148/A, Sodepur Road, Madhyamgram, Kolkata - 700129, West Bengal, India +91 9339603256 [email protected]

Custom-Designed RO System Manufacturer

Every facility's feed water tells a different story — a textile unit pulling from a borewell loaded with iron, a hospital running on hard municipal supply, a packaged drinking water plant chasing a tight TDS spec. Push that water through a generic, off-the-shelf RO unit and you usually get the same result: faster membrane fouling, more reject water down the drain, and a maintenance team firefighting breakdowns instead of running production.

That's the gap we close. As a custom-designed RO system manufacturer based in Kolkata, India, Technochem doesn't sell a catalogue model and hope it fits — we test your raw water, study your required output, and engineer a reverse osmosis plant around those exact numbers. Pre-treatment, membrane array, dosing, and automation are all sized for your site, not a generic average. ISO 9001:2015 certified and manufacturing in-house since 2012, this is the approach we've carried into industrial, commercial, and institutional projects across India.

Scope

What Is a Custom-Designed RO System — and Who Needs One?

A reverse osmosis (RO) system forces water through a semi-permeable membrane to strip out dissolved salts, hardness, heavy metals, and microbial contaminants. A standard RO unit is built around assumed, average water conditions. A custom RO system manufacturer instead starts with your actual feed water report — TDS, hardness, iron, pH, microbial load — and your required flow rate, then designs pre-treatment and membrane staging specifically for that combination.

Who We Work With

As a customized RO plant manufacturer, we typically work with:

  • Pharmaceutical & API manufacturers needing high-purity, pyrogen-controlled input water
  • Food & beverage and packaged drinking water units needing consistent TDS and recovery rates
  • Textile, dyeing, and process industries handling variable, high-TDS feed water
  • Hospitals, diagnostic labs, and dialysis centres needing purified water for clinical use
  • Hotels, resorts, and hospitality groups needing reliable guest and laundry water supply
  • Dairies, breweries, and beverage plants with continuous production-line water needs
  • Real estate developers and townships needing centralized treatment for multiple buildings
  • Municipal and government bodies running larger public water infrastructure

Our experience isn't limited to RO alone — we have delivered an Iron Removal Plant for the Tripura Government and a Sewage Treatment Plant for the Royal Government of Bhutan, which tells you something about the scale and rigour we bring to water treatment projects generally, RO included.

250 LPH RO Plant

250 LPH RO Plant
ItemSpecificationQuantity
Filter Vessel12 482 no.
Filter MediaSand + Gravel60 kg
Filter MediaActivated Carbon40 kg
Multiport Valve25 nb2 no.
Feed Pump0.5hp1 no.
High Pressure Pump2-091 no.
Dosing System6lph + tank1 no.
Membrane40401 no.
Membrane Housing4040 SS1 no.
Cartridge FilterSlim (20"x2.5")1 no.
Rotameter2 no.
Pressure Gauge100/3002 no.
Panel1/11 no.
RO StructureSS1 no.
Treated Water Tank200 ltr SS1 no.
Pipeline and Fittings25 nb1 lot
Electrical Wiring1 lot
LPS/HPS2 lot

Price: Rs. 1,18,000

500 LPH RO Plant

500 LPH RO Plant
ItemSpecificationQuantity
Filter Vessel13 542 no.
Filter MediaSand + Gravel80 kg
Filter MediaActivated Carbon40 kg
Multiport Valve25 nb2 no.
Feed Pump0.5hp1 no.
High Pressure Pump2-111 no.
Dosing System6lph + tank2 no.
Membrane40402 no.
Membrane Housing4040 SS2 no.
Cartridge FilterBig Blue1 no.
Rotameter2 no.
Pressure Gauge100/3002 no.
Panel1/11 no.
RO StructureSS1 no.
Treated Water Tank500 ltr SS1 no.
Pipeline and Fittings25 nb1 lot
Electrical Wiring1 lot
LPS/HPS2 no.
Flow Sensor3/42 no.

Price: Rs. 1,62,000

1000 LPH RO Plant

1000 LPH RO Plant
ItemSpecificationQuantity
Filter Vessel16 652 no.
Filter MediaSand + Gravel90 kg
Filter MediaActivated Carbon60 kg
Multiport Valve40 nb2 no.
Feed Pump1 hp1 no.
High Pressure Pump2-151 no.
Dosing System6lph + tank1 no.
Membrane80401 no.
Membrane Housing8040 SS1 no.
Cartridge FilterBig Blue2 no.
Rotameter2 no.
Pressure Gauge100/3002 no.
Panel1/11 no.
RO StructureSS1 no.
Treated Water Tank1000 ltr SS1 no.
Pipeline and Fittings45 nb1 lot
Electrical Wiring1 lot
LPS/HPS2 no.
Flow Sensor3/42 no.
Solenoid Valve2 no.

