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Home > All Collections > Homogenizer Series > 4/6 Channel LCD Digital Hotplate Magnetic Stirrer

Multi-channel LCD digital heating magnetic stirrer

Name: Multi-channel LCD digital heating magnetic stirrer
Brand: labcarta Technology Co., Ltd.
SKU: L280SM-H-4S/L280SM-H-6S
Availability: InStock

No.L280SM-H-4S/L280SM-H-6S

The 4/6 channel heated magnetic stirrer is a device designed forparallel experiments and multi-parameter optimization, suitable forexperiments such as Kjeldahl nitrogen determination, Soxhletextraction and parallel synthesis. It is able to process 4 or 6 testssimultaneously and has the characteristics of stability, reproducibility,high precision and easy operation. These stirrers are widely used infood, pharmaceutical, biotechnology, food manufacturing and other

$1030.50

model:

L280SM-H-4S

L280SM-H-6S

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Description
Key Features
Parameter
Product Details
How to Choose
Packaging & delivery
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FAQ
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L280SM-H-4S (4-channel) / L280SM-H-6S (6-channel) LCD Digital High-Temp Magnetic Hotplate Stirrer with independent control per channel, developed for parallel assays and multi-parameter process optimization. Suitable for Kjeldahl nitrogen determination, Soxhlet extraction, parallel synthesis and other workflows, processing 4 or 6 test samples simultaneously.
Widely adopted in food, pharmaceutical, biotechnology and fine chemical labs, featuring stable performance, excellent data reproducibility, high stirring & temperature control precision and user-friendly operation.
Common core specs: Φ134mm round work plate with aluminum substrate & ceramic coating; maintenance-free brushless DC motor; max stirring volume 3L per channel, compatible with 40mm magnetic stir bars; speed range 200–1500rpm, speed accuracy ±20rpm; heating range 25–280℃; dual LCD screens for real-time speed & temperature readout; temperature resolution 0.1℃; external PT1000 temperature sensor (accuracy ±0.2℃); dual overheating protection at 420℃; IP21 dust protection.
Model difference parameters
- L280SM-H-4S: 4 independent channels; motor rating output 10W×2; heating power 1200W×2; total power 1210W×2; voltage 100-120V 60Hz / 200-240V 50Hz; dimension 701×265×127mm; weight 8.7Kg
- L280SM-H-6S: 6 independent channels; motor rating output 15W×2; heating power 1800W×2; total power 1815W×2; voltage 200-240V 50Hz; dimension 564×523×127mm; weight 12.7Kg
Operating environment: permissible ambient temperature 5–40℃, relative humidity ≤80%RH.
Key advantages: Independent start/stop, temperature & speed control for each of 4/6 channels; fast heat transfer & heavy corrosion resistant ceramic aluminum plate; fast heating with precise PID temperature regulation; spark-free long-life maintenance-free brushless DC motor; compatible with various heating blocks and reaction vessels; integrated all-in-one design to save lab bench space; flashing "HOT" warning on LCD if plate over 50℃ after power off; two independent safety circuits to monitor overheat & short circuit; qualified for unattended long-term experiments.

Multi-channel independent control system: Each of the 4/6 channels features separate start/stop, speed setting, temperature setting and dedicated digital display. Parallel experiments do not interfere with each other for flexible multi-variable control.
Aluminum work plate covered with ceramic coating: Fast thermal conductivity, strong resistance to strong acid, alkali and organic solvents, scratch & wear resistant, easy to wipe clean after reagent spills, no discoloration or aging under long high-temperature operation.
High-power closed-loop PID temperature control: Rapid heating with outstanding precision; accuracy ±1℃ below 100℃, ±1% above 100℃, stable linear temperature to minimize temperature deviation between parallel samples.
Spark-free brushless DC motor: Zero carbon brush abrasion for maintenance-free operation; no electric sparks, safe for experiments with flammable organic solvents and extended service life.
Wide compatibility: Works with all kinds of metal heating blocks, round-bottom flasks, Erlenmeyer flasks, beakers and other reaction vessels for synthesis, extraction and digestion workflows.
Compact integrated all-in-one chassis: One unit contains 4 or 6 stirring & heating stations, replacing multiple single-position stirrers to drastically reduce bench occupation.
High-temperature warning function: After power cut-off, the LCD screen flashes "HOT" continuously if plate temperature exceeds 50℃ to prevent operator scalding injury.
Dual independent safety monitoring circuits: Real-time equipment status tracking; automatically stops heating and triggers buzzer alarm for overheating or sensor failure; full power cut upon short circuit to fully protect operator safety.
Suitable for unattended experiments: Complete multi-layer safety protection enables stable long-duration continuous operation without constant human supervision, ideal for overnight digestion and batch processing.

