Used Sargent Welch 4×4 Magnetic Stirrer (Model S 76491-10)

Compact Laboratory Magnetic Stirrer for Small Beakers and Flasks

Equip your teaching lab, research facility, or QA/QC environment with reliable, everyday mixing capabilities while protecting your equipment budget with this pre-owned Sargent Welch 4×4 Magnetic Stirrer (Model S 76491-10).

Manufactured by Sargent Welch, this compact benchtop magnetic stirrer provides smooth, adjustable mixing for a wide range of laboratory solutions. By sourcing this fully tested, used magnetic stirrer through HiTechTrader, laboratories can easily add an additional mixing station or replace older units at a fraction of the cost of buying new equipment.

Condition & Unit Details

• Condition: Fully inspected, used magnetic stirrer in excellent working condition.

• Testing: Powered on, motor and magnetic coupling fully tested across all speed ranges by our technicians.

• The HiTechTrader Guarantee: Backed by our standard 30-day limited warranty. We have been a trusted provider of high-quality used laboratory and scientific equipment since 1982.

Compact Design for Small Laboratory Beakers

The 4 × 4 inch top plate design makes the Sargent Welch S 76491-10 ideal for mixing small volumes in common laboratory glassware. Because of its small footprint, the stirrer fits easily into crowded laboratory workspaces, helping maximize usable bench space in busy environments.

Typical vessels used with this compact stirrer include:

• Small beakers (50 mL to 500 mL)

• Erlenmeyer flasks

• Reagent bottles

• Sample containers

Analog Speed Control for Adjustable Mixing

The stirrer features analog speed control, allowing users to smoothly adjust stirring speed depending on the viscosity and volume of the solution being mixed. The adjustable stirring speed allows the stirrer to handle everything from gentle reagent mixing for delicate samples to stronger agitation for dissolving solids.

Benefits of analog speed control include:

• Simple, intuitive operation

• Adjustable mixing intensity

• Precise control without the need for complex electronics

• Highly reliable performance for student laboratory stations

Durable Construction for Long Service Life

Laboratory equipment must withstand daily use and continuous operation. The Sargent Welch magnetic stirrer is designed with durable components and a straightforward mechanical system that ensures long-term reliability. Key durability features include a rugged laboratory construction, a low-maintenance design, and a highly dependable magnetic drive system. This makes the stirrer a dependable option for laboratories that require consistent performance across thousands of mixing cycles.

Technical Specifications

• Manufacturer: Sargent Welch

• Model: S 76491-10

• Stirrer Type: Magnetic Stirrer

• Top Plate Size: 4 × 4 inches

• Speed Control: Analog Variable Control

• Design: Compact benchtop format

• Application: Laboratory mixing for small beakers and flasks

Nationwide Shipping 

Whether you need a single replacement stirrer or are outfitting multiple stations in a new teaching lab, HiTechTrader provides rapid, secure shipping nationwide from our primary facility in Coatesville, Pennsylvania.

We routinely ship benchtop equipment to research institutions, educational facilities, and industrial labs across the country. Whether your facility is located locally on the East Coast, in major biotech and tech hubs like the San Francisco Bay Area and California, or anywhere in between, we ensure your used laboratory equipment arrives safely and ready to plug in.

Frequently Asked Questions (FAQ)

What is a magnetic stirrer used for in a laboratory? A magnetic stirrer uses a rotating magnetic field to drive a small magnetic stir bar placed inside a container. This provides automated, consistent, and hands-free mixing of liquids, buffers, and reagents without the contamination risks associated with external mechanical stirring shafts.

What size glassware fits on a 4x4 magnetic stirrer? A 4x4 inch top plate is specifically designed for small-volume mixing. It is ideal for securely holding small beakers, Erlenmeyer flasks, and reagent bottles, typically ranging from 50 mL up to 500 mL in volume.

Why choose an analog magnetic stirrer over a digital one? Analog magnetic stirrers, like the Sargent Welch S 76491-10, are highly valued in teaching labs and QA/QC environments for their durability and simplicity. They feature straightforward dial controls that allow for quick, intuitive speed adjustments with fewer electronic components that could fail over time.

Buy the Used Sargent Welch S 76491-10 Magnetic Stirrer

HiTechTrader offers the pre-owned Sargent Welch 4 × 4 Magnetic Stirrer (Model S 76491-10) as a dependable mixing solution for laboratory environments requiring compact and reliable stirring equipment.

Whether you need a replacement stirrer for an existing workstation or an additional mixing station for a busy lab, this unit provides consistent performance in a convenient benchtop format.

Contact HiTechTrader today to:

• Request pricing

• Confirm availability and current stock quantities

• Discuss expedited shipping options to keep your lab running smoothly