Cleanroom Equipments
Dispensing Booth/ Reverse Laminar Air Flow
SS 304 / 316
Stainless steel grade
Custom
Fabrication to spec
Cleanroom
Category
About This Product
Product Overview
Neelansh equipment & machines is a salient manufacturer, supplier & exporter of stainless steel dispensing booth / reverse Laminar Air Flow. Laminar Air Flow is compatible in every working environments where it can be used in Pharmaceutical and Biotech.
A dispensing booth (reverse laminar air flow) is used for weighing, sampling and dispensing raw materials and powders. Air is recirculated through three filtration stages ending in a HEPA filter, giving a Class 100 (ISO Class 5) work zone that protects both the product and the operator from airborne dust.
Every dispensing booth is manufactured in-house at our factory in Hadapsar, Pune. We supply, install and commission dispensing booths across India, including Mumbai, Hyderabad, Chennai, Bangalore and Ahmedabad, and build each unit to your room layout, size and process requirements.
Guide
What is a dispensing booth and how does it work?
A dispensing booth, also called a reverse laminar air flow (RLAF), sampling booth or downflow booth, is an open-fronted stainless steel enclosure where raw materials and powders are weighed, sampled and dispensed. It has two jobs at once: keep the material clean, and keep the dust it releases away from the operator and the rest of the room.
Filtered air flows down from the ceiling of the booth over the work zone. Instead of being blown out into the room, it is drawn into return grilles low on the rear wall, so dust released while scooping or pouring is pulled down and away from the operator's breathing zone. The air then passes through a series of filters ending in a HEPA filter and is recirculated, with a small share bled out to keep the booth at a slight negative pressure relative to the room.
That is the key difference from laminar air flow units, which protects only the product and blows air towards the operator. A dispensing booth protects both, which is why it is the standard place for handling active ingredients and fine excipients.
Design
What goes into our dispensing booths
Three-stage filtration
Pre filter (10 micron), fine filter (5 micron) and HEPA filter (0.3 micron), giving Class 100 (ISO Class 5) air in the work zone.
Recirculating downflow
Air moves down over the work zone and into low return grilles at the back, capturing dust at the source.
Monitoring
Magnehelic gauges show filter loading, with an hour meter, UV lights and a PAO port for HEPA integrity testing.
Operator side
Anti-static PVC curtain at the front, work zone lighting, air and gas cocks, and on/off controls through an MCB-protected panel.
Applications
Where dispensing booths are used
Raw material dispensing
Weighing active ingredients and excipients for each batch in pharmaceutical plants.
Sampling
Taking samples from incoming drums and bags in the warehouse sampling room.
Biotech and nutraceuticals
Handling fine powders, culture media and ingredients that must not spread.
Food and cosmetics
Weighing flavours, colours and powders in hygienic production areas.
Chemical handling
Dusty, non-volatile powders that should be contained away from the operator.
Multi-product plants
Reducing cross-contamination where different products are dispensed in the same area.
Buying guide
How to choose the right dispensing booth
Booth size
Allow space for the weighing balances, drums or bags, pallet or trolley and the number of operators working at once.
Room height and layout
The filter and blower section sits above the work zone, so check the clear ceiling height and the door you will move material through.
Filtration and monitoring
Multi-stage filtration with a HEPA final stage, plus gauges on each stage so you know when to change filters.
Material of construction
SS 304 for regular disinfection and cleanability; powder-coated MS where the duty is lighter.
Noise and lighting
Operators spend long shifts here: check the noise level and lighting at the work surface.
Testing access
A PAO port and velocity measurement points make qualification and routine checks simple.
How we work
From enquiry to installation
Every dispensing booth is built to order through the same six stages, so the unit fits your room and your process.
- 01
Planning: your room layout, process and transfer or work needs
- 02
Evaluation: size, airflow, filtration and material grade
- 03
Inspection: site measurements and wall or ceiling openings
- 04
Design: drawings shared for your approval before fabrication
- 05
Manufacturing: fabricated in-house at our Pune factory
- 06
Installation: delivered, installed and commissioned at your site
Supply across India
Dispensing booth manufacturer in Pune, supplying across India
Neelansh Equipments & Machines manufactures dispensing booths (reverse laminar air flow) in-house at our factory in Hadapsar, Pune. We supply, install and commission them across India, including Mumbai, Hyderabad, Chennai, Bangalore and Ahmedabad, sized to your balances, containers and room.
Dispensing booths usually sit next to other cleanroom equipment such as pass boxes for moving dispensed material into production. Share your room size and batch handling details and send us your requirement for a quotation.
Product Details
Specifications
| MOC | Stainless Steel 304 grade/ Powder coated MS |
|---|---|
| Filters | i. HEPA Filter (0.3 Microns); ii. Pre Filter (10 Micron); iii. Fine Filter (5 Micron) |
| Air Flow Direction | Recirculating laminar air flow |
| Air Cleanliness | Class 100, ISO Class 5 |
| Air Velocity | 90±20 cfm (Average) |
| Noise Level | 68±3 dB |
| Control Panel | MCB-32 AMP |
| Power Supply | Single Phase 220v, 50HZ |
| Blower Unit | Heavy duty motor assembly |
| PAO Port | Poly Alfa Olefin HEPA Integrity Test Port |
| Standard Fitting | Mains On/ off switch; Light on/ off switch; UV Lights; Blower on/ off switch; Air/ gas cock; Magnehelic Gauge; Hour meter; Anti-static PVC curtain |
- 3 Stage Filtration
- Well engineered and specific design.
- Also used for outdoor applications.
- Hassle free installation and easy maintenance.
- Longer functional and service life.
- Having good durability and long lasting.
Questions
F.A.Q.
Do you provide customised size RLAF?
Yes, we are supplying customised size RLAF.
Do you offer installation services?
Yes, we are providing installation services for our own equipment.
What is a dispensing booth used for?
For weighing, sampling and dispensing raw materials and powders in pharmaceutical and biotech plants. The recirculating HEPA-filtered airflow keeps the work zone at Class 100 (ISO Class 5) and contains dust, protecting both the product and the operator.
Do you supply and install dispensing booths outside Pune?
Yes. We manufacture in Pune and supply, install and commission dispensing booths across India, including Mumbai, Hyderabad, Chennai, Bangalore and Ahmedabad. Share your requirement and we will send a quotation.
What is the difference between a laminar air flow and a reverse laminar air flow?
A laminar air flow blows HEPA-filtered air over the work surface and out towards the operator, so it protects only the product. A reverse laminar air flow (dispensing booth) draws the air down and back into low return grilles, so dust is captured away from the operator: it protects both the product and the person.
What filters are used in your dispensing booths?
Three stages: a pre filter (10 micron), a fine filter (5 micron) and a HEPA filter (0.3 micron), with magnehelic gauges to show filter loading.
What size dispensing booth do I need?
It depends on your weighing balances, the size of drums or bags, whether a pallet or trolley enters the booth and how many operators work at once. We build each booth to your layout.
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Need a custom Dispensing Booth/ Reverse Laminar Air Flow or a specific configuration? Our team will help you find the right solution.
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A-302, Binawat Majestic, Sasane Nagar Road, Hadapsar, Haveli, Pune-411028, Maharashtra, India