Price: Rs. 2,15,000

2000 LPH RO Plant

2000 LPH RO Plant
ItemSpecificationQuantity
Filter Vessel18 652 no.
Filter MediaSand + Gravel160 kg
Filter MediaActivated Carbon120 kg
Multiport Valve40 nb2 no.
Feed Pump1.5 hp1 no.
High Pressure Pump2-181 no.
Dosing System6lph + tank1 no.
Membrane80402 no.
Membrane Housing8040 SS2 no.
Cartridge FilterBig Blue2 no.
Rotameter2 no.
Pressure Gauge100/3002 no.
Panel1/11 no.
RO StructureSS1 no.
Treated Water Tank2000 ltr SS1 no.
Pipeline and Fittings45 nb1 lot
Electrical Wiring1 lot
LPS/HPS2 no.
Flow Sensor3/42 no.
Solenoid Valve2 no.

Price: Rs. 3,60,000

Benefits

Benefits of a Custom-Designed RO System

When the system is engineered around your actual water and output target, the gains show up in day-to-day operations, not just on a datasheet:

Lower operating cost

Pre-treatment matched to your feed water means less membrane fouling and fewer cleaning-in-place cycles.

Consistent permeate quality

Hits your target TDS and hardness reliably, which matters when pharma or food-grade compliance is on the line.

Higher recovery, less reject water

More usable water from the same source, especially valuable where water availability is tight.

Less unplanned downtime

Pumps and membranes sized correctly aren't overworked or underworked.

Easier regulatory compliance

Output engineered to meet IS 10500, CPCB, or sector-specific norms.

Built-in scalability

Modular design lets you add capacity later without re-engineering the whole plant.

Better energy efficiency

Right-sized high-pressure pumps reduce power consumption per litre produced.

Process

Our Process — From Water Test to Commissioning

1
Enquiry & Water Analysis

We collect your feed water parameters (TDS, hardness, iron, pH, microbial load) and your required output volume.

2
Feasibility Study & Engineering Design

Our team designs the pre-treatment train, membrane configuration, and automation level based on that analysis.

3
Detailed Proposal & BOQ

A transparent, itemized bill of quantities covering vessels, pumps, membranes, instrumentation, and structure — no hidden line items.

4
In-House Manufacturing & Quality Checks

Fabricated in SS/FRP at our Khilkapur (North 24 Parganas) manufacturing facility, with each unit pressure-tested before dispatch.

5
Installation & Commissioning

On-site piping, electrical work, and commissioning carried out by our own engineers, not a third-party contractor.

6
Operator Training & Handover

Your team is trained on daily operation, cleaning-in-place, and basic troubleshooting.

7
After-Sales Support & AMC

Scheduled maintenance, membrane replacement, and remote troubleshooting support.

Why Technochem

Why Choose Technochem as Your RO System Manufacturer

Plenty of vendors can sell you a catalogue RO skid. Fewer can engineer a system around your specific feed water and stand behind it after commissioning. Here's what sets us apart:

  • ISO 9001:2015 certified manufacturer, MSME registered, and recognized under the Make in India initiative.
  • Over a decade of hands-on engineering experience, manufacturing under our own brand since 2012.
  • In-house manufacturing facility in West Bengal — we build the equipment ourselves; we are not a trading or reseller setup.
  • Proven on large institutional work, including an Iron Removal Plant for the Tripura Government and a Sewage Treatment Plant for the Government of Bhutan — engineering capability that goes well beyond a catalogue RO unit.
  • Broad in-house competency across Industrial RO, ETP, STP, Iron Removal, Arsenic Removal, and Dialysis Plants — so your RO system is designed with full awareness of pre-treatment and downstream requirements, not in isolation.
  • Transparent, itemized quotations with no hidden costs.
  • Pan-India delivery and installation support, with a dedicated phone and WhatsApp line for fast response.
Case Studies

Representative Projects & Results

The scenarios below reflect the type of work we regularly execute for clients in these sectors. Specific outcomes vary by site, feed water quality, and configuration.

Packaged Drinking Water Unit — West Bengal

Challenge: Borewell feed water at roughly 1,800 ppm TDS, with a requirement for 2,000 LPH output suitable for packaged drinking water standards and minimal reject loss.

Solution: Multi-stage sand and activated carbon pre-treatment, dual 8040 membrane configuration, dosing tuned to the feed chemistry, and an SS structure with a 2,000-litre SS storage tank.

Result: A system engineered to handle the higher TDS load while controlling recovery loss, with monitoring needs reduced from daily to weekly checks once the dosing was stabilized.

Pharmaceutical Manufacturing Unit — Eastern India

Challenge: RO-grade input water required ahead of an injectable-grade purification stage, with fluctuating municipal hardness levels.

