Stanland Glassblowing Lakes 15 Plate Silver Vacuum Jacketed Oldershaw Distillation Column

Used Large-Bore Borosilicate Glass Fractional Distillation Column with 35/25 Joints, Silver Vacuum Jacket, and Expansion Bellows

The Stanland Glassblowing Lakes Silver Vacuum Jacketed Oldershaw Distillation Column is a used, large-bore laboratory fractional distillation column designed for higher-capacity chemical separation, solvent purification, and process development workflows. Constructed from borosilicate glass, this Oldershaw column features 15 perforated plates, 2-inch plate diameter, 2-inch inside diameter, 35/25 top and bottom joints, a silver vacuum jacket, a corrugated vacuum jacket, and expansion bellows.

An Oldershaw column is a highly efficient laboratory-scale fractional distillation column used to separate chemical mixtures based on boiling point differences. It uses a series of perforated plates, also called trays, and downcomers to maximize vapor-liquid contact. Each plate acts as an individual theoretical stage, giving the column repeated opportunities to separate vapor and liquid phases more precisely than simple distillation glassware.

This specific Stanland Glassblowing Lakes column stands out from smaller Oldershaw columns because of its larger 2-inch internal diameter, 3.5-inch outside diameter, 35-inch overall length, and 2-inch plate spacing. These larger dimensions make it a strong option for laboratories that need more internal volume, broader vapor pathways, and a larger fractional distillation column format than standard 1-inch ID Oldershaw columns.

For related lab equipment, browse HiTechTrader’s used laboratory equipment, laboratory reactors, laboratory pumps, and analytical instruments.

Large-Bore Oldershaw Column for Higher Capacity Fractionation

This Stanland Glassblowing Lakes Oldershaw distillation column is designed for laboratories that need more capacity and internal flow area than smaller fractional distillation columns. With a 2-inch / 50.8 mm inside diameter and 2-inch / 50.8 mm plate diameter, this column provides a larger vapor-liquid contact area than 1-inch ID Oldershaw columns.

That makes it useful for workflows where the lab needs:

• more internal column volume
• larger vapor flow capacity
• broader liquid contact area
• controlled separation across multiple theoretical stages
• better performance for larger laboratory-scale distillation setups
• specialty chemical purification or process development support

The 15 plate design provides repeated vapor-liquid interaction, while the larger column body helps distinguish this unit from more compact 5 plate and 10 plate Oldershaw columns.

15 Plate Design for Controlled Chemical Separation

Inside the column, vapor rises through perforated plates while liquid flows downward through downcomers. This creates repeated vapor-liquid contact, allowing the mixture to separate according to volatility and boiling point.

A 15 plate Oldershaw column can be useful when a laboratory needs more separation performance than a short 5 plate column but may not require a taller or more restrictive small-bore 20 plate setup.

Common applications include:

• fractional distillation
• solvent purification
• solvent recovery
• boiling point separation
• reaction product purification
• hydrocarbon fractionation
• petroleum testing
• essential oil refinement
• specialty chemical separation
• organic chemistry research
• pharmaceutical process development
• pilot-scale laboratory process work

This column is especially useful for labs looking for a balance of separation efficiency, larger internal diameter, and laboratory-scale processing flexibility.

Silver Vacuum Jacket for Reduced Radiant Heat Transfer

The silver coating on a vacuum-jacketed Oldershaw column is used primarily to reduce heat transfer by radiation. During fractional distillation, heat loss can affect vapor-liquid equilibrium, reflux behavior, and fraction collection consistency.

The silver vacuum jacket helps support:

• reduced radiant heat transfer
• improved thermal isolation
• more stable internal column conditions
• better vapor-liquid equilibrium
• reduced influence from ambient room temperature
• improved repeatability between distillation runs
• better support for temperature-sensitive separations

For laboratories working with solvent purification, petroleum fractions, specialty chemicals, or research-scale process development, improved thermal isolation can help support more consistent separation performance.

Corrugated Vacuum Jacket with Expansion Bellows

This column includes both a corrugated vacuum jacket and expansion bellows. That is especially useful on a longer, larger diameter vacuum jacketed column because glassware can experience stress during heating and cooling cycles.

Expansion bellows help accommodate thermal expansion and contraction, reducing mechanical stress on the glass jacket.

Benefits include:

• reduced glass stress during thermal cycling
• better durability during repeated distillation use
• support for vacuum-jacketed thermal performance
• improved usability in larger glassware assemblies
• added protection for a longer 35-inch column format

For laboratories using specialty distillation glassware repeatedly, this feature can help support longer-term workflow reliability.

35/25 Top and Bottom Joints

This Stanland Glassblowing Lakes Oldershaw column is configured with 35/25 top and bottom joints, allowing it to connect with compatible 35/25 laboratory glassware.

The 35/25 joint configuration may support:

• custom fractional distillation assemblies
• solvent purification systems
• reflux and condensation setups
• vapor transfer workflows
• chemical process glassware systems
• laboratory-scale purification rigs
• research and pilot-scale glassware setups

Buyers should confirm compatibility with their existing boiling flasks, condensers, adapters, receivers, clamps, heating mantles, and vacuum system components before purchase.

Borosilicate Glass Construction for Laboratory Distillation

This Oldershaw column is constructed from borosilicate glass, a standard material for laboratory distillation and chemical process glassware. Borosilicate glass offers strong chemical resistance, thermal stability, and visibility during operation.

