Heating mantle magnetic stirrer

• L280SM-H-B (Beaker model) / L280SM-H-F (Round bottom flask model) interchangeable heating mantle magnetic stirrer, widely adopted in scientific research, mining & industry, food processing, biochemistry, pharmaceutical and university teaching labs for constant-temperature liquid incubation, reflux synthesis and wet digestion experiments.
• Core modular design: Main unit supports 8 interchangeable aluminium silicate fiber heating sleeves. B series fits 100/250/500/1000mL flat bottom beakers; F series fits 100/250/500/1000mL round bottom flasks, all sleeves are freely replaceable for multi-task operation on one device.
• Common core specs: Spark-free explosion-proof brushless DC motor, 1.8W output; speed range 200–1500rpm, speed accuracy ±20rpm, dual independent LCD screens for speed & temperature readout; heating range 25–280℃, temperature resolution 0.1℃; control accuracy ±1℃ below 100℃, ±1% above 100℃; external PT1000 temperature sensor with ±0.2℃ accuracy; auto overheat protection at 420℃, flashing "HOT" warning when plate above 50℃; IP21 dust protection; two independent safety circuits to stop heating & cut power upon fault.
• Differentiated power rating:
  • 100-120V version: Heating power 240/270/440/500W; total power 260/290/460/520W
  • 200-240V version: Heating power 120/240/310/420W; total power 140/260/330/440W
• Power supply: 100-120V 60Hz / 200-240V 50Hz; dimension 295×160×160mm, net weight 3.7Kg; permissible ambient condition: 5–40℃, max 80%RH.
• Key advantages: Interchangeable multi-volume heating sleeves, dual-function single unit; uniform & corrosion-resistant aluminium silicate fiber heating mantle; reinforced magnetic field for powerful stirring; temperature self-calibration function; fireproof metal housing; maintenance-free sparkless explosion-proof motor; dual independent safety circuits; post-power-off high-temperature warning; high-precision PID constant temperature control, compatible with various reaction vessels.

• Modular interchangeable heating mantle stirrer covers mainstream 100–1000mL beakers and round flasks with one single main unit, eliminating the need for multiple dedicated heating devices to cut lab procurement budget and storage footprint.
• Full-surround aluminium silicate fiber mantle delivers larger contact heating area & lower heat loss compared to standard hotplates, uniform temperature performance up to 280℃ ideal for reflux, distillation and long-duration constant-temperature synthesis.
• Built-in temperature self-calibration program allows manual offset correction to retain 0.1℃ high readout precision over years of operation, meeting strict temperature data standards for pharmacopoeia testing, third-party inspection and academic research.
• Reinforced permanent magnetic field prevents slipping & magnetic drop for high-viscosity fluids and maximum 1000mL vessels, consistent stirring torque across full 200–1500rpm speed range.
• Fireproof metal chassis isolates internal hot heating components, paired with spark-free explosion-proof brushless DC motor, fully safe for low-boiling flammable solvents including methanol, ethanol and acetone to eliminate fire & explosion hazards.
• Redundant dual independent safety circuits prevent uncontrolled operation if one circuit malfunctions; triggers heating stop, power cut and error alert upon overheating, short circuit or sensor damage, qualified for unattended overnight reflux & digestion experiments.
• Universal dual wide voltage auto-adaptation for 100–120V / 200–240V grids, one model fits all global overseas markets without separate stock SKUs for distributors.
• Flexible dual-mode configuration: Assemble as an all-in-one heating stirrer, or separate the mantle and stirring base for independent operation, suitable for narrow fume hood zones and multi-unit inline lab layouts.

• Labs use both beakers and round flasks ranging from 100–1000mL, wish to avoid purchasing multiple fixed-size heating stirrers:
  Select L280SM-H-B/F interchangeable mantle model with 8 freely swappable sleeves; one main unit fits all mainstream small/medium/large reaction vessels to lower procurement cost and save bench space.
• Regular reflux, distillation and long-term constant-temperature synthesis require full-surround uniform heating to avoid local overheating & bumping:
  Full-wrap aluminium silicate fiber mantle delivers far larger heating contact area than flat hotplates with even heat distribution, stable up to 280℃, perfectly suited for organic reflux and solvent distillation workflows.
• Frequent experiments with low-boiling flammable solvents such as ethanol & acetone, safety concerns over electric sparks from motors:
  Spark-free explosion-proof brushless DC motor paired with fireproof metal chassis delivers dual-layer safety protection for all flammable reagent systems.
• High demand for long-term stable temperature precision, with measurable reading drift after prolonged instrument use:
  Built-in temperature self-calibration function manually corrects measurement offset; external PT1000 probe captures actual liquid sample temperature for superior test data repeatability.
• Unattended overnight reflux & digestion assays demand robust protection against overheating and short-circuit faults:
  Dual redundant independent safety monitoring circuits activate auto power cut at 420℃ overheat threshold, secondary power shutdown for short circuit and audible error alert, multi-layer safeguards eliminate runaway equipment risks.
• Bulk export to multi-region overseas markets covering both 110V European/American and 220V Asian grids for simplified unified inventory:
  Universal dual wide voltage 100-120V/200-240V works with all global power grids using one single model, no separate voltage stock versions required.
• Narrow fume hood space or special lab layouts requiring split equipment configuration:
  Supports separate independent operation of heating mantle and stirring base, compact slim chassis fits tight fume hood zones and inline multi-instrument arrangements.

• Standard factory package includes L280SM-H-B/F stirring main unit, selected size aluminium silicate fiber heating mantle, external PT1000 temperature sensor, power cord and printed English operation manual. Constant-temperature stirring & reflux experiments can be performed immediately after unboxing without extra basic accessories.
• OEM private branding customization service is available for bulk orders to create exclusive brand visuals for lab instrument independent stores and overseas pharmaceutical, chemical & scientific research exhibition marketing channels.
• Separate thick shockproof cartons for main unit and heating mantle, fully lined with high-density foam buffer to withstand long-distance sea & air freight vibration and compression, preventing fiber mantle deformation and motor/heating component impact damage.
• In-stock orders ship within 3–10 working days. Goods will be packed and dispatched uniformly after confirmation of model and matching mantle size to shorten lead time for overseas 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.

Selling Units

Single item

Package size perbatch

54*39*15cm

Gross weight perbatch

5.200kg

• Contact customer service to obtain complete original electronic documents for product comparison, independent website listing, overseas exhibition promotion and customer technical consultation.
• Official electronic files for this product include full main unit technical specs, 8-size heating mantle list, English operation manual, equipment safety guidelines, dimension drawings and product brochures. All documents comply with official factory standards with verifiable data.
• Enterprise promotional materials are available, including company brand brochure, real workshop photos and factory introduction files.
• We provide full-series supporting resources for all stirring equipment, single/multi-position hotplate stirrers and heating mantle accessories, supporting unified store operation and multi-category product marketing.

• If you need to purchase L280SM-H-B / L280SM-H-F interchangeable heating mantle LCD magnetic stirrer in bulk for organic synthesis, reflux distillation, wet digestion, pharmaceutical process development, 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, matching mantle size verification, technical parameter inspection, 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, required heating mantle sizes, 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.