What is an industrial rectifier used for?

An industrial rectifier converts AC mains into controlled DC power for processes such as electroplating, anodizing, electrolysis, electroforming and CED coating. It supplies low voltage at high current and holds the current or voltage steady as the load changes, so coatings and process results stay uniform.

What are the types of industrial rectifiers?

SG Power makes three types of IGBT industrial rectifiers: air cooled units of 500 A to 1,000 A for clean rooms, oil cooled units of 1,500 A to 5,000 A for high currents and corrosive shops, and custom-voltage units of 24, 48 or 100 V DC. Fast polarity reversal is available as an option.

What is the difference between an IGBT and an SCR rectifier?

An IGBT rectifier switches at high frequency, so it gives lower ripple, higher efficiency and a smaller unit than an SCR (thyristor) rectifier. An SCR rectifier controls the mains waveform through a large 50 Hz transformer. SG Power makes IGBT rectifiers only, because they save up to 40% power. See the comparison table under Types of Industrial Rectifiers.

Which rectifier is best for electroplating?

An IGBT rectifier is usually best for electroplating, because its low ripple gives a bright, even deposit and its high efficiency cuts power costs on lines that run all day. For high currents, such as hard chrome, an oil cooled IGBT rectifier delivers up to 5,000 A per unit with the same low ripple.

How do I calculate the rectifier size for electroplating?

Calculate the rectifier size by multiplying the largest load area in the tank (dm²) by the current density (A/dm²), then adding a 20 to 25% margin. Choose the next standard rating above that figure. For example, 50 dm² at 4 A/dm² needs 200 A, so a 300 A rectifier fits.

What is ripple in a rectifier?

Ripple is the small AC variation left on the DC output of a rectifier, expressed as a percentage of the DC value. Lower ripple gives a smoother current, which produces brighter, more uniform plating. SG Power IGBT rectifiers keep ripple below 2%, or below 1% as an option.

What is the difference between air cooled and oil cooled rectifiers?

An air cooled rectifier uses fans to cool its heat sinks, so it suits clean, ventilated rooms. An oil cooled rectifier sits in a sealed oil tank, which protects the parts from acid fumes and humidity, so it lasts longer in plating shops and suits higher ratings.

What voltage rectifier is needed for anodizing?

Sulphuric acid anodizing of aluminium typically needs an anodizing rectifier rated up to about 24 V, while hard anodizing needs a higher voltage, often 60 V or more. The current depends on the load area. Confirm the voltage with your anodizing process supplier before ordering.

What is the price of a rectifier?

SG Power quotes the price of a rectifier on request, because it depends on the current rating, voltage, cooling and control options. High-current, oil cooled units cost more than small air cooled units. Share your process, tank load, current and voltage, and we will send an exact quote, excluding GST.

Does an IGBT rectifier save electricity?

An IGBT rectifier usually uses less electricity than an SCR rectifier, because it keeps high efficiency even when running below full load. SG Power IGBT rectifiers save up to 40% power, which is significant on plating lines that run 24x7.

What are constant current and constant voltage modes?

In constant current (CC) mode, the rectifier holds the current steady as the tank load changes, which keeps coating thickness consistent. In constant voltage (CV) mode, it holds the voltage steady, which suits processes such as anodizing and some electrochemical work. Most plating uses CC mode.

How long does an industrial rectifier last?

A well-built industrial rectifier lasts many years with routine maintenance. Life depends mainly on cooling and the shop environment, so using oil cooled units in corrosive shops and keeping air cooled units in clean, dry rooms extends service life.

What is the difference between a rectifier and an inverter?

A rectifier converts AC to DC; an inverter converts DC back to AC.

Which rectifier is used for hard chrome plating?

Hard chrome plating needs a high-current, low-voltage DC rectifier, usually rated 6 to 12 V DC, with low ripple and constant current control. Current is sized from the plated area at about 30 to 60 A/dm², so hard chrome lines often need several thousand amperes.

What is polarity reversal in a rectifier?

Polarity reversal is a rectifier feature that switches the DC output between positive and negative, manually or on a timer. It is used for periodic reverse plating, electropolishing, stripping and electrocleaning, where reversing the current improves deposit quality or cleans the surface.

Which rectifier is used for electrolysis?

