Choosing the best RECD supplier for DG sets requires more than finding a company that uses the words “CPCB approved” in its marketing. A proper comparison should consider the exact RECD model, engine application, documented testing or Type Approval information, installation capability, product performance, warranty and after-sales support.
CPCB publishes information on manufacturers certified for Retrofit Emission Control Devices applicable to diesel genset engines up to 800 kW. Its currently published manufacturer list identifies companies along with applicable engine-power ranges, Phase I/Phase II applicability and certification agencies. The published list is dated May 9, 2025, so buyers making a 2026 procurement decision should also check CPCB for any newer official update. It is also important to clarify that this article is not an official CPCB ranking. “Best” depends on the particular generator and project requirements. The suppliers discussed below are useful companies to compare based on publicly available product, manufacturing and certification information.
What Does “CPCB Approved RECD” Actually Mean?
CPCB's published RECD procedure establishes the framework for emission-compliance testing and Type Approval of retrofit emission-control devices for applicable diesel power-generating-set engines. The procedure also addresses Conformity of Production and durability requirements. The procedure should not be simplified into the idea that any product carrying a “CPCB approved” label is suitable for every diesel generator.
The buyer should establish the exact RECD model, the applicable engine range, the relevant testing or Type Approval information and the conditions under which the product was evaluated. This makes product-specific verification more important than a general supplier claim.
ACEGET PRIVATE LIMITED
Aceget is a Noida-based manufacturer of RECD and Dual Fuel Kit solutions for diesel generators. Its official website states that its RECD products are designed and manufactured at its Noida facility, with a factory at Sector 65, Noida. The company also provides technical and field support and has a Delhi office for sales and installation services.
Aceget's certification page currently lists Type Approval ranges of approximately 15.03–119 kW, 110.7–250 kW and 300.3–797 kW.
Its RECD product range includes different DG capacities, and model-specific pages provide information such as application, rating, housing material, regeneration, warranty, delivery and stated emission-reduction performance. For example, the published 500 kVA/400 kW model is identified as APL/QUANTUM/005 and lists automatic/passive regeneration, stainless-steel construction, one-year standard warranty and on-site service.
For customers in North India and especially Delhi-NCR, the combination of Noida manufacturing and Delhi technical support can be useful when site inspection and installation are required.
For more information Contact:
🌐 https://aceget.in/
📧 [email protected]
📞 Sales Enquiries: +91 767 847 8710

Automoto Genset Solutions LLP
Automoto Genset Solutions is another manufacturer listed by CPCB for several RECD application ranges. CPCB's published list identifies Automoto across multiple engine-power bands, including approximately 40.81–154 kW, 110.2–242.7 kW, 154–454 kW and 500.3–797 kW, with separate Phase I and Phase II entries and ICAT identified as the certification agency for the listed applications.
The company also operates in the Delhi-NCR region and publishes information about its RECD product range. For a buyer, the important step is to establish which exact Automoto model is proposed for the generator and whether the relevant documentation corresponds to that application.
Why Engine Compatibility Should Decide the Shortlist
A generator should be evaluated using its actual engine details before the supplier is selected. The engine manufacturer, exact engine model, gross mechanical power, rated speed and DG rating should be provided to the shortlisted companies. CPCB's RECD framework is application-specific. Its published manufacturer list contains different ranges for different manufacturers and distinguishes between Phase I and Phase II engines.
This means a product suitable for one 200 kW-class engine should not automatically be assumed appropriate for another engine simply because both generators have similar commercial ratings. A technically responsible supplier should therefore ask questions before confirming the product.
Compare Documentation Alongside Performance
A good supplier comparison should look beyond headline emission-reduction percentages. The buyer should examine the exact model, supporting test information, application range and relevant Type Approval documentation. CPCB's procedure addresses technical evaluation and durability, including PM-related performance, regeneration characteristics and exhaust back pressure. It also requires durability testing of the RECD and engine combination within the declared application range.
This is useful because performance should be connected to the actual product and engine configuration rather than presented as a universal result. For example, Aceget publishes model-specific performance information on its product pages rather than relying only on a generic company-level figure.
