BenchMark ULTRA IHC/ISH system

IHC Stain Automation—BenchMark Ultra pathology lab instrument Ventana

True continuous-access automated IHC/ISH slide
staining for unprecedented workflow efficiency

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BenchMark ULTRA Slide Staining System Technical Specifications

Unique features

  • Automated IHC/ISH platform manages STAT requests with no impact to in-process slides
  • Exceptional throughput — 90 slides per 8 hour shift
  • Individual slide heaters which eliminates need to batch runs


General characteristics

Fully automated

Baking, deparaffinization, cell conditioning and staining, including IHC, ISH, SISH, immunofluorescence, multiparameter IHC staining (dual, triple), counter stain and titration

Slide position

1–30 slides with independent processing/functionality and temperature control for each position

Reagent carousel

35 reagent positions


25 x 75 mm, 1 x 3 in or 26 x 76 mm positively charged slides

Bulk solutions

Up to 7 different bulk solutions can be changed “on the fly” without process interruption


Two 20 L carboys, can be changed "on the fly" without process interruption

DI Water supply

NCCLS Type II water or equivalent (deionized water)

Temperature control

Ambient to 100°C


One to eight VENTANA BenchMark ULTRA, VENTANA Discovery ULTRA or VENTANA BenchMark Special Stains instruments may be controlled from one BenchMark ULTRA computer system


Free standing


EC/EN 61010-1, IEC/EN 61010-2-010, IEC/EN 61010-2-101, IEC/EN 61010-2-081, EN 61326-2-6

Catalog number



Electrical specification




4–6 Amps


50/60 Hz


Physical characteristics

Size (W x D x H)

44.00 in x 33.10 in x 62.40 in (111.76 cm x 84.07 cm x 158.50 cm) 
13.5 in x 14.5 in x 13.5 in (34 cm x 37 cm x 34 cm)


650 lbs (294.8 kg)


Top 15 in (38.1 cm) 
Sides 4 in (10.2 cm) 
Rear 6 in (15.2 cm)


Environmental requirements

BTU/Hour output

400 BTU/Hr idle, 1000 BTU/Hr running

Room temperature

68°F to 90°F (20°C to 32°C)


10% to 90%, non-condensing