Electrolysis needs a high-current, low-voltage DC rectifier that runs continuously in constant current mode. Oil cooled IGBT rectifiers suit this duty, with tight current control, ripple below 2% and up to 5,000 A per unit. Share the cell current and voltage, and we will size the rectifier for your electrolysis process.

Who are the leading manufacturers of rectifiers?

Leading industrial rectifier manufacturers build complete DC power supplies for electroplating, anodizing, electrolysis and other electrochemical processes, and back them with continuous-duty ratings, factory load tests and service support. SG Power Products in Noida is an industrial rectifier manufacturer of IGBT rectifiers, air or oil cooled.

Who are some manufacturers of high-current rectifiers in India?

SG Power Products in Noida manufactures high-current industrial rectifiers for hard chrome plating, anodizing, electrolysis and other electrochemical processes. Our oil cooled IGBT rectifiers deliver up to 5,000 A per unit at 12 V, with ripple below 2% and up to 40% power saving. Higher currents are built to order.

How do I choose a rectifier manufacturer or supplier?

Choose a rectifier manufacturer that uses energy-efficient IGBT technology, rates units for continuous duty, states ripple and efficiency in writing, and provides a factory load test report. Also check cooling options, spare parts support, service response and references in your process.

Do you supply industrial rectifiers across India?

SG Power supplies industrial rectifiers across India, including remote plant sites, and to international markets. Standard ratings ship from ready stock, custom units are built and tested to order, and every unit comes with a test report, wiring diagram and operation manual.

Do you supply complete electroplating plants?

SG Power supplies complete electroplating plants as turnkey projects, from design to installation and maintenance, along with the IGBT rectifiers that power them. One supplier for the plant and its rectifiers makes planning, commissioning and service simpler. Share your process, parts and output to receive a proposal.

How do you maintain an industrial rectifier?

Maintain an industrial rectifier by keeping it cool, dry and clean. Clean the filters and fans of air cooled units, and check the oil level of oil cooled units. Tighten DC busbar joints, keep the unit away from tank fumes, and record voltage, current and ripple readings to spot faults early.

Rectifier Manufacturer in India | IGBT Rectifiers

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IGBT Rectifier

Five standard models from 500 A to 5,000 A at 12 V DC, air or oil cooled, with ripple below 2% and up to 40% power saving.

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Key Facts: SG Power Industrial Rectifiers

Manufacturer: SG Power Products Pvt. Ltd., Noida, Uttar Pradesh, India.

Products: IGBT industrial rectifiers, air cooled or oil cooled, in standard models from 500 A to 5,000 A.

Output: 0–12 V, 24 V, 48 V or 100 V DC (custom on request) at 100 A to 5,000 A or more, from a three phase 415 V, 50 Hz supply.

Ripple: below 2% for IGBT rectifiers (below 1% optional), with efficiency above 90% (up to 97%) and up to 40% power saving.

Duty: designed for 24x7 operation in rugged industrial environments, with microprocessor-based IGBT switching and a light, compact, modular design.

Applications: electroplating, hard chrome, anodizing, electrolysis, electroforming and PCB plating.

Price: on request; it depends on current rating, voltage, cooling and control options.

Supply: bulk and project supply across India and to international markets; 100% of units are tested before dispatch.

Turnkey plants: complete electroplating and rectifier plants, from design to installation and maintenance.

Sizing rule: rectifier current = largest load area (dm²) × current density (A/dm²), plus a 20 to 25% margin.

Certifications: ISO 9001:2015 certified organisation; RoHS certificate covering rectifiers; MSME and SSI registered.

Procurement Summary

Products, output, cooling, supply and certifications are listed in Key Facts above; these are the remaining buying details.

Item	Details
Control	Microprocessor-based IGBT switching; manual, semi-automatic or PLC operation; touch screen HMI, constant voltage and constant current modes, and programmable timer and ramp available as options
Standards	Named in the techno-commercial offer and the factory test report for your order
Documentation	Datasheet, test report, wiring diagram, operation manual
Payment terms	Production begins on receipt of 50% advance

Request Quotation Download Catalogue Talk to an Engineer

What Is an Industrial Rectifier?
Types of Industrial Rectifiers
Our Range of Industrial Rectifiers
Complete Electroplating Plants (Turnkey)
Industrial Rectifier Price in India
Technical Specifications
How to Select an Industrial Rectifier
Rectifier Maintenance and Care
Why Choose SG Power as Your Rectifier Manufacturer?
Rectifier Supplier Across India
SG Power Customer Ratings and Reviews
How to Choose a Rectifier Manufacturer or Supplier
Tender and BOQ Specification Text
Applications by Industry
Industrial Rectifier FAQs
Related Guides and Products
Request a Techno-Commercial Offer
Sources and References

What Is an Industrial Rectifier?

