Biomedical Products Division:

Hematology

Microbiology

Sweat Testing\Cystic Fibrosis

Osmometry

Cytology
AFB
7720
SLIDEPRO
15
 
Optional Cytopro Rotor

AEROSPRAY® WATER BASED
HEMATOLOGY STAINER/CYTOCENTRIFUGE

MODEL 7120

In a world where hype frequently outruns the facts, the Aerospray Hematology Stainer has become a dependable workhorse in labs all over the world; a mature, proven system with thousands of satisfied users who exceptional cleanliness, quality and dependability at an affordable cost.

Wescor offers a truly advanced approach to slide staining, ending costly and messy procedures. Microprocessor control and user programmability bring substantial savings in time and reagent consumption. Since stain is never reused, cross-contamination of specimens is not possible.

Wescor’s water based Hematology stainer (Model 7120) is an excellent choice for peripheral blood smears, bone marrow, and other body fluids. The Hematology 7120 fixes, stains and dries up to 12 high quality slides in about 3 minutes with no debris or precipitation.

Not content to rest on laurels, in the years since its introduction Wescor has continued to upgrade the performance of the 7120 Hematology Stainer to be state of the art and a cut above the competition. And all Aerospray stainers are backed by excellent customer service and support.

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

  • Reagent Economy - Reagent is applied to individual slides as an atomized spray. Reagent delivery conforms to the number of slides being stained, saving reagent costs.
  • User-Programmability - A choice of 10 intensity settings including 3 bone marrow settings make the Aerospray highly responsive to a wide range of staining requirements.
  • Convenience - An operator initiated clean cycle reduces maintenance to a minimum. It’s a clean no fuss process from start to finish.
  • Rapid Performance - With a cycle time of less than 4 minutes, the Aerospray Stainer is ideal for STATS, but with a throughput of more than 180 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 an optional Cytopro Rotor, the Aerospray Stainer becomes a superb cytocentrifuge with eight-slide capacity and keyboard programmability at a fraction of the cost of a stand-alone cytocentrifuge.
Optional Cytopro Rotor

THE WESCOR STAINING PROCESS FOR HEMATOLOGY

Smears are automatically fixed with methanol or with Aerofix fixative at the beginning of the staining cycle (alternatively, slides can be hand-fixed using methanol, Basofix, or other fixatives). After a drying sequence, eosin stain is applied to stain acidophilic cell components, followed by a brief period for stain penetration. Thaizin dye is then applied to stain the basophilic cell components, followed by another brief stain penetration period.

A buffered rinse cleans the slides of excess stain and is then removed by centrifugation. Slides are dry and ready for the microscope at the end of the cycle.

The Romanowsky Stain

The Aerospray Stainer uses a two-part aqueous Romanowsky stain. Its principal advantages are:

  • Rapid Staining Kinetics

    Blood smears are fixed, stained, and dried in about 3.5 minutes.

  • Improved Stain Stability

    The slow rate of decomposition of thiazin and eosin dyes in separate neutral aqueous solutions provides exceptional stability. Since changes in the stains occur very slowly, staining results are highly reproducible and consistent.

  • Clear Fields

    Since there is virtually no stain precipitation or debris, slides are exceptionally clean.

  • Reagent Concentrates

    All Wescor hematology reagents can be prepared from available concentrate to help defray shipping costs and to satisfy specific customer needs, such as neutrophil and overall color preferences.

Basofix®

For customers who prefer granulated basophils. Wescor offers Basofix fixative. This specially compounded formula yields stain coloration more reminiscent of alcohol-based stains. In addition to fixing basophil granules, primary granules are also strengthened.

With aqueous stains, basophil granules, which are water soluble, may be washed away in the staining process, but with experience, degranulated basophils are readily recognized.

Answering Today's Laboratory Needs

In the face of rising health care costs, any capital outlay must return maximum benefit for every dollar spent. The pressures of tight budgets, productivity demands and the need for diagnostic integrity make investment in the Aerospray Hematology Slide Stainer/Cytocentrifuge a choice that will please both the medical technologist and the laboratory administrator.

AeroSpray® Hematology Slide Stainer/Cytocentrifuge Specifications   Model 7120

Slide Carousel Capacity 1 to 12 Slides
Carousel Rotation Speed Reagent application 20 RPM, Slide drying approximately 1000 RPM
Cytocentrifuge Rotor Speed Programmable, 100 to 2000 RPM
Display 4 line by 16 character alpha-numeric LCD dot-matrix
Touch Pad Controls 10 Stain intensity selections, 10 Numeric Programming Keys, Run, Stop, Clean, Prog, CytoCent, Volume Test
Slides per 500 mL stain pack at medium setting Maximum 1200 (12 slides/run)
Minimum 600 (2 slides/run)
Operating Time 210-246 seconds, depending upon intensity setting (fix on)
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 lb)
Electrical Requirements 100V, 120V, 220V, or 240V @ 50-60 Hz (user selectable), 75 watts
Drain Connection Nipple on rear panel
Safety lid interlock: Lid must be closed, and is locked down during operation
Cytopro® Cytocentrifuge Rotor  Cat. No. AC - 060
Capacity 8 chambers / slides
Weight 1.3 kg (2.75 lb)
Dimensions (Dia. x H) 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-060

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 (7120)
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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".