Retread Equipment

Tire Buffer
Tread Builder
Electric Curing Chamber
Envelope Expander
Cement Churner & Cyclone Filter
Rail System / Monorail
Process Monorail
Inspection Spreader
Expandable Rims and Hub
Curing Rims & Bead Seal Plate
Rimming Station
Snap Seal
Tire Stand, Trolley and Skiving
Nail Hole Detector

Retread Consumables

Curing Bag
Envelope

Retreading Tools

Carbide Rasp
Hand Tools
Tire Repair Knives
Brushes
Buffing Blades
Radial Repair Tools

Repair Equipment

Extruder gun
Tire Spotter

Tyre Service Equipment

Nitrogen Generator & Inflator

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TYRE RETREADING BUSINESS PROCESS

Tyre Retreading Machinery


Process Monorail

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.

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

Buffing

The primary objective of buffing is to remove the worn out tread and prepare the surface for a new tread.

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.

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.

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

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.

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.

Final Inspection

The final inspection is done to ensure that the quality of the retreaded tyre is good.

 
 
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