Product Specification

Product Name: 1200R22.5 20PR Fully Retreaded Standard-Load Heavy-Duty Radial Tubeless Tire

Applicable Vehicle Models: Standard-load vehicle models based on gross vehicle and cargo weight. Tubeless tire, compatible with 22.5 tubeless rims.

Main Technical Parameters

Wear Resistance
Abrasion index: 120, based on the national standard benchmark of 100. With a tread pattern depth of 15.7 mm and an optimized standard wear-resistant rubber formula, the tire offers 10% better wear resistance than ordinary tires of the same specification, making it suitable for good paved road conditions.

Puncture Resistance
The tread base uses a standard design with steel belt protection. Resistance to punctures from nails and gravel is at a standard level. The sidewall uses a standard puncture-resistant rubber layer to reduce the risk of cuts from road shoulders and gravel.

Standard-Load Design Features
No additional reinforced structure is included. The tire uses standard sidewall support rubber and belongs to standard-load conventional technology. The tubeless structure uses an integrally formed air-sealing layer to reduce the risk of slow air leakage and meet daily standard-load transport needs based on gross vehicle and cargo weight.

Structure

1200R22.5 20PR fully retreaded standard-load radial steel tubeless tire.

1. Overall Steel Radial Structure
This tire is an all-steel radial heavy-duty tubeless tire. The carcass steel cords are arranged radially along the tire, in a 90-degree direction perpendicular to the bead. The belt steel cords wrap around the circumference at a low angle to form a rigid belt structure. Compared with older bias tires, this design provides high strength, low heat generation, and standard-load durability. The tubeless structure includes an internal air-sealing layer and is used with 22.5 tubeless rims.

2. Layer Structure, From Inside to Outside

Carcass Ply Layer, Radial Carcass

• Number of layers: 1 layer of high-strength steel cord fabric, forming an all-steel radial structure.
• Cord arrangement: Radial 90-degree arrangement. The force follows the radial direction of the tire. Under standard load, the carcass deforms evenly, resists flex fatigue, and reduces repeated compression cracking.
• Bead area: The steel cords are turned up and reinforced, extending to the upper-middle position of the sidewall. Together with standard support rubber, this improves sidewall compression resistance.
• Compared with bias tires: Bias tires use multiple crossed fabric layers, generating more heat and aging more easily. The single-layer steel radial carcass has smaller deformation, better heat dissipation, and greatly improved durability.

Belt System, 4 Layers of Steel Belts

• Layers 1 and 2: High-elongation steel cord fabric, cushioning impacts and absorbing road bump impact force.
• Layers 3 and 4: High-modulus, low-angle steel layers, wrapping around the circumference at approximately 18-22 degrees and rigidly tightening the tread.
• Function: Restrains tread deformation, stabilizes the tread contact area, improves puncture resistance and wear resistance, suppresses tread warping under standard load, reduces tread block chunking, and improves durability.

Tread Rubber Layer

• Upper tread layer: Standard wear-resistant rubber formula with a standard block pattern, tread depth 15.7 mm, suitable for good paved roads.
• Tread base rubber: Low-heat buffer rubber, isolating impacts, protecting the belt steel cords, and preventing hard objects from directly striking the steel cords and causing cord breakage.

Air-Sealing Layer, Tubeless Structure

• The inner side of the carcass has an integrally formed air-sealing layer to ensure tubeless tire sealing performance. It is used with 22.5 tubeless rims and does not require an inner tube.

Advantages of All-Steel Material
Steel cords have much higher strength than fiber cords, with resistance to tension and impact. The 20PR ply rating design is suitable for standard gross vehicle and cargo load and good paved road conditions.

Technical Precautions for Use

1. Impacts with sharp hard objects, overloading, and long-term operation with insufficient tire pressure can still cause damage. It is strictly prohibited to drive beyond the 49-ton gross vehicle and cargo weight standard-load limit.

2. Strictly follow the inflation pressure standard. Regularly check whether the tread and sidewall have damage or bulging, and regularly perform tire pressure testing.

3. This product is designed for standard load only. It is suitable only for standard-load gross vehicle and cargo weight conditions and good paved roads. It is not suitable for non-paved complex engineering conditions or overloaded transport; otherwise, the service life will be greatly shortened.