Kesar Control Systems
Walk in Stability Chamber
Introduction
A Walk-in chamber that is large enough a stability chamber that is large enough for a scientist to physically walk into and perform their tests. Walk-in chamber types are prevalent in more prominent pharmaceutical companies where large batches of drugs are to be tested at the same time. Other than that, a walk in stability chamber works in the same way as a normal reach-in stability chamber by managing the parameters of temperature and relative humidity within the walk-in chamber to perform tests. As a trusted walk in stability chamber manufacturer, our commitment to precision and quality ensures that these chambers deliver reliable and accurate results, meeting the stringent standards of the pharmaceutical industries.
Construction
- Constructed and fabricated on fully automatic CNC machines.
- Pre-fabricated modular panel type construction with PUF insulation to be assembled on site.
- Floor panels have extra reinforcement to sustain the movement and sample load inside the chamber.
- The inner working chamber is water and vapor tight, made with high-grade stainless steel.
- Chambers are installed with an effective air circulation system, heating & cooling systems, & humidity generator system.
- Multi-pane vacuum-sealed observation glass window to view the samples without disturbing the test condition & human safety.
- Heavy duty solid stainless steel duly electro polished wire mesh/ perforated type trays are provided which are easy to clean, time & effort saving, also adjustable for convenience, along with detachable racks with adjustable angles.
Technical Specification
| Temperature Range | 20℃ to 60℃ |
|---|---|
| Humidity Range | 40%RH to 95%RH |
| Accuracy | ±0.5℃ & ±2.0% RH |
| Uniformity | ±2.0 ℃ & ±3.0% RH |
| Test Suitable For | 25℃ & 60% RH, 30℃ & 65% RH 40℃ & 75% RH, 30℃ & 75% RH |
| Specially-designed chambers for Low Humidity conditions such as 25 ℃ 40% RH, 40 ℃ 25% RH, 30 ℃ 35% RH | |
Material of Construction
| Models | Material Of Construction | |
|---|---|---|
| Interior | Exterior | |
| STD | S.S.304 Dull Finish | G.I Powder Coated |
| GMP | S.S.304 Dull Finish | S.S.304 Dull Finish |
Sizes
| Models | Capacity (in ltrs.) | Dimensions (W X D X H) | No. of Trays | |
|---|---|---|---|---|
| Internal Width X Depth X Height (mm) |
External Width X Depth X Height (mm) |
|||
| KGWS-2400 Ltr | 2400 LTR | 1600 x 750 x 2000 | 1720 x 870 x 2120 | 10 |
| KGWS-3KL | 3008 LTR | 1600 x 940 x 2000 | 1720 x 1060 x 2120 | 10 |
| KGWS-4KL | 4000 LTR | 1600 x 1250 x 2000 | 1720 x 1370 x 2120 | 16 |
| KGWS-5KL | 5120 LTR | 1600 x 1600 x 2000 | 1720 x 1720 x 2120 | 16 |
| KGWS-6KL | 6120 LTR | 1700 x 1800 x 2000 | 1820 x 1920 x 2120 | 16 |
| KGWS-7KL | 7000 LTR | 1750 x 2000 x 2000 | 1870 x 2120 x 2120 | 16 |
| KGWS-8KL | 8000 LTR | 1850 x 2080 x 2080 | 1970 x 2200 x 2200 | 16 |
| KGWS-10KL | 10000 LTR | 1850 x 2600 x 2080 | 1970 x 2720 x 2200 | 24 |
| KGWS-12KL | 12000 LTR | 1850 x 2730 x 2380 | 1970 x 2850 x 2500 | 24 |
| KGWS-16KL | 16000 LTR | 2250 x 3000 x 2380 | 2370 x 3120 x 2500 | 24 |
| KGWS-18KL | 18000 LTR | 2250 x 3380 x 2380 | 2370 x 3500 x 2500 | 32 |
| KGWS-20KL | 20000 LTR | 2250 x 3740 x 2380 | 2370 x 3860 x 2500 | 32 |
| KGWS-24KL | 24000 LTR | 2480 x 4100 x 2380 | 2600 x 4220 x 2500 | 32 |
Other Details
Specifications
A Walk-in Chamber is a precision scientific machine that requires the highest level of precision even in the making to ensure it is safe for use. After all, scientific testing for pharmaceuticals is done by scientists physically entering the chamber to perform their testing.
