PR1MA™ Hotplates, Magnetic Stirrers, and Hotplate-Stirrers

• Ceramic work surface, 7.1 x 7.1 In.
• Stir speed from 60 to 1500 rpm
• Temperature control up to 380 °C
• Three models: heat-stir, heat-only or stir only

PR1MA™ hotplates, stirrers, and hotplate-stirrers feature an exceptionally durable, chemical-resistant white ceramic work surface. Their space-efficient design (8 x 9 in. footprint), makes them ideal for use on crowded benchtops and inside of bio-hoods.

Advanced microprocessor controls with convenient turn knobs allow quick, precise adjustment and maintenance of speed and temperature. Safety indicator LED’s on the front panel indicate when the heating and/or stirring functions have been activated. With a square 7.1 In. work surface, all three models are compatible with a wide variety of popular sizes of borosilicate glass beakers, flasks, bottles, and other vessels. The hotplate/magnetic stirrer model (MS-1500) comes complete with a support rod for mounting thermometers and temperature probes.

Specifications

Temp. Range	80 °C to 380 °C
Speed Range	60 to 1,500 rpm
Platform Dimensions	7.1 x 7.1 In. | 180 x 180 mm
Operating Temp. Range	+4 °C to +65 °C
Dimensions	8.5 x 10 x 4.5 in.
(W x D x H)	20 x 23 x 11.5 cm
Weight	9 lbs | 4 kg
Electrical	120 V, 60Hz
Warranty	2 years

 
Models 

HP-380	PR1MA™ Hotplate
MS-1500	PR1MA™ Magnetic Stirrer
SH-1500	PR1MA™ Hotplate Magnetic Stirrer

 
 

• Large white ceramic top plate
• Digital speed and temperature control
• Safety LED indicates hot surface
• Available with stir capacities up to 15 L
• Control actual temperature (with optional probe)

Benchmark Scientific Hotplates and Stirrers provide reliable performance and safe operation for everyday laboratory use.  With two sizes (7 inch or 10 inch) to choose from, each model features a durable, chemical resistant, white ceramic top plate and advanced microprocessor controls.  The constant monitoring system provides precise control of temperature (heating models only) with rapid heating and faster boiling times.  In addition, the powerful motor drive system of the magnetic stirrer ensures efficient mixing in larger vessels and more viscous samples.
 
Temperature and/or mixing speed can be viewed at all times on the large digital display and safety LED illuminates when the top plate temperature exceeds 50°C.  An optional external temperature probe can be used for applications that require precise temperature control.  The probe provides direct feedback to the microprocessor with adjustments for maintaining the selected sample temperature within ±1°C.  An optional clamp assembly (H3770-CS) is available for mounting thermometers, temperature probes, etc. 

BenchMate MS1 and MS4 Magnetic Stirrers

• Motorless unit with a very slim profile
• No moving parts – truly maintenance-free
• Pulse mode – reverses the stirring direction every 30 seconds for more intense mixing when needed

MS1 Magnetic Stirrer:

• Adjustable speed from 15 rpm to 1500 rpm in steps of 50 rpm
• A stirring capacity of up to 800 mL
• Supplied with high-strength PTFE magnetic bar (25 x 8 mm)

MS4 Magnetic Stirrer:

• Adjustable speed from 15 rpm to 1200 rpm in steps of 50 rpm
• Includes 4 high-strength magnetic stirrer bars (8 x 25 mm)

The Oxford Lab Products BenchMate MS1 and MS4 Magnetic Stirrer units simplify stirring for a variety of laboratory applications. With a slim profile, compact design, and no moving parts this magnetic stirrer design is truly maintenance-free. The unique Pulse mode of these units reverses the stirring direction every 30 seconds to enhance mixing for difficult-to-dissolve or mix solutions.

These BenchMate MS1 and MS4 Magnetic Stirrer units have no moving parts, therefore there are no parts to wear out due to friction. The adjustable speed range of these units depends on the model. The MS1 speed range is from 15 rpm to 1,500 rpm and the MS4 speed range is from 15 rpm to 1,200 rpm. The corrosion-resistant stainless-steel top surface fights any damage or corrosion from harsh chemicals.
 

Specifications 

HS-10 PLUS™ Multi-functional Hotplate Stirrer

• Multi-functional design
• Simultaneously heat and stir up to 5 vessels
• Large, 10 x 10 in., white, ceramic top plate
• Digital speed and temperature control
• Safety LED indicates hot surface
• Control actual sample temperature (with optional probe) 

The Benchmark™ HS-10 Plus™ Hotplate Stirrer supports heating and stirring of up to five sample vessels, simultaneously. Unlike traditional multi-position stirrers, the HS-10 model features a large (10 x 10 in.) square top plate that provides the flexibility to heat and stir larger sample vessels, up to ten inches in diameter (including 1 x 10 L bottles).