Specifications	L280SM-H-4S	L280SM-H-6S
Work plate dimension	Φ134mm	Φ134mm
Work plate material	Aluminum with ceramic coating	Aluminum with ceramic coating
Motor type	Brushless DC motor	Brushless DC motor
Motor rating output	10Wx2	15Wx2
Heating power	1200Wx2	1800Wx2
Total power	1210WX2	1815WX2
Voltage, Frequency	100-120V,60Hz;200-240V,50Hz	200-240V,50Hz
Stirring positions	4	6
Max. stirring quantity (H₂O)	3Lx4	3Lx6
Max. stirring quantity(H₂O) per channel	3L	3L
Max. magnetic bar [length]	40mm	40mm
Speed range	200-1500rpm	200-1500rpm
Speed control accuracy [rpm]	±20	±20
Speed display	LCD	LCD
Temperature display	LCD	LCD
Heating temperature range	25-280°C	25-280°C
Overheating protection	420°C	420°C
Temperature display resolution	0.1°C	0.1°C
Temperature control accuracy	±1°C(<100°C)±1%(>100°C)	±1°C(<100°C)±1%(>100°C)
External temperature sensor	PT1000(accuracy±0.2°C)	PT1000(accuracy±0.2°C)
IP protection class	IP21	IP21
Dimensions(W×D×H)	701×265×127mm	564×523×127 mm
Weight	8.7Kg	12.7Kg
Permissible ambient temperature and humidity	5~40°C, 80% RH	5~40°C, 80% RH

Positioning: High-throughput parallel high-temperature magnetic hotplate stirrer with two variants (4-channel / 6-channel), targeted at food testing, pharmaceutical process R&D, biological fermentation, chemical material and university research labs for batch parallel synthesis, Soxhlet extraction, Kjeldahl nitrogen test and sample digestion.
Core benefit of independent channels: Each stirring & heating station adopts separate drive system, speed and temperature do not interfere with each other. Users can set totally different process parameters for contrast assays to greatly boost efficiency of method development and parameter screening.
Ceramic aluminum plate balances heat transfer and anti-corrosion performance: Ceramic top isolates acid & alkali erosion while aluminum base delivers fast heating, stable up to 280℃ for organic synthesis and strong-acid digestion workflows.
Precise PID closed-loop temperature control: Real-time temperature feedback correction, matched with external PT1000 probe to immerse directly into sample liquid and read actual fluid temperature, eliminating temperature deviation between plate and solution for superior repeatable data.
Spark-free brushless explosion-safe motor: No electric spark output for reactions with organic solvents and low-boiling flammable reagents; zero carbon brush wear allows multi-day continuous digestion and overnight experiments without consumable replacement to cut maintenance cost.
Multi-layer comprehensive safety protection
- Flashing "HOT" warning on LCD after power off to prevent scald injury;
- Dual heating cut-off at 420℃ over-temperature threshold;
- Two independent safety monitoring circuits with buzzer alarm upon fault;
- Full power cut protection for short circuit;
  Complete safety system supports unattended long-term experiments and avoids lab high-temperature hazards.
Chassis layout difference
- L280SM-H-4S: Elongated horizontal chassis fits narrow fume hood workstations; dual wide voltage compatible with 110V & 220V global markets;
- L280SM-H-6S: Square wide platform with 6 stations for massive batch processing; high-power heating module handles high-viscosity heavy-load digestion; only for 220V regions.
Cost performance for bulk orders: One single unit replaces 4 or 6 separate single-position stirrers to lower procurement cost and save bench space, ideal for bulk purchase by third-party testing institutes, university teaching labs and enterprise R&D departments.

Labs require multi-group parallel control and variable exploration experiments without occupying excessive bench space with multiple single-position devices:

Choose L280SM-H-4S/6S multi-channel independent control stirrer. All 4/6 stations support separate speed and temperature adjustment. One single unit completes parallel experiments with different parameters, saving substantial bench space and equipment cost.

2. Experiments require high-temperature workflows beyond ordinary stirrer limits, needing stable heating up to 280℃ for digestion, synthesis and extraction:

Stable maximum temperature of 280℃ with high-precision PID control and external PT1000 probe ensures stable heating performance, ideal for strong acid-base digestion and high-temperature organic synthesis.

3. Frequent use of organic solvents and low-boiling flammable reagents with safety concerns over electric sparks:

Spark-free brushless DC motor design eliminates carbon brush friction and electric sparks, safe for flammable and explosive systems and supports long-term continuous operation.

4. Unattended overnight experiments demand maximum safety protection against overheating, short circuit and dry burning:

Equipped with 420℃ dual overheat protection, dual safety monitoring circuits, power-off protection and post-run HOT warning system. Multi-layer safety design fully supports unattended all-night experiments.

5. Global export shipments require universal voltage compatibility or high-capacity 6-station configuration:

L280SM-H-4S supports dual 110V/220V wide voltage for global markets; L280SM-H-6S high-power 6-station model delivers high-throughput sample processing for professional 220V laboratory environments.

6. Bulk procurement for university teaching, third-party testing and enterprise R&D prioritizing high precision, low maintenance and excellent data repeatability:

Maintenance-free brushless motor requires zero consumable replacement; corrosion-resistant ceramic plate is durable and easy to clean; independent channel design ensures non-interfering parallel data, perfect for standardized testing and scientific research.