Control Systems
7″ HMI with TFT LCD Colour touch screen with password protection for all parameter actual status monitoring of utilities like Sensor, Heating & Cooling System, and Humidity System.
Imported make 4-20mA sensors for better accuracy.
PLC with auto tuning facility for accurate control of temperature and humidity conditions.
Data Storage facility in HMI and PLC both. PLC'S stored data transfer in software via Ethernet and HMI'S stored data can be view and obtain in PDF form through USB Drive.
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Features
- Stainless-steel modular construction.
- PUF insulation.
- Multi-pane vacuum-sealed observation glass windows.
- Heavy-duty solid stainless steel duly electro polished Perforated type trays which are easy to clean and adjustable.
Special Features
- Person trapped Special door lock is provided which can opened from inside even if locked from outside
- Door operation with password Access for Particular USER having the event log. Door open ENTRY USER:-XYZ & Door open EXIT USER:-XYZ in software.
- Person trapped cut off facility in chamber.
Safety & Alarm Features
- Password protected door access.
- Person trapped cut off facility in the chamber.
- Temperature deviation & RH deviation alarm.
- Power Failure Alarm.
- Extreme temperature & RH prevention cut-off system.
- Low water level cut off.
- Continues open door alarm.
- Auto change over Facility for RH Generator & Cooling System.
Optional Features
- Stand by Cooling System.
- Stand by Humidity System.
- Scanner (8 Temp. + 8 RH for Online Monitoring Purpose).
- GSM Alert System.
- Security Alarm System.
Software (21 CFR Part-11 Compliance)
- Log data, Event data, Audit Trail data, E-Records & E-signatures, Graphical analysis & Data acquisition.
FAQ'S
A walk-in stability chamber is a room-sized version of a standard stability chamber, large enough for a technician to physically enter and load or inspect samples. It controls temperature (20°C–60°C) and relative humidity (40–95% RH) using the same PID/PLC feedback-loop principle as a reach-in chamber, just applied at building scale — used by pharmaceutical manufacturers running concurrent ICH stability studies across large batch volumes.
A reach-in stability chamber (90–1,000 litres) suits R&D labs and mid-size QC testing where samples are loaded through a front door. A walk-in stability chamber (2,400–24,000 litres) is a modular, panel-built room a person enters to load and inspect racks of product, built for manufacturers running multiple large-batch studies at once without needing several separate reach-in units.
A walk-in chamber makes sense once a facility is running concurrent long-term, intermediate, and accelerated studies across multiple product batches simultaneously. It consolidates what would otherwise require several 500–1,000 litre reach-in chambers into one space-efficient, centrally monitored unit with a single control system, reducing both floor space and the number of systems that need independent calibration.
Confirm ICH Q1A(R2) test-condition support, PUF-insulated modular panel construction with a water/vapor-tight stainless steel inner chamber, occupant safety features (person-trapped emergency release, password-controlled logged access), 21 CFR Part 11 compliant data logging, and whether IQ/OQ/PQ validation documentation is available as a packaged option. These determine whether the chamber will pass a CDSCO or WHO-GMP facility audit.
Kesar Control's KGWS series ranges from 2,400 litres to 24,000 litres across 13 standard models, with tray capacity from 10 to 32 trays depending on size, and can be custom-configured for larger facility footprints.
The walk-in stability chamber holds 20°C to 60°C and 40% to 95% RH with ±0.5°C temperature accuracy and ±2.0% RH humidity accuracy, and ±2.0°C/±3.0% RH uniformity across the chamber, within ICH Q1A(R2) tolerance limits for long-term, intermediate, and accelerated stability studies.
Yes. It includes a person-trapped emergency door release that can be opened from inside even if locked from outside, a person-trapped cutoff facility, password-controlled door access with a logged entry/exit audit trail, and a continuous open-door alarm, all standard for occupied chamber operation.
Yes. The control system logs data, event history, and audit trails, and supports electronic records and electronic signatures (e-Records/e-Signatures) as required under 21 CFR Part 11 for pharmaceutical companies submitting stability data to CDSCO, USFDA, or EMA.