An industrial rectifier, also called a rectifier unit or AC-to-DC converter, is a power supply that turns AC mains into controlled DC. It delivers the low voltage and high current that electrochemical processes need. In an electroplating or anodizing tank, the DC current drives metal ions onto the part or builds the oxide layer, so the rectifier's stability decides coating thickness and finish.

An industrial rectifier does three jobs:

Converts AC to DC: IGBT power devices switch the rectified mains at high frequency, and a compact high-frequency transformer steps it down to the low DC voltage the process needs.

Controls the output: the operator sets current or voltage, and the rectifier holds it steady as the load in the tank changes.

Protects the process: built-in protection stops damage to the parts and to the rectifier itself. The protections fitted to your unit are listed in the techno-commercial offer.

Rectifier Terms Explained

A few technical terms appear on every rectifier datasheet and quote. Knowing them makes it easier to compare industrial rectifiers, read a rectifier manufacturer's specification and size a unit for your process. This table explains each term in one line.

Term	Meaning
IGBT	Insulated gate bipolar transistor, the fast power switch used in modern high-frequency rectifiers
SCR (thyristor)	The older power device used in mains-frequency rectifiers
Ripple	The small AC variation left on the DC output, shown as a percentage
Current density (A/dm²)	Current per square decimetre of plated area, used to size the rectifier
CC and CV	Constant current and constant voltage control modes
Duty cycle	How long the rectifier can run at rated current; 100% means continuous, 24x7 duty
Polarity reversal	Switching the DC output between positive and negative, manually or on a timer
HMI and PLC	The operator touch screen and the plant controller that can run the rectifier automatically

Types of Industrial Rectifiers

SG Power makes IGBT industrial rectifiers in two types by cooling: air cooled rectifiers and oil cooled rectifiers. IGBT (high-frequency switch mode) technology, the same principle as an SMPS, has replaced older SCR (thyristor) rectifiers in modern plating plants. The first table shows why, and the second compares the cooling types.

Feature	IGBT rectifier (SG Power)	Conventional SCR (thyristor) rectifier
How it works	Switches at high frequency through a small high-frequency transformer	Controls the mains-frequency waveform through a large 50 Hz transformer
Output ripple	Low, below 2% (below 1% optional)	Higher
Efficiency	Above 90%, up to 97%	Falls when running well below full load
Power saving	Up to 40%	None
Size and weight	Compact, light and modular	Larger and heavier

Cooling type	How it works	Best suited for
Air cooled	Fans draw air across the heat sinks	Clean, ventilated rooms and moderate ratings
Oil cooled	Transformer and power devices sit in an oil-filled tank	High ratings and corrosive, humid plating shops, where sealed units last longer

Our Range of Industrial Rectifiers

Our range of industrial rectifiers covers air cooled and oil cooled IGBT rectifiers from 500 A to 5,000 A or more. One rectifier manufacturer can therefore supply a whole plating line or process plant.

Product	What it is	Best suited for
IGBT rectifier, air cooled	High-frequency rectifier, 500 A to 1,000 A at 12 V (standard models)	Decorative and functional plating, PCB plating, anodizing, labs
IGBT rectifier, oil cooled	Sealed high-frequency rectifier, 1,500 A to 5,000 A at 12 V (standard models)	Hard chrome, high-current anodizing, electrolysis, hydrogen generation, and humid or corrosive plating shops
Custom-voltage IGBT rectifier	24, 48 or 100 V DC, current to your process	Anodizing, CED coating, electrolysis and electroforming

All units use microprocessor-based IGBT switching in a light, compact, modular design. Optional features include a touch screen HMI, constant current (CC) and constant voltage (CV) control, and programmable timers with ramp up/down. Also optional are USB or Ethernet data logging, an RS-485 / Modbus / PLC interface, fast polarity reversal and remote monitoring with IoT integration.

High-current rectifiers: as a high current rectifier manufacturer, we build oil cooled IGBT rectifiers for hard chrome, electrolysis and large anodizing lines. Standard units reach 5,000 A at 12 V, and higher currents are built to order.