Installation Is Part of the Supplier's Value
The best supplier is not necessarily the company with the highest specification sheet. Installation capability can have an equally important effect on project success. The supplier should be prepared to review the existing exhaust arrangement, mounting requirements and available maintenance space. The quotation should clearly identify whether site inspection, fabrication, installation and commissioning are included.
CPCB's RECD procedure includes exhaust back pressure among its technical considerations, making exhaust integration an important engineering issue. For industrial facilities, it is useful to select a supplier that can remain involved from technical assessment through commissioning.
Warranty and Service Can Separate Similar Products
Two suppliers may offer apparently similar RECD products but provide very different after-sales arrangements. Before selecting one, review the warranty duration, covered components, service response, spare-parts availability and preventive-maintenance arrangements.
Aceget's published product information, for example, lists one-year standard warranty and on-site service for several model-specific products. These terms are model-specific and should always be confirmed in the purchase quotation. A facility operating critical backup generators should consider long-term service availability rather than choosing only on initial equipment price.
What About RECD Price?
There is no single price that can reasonably be applied to every DG set. The total cost can include the RECD, transportation, fabrication, installation, commissioning and future service. A low equipment quotation can become more expensive if the supplier excludes fabrication, site work or commissioning. A higher quotation may represent a more complete turnkey scope.
For this reason, suppliers should be compared using the complete installed project cost rather than the equipment line alone.
Online Procurement Needs the Same Verification
Online enquiries can make it easier to contact manufacturers and compare products. However, buyers should not treat RECD procurement like a standard online purchase. When you buy RECD for generators online, provide the engine details first and ask the supplier to identify the exact model being recommended.
Before making payment, review the technical datasheet, application range, relevant testing or Type Approval documentation, installation scope and warranty. The convenience of online purchasing should reduce procurement effort, not technical due diligence.
CPCB Compliance Requires Current Verification
The official CPCB procedure provides the framework for applicable RECD testing and Type Approval. CPCB's published manufacturer list also provides useful information on certified manufacturers, documented power ranges, Phase applicability and certification agencies.
However, neither source should be interpreted as a universal endorsement of one company or every product offered by a listed manufacturer. For a 2026 project, buyers should check CPCB's latest official publications and verify the current requirements applicable to the particular DG installation. Depending on the location, additional State/UT or other competent-authority requirements may also need to be considered.
A product's Type Approval status should also not automatically be described as proof that the entire site is compliant.
A Better Way to Compare Suppliers
Consider a facility with three DG sets using different engines. Instead of selecting one supplier based on brand reputation, the facility can provide all three engine details to several manufacturers and request DG-wise recommendations. The resulting proposals can then be compared on product applicability, supporting documentation, installation, delivery, warranty, maintenance and total cost.
This approach avoids one of the most common procurement mistakes: assuming that one RECD model should be used across an entire generator fleet.
Frequently Asked Questions
Which are the best RECD suppliers for DG sets in India?
There is no official CPCB ranking of the “best” supplier. Aceget, Automoto Genset Solutions and Chakr Innovation are among the manufacturers listed in CPCB's published information for specified RECD application ranges.
How do I know which RECD is right for my DG?
Provide the manufacturer with the exact engine model, gross mechanical power and other relevant DG information. The supplier should then identify the exact RECD model and documented application.
Is CPCB-listed manufacturer status enough to select a supplier?
No. The exact RECD model, application, relevant testing or Type Approval documentation, installation and support should also be evaluated.
Should I select the lowest-priced RECD?
Not necessarily. Compare the complete installed project cost, including fabrication, installation, commissioning, warranty and service.
Can I buy an RECD online?
Yes, online enquiries and purchases can simplify procurement. However, technical compatibility and product documentation should be verified before payment and installation.
Conclusion
The search for the “best” RECD supplier should ultimately be a search for the best fit for the particular generator. Aceget and Automoto Genset Solutions are two companies that buyers can include in a technical comparison based on CPCB's published manufacturer information and their publicly available product and manufacturing information. Aceget provides RECD products across multiple published DG applications and states that its systems are manufactured at its Noida facility, with technical and installation support available. In RECD procurement, “best” is not simply the supplier with the strongest advertisement—it is the supplier whose documented product fits your generator and remains supportable throughout its operating life.