Semi-automatic Cryostat Microtome

ST 500 is a semi-automatic cryostat microtome whose specimen's forward and backward movements are controlled by the motor. So it can get high-quality sections and easily operated.

It is designed under overall engineering and ergonomic concept. All the components are processed by a computer numerical controlled machine.
The retraction function prevents specimen damage from the blade.
Total thickness calculation.
The low-temperature refrigeration system with environment-friendly refrigerant R404.
Adopt UV and O3 sterilization for 30 minutes every time.
Peltier specimen clamp refrigeration may be turned on or off manually.
Two defrosting methods: automatic and manual.
The high-precision unit is enclosed outside the cryostat chamber to prevent it from thermal expansion and contraction, and to keep minimum maintenance requirements.
An artificial intelligent interface is easy for users to learn and operate.
The LCD screen can display all information including thickness, thickness sum, controlling time, temperature, timed on/off, and so on.
Sleep Function. After activating this function, the temperature in the cryostat chamber can be kept between -1℃ and -10℃; After stopping this function, the temperature in the freezing chamber will arrive at a working temperature within 30 minutes.
A Control panel with a locking function could avoid the wrong operation.
Handwheel locking function.
Wide freezing shelves can load 8 specimen cassettes simultaneously, and two of them are equipped with Peltier to meet different temperatures.

Freeze chamber minimum temperature： -35℃±2℃
Freeze shelf minimum temperature：-45℃±5℃
The lowest temperature of the Peltier unit on freeze shelf：-55℃±5℃
The lowest temperature of the Peltier unit on Specimen Clamp：-50℃±5℃(the working time of the Peltier is 15 minutes.)
Maximum specimen size：35×35mm
Specimen vertical stroke：48±1mm
Specimen horizontal stroke：15±0.2mm
Coarse feeding speed：300μm/s (slow) or 900μm/s(rapid)
Section thickness range：

0μm～100μm adjustable;
0μm～3μm, in 0.5μm increments;
3μm～10μm, in 1μm increments;
10μm～20μm, in 2μm increments;
20μm～100μm, in 5μm increments;