Darshal Engineering Works, Vadodara, Gujarat, India

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About Us

DARSHAL ENGINEERING WORKS is manufacturing Transformer Radiators since 2003 catering the need of transformer industries as on OEM. Radiators manufactured by us are used for Power & Distribution Transformers.

DEW is located in Por-GIDC area near Vadodara on national highway No.8. Our unit is spread in 5200 Sq.Mts area and is well connected by approach road from both the side.[The industrial area is surrounded with various medium & large size engineering units.]

Designed to perfection, our range of radiators has received an overwhelming response from clients based in India. Further, maintaining consistency in our quality standards, meeting consignment deadlines and following ethical business practices have also helped us to reach a reputable position in this highly competitive industry.

We have carved a niche for ourselves in this domain pertaining to an extensive 20 years of experience of our mentor Mr. Sanjay Patel. It is owing to his able guidance and inspiration throughout the years that has helped us to keep pace with the fast-changing trends of market.

Width,Size And Configuration

1. Radiator element having width of 520/ 380/ 300/ 240 mm using CRCA steel of 'D' gread having 1.0/ 1.2mm thickness as per custormer's requirement.

2. Centre distance between top and bottom header pipe (C.C.) shall be minimum 300mm and maximum 3000mm is steps of 100mm.

3. Radiator elements are welded in position with bracing straps of eighter round bright bars of 8 to 10mm dia or M.S. flats of 25*6mm size.

4. Pitch range is 75mm and 50mm in general. We can provide 40mm pitch on the specific requirement of the customer.

5. Radiators manufactured by us can be provided with minimum 35 elements.

6. The header pipe thickness shall be 2 mm minimum and having outside diameter of 50/60/76/90mm as may be the requirement.

Raw Materials

C.R.C.A. coils, H.R./C.R. tubes, M.S. flats & sheets, Paints & thinner etc. are used as main raw materials for radiators.

Accessories

M.S. Square flanges, Air / Drain piug, Lifting hook with pads, anti vibration flat etc. are the main accessories.

Small size radiators for D.T.

we can also manufacture small size radiators for distribution transformers in the rating of 10KVA. Minimum length & width shall be 300mm.

Surface Treatmant

Individual fins are passed through automatic shot blasting machine to remove oil traces & residual rust particles to avoid contamination. Blasting gives required profile for paint adhesion.

Testing

Each radiator is pressure tested to asertain leankages in the water tank at pressure of 2.0 Kg/Cm2 for a period of 30 minutes. Any leakages during testing have been attended eighter by welding or brasing as may be the case.

Painting Procedure

All the radiators are coated with insulating varnish conforming to IS-350, class 'A' from inside and red-oxide zinc-phosphate primer confirming to IS-2074 from outside haviing 35 micron thickness minimum. Final paints can be provided as per IS-5 / RAL shade as per customer's requirement.

In addition to the regular painting system of enemal and two pack spray painting intermediate coat of MIO, special polyurethane painted radiators are offered on regular basis as per the requirement of the customers.

Hot zinc spray galvanizes, Hot-dip galvanized and stainless steel radiators are also painted as required.

Radiators are available with spray painting system & flood painting system. Facility of air less spray painting system is also available.

Inspection Procedure

Individual rediator element dimension checked before assembly and final dimensional check of finish radiator carried out as per customer's G.A. drawing.

Individual base coat & top-coat paint thickness measured in paint procedur. Peal-off test as per ASTM-335983 is performed on every radiators. In case of similer batch, we take the test on random.

Marking and Packing

End plate of each radiator shall be embossed with 'DEW' logo and punched with customer reference Sr. No of manufacturer. Radiators are suitably packed in a wooden crate and strapped with M.S. strip. All crates are marked with customer's name.

Infrastructure

Located at Por - GIDC (Near Vadodara) on national highway no. 8, we have developed a state-of-the-art infrastructure. The infrastructure is set up over an area of 5,200 square feet and is well connected with roads from both sides. It is segregated into departments like manufacturing, quality checking and research & development unit. Our manufacturing plant is spread across an area of 2000 square feet and has an installed capacity of 2000 units. Equipped with requisite machinery and tools, we are able to manufacture a range of radiators for transformers that is in line with international quality standards. Our team of production engineers also take care of the entire production process to ensure complete utilization of available resources.

Machineries

Following are some of the machines, which we have, stationed at our production unit:

Roll forming machine with shearing line
Dual seam welding machine
Multi spot welding machine
Mig welding machines
Power presses with dies
Shot blasting machine

Our Team of Professionals

We have employed a team of professionals who have vast industrial experience in their respective domain. They work in close collaboration with each other to ensure smooth production of our wide range of radiators for transformers. Our professionals are well aware of their responsibilities and execute their tasks with utmost perfection and devotion. Their efforts have immensely helped us in increasing our manufacturing process and market value.

We have the following professionals working with us:

Engineers
Technicians
Quality controllers
Research analysts
Marketing representatives
Managers
Administrators

We also hold workshops and training sessions for our team members to make them aware of latest technologies prevalent in the industry.

Quality Assurance

Quality accomplishment is the main aspect of our product division and hence we ensure that the requisite quality standard is followed at each production stage. We are backed by a team of quality auditors who ascertain quality checks right from procurement of the raw material until the final dispatch of the consignments. We are manufacturig radiators as per IEEMA STANDARD.

We also conduct stringent quality tests on our range of radiators prior to their dispatch. Each raditor is pressure tested to asertain leakages in the water tank at a pressure of 2.0 Kg/Cm2 for a period of 30 minutes. Any leakages observed during testing have been attented eighter by welding or brazing as may be the case. All this has helped us in offering an innovative range of radiators for transformers as specified by the customers.

Our quality-controlled measures are performed in the following stages:

Stage 1: We inspect the raw material at the manufacturer’s premises to gauge its suitability for the production
Stage 2: We inspect the production closely to exclude the products that do not meet the specific requirements
Stage 3: We conduct the visual inspection of our finished output before dispatching it to the clients .These tests are conducted by using sophisticated electronic testing machines which ensure accurate results

Research and Development

To carve niche for ourselves in this domain, we have engaged ourselves in continuous research and development activities. These activities have become a primary aspect of the design and production of our range of radiators. For this, we possess a well-organized research and development wing, which is managed and supervised by a team of researchers who have in-depth knowledge in this domain. They try to find out effective methods and technology to improvise our existing range of radiators.

Below mentioned are some of the guiding principles that are followed by our R&D team:

Understanding and fulfilling customers requirements
Obtaining the performance and effectiveness
Continual improvement of our range of radiators

Client Satisfaction

Client satisfaction is our primary goal and since our inception, we have always focused on it. We have with us state of the art infrastructure that is equipped with hi-tech machinery to produce precision-engineered range of radiators. Further, our team of diligent quality auditors conducts several tests before supplying our range of radiators to our clients.

Furthermore, owing to our ethical business policies and transparency in business dealings, we have earned the trust and respect of our esteemed clients. This has also helped us in working with some of the most reputed companies based in India and abrod.

Our Strengths

We are able to set new benchmarks for our competitors owing to the following reasons:

Quality range of radiators for transformers
Highly qualified and experienced staff at all operating levels
Use of high quality machinery
Competitive pricing
Timely delivery against orders

Profile

--- What We Offer ---