Cole-Parmer SD laboratory mixers ensure accurate, dependable motor speed control with “soft-start” feature and smooth, gradual adjustment to the speed setting. Constant speed is maintained electronically via automatic compensation for changes in load torque demands at both high and low speeds. Built-in motor current compensation minimises speed drift with changes in load. Motor current limiting protects the system in case of a locked rotor condition. Output circuit protection protects against inadvertent output shorting.

• Mixer rotates at 50 to 2500 rpm with a maximum torque of 113 in-oz (80 Ncm) and has a through-shaft capability
• Bracket hardware is preinstalled to enable installation of the adjustable tilt mounting bracket
• Motor cable connector has a locking mechanism when the cable is connected to prevent unintended disconnection in the event of accidental force on the motor cable
• Precision digital controller is used to turn on and set the speed, timer, direction of rotation, and torque limits for the mixer motor
• LED indicators identify the function being displayed, and a flashing LED and audible alarm indicate when limit conditions have been reached
• Four-digit LED display indicates rpm, torque, time, and rotation direction
• Durable - no wear user serviceable parts
• Low/no maintenance brushless motor
• Adjustable tilt from 0 to 30 degrees allows proper propeller placement
• IP44 rated per IEC 60529
• User-replaceable keyless chuck
• STI4530 mixer set includes mixer motor, bracket, digital mixer controller and power cord
• STI4532 mixer system includes mixer motor, bracket, digital mixer controller, mixer stand, double rod clamp, 18 x 3/8" shaft, 3" propeller and power cord