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Barnstead/Thermolyne Nuova™ Hot Plate Stirrers, Thermo Scientific


SP18425Q SP18420Q
Low-profile design, with speed range of 100 to 1000rpm. Speed control and eddy current braking system eliminate stalling at low speeds. Direct-drive motor system delivers quiet, smooth stirring action at low speeds and thorough churning action at higher speeds. Porcelain-coated, stainless steel top plate is chemical-resistant and easy-to-clean. Drip edges protect unit from spills. White finish for high visibility of liquids being heated and stirred.

Case is sturdy, die-cast aluminum with chemical-resistant white finish. Demand-type thermostatic control with embedded heating element and the good thermal transfer properties of the top provide quick response to surface temperature changes, within ±5°C (±9°F) at top temperature. No need to readjust control. Heating power brings plate to 371°C (700°F) in just eight minutes. Cycle light indicates when power is being applied to heating element. Large drive magnet located close to top plate for maximum torque. Fluoropolymer resin-coated stirring bar stays coupled with drive magnet, even in moderately viscous solutions. Built-in ring stand holder accommodates mounting of thermometers, probes, and other accessories.

Certifications: UL and C-UL listed.

Ordering information: Supplied with one fluoropolymer resin-coated stirring bar, three-wire cord, and plug.



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Electrical Speed Range Temperature Range Supplier No. Catalog Number Unit List Price Quantity
120V, 60Hz, 858W 100–1000 rpm 0 to 371°C (700°F) SP18425Q H-6240-1 Each Retrieving


Dimensions 17.8 x 17.8 cm (7 x 7") top plate, 30W x 11.4H x 21.8D cm (113/4 x 41/2 x 81/2") overall, 5.1L x 1dia. cm (2 x 3/8") stirring bar
Shipping Weight 5 kg (11 lbs.)
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