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Bethany Daniels
5 years ago
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1 ZAR SPRING MFG CO

Background 2 Zar Spring Manufacturing Company was established in 1964, starting its operation under the

Zar began Manufacturing leaf springs for heavy and light duty vehicles with an annual capacity of 15000

The corresponding know-how was acquired from famous German companies.

2 Background 2 Zar Spring Manufacturing Company was established in 1964, starting its operation under the license of Bruninghaus, a famous German firm. Zar began Manufacturing leaf springs for heavy and light duty vehicles with an annual capacity of tons. Since 1998 Zar has been producing parabolic spring in the fullyautomated production lines. The corresponding know-how was acquired from famous German companies. Currently Zar produces various types of parabolic springs with the annual capacity of 3000 tons. At present, Zar Spring Mfg Co. is highly graded among the few top spring manufacturers of the Middle East. 3

3 4 5 Products Currently Zar produces more than 2500 kinds of spring bars, coil springs, etc. Moreover, Zar produces many types of complete leaf and parabolic spring sets for different vehicles as well as railway clips.

6 The company s products are used in many types of

Group and supplies its products to about fifteen leading

Mortors, Volvo, Iveco, Nissan, Peugeot, Mazda, etc.

4 6 The company s products are used in many types of vehicles, including passenger cars, vans, pickups, buses, trucks and trailers. At present, Zar is a member of Automotive MFG. Group and supplies its products to about fifteen leading automotive manufacturers which are under license of Kia Mortors, Volvo, Iveco, Nissan, Peugeot, Mazda, etc. Additionally, Zar exports its products to more than 20 countries around the world. (more than 2000 tons per year) 7

Certificates Enjoying highly experienced

for the tight control of the raw material,

5 Certificates Enjoying highly experienced staff and modern technology, the company has managed to obtain the ISO 9001, ISO/TS/16949, ISO 14001, ohsas 18001, Quality Control Modern machineries, highly automated production lines, up-todate mechanical, metallurgical and chemical testing facilities are engaged for the tight control of the raw material, manufacturing of the products and controlling the production processes.

10 Design, Engineering and Construction According to the specifications being raised by the clients, the sample products are manufactured and sent to the customer for final approval; in case the

To guarantee the high quality of the products, careful studies are carried out to assure supplying the raw material from the most qualified steel manufacturers of the world.

6 10 Design, Engineering and Construction According to the specifications being raised by the clients, the sample products are manufactured and sent to the customer for final approval; in case the customers criteria are met the item shall be produced in quantity. To guarantee the high quality of the products, careful studies are carried out to assure supplying the raw material from the most qualified steel manufacturers of the world. 11 Customers orders are transferred to the Engineering Department, where the optimum production procedures are decided upon based on the results derived from careful study and analysis of the ordered items. Manufacturing drawings are prepared by means of advanced designing software and then sent to the corresponding departments namely Production Department.

12 Heat treatment section At this stage the spring leaves are heated up to 900 heat treatment and then pressed to the required forms and curves.

7 Production Process Leaf spring preparing section Being approved by the Quality Control Dept. the raw material will be conveyed to the production lines to be cut into the right shapes and sizes utilizing different cutting, forming, taper rolling, punching, trimming. 12 Heat treatment section At this stage the spring leaves are heated up to 900 heat treatment and then pressed to the required forms and curves. The springs thus formed are then cooled down in an oil bath, then they will be conveyed to the tempering furnace for adjusting their hardness. The produced leaves are then shot blasted prior to be transferred to the assembly lines. 13 Assembly section The leaf spring stes are assembled at assembly tables and sent for the final operation. The products are then tested according to the required specifications, and after obtaining the final approval of Quality Control Dept. single leaf and parabolic springs painted and dispatched to the warehouses. Torsion Bar The process for manufacturing torsion bars includes cutting, heating, upsetting, machining, rack rolling, induction hardening, presetting, shot peening, and washing, then they will be painted by paint powder technique. Stabilizer Bar The manufacturing process for stabilizer bars includes cutting steel bars, machining, heating, forming, and cooling by oil bath then the parts are conveyed to tempering furnaces for adjusting hardness. After tempering the process includes shot peening, straightening,crack test by magnetic particle method washing then they will be painted by paint powder technique.

8 14 15 I AI AI A S AU O A TO AU UTO O O O O RO O RO RO O O RO G O R G I I I I S P A TO TO T T T O O O U

9 Address: Km15 Fath Road Tehran-IRAN Tel: Fax: