Continuous Stirred Tank Reactor
Product Code : LSK-TWL-10820
Continuous Stirred Tank Reactor (SKU LSK-TWL-10820), or CSTR, is a chemical reaction engineering rig for studying a non-catalytic homogeneous second-order liquid-phase reaction at ambient conditions in a well-mixed, continuously fed vessel. It is built for B.Tech chemical engineering and diploma laboratories. Science Lab Supplies manufactures the rig at its factory at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and supplies it directly to universities, tender contractors and distributors as one of the engineering lab equipment manufacturers in India.
Specifications
Every technical detail of the rig is listed in the table below. In short, compressed air drives reactants from two stainless steel feed tanks through rotameters with needle valves into a stirred 2-litre stainless steel reactor, with a regulator, Bourdon gauge and safety valve on the air line and sampling from the top outlet.
| Specification | Value |
|---|---|
| SKU | LSK-TWL-10820 |
| Reactor material | Stainless steel |
| Reactor capacity | About 2 litres |
| Sampling | Top outlet of the reactor |
| Stirrer | Stainless steel impeller and shaft, FHP motor |
| Number of feed tanks | 2 |
| Feed tank material | Stainless steel |
| Feed tank capacity | 20 litres |
| Feed circulation | Compressed air |
| Flow measurement | 2 rotameters with needle valves |
| Pressure regulator | 0–2 kg/cm² |
| Pressure gauge | Bourdon type, 0–2 kg/cm² |
| Safety valve | Fitted in the compressed air line |
| Piping | Stainless steel and PVC |
| Stopwatch | Electronic |
| Control panel | On/off switch and mains indicator |
| Compressed air required | 1 HP, 2 CFM |
| Electricity supply | 220 V AC, single phase, 0.5 kW |
| Other utilities | Water supply and drain |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Continuous Stirred Tank Reactor
The CSTR is used to follow the progress of a suitable reaction and determine its rate constant. Because the vessel is well mixed, the exit stream has the same composition as the reactor contents, so samples from the outlet give the steady-state conversion at each flow rate.
- B.Tech/B.E. chemical engineering: chemical reaction engineering laboratory.
- Determining the rate constant of a second-order liquid-phase reaction from steady-state data.
- Studying how residence time, set by the rotameter flows, changes conversion.
- Diploma chemical engineering practicals on mixed flow reactors.
Reactant solutions may be corrosive, so they should be prepared and handled under supervision with suitable protective equipment.
Standard Scope of Supply
The rig includes the 2-litre reactor with stirrer and FHP motor, two 20-litre feed tanks, two rotameters with needle valves, the air-line regulator, gauge and safety valve, piping, control panel and electronic stopwatch. Not included: the compressed air supply, and the instruments, glassware and chemicals needed for analysis.
Packing, MOQ and Lead Time
You can request a quotation for one reactor or for a complete reaction engineering lab. It will list packing, delivery time and price for that quantity, and other reactors from the Training Workshop Labs range can be added to the same quotation.
As a registered exporter with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Malaysia, Peru, Egypt, Iraq, Nigeria and Kenya. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Use the contact page or enquiry cart to request the CSTR, and if your department buys through a tender, the lab tender page is the starting point.
Frequently Asked Questions
How is the feed pumped into the reactor?
The feed is moved by compressed air. The laboratory provides air at 1 HP, 2 CFM, and the regulator, gauge and safety valve on the rig control the air line.
How does this differ from the isothermal CSTR?
This model runs at ambient temperature with air-driven feed. The isothermal version places the reactor in a constant-temperature water bath to study the effect of temperature on the rate constant.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies is the manufacturer. The reactor is built at its own factory in Saha, Ambala, India, and quotations come straight from the factory.
Are the chemicals for analysis supplied?
No. Instruments, glassware and chemicals for analysis depend on the reaction system your lab adopts and are arranged separately; titration glassware such as a Borosilicate Glass Burette 50ml, Borosilicate Conical Flask and Volumetric Pipette 5ml can be added to the quotation.
Related Chemical Reactors
These rigs from the Training Workshop Labs range let students set mixed-flow behaviour against plug-flow, batch and residence-time studies, so the ideal reactor types of a reaction engineering course can be compared side by side, and any of them can be quoted with this CSTR.
- Isothermal Continuous Stirred Tank Reactor — magnetic drive pump feed and a constant temperature water bath for runs at several temperatures.
- RTD Studies in CSTR — single feed tank, magnetic drive pump and syringe tracer dosing for pulse RTD curves.
- Plug Flow Reactor (Coiled Tube Type) — helical coil tube reactor in which reactants enter at the lower end.
- Isothermal Batch Reactor — 2-litre stainless steel reactor in a water bath held from ambient to 90 °C.
- Plug Flow Reactor, Straight Tube Type — horizontal straight tube reactor fed by compressed air from two feed tanks.
- RTD Studies in Packed Bed — glass column packed with Raschig rings, with tracer injection at the lower end.
- Chemical Reactor Training Equipment — two variable speed diaphragm pumps with combined conductivity and temperature measurement.
Browse the full Training Workshop Labs range, the Lab Glassware range for analysis glassware, or all TVET lab equipment.
Last updated: 9 October 2026
