The Wiggens Multi‑Position Heating Mantle is a benchtop workhorse for laboratories that perform repetitive extraction, reflux, and distillation procedures. Available in six‑place (100‑300ml flasks) and three‑place (500‑1000ml flasks) configurations, with low‑temperature (450°C) and high‑temperature (650°C) options, this mantle combines robust construction with independent temperature control at each position. The following specifications are based on factory testing under standard conditions.

Technical Specifications

• Model numbers: RJ358 (3‑place, 500ml, high‑temp), RJ638 (6‑place, 250/300ml, high‑temp), RX30024 (6‑place, low‑temp)

• Order numbers: W3031358, W3031638, RX30024

• Configurations: Six‑place for 100‑300 ml flasks; Three‑place for 500‑1,000 ml flasks

• Temperature range: Low‑temperature version up to 450°C; High‑temperature version up to 650°C

• Display: LED display showing set temperature and actual temperature simultaneously

• Display resolution: 0.1°C

• Temperature control: Independent control per position – each position can be set to the same or different temperature

• Housing: Clear anodized aluminum cabinet with blue PTFE resin coated top for chemical resistance

• Heating element system: Revolutionary replaceable element containers – provide spill containment and can be replaced in minutes

• Heating element rating per position: 140W – 300W depending on model

• Glassware clamps: Six spring‑type glassware clamps (furnished with six‑place units), holding glassware from 1 5/8″ – 2″ in diameter

• Support rods: Horizontal support rods for clamp attachment

• Control options: Percentage timer or proportional voltage

• Dimensions (6‑place, W×D×H): 743 × 241 × 133 mm

• Power controls: 6‑place with two quick attach open face brackets for 1/2″ diameter rod

• Applications: Kjeldahl digestion, Soxhlet extraction, reflux, distillation, and other repetitive heating procedures

• Industries served: Food, textile fibre, water and wastewater, petroleum, and many others

Standard Accessories Included:

• Multi‑position heating mantle main unit

• Spring‑type glassware clamps (six for six‑place units)

• Horizontal support rods for clamp attachment

• Power cord

• User manual with operating instructions

• Factory calibration certificate

Items Excluded:

• Glass flasks or reaction vessels (order separately)

• Magnetic stirring bars (not applicable for this model)

• Temperature probes or sensors (not applicable for this model)

• Stand or support frame (order separately if required)

Pre‑installation Requirements:

• Stable, level benchtop capable of supporting the unit weight

• Ambient temperature between 5‑40°C

• AC power outlet matching the specified voltage

• Adequate clearance for ventilation and cable connections

• Fume hood or adequate ventilation if working with volatile solvents

Key benefits for repetitive heating procedures

The features above translate into measurable improvements for laboratories that perform extraction, reflux, and distillation workflows. Each point below connects a specification to a practical outcome.

Independent temperature control at each position – Each heating position can be set to the same or different temperature. A researcher running six parallel extractions adjusts each position to match the specific solvent or sample requirement. A quality control laboratory processing different sample matrices sets each position to the optimal temperature for that matrix. Flexibility is built into every run. Explore our full range of laboratory heating solutions at Optimum Solution for more options.

Revolutionary replaceable element containers – The heating element container system makes replacing burned‑out elements a simple task. A busy laboratory operating the mantle daily for years replaces a failed element in minutes instead of sending the unit for repair. The element containers also act as spill containment chambers, capturing chemicals from spillage or boil‑over. Downtime is minimised, and safety is enhanced.

Lower profile for space‑saving convenience – The compact design occupies minimal bench space. A teaching laboratory with limited benchtop area runs multiple experiments on a single unit. A quality control laboratory positions the mantle behind other instruments without obstructing workflow. Bench space is conserved.

Anodized aluminum cabinet with PTFE‑coated top – The clear anodized aluminium cabinet resists corrosion, and the blue PTFE resin coated top provides chemical resistance. A laboratory handling aggressive solvents and acidic reagents operates the mantle without damage to the housing. The durable construction extends the service life of the instrument. For detailed technical specifications, visit the Wiggens manufacturer product page.

LED display with simultaneous set and actual temperature – The LED display shows the set temperature and actual temperature at the same time. A technician monitors the heating progress at a glance. The 0.1°C display resolution provides the precision needed for method development and quality control.

Ideal for Kjeldahl, Soxhlet, and other extraction procedures – The mantle is purpose‑built for repetitive extracting, refluxing, and distilling procedures. A food testing laboratory running multiple Kjeldahl digestions per day completes the workload efficiently. A petrochemical laboratory performing Soxhlet extractions achieves consistent results across all positions.

Common frustrations with multi‑position heating – and how this instrument solves them

Pain point: Replacing a burned‑out heating element requires sending the unit for repair.
Traditional heating mantles have fixed elements that are difficult or impossible to replace in‑house. The Wiggens multi‑position heating mantle (a rugged benchtop unit with a revolutionary replaceable element container system) allows the user to swap a failed element in minutes. The element containers act as spill containment chambers, capturing chemicals from spillage or boil‑over. A laboratory operating the mantle daily for years replaces a failed element without sending the unit for repair or waiting for a service technician.

Pain point: Inconsistent heating between positions compromises reproducibility.
Without independent temperature control, some positions run hotter than others, affecting extraction efficiency and digestion completeness. The same Wiggens multi‑position heating mantle (a versatile instrument with independent temperature control per position) allows each position to be set to the same or different temperature. A researcher running six parallel extractions adjusts each position to match the specific solvent or sample requirement. Each position delivers consistent, reproducible heating, and batch‑to‑batch variability is reduced.

