Laboratory Glassware
Benchtop Lab Reactor
Goel Glass Inc. designs and fabricates precision Benchtop Laboratory Glass Reactors engineered for process development, organic chemical synthesis, kinetic studies, crystallization, and small-batch production. Manufactured from premium Borosilicate Glass in strict compliance with DIN ISO 3585 and ASTM E438 Type I Class A, our benchtop reactors provide full process visibility, high chemical resistance, and minimal dead space.
Available Wall Configurations
Single-Walled Reactors
Designed for ambient reactions, photochemistry, or operations heated via external heating mantles or water/oil baths.
Double-Walled (Jacketed)
Fitted with a sealed glass jacket for circulating heating or cooling thermal fluids from -50°C to +180°C (ΔT up to 110°C).
Triple-Walled (Insulated)
Features an outer vacuum insulation jacket preventing frosting during sub-zero cooling and protecting operators from hot surfaces.
Standard Technical Specifications:
- Available Volumes: 0.5 L, 1.0 L, 2.0 L, 3.0 L, and 5.0 L working volume.
- Vessel Types: Single Wall, Jacketed (Double Wall), and Vacuum-Insulated Jacketed (Triple Wall).
- Operating Pressure: Full vacuum down to 1 mbar abs up to +0.5 bar (g).
- Operating Temperature: -50°C to +180°C.
- Agitator Drive: High-torque gear motor with digital tachometer (40 to 400 RPM) and PTFE-sheathed stirrer shaft with interchangeable blades (anchor, propeller, turbine).
- Zero-Dead-Space Drain Valve: Spring-loaded PTFE flush bottom valve ensuring leak-free sealing across full thermal range with zero stagnant fluid holdup.
- Head Connections: Multi-neck glass lid with standard ground joints and GL thread ports for condensers, addition funnels, temperature sensors (PT100), and dosing lines.
| UNIT CAT. REF. | ADDITION FUNNEL (ML) | CONDENSER LENGTH | LXBXH |
|---|---|---|---|
| BLR 0.5 (100DN) | 200 | 300 | 250X250X900 |
| BLR 1 (100DN) | 250 | 300 | 250X250X900 |
| BLR 2 (100DN) | 500 | 300 | 250X250X1350 |
| BLR 3 (150DN) | 500 | 300 | 250X250X1450 |
| BLR 5 (150DN) | 500 | 400 | 350X350X1450 |
Salient Features :
- Reactors equipped with the flush bottom valve of the special type to ensure leak-free sealing over entire temperature range.
- All reactors are designed to keep L/ID Ratio within 1.5(max) for performance and easy scale up. L/ID ratio may be changed on request.
- All These Reactors are designed GMP.
- Manufacture from German Raw Material.
- Ideal for benchtop fume hoods.(SS/MS)
- STIRRER SHAFT WILL BE 10 mm in diameter and will be inserted into the motor drive. Instead of a magnetic coupling, we are now offering a stuffing guide from Cowie, imported from the United Kingdom.
- Skid mounted and quick release coupling for ease of installation and dismantling.
- Overhead stirrer motor with built-in speed controller and display.
- Interchangeable Stirred (Anchor/Propeller/Turbine) as per your suitability.
Optional :
- Vacuum Pump
- Digital Temp Indicator
- Chiller
- Heating / Cooling System
- Hot Water/ Oil circulator
- Mobility Support
Your frequently asked question
A Double-Walled reactor incorporates a heating/cooling jacket for circulating thermal fluid between -50°C and +180°C. A Triple-Walled reactor adds an outer sealed high-vacuum insulation jacket. This outer vacuum barrier prevents condensation and frost formation during cryogenic runs, maintains stable process temperatures by preventing heat loss, and protects laboratory personnel against accidental burns when handling hot reaction mixtures.
Goel Glass supplies benchtop reactors in standard working capacities of 0.5L, 1.0L, 2.0L, 3.0L, and 5.0L. Each vessel is engineered with an L/D aspect ratio of ~1.5 to provide optimal agitation dynamics and linear scale-up to pilot plant units. All vessels feature standard DN100 or DN150 flat-ground flange lids with interchangeable ports.
The system can be fully configured with digital overhead stirrers (40–400 RPM), PTFE anchor/propeller impellers, high-efficiency coil condensers, graduated pressure-equalizing dropping funnels, PT100 temperature sensor thermowells, reflux splitters, distillate collection receivers, and heating/chilling circulator connections.
Our proprietary PTFE flush bottom valve features a contoured spindle that seats exactly flush with the interior bottom glass contour. This eliminates unmixed dead volume beneath the agitator blade, ensures uniform reaction stoichiometry, and guarantees complete product drainage without disassembly.