IGBT Rectifier Models

Standard SG Power IGBT power rectifier models from our catalogue are below. Other voltages (24, 48 and 100 V DC) and currents are built to order.

Model	Output	Cooling	Dimensions (L × W × H)	Approximate weight
IGBT-12/500	12 V, 500 A	Air cooled	17 × 8 × 15 inches	45 kg
IGBT-12/1000	12 V, 1,000 A	Air cooled	21 × 10 × 18 inches	47 kg
IGBT-12/1500	12 V, 1,500 A	Oil cooled	21 × 23 × 27 inches	On request
12 V, 2,000 A oil cooled	12 V, 2,000 A	Oil cooled	34 × 48 × 46 inches	1,100 kg
IGBT-12/5000	12 V, 5,000 A	Oil cooled	70 × 53 × 54 inches	1,600 kg
12 V, 5,000 A oil cooled, dimmer controlled	12 V, 5,000 A	Oil cooled	50 × 67 × 49 inches	1,100 kg

Dimensions and weights are from the SG Power IGBT power rectifier catalogue. Confirm the exact model code and shipping weight in the techno-commercial offer.

Download the IGBT Power Rectifier catalogue (PDF)

For full model details, features and model selection, see our IGBT rectifier page.

Which Rectifier Should You Choose?

Use this quick guide to shortlist a rectifier for electroplating, anodizing or hard chrome, then confirm the rating with the selection guide below.

Your need	Recommended rectifier
Bright nickel, chrome or precious metal plating with a fine finish	IGBT rectifier (ripple below 1% option)
PCB, electronics or laboratory plating	IGBT rectifier, air cooled
Lowest power bill on a line that runs 24x7	IGBT rectifier (up to 40% power saving)
Very high current, such as hard chrome or electrolysis	IGBT rectifier, oil cooled (up to 5,000 A per unit)
Humid, acidic or corrosive plating shop	IGBT rectifier, oil cooled
Anodizing of aluminium	IGBT rectifier sized for the full anodizing voltage; pair with a colouring transformer for the colouring stage
Automated plating line	IGBT rectifier with PLC interface, RS-485 / Modbus and data logging

Complete Electroplating Plants (Turnkey)

Besides individual rectifiers, SG Power supplies complete electroplating plants as turnkey projects, from design to installation and maintenance. One supplier then takes responsibility for the rectifiers and the plant they power, which simplifies planning, commissioning and service for new plating lines and anodizing plants.

Design: the plant and its rectifiers are sized to your process, parts and output.

Installation and commissioning: our engineers install the plant and start it up on site.

Maintenance: support after commissioning keeps the line running.

Planning a new plating or anodizing line? Share your process and output, and we will propose a complete plant, including its scope.

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Industrial Rectifier Price in India

The industrial rectifier price in India depends on the current rating, voltage, control type and cooling, so SG Power quotes every rectifier on request. Share your process and tank load, and we will confirm the exact price, excluding GST, in our techno-commercial offer.

Product	Example rating	Price (excl. GST)
IGBT rectifier, air cooled	500 A, 0–12 V	Price on request
IGBT rectifier, air cooled	1,000 A, 0–12 V	Price on request
IGBT rectifier, oil cooled	1,500 A, 0–12 V	Price on request
IGBT rectifier, oil cooled	5,000 A, 0–12 V	Price on request

Prices are quoted exclusive of GST. * Prices are indicative. For the latest price, contact SG Power.

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Technical Specifications

SG Power IGBT industrial rectifiers deliver 0–12 V to 100 V DC at 100 A to 5,000 A or more from a three phase 415 V supply. They offer ripple below 2% (below 1% optional), efficiency above 90%, up to 40% power saving, and they are designed for 24x7 operation.

