Biomedical Products Division:

Hematology

Microbiology

Sweat Testing\Cystic Fibrosis

Osmometry

Cytology
AFB
7720
SLIDEPRO
15
 
Optional Cytopro Rotor

AEROSPRAY® HEMATOLOGY
SLIDESTAINER/CYTOCENTRIFUGE

MODEL 7150
Wescor has developed a novel staining process for the methanolic Hematology stainer (U.S. Patent No. 6,058,432B2). Separate thiazin and eosin stains are blended in concentrated form, sprayed onto the specimen and partially evaporated by centrifugal airflow. This greatly accelerates staining and produces stains of superior quality. For dilute staining the blended stains are diluted with buffer.

FEATURES AND BENEFITS

  • Reagent Economy

    Reagent is mixed together and then applied to individual slides in the carousel as an atomized spray. Reagent delivery conforms to the number of slides being stained on any given run. Consequently, stain consumption is conservative and reagent costs are significantly minimized.

  • Convenient

    The Aerospray Stainer features user-selectable clean cycles that keep maintenance to a minimum. It's a clean no-fuss process from start to finish.

Every Aerospray is also a fully capable cytocentrifuge with the purchase of the optional Cytopro® rotor.

  • User-Programmability

    The Aerospray is highly responsive to a wide range of staining requirements, with a choice of 9 preprogrammed intensity settings for the Rapid Wright Giemsa, Wright Giemsa, May Grünwald Giemsa, and Custom Stain programs. Simply make your selection by pressing a single keypad.

  • Rapid Performance

    With a cycle time as low as 5 minutes, the Aerospray Stainer is ideal for STATS, but with a throughput of more than 120 slides per hour, it handles heavy loads easily. In either case, slides emerge dry and ready for the microscope.

  • Optional Cytocentrifuge Rotor

    For the cost of the optional Cytopro Rotor, the Aerospray Stainer becomes a superb cytocentrifuge with 8-slide capacity and keyboard programmability-all at a fraction of the cost of a stand-alone cytocentrifuge.

Optional Cytopro Rotor

Wescor Hematology (7150) Staining Process

Wescor has become a world leader in staining technology during the past two decades. The company has steadily improved the groundbreaking Aerospray staining method with advancements in staining quality, user-convenience and cost reduction. Wescor continues to innovate and listen carefully to those in the Hematology community to improve Aerospray.

The Model 7150 Aerospray is the result of this relentless search for excellence. Wescor has modified the traditional Romanowsky methanolic staining process with a unique mixing system that produces partially aqueous stains, while maintaining the advantage of separate storage of eosin and thiazin components. Aerospray employs centrifugal force to accelerate staining, and to dry the slides.

Simultaneous contact by both dyes produces the classic Romanowsky staining patterns with superior, textbook quality results. The Thiazin and eosin dyes are loaded separately onto the instrument to correct the reagent stability problems common with mixed stains. These stains are automatically mixed prior to application to produce superior results.

Aerospray offers a versatile selection of 9 different intensities for each of the 4 set programs: Rapid Wright- Giemsa, Wright-Giemsa, May-Grünwald Giemsa and Custom Stain with simple adjustment routines to tailor the staining to individual preference. A programmable function is also available for special staining requirements.

Fixation can be done in the instrument, or slides can be hand-fixed. While methanol is the normal fixative, Aerofix may be required in humid environments.

With the Aerospray you get up to 120 slides an hour and the convenience of cytocentrifugation in the same instrument.

Aerospray Hematology Slide Stainer/Cytocentrifuge Model 7150
Slide Carousel Capacity 1 to 12 Slides.
Carousel Rotation Speed Reagent application 20 RPM; evaporative staining 600 RPM; slide drying approximately 950 RPM.
Cytocentrifuge Rotor Speed Programmable, 100 to 2000 RPM.
Display 4 line by 16 character alphanumeric LCD dot matrix.
Touch Pad Controls 9 stain intensity selections (preset program). 10 numeric programming keys: Run, Stop, Clean, Prog, CytoCent, Volume Test.
Slides per 500 mL Stain Pack Maximum 1500 @12 slides/run (not including Clean Cycles) at Rapid 5 setting.
Operating Time 4 to 17 minutes, depending on setting.
Dimensions (W x H x D) 56 cm x 24 cm x 53 cm (22" x 9.5" x 21").
Clearance Height (lid open) 58 cm (23").
Weight 16.8 kg (37 lbs).
Electrical Requirements 85 to 264 Volts AC @ 60-60 Hz.
Drain Connection Nipple on rear panel.
Safety Lid Interlock: Lid must be closed, and is locked down during operation.
The Model 7150 Hematology Stainer is UL listed for operation at 120 Volts.
Cytopro® Cytocentrifuge Rotor (Catalog number AC-060)
Capacity 8 chambers and slides
Weight 1.3 kg (2.8 lb)
Dimensions 23 cm x 4.8 cm (9.0 x 1.875")

