Established in the year 2000, we Kirti Stampings are one of the counted amongst the leading manufacturers, exporters and suppliers of a wide range of transformer lamination, CRGO & CRNGO electrical lamination for transformers and toroidal transformer core. In addition, we also provide cut to size lamination as per clients’ requirement. These are catering to the requirements of diverse industries such as automobiles, constructions, defense and engineering related industries.
Our range is manufactured using state-of-the-art machines such as fleet sharing machine, power presses, EOT cranes and core loss testing machine. With the help of these machines, we are able to supply cut to size laminations in M4, (0.27 mm thickness) M5, (0.30 mm) M6, (0.35 mm.) and 6 0 M.T. CRGO transformer lamination per month as per clients requirement. Today, our constancy in delivering quality laminations has given us many quality conscious clients in domestic as well as international markets. Further our competence to deliver the range in all specifications & sizes has also helped us to strengthen our position amongst the other competitors in the industry.
Our business operations are being led by our founder Mr. Shiv Kumar Singh, who has a vast industry experience and expertise in the domain. The assistance provided by experienced team allows us to deliver electrical laminations in both standard and customized specifications.
Product Portfolio
We are engaged in manufacturing and exporting of a wide range of CRGO & CRNGO electrical lamination for transformers. These are manufactured using superior quality raw material, and are inspected at each stage of production by our team of quality managers.
Our range is mentioned below:
CRNGO Electrical Lamination for Transformers
CRGO Electrical Lamination for Transformers
Toroidal Transformer Core
Salient features
Application specific design
Corrosion resistance
Dimensionally accurate
Impact resistance
Long working life
Superior performance
High efficiency
Trouble free operation
These are available in various range, thicknesses, cuts and sizes as per the clients’ specific requirements.
Transformer Lamination
Transformers are manufactured from various grades of CRGO steel. As transformer lamination is done in accordance with clients’ specifications, the whole process is carried out in one section only so that flexibility and control can be achieved. Lamination in various shades and sizes is slit and cut in requisite exact geometrical shapes with 90 degree and 45 degree cutting systems by making use of various machines throughout the process.
First, the slitting machine is used to slit the CRGO; in this method minimizing the burrs is very important phase. Then shearing angle is checked for a perfect match at the edges during initial setting for this purpose shearing machine is used. After this, the materials are hole punched and 'V' notched using the power press. At this point, the material develops residual stresses because of the sensitivity. In order to remove stresses, the CRNGO laminations are taken to the Roller Hearth Annealing Furnace, which prevents any probable distortion, shortens the cycle time and ensures that insulation is sustained even at high temperatures.
In the end, it is meticulously checked for technical details and dimensions by experts and forwarded to packing department. Further, in our packaging unit, the finished products are properly packed in wooden pallets according to its size and a full description of the material including technical details is attached with the pallet and then dispatched to the respective client.
Our Infrastructure
We are well equipped with modern infrastructure a facility, which assists us in producing quality CRGO & CRNGO electrical lamination for transformers. The manufacturing expertise of our workforce allows us to offer our range in different grades and thicknesses. Our better management of the production processes, reduction in wastage and improving overall efficiency of operations has enabled us to achieve production capacity of 1500 M.T. per annum.
Details of our plant and machinery are mentioned below: Plant:
We have sufficient 15000 Sq. Feet working space, details are as under:
Shed of 3000 Sq. Feet 2 Nos.
Shed of 2000 Sq. Feet 1 Nos.
Shed of 1200 Sq. Feet 2 Nos.
Shed of 1000 Sq. Feet 1 Nos.
Office of 1000 Sq. Feet 1 Nos.
Workers Room 10 Nos.
Store Room 1 Nos.
List of Machineries:
Sr. No.
Name of Machines
No of Machines
1
Slitting Line
3 Nos.
2
6 Feet sharing Machine
2 Nos.
3
5 Feet sharing Machine
2 Nos.
4
4 Feet sharing machine
2 Nos.
5
3 Feet sharing Machine
2 Nos.
6
2 Feet sharing Machine
25 Nos.
7
60 MT Power Press
1 Nos.
8
20 MT Power Press
1 Nos.
9
10 MT Power Press
1 Nos.
10
50 MT Core Punching Power Press
1 Nos.
11
5 MT Power Press
2 Nos.
12
Weighing Machine – Cap 2 MT
1 Nos.
13
Weighing Machine – Cap 300 KG
2 Nos.
14
Core Loss Testing Machine
1 Nos.
15
Box furnace
2 Nos.
16
EOT Crane – Cap 5 MT
1 Nos.
17
Core Punching Press 2 MT
1 Nos.
18
Electrical Hearth Roller Furnace
1 Nos.
List of Men Power:
Sr. No.
Description
No of Person
1
Engineer
2 Person
2
Supervisor
5 Persons
3
Technical Worker
35 Persons
4
Skilled Helper
15 Persons
5
Unskilled Helper
25 Persons
Quality Assurance Plan
Our company is committed towards providing quality range as per clients’ specific requirements. We conduct various measures to ensure the quality of incoming and outgoing materials till up to finished lamination and their packaging. Our experts also make sure that all the measuring instruments used for quality checks are approved by the Govt. recognized Agency to ensure precision and accuracy.
Our quality testing processes are mentioned below:
Raw material testing:
All the incoming raw materials are inspected with the following tests and are used in the production process only if they pass through all the tests. The tests are mentioned below:
Stacking factor test
Insulation resistivity test
Core loss test
The acceptance norms for above tests are mentioned below:
Sr.#
Test
Acceptance Norms
1
Stacking factor test as per JIS C 2550 Std. (Apparatus Available)
As Per Diff. Grade 0.23 – 94.5% 0.27 – 95.0% 0.30 – 95.5% 0.35 – 96.0%
2
Resistivity Test as per ASTIM – 717 by Franklien Test Method.(Apparatus Available)
> 20 m h O -CM ² / LAMI.
3
Core Loss Test (By Single Strip Test Method)
W/kg. At 1.5 T And 1.7 T For Diff. Grades From Coils/sheet (At start and end of the coil)
Lamination testing:
During lamination processing, our experts conducts stringent checking in manufacturing process at regular half-hour intervals on every machine and the record is maintained separately. The lamination are checked for edge burrs width, camber, thickness, stack thickness and wave factor, which are in accordance with the specific least measurement done by various measuring devices.
The acceptance norms for lamination on various parameters are as follows:
We are committed for customer satisfaction by fulfilling their needs in changing market scenario and supplying them product of consistent quality with timely delivery. We conduct following attributes:
This is to be achieved by following actions:
Continuity improves the effectiveness of Quality Management System
Controlling cost by effective use of all resources
Innovations in processes to improve quality
Motivating employees
Research & Development
We believe that novelty is the stamp of superiority and to authenticate the fact, we have a separate research and development department where in our professionals conduct extensive research for designing innovative and advanced range of products.
To provide effective fabrication services, it is necessary to employ new machines and equipment as per the international quality standards. Our researchers find out novel designs in order to satisfy the technically advanced requirements of our clients and also perform market surveys to understand the changing needs of the market.
Client Satisfaction
Being a customer oriented group, all our endeavors are directed towards providing outstanding quality CRGO & CRNGO electrical lamination for transformers to our clients. Keeping this in mind, we offer our clients with customization regarding the manufacturing of our range. Our sole objective is to serve potential clients from around the globe and duly meet their needs and requirements in least possible time.
Our highly cost effective products and novel technological methods have enabled us to garner vast clientele.
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