Clean, tested and in good working condition.
This is the complete internal assembly for the Option D disinfection fumigation unit from a Microm HM-550. The system functioned beautifully in our tests except for the ACA specimen advance. ACA failure was determined to be stepper motor and/or bearing failure but due to a shortage of replacement parts and a couple external cosmetic issues, we decided to part the unit out.
Comes exactly as shown with control boards, fumigation pump and mounting plate. Does not come with external media tank.
Hassle-Free Warranty.
HM-550 Motorized Microtome Cold Demo
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HM-550 Motorized Microtome Hands-Free Demo
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Manufacturer Description
HM550 Series
Open top cryostat. Modular design. Stainless steel cooling chamber.
Chamber temperature regulation variable from -10°C down to -35°C.
When the instrument is equipped with the option O, the specimen
temperature can be controlled from +10°C down to -50°C.
Graphic LC-display of set and actual temperatures, electronic control
with user-oriented touchpad keyboard, battery-buffered memory and
self-diagnostic system. Standby and sleep status for noise reduction and
energy savings. Automatic defrosting and in addition a manual defrost
cycle which can be activated when needed. Defrost interrupt on key-
stroke request. Integrated fast freezing device with controlled cooling
element down to -60°C (option P). Sliding window with heater and
integrated fluorescent lamp for cryo-chamber. Brush shelf and storage
space inside the cryo-chamber. Large, flat storage space on top of the
housing with integrated storage space for marked slides.
Rotary Microtome with backlash and maintenance-free cross roller
bearings in stainless steel. Electro-mechanical feed system.
Section thickness setting from 1 to 100 microns;
up to 10 μm in 1 μm-increments,
up to 20 μm in 2 μm-increments,
up to 70 μm in 5 μm-increments and
up to 100 μm in 10 μm-increments.
Trimming thickness setting from 5 to 500 microns;
up to 10 μm in 5 μm-increments,
up to 100 μm in 10 μm-increments,
up to 200 μm in 20 μm-increments and
up to 500 μm in 50 μm-increments.
Specimen retraction during the return stroke with optical indication.
Horizontal feed range 28 mm. Vertical cutting stroke 60 mm. Max.
specimen size 75 x 55 mm.
Motorized coarse feed in two directions with three speed selections.
Limit indication and automated switch off at front and rear limits of
horizontal travel. Automatic approach system for exact and safe ap-
proach of specimen towards the knife edge from -5°C to -35°C.
Section counter and indication of sum of section thicknesses with reset-
button. Indication of remaining travel.
Hand wheel brake in any position. Fine orientation of specimen with
zero device. Rotatable on Z-axis, 360°.
Basic outfit with three specimen chucks, 118 ml freezing medium, 100 ml
cryostat oil, brush shelf and section waste tray, consisting of two parts.
Option M:
Electric motor drive with electronic control of the cutting stroke.
Cutting speed variable from 0 to 250 mm/s. Accelerated return travel.
Freely selectable cutting zone.
Three modes of operation: interval, single and continuous stroke. Indi-
cation of hand wheel brake.
Manual control of motor drive via safety start procedure. Stop com-
mand selection via manual control, foot pedal or hand wheel brake.
Emergency stop key and foot pedal emergency stop.
Option V: (Not included)
Vacutome system for stretching cryo-sections as well as for the disposal
of sections when trimming.
The system consists of a duo filter system: The coarse filter collects the
section waste. The micro filter with a 99.99% filtration efficiency for
0.1 μm particles filters the air. The coarse filter is actively cooled in its
position in the cryostat.
A vacuum-generating unit with its controlling elements is also part of
the system.
Stretching and disposing of is controlled by the cutting window that
can be set on the microtome cryostat. The suction vacuum can be set
via an turning knob on the microtome cryostat.
Option D
A fumigation unit for the application of
disinfection media (Sanosil®) onto the operation areas in the cryo cham-
ber which are accessible for the user during the intended use.
Option O
Specimen cooling head.