Parameter	SG Power IGBT rectifier
Input supply	Three phase 415 V AC, 50 Hz
DC output voltage	0–12 V, 24 V, 48 V or 100 V DC; custom voltages on request
DC output current	100 A to 5,000 A or more, as required
Output ripple	Below 2% (standard); below 1% (optional)
Efficiency	Above 90%, up to 97% depending on model
Power saving	Up to 40%
Control modes (optional)	Constant voltage and constant current controller (CVC and CCC)
Control and display	Microprocessor-based IGBT switching; manual, semi-automatic or automatic (PLC) operation; touch screen HMI optional
Programming (optional)	Programmable timer and ramp up/down
Data logging and communication	USB or Ethernet data logging; RS-485 / Modbus / PLC interface, remote monitoring and IoT integration (optional)
Cooling	Air cooled or oil cooled, based on rating
Duty cycle	Designed for 24x7 operation
Standards	Named in the techno-commercial offer and the factory test report for your order
Options	Fast polarity reversal, remote monitoring, IoT integration

Datasheets, wiring diagrams and general arrangement drawings are available on request. Features and specifications may change as the technology is improved.

How to Select an Industrial Rectifier

To select an industrial rectifier, calculate the current from the tank area and current density, add a 20 to 25% margin, match the process voltage, then choose air or oil cooling and the control options you need. Follow these six steps:

Find the current

Multiply the largest load area in the tank (dm²) by the process current density (A/dm²). For example, 50 dm² at 4 A/dm² needs 200 A.

Add a margin

Choose a rating about 20 to 25% above the calculated current, so the rectifier never runs at its limit. In the example, 200 A plus 25% is 250 A, so a 300 A unit fits.

Find the voltage

Take the process voltage and add the drop in cables and bus bars. Most plating runs at 6 to 12 V, hard chrome at 6 to 12 V, sulphuric anodizing at 15 to 24 V and hard anodizing higher. Confirm the values with your process supplier.

Choose the controls

Choose manual, semi-automatic or PLC operation, and add options such as fast polarity reversal, programmable timers or remote monitoring.

Choose the cooling

Use oil cooling in humid, acidic or corrosive shops, and air cooling in clean, ventilated rooms.

Check the supply and installation

Confirm the mains supply, keep DC cable runs short and sized for the current, earth the rectifier body to a proper earthing system, and place the rectifier away from tank fumes.

Our application engineers can size the rectifier for your tank load and process. We also supply servo voltage stabilizers for sites with unstable mains, and transformers for the plant supply.

Rectifier Maintenance and Care

Rectifier maintenance is mostly about keeping the unit cool, dry and clean, and its DC connections tight. Plating shops are humid and full of acid fumes, so a few routine checks protect the electronics, keep the output steady and extend the life of an industrial rectifier.

Check	Why it matters
Clean air filters, fans and heat sinks (air cooled units)	Blocked airflow makes the rectifier run hot
Check oil level and condition (oil cooled units)	The oil cools the transformer and power devices and keeps out moisture
Tighten DC busbar and cable joints	Loose joints heat up, waste power and cause voltage drop
Keep the rectifier away from tank fumes and moisture	Acid fumes corrode electronics and terminals
Check that the rectifier body is properly earthed	Protects people and equipment
Record voltage, current and ripple readings	Changes give early warning of a fault

Follow the operation manual supplied with the rectifier for detailed maintenance steps and intervals.

Why Choose SG Power as Your Rectifier Manufacturer?

Buying from a rectifier manufacturer in India, not a trader, gives you a unit built for your process, tested before dispatch and supported after commissioning. These are the reasons plating shops, OEMs and process plants choose SG Power.

Up to 40% power saving. IGBT switching keeps efficiency above 90% (up to 97%), so these energy-efficient rectifiers cut the power bill on lines that run 24x7.

Stable, low-ripple output. Ripple below 2% (below 1% optional) gives even coating thickness and fewer rejects.

Built for 24x7 duty. Rectifiers are designed for 24x7 operation in rugged industrial environments.

Air or oil cooling. Sealed oil cooled units for corrosive shops; air cooled units for clean rooms.

Custom ratings and controls. Current, voltage, polarity reversal, timers and PLC control are built to your line.

Tested before dispatch. SG Power tests 100% of its units, with a three-level quality check covering 173 checkpoints, and a test report comes with the unit.

After-sales and site support. Our engineers support installation and commissioning, and spare parts are held for repairs.

SG Power's rectifier clients include Uttarakhand Jal Sansthan, Nuclear Power Corporation of India Limited (NPCIL), Odisha Police and the Border Security Force (BSF), Nainital, among others, as listed on the client page of its IGBT power rectifier catalogue. SG Power has 5,937+ customers in 319+ cities and 89% customer retention. Learn more about SG Power.