The top-plate features a durable, chemically resistant, white-ceramic coating that provides exceptionally uniform heating for temperature up to 400°C. The five stirring locations are clearly marked, to ease sample loading and ensuring proper positioning of vessels.

Temperature and mixing speed can be viewed on the large digital display and a safety LED illuminates when the top plate temperature exceeds 50°C. An external temperature probe can also be used for applications that require precise control of sample temperature. The probe provides direct feedback to the microprocessor with constant monitoring and adjustments for maintaining the selected temperature in the sample within +/- 1°C.

Specifications   
 

Temp Range	35°C to 400°C
Speed Range	150 to 1500 rpm
Platform Dimensions	10 x 10 in. | 25.4 x 25.4 cm
Positions	5
Bottle Capacity	1 x 10 L | 2 x 2 L | 4 x 1 L | 5 x 500 mL
Dimensions (w x d x h)	11.6 x 16.7 x 4.5 in. | 29.5 x 42.4 x 11.4 cm
Weight	16.5 lbs | 7.5 kg
Electrical	120V or 230V 50-60Hz, 750W
Warranty	2 Years

 

Guardian™ 2000 Hotplates and Stirrers

Dependable OHAUS Guardian 2000™ Hotplates and Stirrers are ideal for education and other lab environments that require affordable, everyday fast heating and reliable stirring up to 15 L. All three sizes offer simple knob control to easily adjust the heating and stirring functions. The durable housing includes a built-in support rod holder that accepts the optional support rod. Stirring models include PTFE-coated stir bars.

Main Attributes

• Applications
• Boiling Liquids, Basic Sample and Solution Preparation, Dissolving Buffers and Reagents, Preparing Media, Concentrating Samples
• Display
• Prominent hot top indicator light, green indicator lights when unit is heating and stirring
• Operation
• Simple knob control, stirring up to 1600 rpm, temperature up to 500°C (ceramic top) or 380°C (ceramic-coated stainless steel top), power cord (included), stirring models include PTFE-coated stir bar
• Construction
• Durable metal housing, PET front panel, control knobs, ON/OFF switch for heater disconnect, built-in support rod holder, easy to clean resin, ceramic or ceramic-coated stainless steel tops
• Design Features
• Hot top indicator light to protect user, green indicator lights illuminate when unit is heating and stirring

Limited Time Promo!

For a limited time, buy two Guardian™ 5000 Hotplate Stirrers (30981778)
and get one FREE (30981778-VF)!

 

Add items at the listed price, and one “-VF” item to order free product.

 

Free offers require purchase of designated items at listed price. Offers expire 12/31/2025. Not valid on previous purchases.
Special price applies only to item specified. Other capacities or items cannot be substituted.
All terms and conditions apply.

Guardian 5000™ Hotplates and Stirrers

Generation Guardian 5000™ Hotplate Stirrers are engineered for safety and versatility across research, academic, and industrial settings. They offer powerful heating and mixing, with premium hardware and software to support diverse users safely and reliably. Heating models reach up to 550 °C and feature 3 temperature control modes for quick heating or precise heating without overshoot. Select from 5 models with 3 plate sizes.

Main Attributes 

• Applications
• Temperature Sensitive Chemistry and Biology, Heat Fixation, Solution pH Optimization, Solution Sterilization, Endothermic Reactions, Denaturing of Organic Material, Sample and Solution Preparation, Dissolving Buffers and Reagents, Preparing Media, Boiling
• Display
• Backlit LCD display with white characters, integrated heating/stirring status indicators in green, and a prominent hot top indicator in yellow
• Operation
• 100-120 VAC or 220-240VAC 50/60Hz power entry, rotary switch knob(s) control
• Communication
• RS232 for data logging and remote control
• Construction
• Robust full metal housing, ceramic square top plate or ceramic-coated aluminum round top plate, high performance SmCo magnet
• Design Features
• Large dip angle front panel for easy monitoring from a distance, smooth enclosure surfaces for easy cleaning, audible alarm, IP32 protection, rapid install splashing shield (optional)

Benchmark™ MiniMag™ Magnetic Stirrer

• “Mini” sized, less than 3.5″ wide
• Adjustable speed control, 100 to 1500rpm
• Effectively mixes volumes up to 1.5L

With a square footprint of under 5 inches, the MiniMag™ is the most compact stirrer in the Benchmark line. Despite its modest dimensions, the 3.4-inch square work surface accepts a wide variety of beakers, flasks, bottles, and other laboratory vessels for stirring volumes as large as 1.5 liters.

The stirring speed is continuously adjustable from 100 to 1500rpm. For temperature sensitive samples, the MiniMag is incubator and cold-room safe for use from +4°C to +45°C.

