LED Digital Display High-Temperature Heating Magnetic Stirrer

• L550SM-H7-S LED Magnetic Hotplate Stirrer with 7-inch Glass Ceramic Plate adopts shaded pole motor, supporting max heating temperature up to 550℃ and 1000W high heating power, maximum stirring volume 10L. It features analog scale speed control, LED digital temperature readout, standard PT1000 external temperature sensor, flashing 50℃ residual heat warning and 580℃ overheat cut-off protection. Without timer or RS232 data port, it is specialized for ultra-high-temperature digestion, melting and high-boiling solvent reactions, widely used in chemical, material, mineral and pharmaceutical labs for high-temperature sample pretreatment.
• Original factory core specs: 184×184mm (7 inch) monolithic glass ceramic work plate; shaded pole motor with 15W rated input & 1.5W rated output; single stirring position, max stirring volume 10L water, compatible with stir bars up to 80mm length; speed range 0–1500rpm with mechanical scale dial for speed indication; LED digital tube for temperature display; heating range Room Temp.~550℃ with 5℃ adjustment increment; temperature control accuracy ±10℃, temperature display accuracy ±1℃; standard PT1000 external sensor with ±0.2℃ measuring accuracy; automatic heating cut-off at 580℃ overheat threshold; flashing "HOT" alert if plate temperature exceeds 50℃ after power off; no data connector, no timer function; IP21 dust protection; dual wide voltage 100-120/200-240V 50/60Hz; total unit power 1030W, heating output 1000W; dimension 215×360×112mm, net weight 4.5kg; permissible ambient condition: 5–40℃, ≤80%RH.
• Operating environment: Adapts to standard lab temperature & humidity, ideal for high-temperature melting and digestion workflows inside fume hoods.
• Key advantages: Large 7-inch monolithic chemical-resistant glass ceramic plate; ultra-high heating limit up to 550℃ with 1000W powerful heating output; stepless analog knob speed regulation; real-time LED temperature reading; accurate liquid temperature detection via PT1000 probe; 580℃ overheat safety shutdown; post-shutdown 50℃ residual heat reminder; excellent resistance to acid, alkali and organic solvents; universal dual voltage for global markets; IP21 dust-proof chassis, perfectly matched for harsh workflows like mineral digestion and high-temperature fusion.

• 7-inch integrated glass ceramic work plate provides outstanding resistance to strong acid, alkali and organic solvents, uniform heat transfer, no deformation or cracking under long-term 550℃ heating, easy to wipe and clean.
• Max heating temperature reaches 550℃ with 1000W high-power heating module for fast temperature ramp-up, suitable for ultra-high-temperature workflows including mineral fusion, heavy metal thermal digestion and high-boiling solvent reflux.
• Max stirring volume 10L water, compatible with magnetic stir bars up to 80mm length. Stable shaded pole motor delivers 0–1500rpm stepless analog knob speed regulation with intuitive scale dial reading.
• Separate LED digital tube displays real-time plate temperature with clear readout for instant heating status monitoring, easy for all-level operators.
• Standard high-precision PT1000 external temperature probe immerses directly into reaction liquid to eliminate plate-solution temperature offset, capturing real internal sample temperature with ±0.2℃ accuracy.
• Global overheat protection automatically cuts all heating output at 580℃ threshold to avoid dry heating, instrument burnout and vessel rupture, protecting equipment and samples for long-term use.
• Post-shutdown residual heat safety alert: "HOT" indicator keeps flashing if plate temperature exceeds 50℃ after power cut, preventing accidental operator scald injury.
• Robust shaded pole motor structure with minimal wearing parts supports long-duration continuous high-temperature stirring; solid heavy-duty chassis delivers reliable performance in demanding lab environments.
• IP21 dust-proof housing blocks dust ingress to internal circuits for extended service life; universal dual wide voltage works directly with 110V / 220V global power grids.

• Product positioning: Cost-effective ultra-high-temperature magnetic hotplate stirrer differentiated by max 550℃ heating limit and large 7-inch glass ceramic plate. Target labs for mineral digestion, material fusion, high-boiling solvent synthesis and heavy metal testing, ideal for basic high-temperature pretreatment workflows that do not require timer or PC data logging, prioritizing large plate size, ultra-high heating capacity and chemical resistance.
• 1000W high-power heating matched with monolithic 7-inch glass ceramic plate delivers wide heat transfer area and stable performance up to 550℃, supporting simultaneous high-temperature heating of large crucibles & beakers to improve efficiency of mineral fusion and dry digestion.
• Simple, reliable shaded pole motor with low failure rate, 0–1500rpm wide-range analog speed regulation and 10L max stirring volume for medium-batch sample homogenization; 80mm long stir bar fits large reaction vessels.
• Separate LED digital temperature readout paired with standard PT1000 immersion probe distinguishes plate surface temperature from actual liquid temperature, offsetting large temperature gap between plate and solution under ultra-high heat to improve experimental data reference value.
• Integrated triple-layer safety system: mandatory heating cut-off at 580℃ overheat threshold, flashing residual heat alert at 50℃ post power-off, IP21 dust-proof insulated chassis for secure unattended overnight high-temperature digestion runs.
• Premium electronic functions (timer, RS232 data port) are removed to cut procurement cost, perfect for bulk procurement of university teaching labs, industrial testing stations and small chemical high-temperature pretreatment workshops.
• Universal dual wide voltage design works directly for 110V EU/US and 220V Asian power grids, one unified model reduces distributor stock SKU classification.
• Optional supporting accessories including stands, clamps and extended temperature probes enable fast assembly of complete high-temperature reflux & fusion setups for one-stop mineral & material pretreatment equipment matching.

