimen holder is in the back end position, the
display shows 28 000 µm. This number decreases, the further the specimen holder
is moved towards the front. The fast freezing unit K-34 allows frozen
sectioning with the specimen temperature as low as -45°C