Pain point: Chemical spills damage the housing and create safety hazards.
Boil‑overs and spills during extraction or digestion procedures can corrode the housing and create fire risks. The Wiggens multi‑position heating mantle (a chemically resistant unit with a PTFE‑coated top and spill‑containing element containers) features a blue PTFE resin coated top that resists chemical attack. The element containers act as spill containment chambers, capturing chemicals from spillage or boil‑over. The clear anodized aluminium cabinet resists corrosion. Spills are contained, and the housing remains intact.

Pain point: Bulky units dominate bench space, limiting laboratory workflow.
Large heating mantles occupy most of the benchtop, leaving no room for other equipment. The Wiggens multi‑position heating mantle (a space‑saving instrument with a lower profile design) occupies minimal bench space. The 743 × 241 × 133 mm footprint (six‑place) fits on crowded benchtops. A teaching laboratory with limited space runs multiple experiments on a single unit. A quality control laboratory positions the mantle behind other instruments without obstructing workflow.

Pain point: No way to monitor set temperature versus actual temperature.
Without a clear display, operators cannot confirm that the setpoint has been reached or maintained. The Wiggens multi‑position heating mantle (an instrument with a simultaneous LED display of set and actual temperature) shows both values at the same time. The 0.1°C display resolution provides the precision needed for method development and quality control. A technician monitors the heating progress at a glance, and confidence in the results increases.

Which laboratories choose the Wiggens Multi‑Position Heating Mantle

Food and beverage testing laboratories – Perform Kjeldahl digestions for protein determination, fat extraction, and moisture analysis. The six‑place configuration processes multiple samples simultaneously. The 450°C temperature range supports digestion of organic matrices.

Textile fibre and quality control laboratories – Conduct fibre analysis, dye extraction, and polymer testing. The chemical‑resistant PTFE‑coated top withstands aggressive solvents and reagents. The replaceable element containers minimise downtime during high‑throughput operations.

Water and wastewater testing laboratories – Perform COD digestions, solids analysis, and extraction of organic pollutants. The independent temperature control per position accommodates different sample types and matrices. The spill‑containing element containers capture boil‑overs and prevent contamination.

Petroleum and petrochemical laboratories – Conduct distillation, reflux, and extraction of hydrocarbon samples. The high‑temperature (650°C) version supports demanding applications. The robust anodized aluminium housing withstands the rigours of a petroleum laboratory environment.

Academic and teaching laboratories – Demonstrate extraction, digestion, and distillation principles to undergraduate and graduate students. The six positions allow each student or pair to run an individual experiment on a single instrument. The compact footprint fits on standard teaching benches.

Pharmaceutical and chemical research laboratories – Perform synthesis, reflux, and extraction of active pharmaceutical ingredients and chemical intermediates. The independent temperature control per position enables parallel optimisation of reaction conditions.

Physical configuration and daily operation

Installation – Place the unit on a stable, level benchtop capable of supporting the weight. The 743 × 241 × 133 mm footprint (six‑place) requires a bench depth of at least 300 mm. Connect to the appropriate power supply as specified for the model. Ensure adequate clearance for ventilation.

Setting temperature – The LED display shows the set temperature and actual temperature simultaneously. Use the control panel to set the desired temperature for each position independently. The display resolution is 0.1°C.

Heating operation – Place the glass flask in the heating mantle. Ensure good contact between the flask and the heating surface for efficient heat transfer. The heating element heats the mantle, which transfers heat to the flask by conduction. The control system maintains the set temperature.

Clamping glassware – For six‑place units, attach the spring‑type glassware clamps to the horizontal support rods. The clamps hold glassware from 1 5/8″ – 2″ in diameter. Adjust the clamps to secure the flasks firmly.

Control options – Two control choices are available: percentage timer or proportional voltage. The percentage‑timer version pulses full‑line voltage to each heating position according to the dial setting. The proportional‑voltage version supplies a constant, steady‑state voltage to each position.

Replacing heating elements – The revolutionary heating element container system makes replacing burned‑out elements a simple task. The element containers provide spill containment and can be replaced in a matter of minutes. No special tools are required.

Shutdown – After completing the run, reduce the setpoint to room temperature. Allow the unit to cool before cleaning. The continuous working mode supports extended operation.

Cleaning – Wipe the anodized aluminium cabinet and PTFE‑coated top with a damp cloth. Do not immerse the unit in water or use abrasive cleaners. The heating surface should be cleaned with a soft brush or cloth after cooling.

Ordering information

The Wiggens Multi‑Position Heating Mantle is available in several configurations:

• Three‑place, high‑temperature (500ml flasks): Model RJ358, Order No. W3031358, 300W per position

• Six‑place, high‑temperature (250/300ml flasks): Model RJ638, Order No. W3031638, 210W per position

• Six‑place, low‑temperature: Model RX30024, Order No. as specified

The customer should specify the following when ordering:

1. Configuration (three‑place or six‑place)

2. Temperature version (low‑temperature 450°C or high‑temperature 650°C)

3. Flask size range (100‑300ml or 500‑1000ml)

4. Any additional accessories required

Optional accessories available:

• Replacement heating element containers (specify model)

• Additional spring‑type glassware clamps

• Horizontal support rods

• Replacement PTFE‑coated top plates

Warranty and support

We provide a 1‑year manufacturer‘s warranty covering parts and labour. Technical support, installation assistance, and operational training are also available. Replacement parts and consumables are available throughout the product‘s service life.

Call to action

Request a Quotation or Technical Datasheet: Contact us for more information, customised configurations, and solutions tailored to your specific requirements. Visit our website at Optimum Solution to explore our full range of laboratory instruments or view the Wiggens Multi-Position Heating Mantle on the manufacturer‘s site for additional technical resources and application notes.