Certifications, Approvals and Test Reports

Certification / approval	Details
Quality management	ISO 9001:2015 certified organisation
Product certification	RoHS certificate covering SG Power rectifiers
Quality checks	100% of units tested; three-level quality check with 173 checkpoints
Business registrations	Registered with MSME and SSI
Product standards	Named in the techno-commercial offer and the factory test report for your order

Our Satisfied Clients

Project Location - Karnataka

Power infrastructure project with advanced electrical solutions.

Project Location - Kanheri Hills

Defence sector electrical and protection systems.

Project Location - Hyderabad

Airport infrastructure and electrical safety solutions.

Project Location - Pune

Metro rail electrical installations and grounding systems.

Project Location - Ajmer

State electricity distribution network solutions.

Project Location - Jodhpur

Power distribution and earthing solutions.

Project Location - Bangalore, Noida

Heavy electrical and industrial power systems.

Project Location - Odisha

Steel industry electrical infrastructure solutions.

Project Location - Nashik, Chhattisgarh

Defence-grade electrical protection systems.

Project Location - Lucknow, Jabalpur

Telecom infrastructure and grounding systems.

Project Location - Ghaziabad

Government electronics and power systems.

Project Location - Sambalpur

Aluminium industry electrical safety solutions.

Project Location - Srinagar

Military-grade electrical infrastructure.

Project Location - Kerala

Railway electrification and protection systems.

Project Location - Rajasthan

Cement industry electrical solutions.

Project Location - Haryana

State power distribution infrastructure.

Project Location - Noida

Industrial electrical and safety systems.

Project Location - Khavda, Bikaner

Large-scale construction and power projects.

Project Location - Noida

Private electricity distribution systems.

Project Location - Chhattisgarh

Thermal power plant electrical solutions.

Project Location - Shahjahanpur

Power generation and infrastructure systems.

Project Location - Gurugram

Aviation electrical infrastructure solutions.

Project Location - Noida

Smart city electrical and infrastructure systems.

Rectifier Supplier Across India

SG Power is a rectifier supplier to plating shops, OEMs and process plants across India and in international markets, from industrial clusters in the north to auto-component hubs in the west and south.

Ready stock: standard ratings are often available from stock; the lead time is confirmed in our offer.

Built to order: custom ratings are built and tested to your specification.

Safe transport: units are packed and braced for road transport to any site.

As a rectifier supplier in Delhi NCR, we deliver quickly from Noida to Delhi, Ghaziabad, Gurugram and Faridabad. Our service network covers 127+ cities, including Roorkee, Rohtak, Mathura, Kanpur, Prayagraj, Ahmedabad, Rajkot, Pune, Aurangabad, Hyderabad, Bengaluru, Chennai, Coimbatore, Bhopal, Ranchi and Cuttack.

Rectifier Manufacturer in Noida and Delhi NCR

SG Power is a rectifier manufacturer and supplier with its office in Sector 62, Noida, and its factory in Ghaziabad. Plating and anodizing units in Noida, Greater Noida, Ghaziabad, Delhi, Faridabad and Gurugram get faster site visits, quicker delivery and easy factory inspection before dispatch.

Our engineers can visit your line to check tank loads and supply before we quote. If you searched for a “rectifier manufacturer in Delhi” or a “rectifier supplier near me” in NCR, call us to arrange a visit.

SG Power Products Pvt. Ltd.

17th Floor, L-17-1714B, The Iconic Corenthum, Plot No. A-41, Sector 62, Noida, Gautam Buddha Nagar, Uttar Pradesh 201309

Phone: +91-8800803930 · Email: enquiry@sgpower.co.in · Contact page

SG Power Customer Ratings and Reviews

Buyers rate SG Power 4.2 out of 5 on IndiaMART, from 132 ratings. On Google, its Noida office is rated 4.4 out of 5, from 78 reviews (both checked October 2026). These ratings cover all SG Power products, such as earthing products, lightning arresters and servo stabilizers, not rectifiers alone.

Source	Rating	Number of ratings
IndiaMART	4.2 out of 5	132
Google (Noida office)	4.4 out of 5	78

Read SG Power reviews on IndiaMART

How to Choose a Rectifier Manufacturer or Supplier

Choosing a rectifier manufacturer or supplier matters, because ripple, efficiency and build quality show up in every batch of parts and every power bill. Use these checks to compare rectifier manufacturers and suppliers.