Solution: Water softening paired with an RO skid and full instrumentation (rotameters, pressure gauges) fitted into an existing utility room footprint.

Result: Stable, consistent feed quality into the next purification stage, with a lower membrane replacement frequency thanks to correctly sized pre-treatment.

Boutique Hotel — Kolkata

Challenge: A 1,000 LPH RO plant required in a tight utility space for guest drinking water and laundry use, against an intermittent municipal supply.

Solution: A compact SS-skid 1,000 LPH RO unit with a buffer tank and automated low/high-pressure switches to manage supply interruptions.

Result: Uninterrupted clean water supply to guest floors and the laundry, with the plant fitting entirely within the available utility space.

Pricing

Custom RO Plant Pricing & Packages

Pricing depends on capacity, feed water condition, automation level, membrane brand, and construction material. The table below gives an indicative starting point for standard SS-build configurations:

Capacity Typical Use Case Indicative Starting Price*
250 LPH Clinics, small offices, retail RO points. ₹ 1,18,000*
500 LPH Small F&B units, schools, residential complexes. ₹ 1,62,000*
1000 LPH Mid-size manufacturing units, hotels, hospitals. ₹ 2,15,000*
2000 LPH Packaged drinking water units, larger industrial plants. ₹ 3,60,000*
Above 2000 LPH Large industrial, pharmaceutical, and municipal projects. Custom Quote

*Indicative starting prices for standard SS-build configurations as of 2026. Final pricing is confirmed after a free water test and site review; it varies with feed water quality, automation level, membrane brand, and site conditions.

Coverage

Where We Manufacture & Deliver

Technochem is headquartered in Madhyamgram, Kolkata, with our manufacturing facility located at Khilkapur, North 24 Parganas, West Bengal. As an established RO plant manufacturer in India, we deliver and install custom systems across:

Whether you need a single RO system supplier for one facility or are scaling treatment across multiple sites nationwide, our team handles design, manufacturing, and installation end-to-end from one point of contact.

Testimonials

What Our Clients Say

Client names withheld at their request; these reflect the type of feedback we regularly receive.

“

We needed an RO plant that could handle our borewell's high iron and TDS without breaking down every other week. Technochem actually tested our water before quoting, and the system has run reliably since installation.

Plant Manager

Food Processing Unit, West Bengal

“

Their team didn't just supply equipment — they walked our maintenance staff through operation and troubleshooting. After-sales support has been responsive every time we've called.

Facilities Head

Hospitality Group, Kolkata

“

Their track record on large IRP and STP projects for government clients gave us confidence they could handle our pharma utility upgrade. The proposal was detailed and transparent — no surprise costs later.

Project Engineer

Pharmaceutical Manufacturer

FAQ

Frequently Asked Questions

A standard, off-the-shelf RO plant is built to average assumptions about feed water. A custom-designed RO system manufacturer tests your actual raw water — TDS, hardness, iron, microbial load — and engineers pre-treatment, membrane configuration, and automation specifically for that water and your required output, reducing fouling and downtime.

Pricing depends on capacity (LPH), feed water quality, automation level (manual vs. PLC-controlled), membrane brand, and SS or FRP construction. We provide a transparent, itemized BOQ after reviewing your water report and output requirement.

Yes. We regularly design systems for variable feed sources, including borewell, municipal, and surface water with elevated TDS, hardness, or iron content, adjusting pre-treatment and membrane staging accordingly.

Pharmaceutical and food & beverage manufacturers, packaged drinking water units, textile and dyeing units, hospitals, hotels, dairies, breweries, and municipal or government water projects commonly need customized systems rather than standard catalogue units.

Lead time depends on capacity and customization level. Standard-capacity plants (up to 2,000 LPH) are typically manufactured within a few weeks of design approval, with installation and commissioning scheduled immediately after delivery. Larger or highly customized systems are scoped individually.

Yes. We provide operator training at handover and offer ongoing Annual Maintenance Contracts covering scheduled servicing, membrane replacement, and troubleshooting support.

Yes. While our manufacturing facility and head office are based in Kolkata, West Bengal, we deliver and install custom RO systems across India, and have also executed institutional water treatment projects outside India, including for the Government of Bhutan.

Ready for an RO System Built Around Your Water — Not a Catalogue?

Send us your water report (or let us arrange a test) and your required output, and we'll come back with an engineered design and a transparent, itemized quote. As a custom-designed RO system manufacturer with over a decade of in-house manufacturing experience, we're set up to take on projects of any scale, from a single 250 LPH unit to multi-stage industrial plants.

Get Your Free Water Test & Quote

For plants above 2000 LPH capacities, please contact us to get a customized solution tailored to your specific requirements. We are here to help!

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