Specifications 

 
Benchmark™ Overhead Stirrers

• LCD control panel
• Includes complete stand assembly
• Compact and quiet
• Digital accuracy and convenience

Benchmark’s Overhead Stirrers feature high torque and advanced digital microprocessor control for smooth mixing of low and medium-viscosity samples. Speed and run-time are accurately set and monitored on the LCD screen. Both the 20 L and 40 L capacity models are supplied with a 4-arm stainless steel propeller, additional steel and Teflon accessories are available. 

A feed-through chuck holds accessory shafts firmly in place and is easily tightened and loosened without tools. The overhead stirrers are protected from damage by sensors that shut down operation in the case of high viscosity or obstruction, while a splash cover protects the connection mechanism from potential corrosion. Unlike most mixers, the Benchmark series is also supplied with a support stand and mounting hardware. The stirrer easily and securely attaches to the stand for compatibility with a variety of vessels, up to 24 inches high.

Specifications
 

Benchmark™ Industrial High-Capacity Stirrers

• Stir up to 150-liter volumes
• Chemically resistant white ceramic top surface
• Powerful motor ideal for large vessel applications
• Digital control of both stirring speed and timer 

Benchmark™ Industrial HCS Series of high-capacity stirrers provide reliable performance and safe operation for high throughput lab use. These stirrers feature a durable, chemically resistant white ceramic top plate, which protects the internals of the stirrer from leaks and spills. The powerful motor drive system ensures efficient and thorough mixing in large vessels and viscous samples.

Ideal for large-scale stirring applications, the HCS Series offers 50-liter and 150-liter maximum capacity models, as HCS-50L and HCS-150L respectively. Mixing speed can be viewed on the large digital display, and speed is adjustable from 50 rpm to 1500 rpm (IPS7101-50) or 1200 rpm (IPS7101-150). The built-in timer settings range from 1 second to 9 hours and include a continuous operation setting.

Specifications

Benchmark™ Multi-Position Hotplate Stirrers

The Benchmark™ Multi-Position Stirring Hotplates provide simultaneous heating and stirring of multiple samples. The large top-plates feature a durable, chemically resistant, white-ceramic coating that provides exceptionally uniform temperature control up to 120°C. Both mixing speed and temperature are conveniently controlled on the digital display, which also features a safety LED that warns the user when the top plate is hot and unsafe to touch.

Three models are available, offering 3, 5 or 10 position capacity. Each stirring position is driven by an independent motor, providing efficient mixing of sample sizes up to 1000ml. With increased spacing (100 mm) between stirring positions, the top surface is designed to accept a wide range of vessel types, including beakers, Erlenmeyer flasks and media storage bottles.

• Simultaneous heating and stirring
• White ceramic top surface
• Effective stirring in bottles up to 1 liter
• Digital control of both speed and temperature

Specifications 

Hotplate and Stirrers Accessories 

Octagon Magnetic Stirring Bars

• Octagon magnetic stirring bars with integral pivot rings are the most commonly used shape.
• Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® brand PTFE Coating  Superior Chemical Compatibility
• Interrupted profile provides greater surface area and added turbulence when compared to the smooth surface of cylindrical bars
• Pivot ring aids in reducing friction and chattering (F37110-1218 does not have a pivot ring)
• Autoclavable
• Manufactured in a registered ISO 9001:2015 facility, as verified by SGS certification

Micro (Flea) Magnetic Stirring Bars

• Micro (Flea) magnetic stirring bars are designed for stirring small volumes in vessels such as vials, tubes, and gradient makers. 
• Particularly useful for environmental testing and life science applications in which small sample volumes need to be prepared and evaluated
• Available in a variety of colors and sizes
• Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® brand PTFE Coating  Superior Chemical Compatibility
• Manufactured in a registered ISO 9001:2015 facility, as verified by SGS certification
• Autoclave safe

Polygon Magnetic Spin Bar 

• These stir bars have polygon multifaceted surfaces that add turbulence relative to similar smooth-size cylindrical bars. 
• Center molded pivot ring minimizes the contact area between the bar and the vessel; and reduces friction and chattering
• Marring of plastic containers is diminished
• Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® brand PTFE Coating  Superior Chemical Compatibility
• Manufactured in a registered ISO 9001:2015 facility, as verified by SGS certification
• Autoclave safe

Stir Bar-Octagon with Pivot Rings 

• Convenient assortment packs suit a variety of needs. 
• Choose from octagonal, round, micro or color-coded bars to best suit your needs
• Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® brand PTFE Coating  Superior Chemical Compatibility
• Manufactured in a registered ISO 9001:2015 facility, as verified by SGS certification
• Autoclavable

Crystal Low Profile Magnetic Stirrer

• High level of waterproofing protection.
• Motor-less driven mechanism for quiet and maintenance-free operation.
• Sleek low profile design-Thinner than a tablet!