Laboratory instruments, made to your drawing.

We manufacture clean air, cleanroom and cold chain equipment — and build turnkey cleanrooms — at our own works in Chennai, installed across India.

Made to order · Our own works in Chennai · Installed across India

Laboratory equipment we build

Explore equipment by application

Every photograph here is a unit we built, shot in our own works — examples of what we make, not a fixed range. Each one is built to your size.

Also built to orderHot air ovensWater bathsDeep freezersStability chambersAsk for anything else

Which cabinet do you need?

The difference is what each one protects. Tell us the work and we will say which it is.

White powder-coated horizontal laminar air flow cabinet on a tubular stand, front sash raised over the HEPA filter face

Horizontal laminar air flow

Protects the sample, not the operator

Filtered air flows from the back of the cabinet across the work and out towards you. Right for sterile work with harmless material — media plating, sterile assembly, subculture.

Never use one for infectious, toxic or sensitising material.

Vertical laminar air flow cabinet with white body, blue fascia, pressure gauge and lit stainless work tray behind a glass sash

Vertical laminar air flow

Protects the sample, not the operator

Same filtration, but air falls from above the work rather than crossing it. Chosen where the operator leans into the work zone, or the bench is deep.

Same limitation — sample protection only.

Stainless steel Class II biosafety cabinet with blue front fascia, pressure gauge, glass sash and perforated work tray

Biosafety cabinet (Class II)

Protects the sample and the operator

Air is drawn in at the front before it reaches you and exhausted through HEPA. Required for infectious samples, cultures and clinical material.

The right choice whenever a laminar flow cabinet would put the operator at risk.

Laboratory fume hood with white outer frame, blue interior lining, viewing sash and twin-door storage cabinet below

Fume hood

Protects the operator from chemicals

Ducted extraction for volatile reagents, acids and solvents. It removes fumes; it does not give you clean air over the work.

Not a substitute for a laminar flow or biosafety cabinet — it does not keep a sample sterile.

Completed cleanroom production hall with modular wall panels, flush LED ceiling lighting, terminal filter grilles, stainless work benches and coved epoxy flooring

Turnkey projects

We build the whole cleanroom.

Panels, flooring, air handling, HEPA terminals, airlocks and pass boxes — designed, built and validated as one job, to ISO Class 5 through 8.

Photographed on site in a room we built and handed over.

See cleanroom projects

If you can draw it, we can build it.

We fabricate in our own workshop, so a one-off is no harder than a repeat.

Made here. Looked after here.

From drawing to annual visit

One workshop, from the first measurements to the next service visit.

  1. 01

    Drawing and specification

    Sizes, material and finish agreed, then quoted.

  2. 02

    Fabrication

    Cut, formed, welded, wired and finished in our workshop.

  3. 03

    Installation

    Positioned, wired and airflow-checked on site.

  4. 04

    Service and AMC

    Filters, blowers, controllers, annual contracts.

Stainless steel horizontal laminar air flow cabinet with acrylic hinged sash, digital display and castor-mounted stand
Built in our workshopStainless steel laminar air flow cabinet

Service & annual maintenance

We build it, install it, and come back to service it.

Most of our service work is on equipment we built ourselves — the parts and the drawings are already here.

  • Airflow & filtration

    HEPA filters, pre-filters, seals and airflow checks.

  • Repairs & calibration

    Blowers, controllers, sensors and temperature calibration.

  • Planned maintenance

    Scheduled visits through an annual maintenance contract.

What a service visit covers

In house

Built from the sheet up.

  • Sheet metal fabrication in MS and SS 304 / SS 316
  • In-house powder coating and finishing
  • HEPA and pre-filter housings built to size
  • Blower, controller and switchgear assembly
  • Granite, epoxy and phenolic worktops
  • Site measurement, installation and commissioning

Who we build for

Different labs. Built to fit.

  • Hospitals and diagnostic labs
  • Pharmaceutical quality control
  • Food and water testing
  • Educational institutions
  • Research laboratories

Before you enquire

Common questions

Have a drawing, a room size, or a question about your lab? Talk to the people who build it.

+91 78714 44431
Does SMS Lab Instruments manufacture its own equipment, or resell it?

We manufacture. Sheet metal work in mild steel and SS 304/316, powder coating, HEPA and pre-filter housings, blower and switchgear assembly and worktops are all done at our own works in Kodungaiyur, Chennai — which is why a non-standard size is a normal order here rather than a special case.

What is the difference between a laminar air flow cabinet and a biosafety cabinet?

A laminar air flow cabinet protects the sample only: filtered air passes over the work and out towards the operator, so it must never be used for infectious, toxic or sensitising material. A Class II biosafety cabinet protects both the sample and the operator, drawing air in at the front before it reaches you and exhausting it through HEPA. A fume hood is different again — it protects the operator from chemical fumes but does not keep a sample sterile.

Can you build laboratory equipment to a custom size?

Yes — everything is built to order. Working size, overall size, material, finish, airflow and services are all fixed with you against a drawing before fabrication starts, so the unit suits the room rather than the room having to suit the unit.

Do you install laboratory equipment outside Chennai?

Yes. The works are in Kodungaiyur, Chennai, and we manufacture equipment for installation across Tamil Nadu and the rest of India. Our own fitters travel for installation and commissioning.

Do you build cleanrooms as well as the equipment inside them?

Yes. We take the whole room as one job — layout and pressure cascade, modular wall and ceiling panels, coved epoxy flooring, air handling and terminal HEPA filtration, doors, airlocks, pass boxes, air showers and electricals — to ISO Class 5 through 8, handed over with the validation readings.

Tell us what the lab needs

Works and office

No. 121, Vasugi Nagar, 7th StreetKodungaiyur, Chennai – 600 118Tamil Nadu, India