Cold retreading versus hot retreading processes
- Cold retreading (Procure system): A pre-cured, factory-moulded tread rubber strip with deep agricultural lugs is bonded onto the buffed casing inside a pressurized autoclave chamber at lower temperatures, preserving casing strength.
- Hot retreading (Mould cure): Uncured raw rubber is applied to the buffed casing and vulcanized in a high-temperature heated metal matrix mould.
- Cold retreading is widely preferred for agricultural tyres because the lower bonding temperature avoids heat-induced degradation of the tyre's internal cord plies.
Casing inspection criteria before retreading
- Check for structural sidewall cuts, bead wire deformation, or interior cord separation that render a tyre casing non-retreadable.
- Ensure the casing has not been operated in severely under-inflated conditions, which fractures internal nylon ply layers.
- Ideal candidates: Tyres with smooth, evenly worn tread lugs where the underlying carcass remains intact and undamaged.
Field performance, haulage and safety guidelines
Retreaded tyres perform reliably for road haulage, dry field cultivation, and stationary PTO thresher work. However, for continuous heavy wetland paddy puddling or high-speed commercial transport, brand new original tyres offer higher puncture resistance. Ensure retreading facilities comply with Bureau of Indian Standards (BIS) retreading specifications.
Official source
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Bureau of Indian Standards (BIS) ↗Related on KisanPe
Common questions
How much money can a farmer save by retreading tractor tyres?
Retreading typically costs between 25 and 35 percent of the price of a new replacement tyre, saving up to 65 to 75 percent on tyre expenses.
Is cold retreading or hot retreading better for tractor tyres?
Cold retreading is generally superior because the pre-cured tread bonds at lower temperatures, preserving the elasticity and lifespan of the tyre casing.
Can any worn tractor tyre be retreaded?
No, only tyres with sound internal casings free from sidewall cracks, cord breaks, or bead wire damage can be safely retreaded.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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