Standard factory package includes L280SM-H-4S / L280SM-H-6S multi-channel high-temperature magnetic hotplate stirrer main unit, power cord, external PT1000 temperature sensor and printed English operation manual. Multi-channel parallel high-temperature stirring & heating experiments can be carried out right after unboxing and power-on without extra basic accessories.
OEM private branding customization service is available for bulk orders to create exclusive brand visuals for online lab instrument stores and overseas pharmaceutical, chemical, food & environmental research exhibition promotion.
Thick shockproof separate carton filled with high-density foam buffer withstands long-distance jolt and extrusion during sea & air freight, greatly reducing risks of shell dent and internal motor/heating component damage in cross-border shipment.
In-stock orders ship within 3–10 working days. Goods will be packed and dispatched uniformly after parameter confirmation to shorten lead time for overseas R&D & teaching labs and instrument distributors.
Multiple cross-border logistics options including sea freight, air freight and international courier are offered to match cost-effective transport solutions based on order volume and requested arrival time.

L280SM-H-4S

Selling Units	Single item	Package size perbatch	813925cm
Gross weight perbatch	10.800kg

L280SM-H-6S

Selling Units	Single item	Package size perbatch	646023cm
Gross weight perbatch	16.200kg

Contact customer service to obtain complete original electronic documents for product selection, online store listing, exhibition promotion and customer consultation.
Official electronic files for this product include full technical parameters, English operation manual, safety instructions, equipment dimension drawings and product brochures. All documents comply with official factory standards with verifiable data.
Enterprise promotional materials are available, including company brochure, real workshop photos and factory introduction files.
We provide full-series product resources of stirring equipment, hotplates and other laboratory instruments, supporting unified store operation and multi-product marketing promotion.

Q: What is the core difference between L280SM-H-4S and L280SM-H-6S?
A: L280SM-H-4S has 4 independent channels with elongated chassis and dual wide voltage (110V/220V compatible). L280SM-H-6S has 6 independent channels with square heavy-duty platform, only supports 200-240V input, higher heating & motor power to process 6 batches at once.
Q: Can speed and temperature be set separately per channel?
A: All channels are fully independent; start/stop, stirring speed and heating temperature can be adjusted separately without mutual interference.
Q: Max heating temperature and temperature control accuracy?
A: Stable max heating temperature 280℃; control accuracy ±1℃ below 100℃, ±1% above 100℃. The external PT1000 probe accurately measures real liquid sample temperature.
Q: Is the work plate acid & alkali resistant, which reagents are compatible?
A: Aluminum substrate with ceramic coating resists most common strong acid, alkali and organic solvents, suitable for organic synthesis and digestion assays.
Q: Does the motor require carbon brush replacement, will it generate electric sparks?
A: Maintenance-free brushless DC motor with no consumable carbon brushes; spark-free operation safe for flammable organic solvent systems.
Q: Is there high-temperature warning after power off?
A: The LCD screen continuously flashes "HOT" when plate temperature exceeds 50℃ to avoid operator scald injury.
Q: Are there safety protections for overheating and short circuit?
A: Dual independent safety circuits cut heating output and trigger buzzer alarm at 420℃ overheat threshold; full power cut upon short circuit. Multi-layer safety design enables unattended long-term experiments.
Q: Max stirring volume per channel and compatible stir bar length?
A: Max 3L aqueous volume per channel, compatible with magnetic stir bars up to 40mm length.
Q: Permissible ambient operating temperature and humidity?
A: Ambient temperature 5–40℃, relative humidity ≤80%RH.
Q: OEM private labeling available for bulk orders, lead time for full quotation?
A: OEM customization service available for bulk purchases. Complete quotation sheet will be sent within 24 hours after submitting model and order quantity.
Q: What original electronic documents can be obtained?
A: Available resources include product technical specs, English operation manual, safety instructions, dimension drawings, product brochures, company brochure, workshop photos and full-series lab instrument supporting documents.

If you need to purchase L280SM-H-4S / L280SM-H-6S 4/6-channel independent control high-temperature LCD magnetic hotplate stirrer in bulk for chemical synthesis, pharmaceutical process development, biological screening, food & environmental testing, university research & teaching labs or laboratory instrument distribution, you may inquire for official detailed quotations with zero hidden fees. Larger order volumes enjoy more favorable unit prices, ideal for centralized procurement of overseas scientific research & teaching institutions and large stock preparation by distributors.
OEM private branding customization is supported for bulk orders. We assign dedicated one-on-one account managers to assist full-cycle coordination including price calculation, technical parameter verification, factory quality control, lead time scheduling and complete branding customization negotiation.
You can reach us via email, WhatsApp or website message. Please leave notes of full product model, order quantity and supporting experimental demands. A full formal quotation sheet will be sent to you within 24 hours, covering unit price, tiered volume discount, production lead time and full logistics solution to resolve all your procurement questions in one stop.

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Multi-channel LCD digital heating magnetic stirrer

Description

Key Features

Parameter

Product Details

How to Choose

Packaging & delivery

Download

FAQ

Get a Quote

Research Laboratories

Universities & Education

Pharmaceutical & Chemical

Food, Environmental & Industrial Testing