OTF7000 Cryostat

A High Quality and Versatile Cryostat

The OTF7000 Cryostat is suitable for a wide range of applications, including:

  • Biological research
  • Pathological diagnosis
  • Pharmaceutical research
  • Neuroanatomical research
  • Clinical cryo-sectioning needs

The OTF7000 Cryostat is available as the OTF7000/LS or OTF7000/HS.

Both machines include:

  • UV – to handle a large number of specimens and varying specimen types with UVC for increased user safety
  • Individually controlled temperature settings on both the cryochamber and the specimen holder
  • Vacuum cleaning system for optimal safety.

The OTF7000/HS includes all the features of the LS model with the following additions:

  • Motorised sectioning to improve reproducibility
  • Fully automatic operation with vacuum cleaning system.

There are also a wide range of useful accessories to create the ideal operational environment in your laboratory.

Contact us to find out more.

Key Features

Bright Instruments OTF7000 Cryostat


Our cryostat is extremely stable, both in terms of temperature control and sectioning quality.

Expert Temperature Regulation

Temperatures are regulated in the cryochamber between 0 to -35°C via:

  • An intelligent temperature control system
  • A compressor that adopts frequency conversion working mode
  • An optional cooling system that includes an adjustable temperature range of between -10°C and -50°C with low pressure cooling system and semi-conductor refridgeration, faster temperature regulation and low failure rate.

Stable Section Quality

Stable sectioning is maintained by:

  • Precision cross roller guide rails that guarantee section smoothness and accuracy combined with precise screw rods that meet 0.5µm sample injection requirements
  • Five phase, high resolution stepping motor with higher positioning accuracy and lower motor vibration
  • Horizontal sampling slide crafted from aviation aluminium, with ultra-high strength and corrosion resistant material.
Safe and efficient OTF7000 cryostat

Safe and Efficient

The OTF7000 cryostat includes a range of important safety features:

  • High-tech, low-temperature UVC disinfection technology that kills bacteria and viruses at an intensity of above 340 uw/cm², within both the inner surface and the air inside the cabinet.
  • Ergonomic exterior cabinet with a circular arc design. This is available with an optional height-adjustable foot rest.
  • Section waste is easily removed by using the optional section waste removal system which means that no manual cleaning is required.
  • Integrated waste management system that displays waste liquid volume on the touch screen.
  • An alarm to notify the user when the waste management bottle is full.

This expertly engineered machine delivers efficiency with:

  • A visually appealing 7 inch touch-sensitive screen.
  • A joystick that controls coarse sampling, trimming and section switching, as well as section parameter adjustment.
  • Rapid and precise positioning with ±8° visual pointer facilitating adjustment of the specimen clamp to the target angle. This reduces trimming and sample waste.
  • Efficient defrosting with a variety of options.
  • Auto-sectioning option available for ease of use and consistent sectioning of all specimen types.
  • Automatic sleep and wake-up feature that saves energy.
  • Specimen loading via a single lever operation.
  • Specimen marking to easily record and identify each sample.

Full Details

Specification arrow

  • Both OTF7000/LS and OTF7000/HS Cryostats Include:

    Section thickness setting range: 0.50–100 µm

  • Trimming section thickness setting range: 1–800 µm

  • Electric sectioning speed: 0-1800µm adjustable

  • Specimen retraction: 0-250μm adjustable

  • Specimen feed: 28mm

  • Vertical stroke: 70mm

  • Specimen orientation with zero position. Horizontal/vertical rotation: X/Y axis 8°

  • Number of refrigerated sites: 15

  • Number of fast cooling sites: 2

  • Freezer refrigeration temperature: 0℃ to -35℃

  • Sample head minimum cooling temperature: - 50℃

  • Low profile microtome blade featuring PLASMA technology, measuring 0.010" x 3.15" / 254mm x 80mm with 35° angle

  • OTF7000/HS:

    Fully automated and semi-automated mode switch

  • Emergency stop button

  • Cut window function

  • Slice speed selection

  • Multiple sectioning modes

  • Optional pedals

Accessories & Replacement Blades arrow



The following accessories are also available:

  • FS800-F3: Stationary heat extractor
  • FS800-F13: Foot rest
  • S700A-F3: Foot switch
  • FS800-F2: Blade holder assembly
  • FS800-F14: Movable shelf
  • FS800-F21: Storage system
  • FS800: Specimen discs:
    • FS800-F4 Specimen disc φ20
    • FS800-F5 Specimen disc φ30
    • FS800-F6 Specimen disc φ40
    • FS800-F7 Specimen disc φ55

Replacement Microtome Blades (50241)

  • Low profile microtome blade featuring PLASMA technology
  • Dimensions: 0.010″ x 3.15″ / 254mm x 80mm
  • 35° angle
  • 50 pcs


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