Ohaus STMP9AL powerful magnetic stirrers with nine positions provide precise speed control and delivers repeatable performance. Constructed in robust cast aluminum housing, with a chemical-resistant glass-filled nylon top plate that minimizes unintended heating of samples. Accommodates up to 9 x 250ml Flasks. Ideal for Dissolution Studies, Titrations, Media/Reagent Preparations, Synchronized Stirring of multiple samples.

Speed ramping feature slowly increases the motor speed for improved safety and enhanced coupling. Avoids splashing, improves spin bar control and provides excellent low-end speed control. Analog models have an adjustment knob with dial markings from 1-10. The microprocessor regulates adjustments throughout the range.

Includes stir bars to accommodate each stirring position. 

Specifications:

Capacity	9 x 250mL
Control	Analog
Dimensions	4 in x 17 in x 11 in (970 mm x 432 mm x 279 mm) (HxLxW)
Net Weight	14 lb (6.3 kg)
Plate Construction	Glass Filled Nylon
Plate Size	12.5 in x 11 in (318 mm x 279 mm)
Power	120V, 1.3A, 50/60Hz
Power Consumption	75 W
Safety Certification	UL;  cUL
Speed Range	60 rpm to 1400 rpm
Timer	1 second – 160 hours
Working Environment	41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing)

Additional Literature:

Ohaus STMP9AL Datasheet 
Ohaus STMP9AL Manual