Borosilicate glass benefits include:

• compatibility with many laboratory solvents and reagents
• clear visibility of internal vapor-liquid activity
• thermal stability during heating and cooling workflows
• usefulness in research, QA/QC, and teaching environments
• suitability for repeated laboratory distillation work

The transparent glass body allows users to observe vapor movement, liquid return, flooding behavior, reflux patterns, and internal column performance during operation.

Technical Specifications

Why This Stanland Glassblowing Lakes Column Stands Out

This column stands out from many similar Oldershaw listings because it is a larger-bore, higher-volume fractional distillation column. Many Oldershaw columns use a 1-inch internal diameter, but this unit has a 2-inch internal diameter and 2-inch plate diameter, giving it a larger internal flow path and broader vapor-liquid contact area.

This makes it a strong fit for buyers who need:

• a larger Oldershaw column format
• 2-inch internal diameter
• 15 theoretical plate stages
• 2-inch plate spacing
• 35-inch column length
• silver vacuum jacket thermal isolation
• expansion bellows for thermal stress relief
• 35/25 top and bottom joint compatibility
• used equipment value compared with new custom glassware

For labs comparing several Oldershaw columns, this unit is best positioned as a larger-capacity fractional distillation column for more demanding laboratory-scale separation work.

Typical Applications

The Stanland Glassblowing Lakes 15 Plate Silver Vacuum Jacketed Oldershaw Distillation Column is suitable for laboratories that need controlled fractional distillation in a larger-diameter glass column format.

Common applications include:

• solvent purification
• solvent recovery
• fractional distillation of chemical mixtures
• boiling point separation
• reaction product purification
• hydrocarbon fractionation
• petroleum testing
• essential oil refinement
• specialty chemical processing
• pharmaceutical process development
• organic chemistry research
• process optimization
• QA/QC method development
• research and teaching laboratory workflows

This column is especially useful when a standard small-bore Oldershaw column may be too limited for the intended workflow.

Key Benefits

Larger 2-Inch Internal Diameter

Provides more internal column volume and vapor-liquid contact area than smaller 1-inch ID Oldershaw columns.

15 Plate Fractional Distillation Design

Creates repeated vapor-liquid contact stages for improved separation compared with simple distillation.

Silver Vacuum Jacket

Helps reduce radiant heat transfer and supports more stable internal distillation conditions.

Expansion Bellows Included

Helps reduce stress during heating and cooling cycles, especially useful for a longer vacuum-jacketed glass column.

Corrugated Vacuum Jacket

Supports the thermal isolation design of the silvered column.

35/25 Top and Bottom Joints

Provides compatibility with compatible 35/25 laboratory glassware assemblies.

Used Equipment Value

Allows laboratories to source specialty fractional distillation glassware at a lower cost than many new custom glass components.

Related Equipment from HiTechTrader

Laboratories building a complete distillation, purification, or process development setup may also need reactors, condensers, receiving vessels, vacuum systems, pumps, analytical instruments, and safety equipment.

Explore related HiTechTrader categories:

• used laboratory equipment
• laboratory reactors
• Parr reactors
• laboratory pumps
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• containment and safety equipment

This Oldershaw column may be paired with compatible boiling flasks, condensers, receiving adapters, vacuum systems, heating mantles, laboratory pumps, reactors, GC-MS instruments, and other analytical tools depending on the workflow.

Used Stanland Glassblowing Lakes Oldershaw Distillation Column for Sale

HiTechTrader offers this used Stanland Glassblowing Lakes 15 Plate Silver Vacuum Jacketed Oldershaw Distillation Column for laboratories needing a larger-diameter fractional distillation column for chemical separation, solvent purification, or process development.

This column is a strong fit for laboratories working with solvent recovery, chemical mixture separation, boiling point fractionation, hydrocarbon analysis, petroleum testing, essential oil refinement, pharmaceutical development, and specialty chemical research.

Contact HiTechTrader to request pricing, verify plate count, confirm joint compatibility, or source additional laboratory glassware and chemical processing equipment for your setup.

FAQ Section

What is an Oldershaw distillation column?

An Oldershaw distillation column is a laboratory fractional distillation column that uses perforated plates and downcomers to create repeated vapor-liquid contact. Each plate acts as a theoretical separation stage to help separate liquid mixtures by boiling point.

What makes this Stanland Glassblowing Lakes column different?

This column has a larger 2-inch inside diameter, 3.5-inch outside diameter, 35-inch length, and 15 plate design, making it larger than many compact Oldershaw columns.

How many plates does this column have?

The supplied specification lists this column as having 15 plates. The product name mentions 20 plate, so the plate count should be visually confirmed before listing if needed.

Why is the vacuum jacket silvered?

The silver coating helps reduce heat transfer by radiation. This supports better thermal isolation and more stable internal column conditions during distillation.

What are the joint sizes?

This column has a 35/25 top joint and a 35/25 bottom joint.

Does this column have expansion bellows?

Yes. This column includes expansion bellows and a corrugated vacuum jacket.

What is this column used for?

This column is used for fractional distillation, solvent purification, solvent recovery, chemical separation, boiling point fractionation, hydrocarbon analysis, petroleum testing, and laboratory-scale process development.

Is this column new or used?

This Stanland Glassblowing Lakes Oldershaw distillation column is listed in used condition. Buyers should confirm glass condition, joint integrity, silvering, vacuum jacket condition, expansion bellows condition, and compatibility before use.