Buyer's Specifications

The hematology stainer shall be a Wescor Model 7120 Aerospray Hematology Slide Stainer/Cytocentrifuge and shall be capable of both staining and cytocentrifugation. The stainer shall have 7 stain intensity settings for peripheral blood smears and 3 bone marrow stain intensity settings. The stainer shall stain from 1-12 slides in less than 5 minutes and shall consume no more than 75 watts of electrical power and shall weigh less than 41 lbs. The stainer shall have an automatic clean cycle to clean spray nozzles and the interior bowl and staining carousel.
Wescor, Inc Cytopro Rotor for Aerospray Family Wescor, Inc Cytopro Rotor for Cytocentrifugation

Cytopro® Rotor

AC-160

The Cytopro Rotor allows you to turn your Aerospray® Stainer into a full-featured cytocentrifuge system. The Cytopro is truly simple to load and unload chambers and it is autoclavable for complete sterilization. You can also use this advanced rotor in most Shandon Cytospin systems with purchase of the Cytopro Rotor Adapter (AC-080).

Only Wescor's Cytopro rotor has these patented features:

  • Compressed flow control ring in the Cytopad® yields the highest cell recovery in the industry.
  • Automatic pad alignment. Parts snap together easily and correctly every time.
  • Convenient pre-wetting port for increased and more consistent cell yields.
  • Superior clamping mechanism for consistently reliable performance.
  • Sample protection cutout for trouble free chamber removal.
  • Smooth and positive push-lever chamber retraction.
Only Wescor's Cytopro sets the standard for convenience and ease of use:
  • Fast and easy loading and unloading.
  • Compact, lightweight rotor for ease of handling, storing and transporting.
  • Shallow rotor profile for easy access.
  • Slide label visible during sample loading.
  • Generous 7 mm sample display area (36% larger than the 6 mm Shandon Cytospin™ single).
  • Internal clamping-no loose parts.
  • Disposable/reusable chambers.
  • Choice of fast or slow absorbent pads.
  • Choice of single or double chambers each giving the same excellent results.
  • Using the Wescor Hub Adapter (AC-080), the Wescor Cytopro rotor can be used on the Thermo Shandon Cytospin® 2, 3 or 4.
Wescor also offers the Cytopro rotor in the following options:
  • Stand-alone cytocentrifuge (Model 7620)
  • Alcohol-based hematology stainer (Model 7150)
  • Aqueous-based hematology stainer (Model 7120)
  • Microbiology Gram stainer (Model 7320)
  • Microbiology Acid Fast Bacteria (AFB) stainer (Model 7720)
  • With the Cytopro adapter (AC-080) to run on the Shandon Cytospin
Request a Quote
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Hematology Stainer (7150)
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Cytopro Rotor
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Comparison 7120 vs. 7150
7120
7150
Economics
¢/slide*
¢/slide*
7120 #5
2.6
N/A
Rapid #5
N/A
4.5
Wright Giemsa #5
N/A
5.3
May-Grünwald Giemsa #5
N/A
7.1
Custom #5
N/A
6.8
Staining Times 3.5 to 4.1 min. Rapid 3.2 to 6.7 min.
W Giemsa 5.4 to 9.2 min.
MG Giemsa 6.8 to 10.6 min.
Custom 6.3 to 9.7 min.
Maintenance
Nozzles Disassemble monthly. Disassemble weekly to monthly.
Intra-day Nozzles None. Occasionally brush & spray between runs
Carousel Cleaning depends on use. Cleaning depends on use.
Instrument No Line flush. Semiannual to annual line flush (automated).
Staining
Basophils Degranulated (or use Basofix). Well-stained granules.
Auer Rods Uncertain. Well-stained rods.
Toxic Granulation Weak. Adjustable--with spin time as desired.
Primary Granulation Weak. Strong--somewhat adjustable.
Debris Almost debris free, exceptionally clean. Minimal microscopic debris. Some visible debris on slide surface.
Overall Typical of water based stain. Typical Wright Giemsa stain. Adjustable - programmable.
Hazardous Shipping Fees Non-hazardous stains. Aerofix and Basofix predip are hazardous (No DG fees - ground). Aerofix and prepared B & C are flammable (No DG fees-ground). Concentrate - non hazardous.
Overall Convenient and economical for diff counts and other routine work. Best choice for advanced diagnosis and non-routine staining needs.
*Cost per slide is based on 12 slides at intensity 5 using prepared reagents including prepared Aerofix. Using 171A500 in the 7150 and maximizing volume discounts with blanket orders can lower costs by 35- 50%. See "Economic Benefits 7150 Hematology Stainer".