What to check	Why it matters
Measured ripple at your operating current	High ripple causes dull, uneven or burnt deposits
Efficiency and power factor at part load	Rectifiers rarely run at full load; poor part-load efficiency wastes power
Continuous (100%) duty rating	Units rated for intermittent duty overheat on 24x7 lines
Cooling suited to your shop	Air cooled units corrode quickly in acidic, humid plating rooms
Protection: soft start, overload, over-temperature	Protects the parts, the tank and the rectifier
Factory load test report	Proves the rating before the unit reaches site
Manufacturer, not trader	Custom ratings, faster repairs and direct access to the designers
Spare parts and service support	Downtime on a plating line costs more than the rectifier
Process references	Shows the supplier understands plating, anodizing or electrolysis

Want to see how SG Power measures up? Request our datasheet and a sample test report and compare them against this checklist.

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Tender and BOQ Specification Text

Engineers and consultants can use this industrial rectifier specification text in tender documents and BOQs. Adjust the cooling, rating and options to the project, replacing the highlighted values with your own figures.

Supply, installation and commissioning of IGBT-based industrial rectifier, air / oil cooled, rated ———— A DC continuous at 0–———— V DC, input 415 V, three phase, 50 Hz, with output ripple not exceeding ——% at rated load, constant current and constant voltage modes, digital display of voltage and current, soft start, and protection against overload, over-temperature and phase failure, suitable for 100% continuous duty, designed to the standard named in the project specification. Factory load test report, wiring diagram and operation manual to be submitted with the supply. Make: SG Power or approved equivalent.

Commercial and Inspection Terms

Term	Details
GST	Prices are quoted exclusive of GST
Lead time	Confirmed in the techno-commercial offer
Freight	Ex-works Noida or delivered to site, as agreed in the offer
Payment terms	Production begins on receipt of 50% advance
Inspection	Factory acceptance test; client and third-party inspection can be arranged on request
Installation and commissioning	Scope confirmed in the techno-commercial offer
Documents	Datasheet, test report, wiring diagram, operation manual

Applications by Industry

Industrial rectifiers are used wherever a process needs steady, controlled DC at low voltage and high current.

Sector	Typical use	Suggested rectifier
Electroplating shops	Nickel, chrome, zinc (electrogalvanizing), copper, gold and other precious metal plating	IGBT rectifier, air or oil cooled
Auto components	Decorative chrome, hard chrome and zinc plating	IGBT rectifier, oil cooled
Aluminium extrusion and fabrication	Anodizing and colouring	Anodizing rectifier (IGBT), sized for anodizing voltage
Electronics	PCB plating, etching and electroforming	IGBT rectifier, air cooled
Paint shops	CED (electrophoretic) coating	IGBT rectifier, 100 V DC or custom
Chemical and process plants	Electrolysis, electrowinning and electrochemical processes	IGBT rectifier, oil cooled
Hydrogen and renewables	Hydrogen generation plants and test setups	IGBT rectifier, as per load
Metal finishing	Electropolishing and electroforming	IGBT rectifier with polarity reversal
Automated plating lines	Automation-integrated plating systems	IGBT rectifier with PLC interface and data logging
Laboratories and R&D	Small-scale plating and lab testing	IGBT rectifier, air cooled

For details on plating-specific features, see our electroplating rectifier page.

Industrial Rectifier FAQs

* Prices are indicative. For the latest price, contact SG Power.

Request a Techno-Commercial Offer

Send us your requirement and our engineers will recommend the right industrial rectifier, then share a techno-commercial offer. To speed up your quote, include:

Process (plating type, anodizing, electrolysis or other)
Tank load area or required current, and process voltage
Preferred cooling (air or oil), if known
Input supply available at site
Control needs (manual, PLC, polarity reversal, timers) and delivery schedule

Work directly with an experienced industrial rectifier manufacturer and supplier.

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Sources and References

The technical details on this page come from SG Power's product catalogue and the IGBT power rectifier catalogue, both checked in October 2026. Features and specifications may change as the technology is improved, so confirm the final values in our techno-commercial offer.

SG Power Products Pvt. Ltd., product catalogue (February 2026): IGBT power rectifier specifications, models, applications and company figures
SG Power IGBT power rectifier catalogue (PDF)

Industrial Rectifier Manufacturer & Supplier in India

Explore the Range