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Every lab should have at least one centrifuge, and the Ultra 8 series offers
perfect all-around solutions at very reasonable prices... they have all the
features you'd expect in a tabletop centrifuge: variable speed, timed shutoff,
quiet operation, and sturdy construction.
The Ultra 8 series centrifuges are very useful for separations in analytical
work. They're also ideal as part of any small-scale protein purification,
such as catalase experiments in the classroom.
Ultra 8V Specifications: • 8-place rotor • Variable speed control • Auto-off 30-minute timer • Runs on 110/120 volts AC • Includes eight 15-mL tube sleeves • Includes eight tube sleeve inserts that hold 12 x 75 mm test tubes • Will accept standard 15 mL centrifuge tubes • Suction cup feet help prevent slipping • Locking lid is impact-resistant & transparent • Safety shut-off switch in lid • One-piece, all-metal body • 1-year materials & workmanship warranty |
Centrifuge use and safety tips are available on their own page. Ultra 8V: Variable speed Ultra 8S: Select-speed Ultra 8T: Variable with tachometer Please see below for details |
Footprint / Width: The centrifuge's footprint is an equilateral triangle (with the corners truncated). The maximum width of the unit is about 14 3/4 inches.
Height: Maximum height (taking into account the locking knob on the lid) is about 9 inches.
Weight: 15.5 lbs.
Ultra 8 Variable Speed
...The analog speed-control dial on the Ultra 8V allows a full range of
rotor speeds up to 3300 rpm, for a maximum RCF of 1350 x g. The lid has a safety-shut
off switch; however, if the rotor is moving already, it will continue
to spin under its own inertia even after the lid is opened. If you require
a "zero rpm lock", please consider the Ultra 8 "Tach" (see below).We also offer a hand-held tachometer (sold separately; see below) that is useful with this unit; calibrate your Ultra 8V with the tach and use it to mark specific speeds around the dial.
Ultra 8V centrifuge................$329
Manuf. suggested retail is $375
Ultra 8 Select
... features 4 pre-set speeds so you don't have to guess. The Ultra 8S allows clinical laboratories to spin body fluid samples at precise, CLIA recommended speeds. This allows samples such as blood to be spun fast enough for consistent separation, yet it prevents cell structures from being torn apart by excessive rotor speeds.Ultra 8S Centrifuge..............................$379
Manuf. suggested retail is $449
Ultra 8 Tachometer-equipped
... features variable speed (like the Ultra 8V) but also has built-in tachometer with a digital display to tell you the rotor speed in rpm. This is very useful in protein purifications and other procedures where exact rcf ("relative centrifugal force") is critical. The Ultra 8 Tach centrifuge has a "0 rpm lock" that prevents opening of the centrifuge until the rotor has stopped completely.Ultra 8T Centrifuge..............................$599
Manuf. suggested retail is $739
Digital Tachometer for Centrifuges
...a separate, hand-held unit that allows quick and easy determination of your exact rotor speed. This is highly desirable if you're doing biochemistry, cell biology, and so forth. If you don't need the 0-rpm lock feature of the Ultra 8T but want a tachometer, buy this handheld tach and an Ultra 8V to save some money.
Digital Tachometer................................$179
MSRP is $189
Centrifuges are usually ready to ship 5-7 business days after we receive your order.
Looking for centrifuge tubes? 12 x 75 mm test tubes will work in the smaller inserts. Standard 15 mL centrifuge tubes (glass, unmarked) are also in stock.
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