tyre retreading industry
DESCRIPTION
Website: www.gmwpl.com Gemeni Machine Works Private Limited an associate of Gemeni Fabricators commenced its operations in the year 1985 with an objective to fabricate top class machinery. Today Gemeni Machine Works Private Limited is one of the leading manufacturers of tire retreading machines in the market. Gemeni Machine Works Private Limited has exported to countries such as Italy, U.A.E, Saudi Arabia, Madagascar, Fiji, Nigeria, Uganda, Kenya, Ghana, Nepal, Mauritius, Yemen, Sri Lanka, Bangladesh and Egypt.TRANSCRIPT
GEMENI MACHINE WORKS PVT LTD
359 BALAJI NAGAR, SINGANALLUR, COIMBATORE- 641005WEBSITE: www.gmwpl.com
TYRE RETREADING INDUSTRYOVERVIEW
• Retreading is safe, efficient and environmental friendly• Retreading a tyre costs only one third of the cost of the new tire• A new tire consumes nearly 22 gallons of oil whereas the
retreaded tire consumes only 7 gallons of oil. Most of the oil is found in the tire casing. A fleet on an average which consumes 50 tires/ year can save around 750 gallons of oil a year.
• Retreading one tire saves 20 liters of crude oil• Retreaded tire provides nearly 80% of the mileage of the new tire• The retreading market in India is approximately $1 billion (Rs. 6000
crores).
Website: www.gmwpl.com
Gemeni Machine Works (GMW)• GMW commenced in the year 1985 with an objective to fabricate
top class machinery.• GMW has manufactured, installed and commissioned 350 tyre
retreading plants globally• GMW has exported to 15 countries• GMW has 3 decades of experience in the Tyre retreading machinery
manufacturing industry• GMW provide details of design and plant layout options and
customize the plant according to the requirements of the customer• GMW is a single source manufacturer and supplier to the tyre
retreading industry
Website: www.gmwpl.com
MACHINES & ACCESSORIES MANUFACTURED BY GMW
• Electric Curing Chamber• Tyre Buffer• Tread builder• Inspection Spreader• Cyclone Filter• Cement Churner• Envelope Expander• Curing Rims• Bead seal plate• Expandable rims & hub
Website: www.gmwpl.com
ELECTRIC CURING CHAMBER
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ELECTRIC CURING CHAMBER FOR LCV
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TYRE BUFFER
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Tread Builder Tyre Buffer
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TYRE EXPO-CHENNAI 2013
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RAW MATERIALS & CONSUMABLES REQUIRED FOR TYRE RETREADING
• Tread Rubber• Cushion Gum• Envelope• Black Vulcanizing Cement• Curing bag• Flap
Website: www.gmwpl.com
RAW MATERIALS,CONSUMABLES & ACCESSORIES
TREAD RUBBER CUSHION GUMCURING BAG
ENVELOPEEXPANDABLE RIM CURING RIMS
Website: www.gmwpl.com
TOOLS REQUIRED FOR TYRE RETREADING
• Carbide Rasp• Hand Tools• Buffing Blade• Brushes• Tyre Repair knives
Website: www.gmwpl.com
TOOLS
CARBIDE RASP TYRE REPAIR KNIVES BUFFING BLADE
BRUSH www.gmwpl.com
TYRE RETREADING MACHINE EXPORTED BY GEMENI MACHINE WORKS TO THE
FOLLOWING COUNTRIES
• Egypt
• UAE• Oman• Yemen• Ghana• Nigeria• Uganda• Kenya
•Madagascar•Mauritius•Fiji•Nepal•Bangladesh•Sri Lanka•Italy
Website: www.gmwpl.com
TYRE RETREADING PROCESS
1. INITIAL INSPECTION: The initial inspection is done to evaluate the casing. The first and important step in the process of retreading is the detailed inspection of casing. This step guarantees that the casing is intact and in good condition. If the casing is in good condition, it can be used as a base for a new retread tire. Therefore it must be ensured, there are no injuries which might reduce the safety or performance of the retreaded tire.
Website: www.gmwpl.com
TYRE RETREADING PROCESS
2. TYRE REPAIR: This step is performed to remove all injuries
identified during initial inspection and replace the material with structurally sound materials which will give new life to the casing
3. BUFFING: The primary objective of buffing is to remove
the worn out tread and prepare the surface for a new tread.
Website: www.gmwpl.com
TYRE RETREADING PROCESS
4. SKIVING & RASPING: Skiving is performed to remove the loose rubber, ply and injury on the surface after the buffing operation. The skived surface should be made rough by rasping.
Website: www.gmwpl.com
TYRE RETREADING PROCESS
5. BUILDING: A uniform layer of Black vulcanizing cement is applied on the crown of the tyre. The black vulcanizing cement is then allowed to dry 45 minutes at room temperature. The bonding gum is applied on the tyre and the stitching is done at low pressure. The tread rubber is applied on the bonding gum and the stitching is done at low pressure once and high pressure twice.
Website: www.gmwpl.com
TYRE RETREADING PROCESS
6. ENEVELOPING: In the tyre retreading process, the uncured cushion gum compound has to vulcanize while the pre-cured tread rubber has to be kept in position. Therefore the tire is placed into an envelope which presses the precured tread uniformly on the cushion gum and the casing
Website: www.gmwpl.com
TYRE RETREADING PROCESS
7. APPLICATION OF CURING BAG, FLAP AND CURING RIM:
The correct size of curing bag and flap is inserted into the tyre according to the tyre size. The purpose of the curing bag is to inflate the tyre during the curing process. The purpose of the flap is to increase the life of the curing bag, so that the flap absorbs the heat during the curing process. Without the flap the curing bag comes in contact with the heat which weakens the curing bag. The curing rim is then mounted on the tyre and the safety pin is locked.
Website: www.gmwpl.com
TYRE RETREADING PROCESS
8. CURING: Electric Curing chamber is an autoclave type device that applies specified heat and pressure over a period of time which causes the bonding layer in the built tire to cure and permanently adheres the new pre-cured tread to the prepared casing.
9. FINAL INSPECTION: The final inspection is done to ensure that the quality of the retreaded tyre is good.
Website: www.gmwpl.com
INSTALLATION & TRAINING
• We manufacture the machinery, install the machinery and provide training to the operators to run the tyre retreading plant
• We provide complete support right from installation, commissioning of the plant and training of the operators in running the tyre retreading plant. We have a very good team of service engineers who will take care of the installation, commissioning and training of the operators.
Website: www.gmwpl.com
COST ANALYSIS
• Cost to retread one nylon tyre=Rs.4,500.00
• Cost to retread one radial tyre=Rs.4,800.00
• Net profit from tyre retreading one tyre=Rs,1000.00 to Rs.1,500.00 (depending on the indirect expenses)
Website: www.gmwpl.com
THANK YOU
GEMENI MACHINE WORKS PRIVATE LIMITED
S.F.No.359, Balaji Nagar, Singanallur, Coimbatore,Tamil Nadu – 641005, IndiaPhone No: 91- 422 – 2590313,Mobile No : 91-98940-14028 , 91-95855-39314 Fax : 91- 422 – 2572830Email : [email protected]: www.gmwpl.com