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Microm HM355 S Rotary Motorized Microtome w/ Foot Switch & Knife Assembly

Tested & Guaranteed to Work. Backed by 90-Day Warranty.
AdID: 16068

Availability: In stock


Microm HM 355 S Rotary Motorized Microtome - Tested and Guaranteed to Work

This Microm HM355 S motorized microtome is guaranteed to work, having been tested and serviced here at New Life Scientific. With its included foot switch, specimen clamp, waste tray, and knife assembly, all you’ll need to start slicing samples is a blade (of which we have disposable ones available for purchase).

Generously Cleaned, Lubricated, and Tested

In his maintenance procedure, our technician disassembled, thoroughly cleaned, and lubricated this HM355 S. Lubrication increases the lifespan of the mechanical components, improving instrument longevity.

Perfect Performance. Need I Say More?

- Tested automatic specimen advance & retraction: PASSED
- Tested motorized cutting: PASSED
- Tested safety stop button: PASSED
- Tested controller: PASSED
- Tested foot switch: PASSED

As you can see, each one passed our tests with flying colors.

Note: While the foot switch is functional, it does not initiate cutting - it only stops cutting. We believe this to be common among all HM355 S microtomes.

Basically a 355. But Better.

The 355 S’s predecessor (predictably called the 355) is quite similar to its updated counterpart in most ways. However, there’s one key difference:

The 355 is prone to motor failure.

This is due to the fact that the 355 moves the knife up to the sample. This means that when the knife assembly raises, the mechanisms beneath it are exposed. Continually exposing these parts to the open air allows gunk to clog the gears, eventually killing the motor.

The engineers of the 355 S ameliorated this problem by raising the sample to meet the knife, instead of vice-versa.

If you’ve ever owned a 355, you’ll love the 355 S.

All You’ll Need is a Knife

You will receive the following:

- Microm HM355 S Rotary Motorized Microtome*
- Foot switch
- Knife assembly*
- Specimen clamp
- Power cord

All you’ll need to start slicing samples is a knife (we have disposable ones available separately. Just to let you know).

*There are no inserts for the flat rotary buttons on the left side of the instrument, but the buttons are still fully operational. You’ll need to supply your own button inserts or just use something narrow (like a ballpoint pen) to rotate them.

From a Professional Dealer to Your Lab

New Life Scientific is an experienced scientific vendor with a history of positive customer experiences (just check out our reviews!). You can have confidence in our technical evaluations and our warranty knowing that we have actual in-house technicians who inspect, test, service, and repair the various instruments we receive. 

After their examinations and being cleaned inside and out, products often leave our shop meeting manufacturer specs. When you buy from New Life Scientific, you’re free to contact us at any time for after-sales support concerning any questions or issues that may arise, even after your warranty expires.


Serial No.


Catalog No.


Fine Section Thickness Range

0.5 - 100 µm

Feed Resolution

0.5 µm steps for 0.5 - 5 µm
1 µm steps for 5 - 20 µm
2 µm steps for 20 - 30 µm
5 µm steps for 30 - 60 µm
10 µm steps for 60 - 100 µm

Trim Section Thickness Range

5 - 500 µm

Trimming Resolution

5 µm steps for 5 - 10 µm
10 µm steps for 10 - 100 µm
20 µm steps for 100 - 200 µm
50 µm steps for 200 - 500 µm

Storage Temperature Range

-20°C to +50°C

Operating Conditions

+10°C to +40°C
Max. rel. humidity of 60%

Electrical Requirements

115V, 1.6A, ±10%, 50/60Hz

Dimensions (W x D x H)

18” x 19.25” x 11” (45.7 x 48.9 x 27.9 cm)