• Experiments require ultra-high temperature above 500℃ for mineral fusion, heavy metal dry digestion or high-boiling low-volatility solvent reactions:
  Select L550SM-H7-S with stable max 550℃ heating, 1000W high-power heating module and large 7-inch chemical-resistant glass ceramic plate; it is one of the few cost-effective magnetic stirrers supporting 550℃ high limit at this price tier.
• Require large heating surface to hold multiple crucibles and large beakers for parallel high-temperature processing:
  184×184mm monolithic 7-inch glass ceramic plate offers far wider heating area than standard 5-inch models to process more samples simultaneously.
• Only basic stirring & high heating needed, no demand for advanced digital functions like timer or PC data export, tight procurement budget:
  This unit omits timer and RS232 communication modules while retaining core high-temperature stirring and PT1000 temperature measurement, delivering superior cost performance for bulk basic lab orders.
• Work with highly corrosive strong acid, alkali and organic solvents, need heat-resistant chemical inert work plate:
  Monolithic glass ceramic construction resists all common lab reagents, no cracking or peeling under long-term 550℃ heating, simple daily cleaning & maintenance.
• Accurate real liquid temperature reading required for high-temperature assays, cannot rely solely on plate surface readings:
  Standard PT1000 immersion probe per unit directly measures internal sample liquid temperature with ±0.2℃ precision to eliminate high-temperature plate-liquid offset error.
• Long unattended overnight high-temperature digestion runs with concerns over dry heating and scald hazards:
  Equipped with dual safety safeguards: automatic heating cut-off at 580℃ overheat threshold + flashing HOT residual heat alert at 50℃ post shutdown, paired with IP21 dust-proof housing to minimize experimental risks.
• Export to multi-region overseas markets covering both 110V and 220V grids, unified single model to reduce stock variety:
  Universal dual wide voltage 100-120V / 200-240V fits all global power grids, no separate voltage stock variants required for mainstream overseas labs.
• Single batch sample volume ≤10L for regular medium-volume high-temperature homogenization & digestion:
  Max stirring capacity 10L with wide 0–1500rpm speed range and stable shaded pole motor, matching standard sample mixing demands for teaching and industrial testing labs.

• Standard factory package includes L550SM-H7-S 7-inch 550℃ ultra-high-temperature magnetic hotplate stirrer main unit, power cord, external PT1000 temperature sensor and printed English operation manual. 10L high-temperature digestion & fusion experiments can be launched immediately after unboxing without extra basic accessories.
• OEM private branding customization service available for bulk orders with exclusive brand printing and custom outer packaging design, suitable for high-temperature instrument independent online stores and overseas mineral/material science industry exhibition marketing.
• Thick shockproof separate carton with full high-density foam buffer; large glass ceramic plate is individually isolated for anti-impact protection to prevent plate cracking and chassis damage during long sea & air freight transit.
• In-stock items will be shipped within 3–10 working days. OEM customization is available for bulk orders, including brand logo silk printing and customized outer packaging.
• Multiple cross-border logistics solutions (sea freight, air freight, international courier) are offered to match cost-effective transport options based on order volume and requested delivery timeline.

Selling Units

Single item

Package size perbatch

49*35*26cm

Gross weight perbatch

6.4800kg

• Contact customer service to obtain full original factory electronic documents for multi-model high-temperature stirrer comparison, cross-border independent website listing, overseas mineral/material industry exhibition promotion and customer technical consultation for ultra-high-temperature digestion experiments.
• Official exclusive electronic files for this unit include full complete technical specs, 550℃ high-temperature operation safety guidelines, PT1000 probe operation tutorial, glass ceramic plate maintenance manual, English operation manual, dimension drawings and product brochure. All data and function descriptions are extracted from original factory datasheet page 48 & 49 with verifiable authentic content.
• Enterprise promotional materials available: brand brochure, real production workshop photos and factory introduction files.
• Full-series supporting resource library for all stirring equipment, including product documents and marketing materials of all hotplate magnetic stirrers for unified store operation and multi-category synchronous listing & promotion.