Tires
QKERMC supplies OTR tires for mining, earthmoving and construction equipment, and TBR tires for trucks and buses. The category is shown from the official presentation; size, ply rating, application and availability are confirmed per inquiry.
Send tire size, application, load conditions and quantity for a quotation.
OTR (off-the-road) tires are designed for mining, earthmoving and construction equipment, while TBR (truck and bus radial) tires are designed for trucks and buses. QKERMC supplies both categories from the official company presentation; size, ply rating, application and availability are confirmed per inquiry.
Which tire types are listed?
Brands
Tire range
The presentation identifies OTR and TBR product groups. Exact sizes and specifications are confirmed per inquiry.
CHENGSHAN CST301 Wide-Body Dump Truck OTR Tire
View details →CHENGSHAN ET01 Wide-Body Dump Truck OTR Tire
View details →CHENGSHAN ET02 Wide-Body Dump Truck OTR Tire
View details →CHENGSHAN ET03 Wide-Body Dump Truck OTR Tire
View details →CHENGSHAN ET06 Wide-Body Dump Truck OTR Tire
View details →CHENGSHAN ET07 Long-Distance Wide-Body Dump Truck OTR Tire
View details →CHENGSHAN ET16 Wide-Body Dump Truck OTR Tire
View details →CHENGSHAN ECO1 All-Terrain Crane OTR Tire
View details →CHENGSHAN ESM01 Underground Scraper OTR Tire
View details →CHENGSHAN CST76 Skid Steer Loader OTR Tire
View details →CHENGSHAN ELD12 Loader OTR Tire
View details →CHENGSHAN EL51 Loader and Underground Scraper OTR Tire
View details →CHENGSHAN ERD36 Rigid Dump Truck OTR Tire
View details →Being added to the catalogue. Request a quotation →
Frequently asked questions
What tires does QKERMC supply?
How do I request a tire quotation?
Are exact tire sizes available online?
Buyer guide
Buyer questions and selection reference
OTR and TBR are two application categories defined by the surface the vehicle works on, not two grades of the same tire. Mining and earthmoving machines work off paved roads, so they run on OTR tires.
What is the difference between OTR and TBR tires?
The two names describe where the tire is designed to work. OTR means off-the-road: built for equipment that runs on unpaved ground, such as mining trucks, loaders, excavators, cranes and scrapers. TBR means truck and bus radial: built for on-road trucks, buses and trailers. A mining truck is an off-road machine, so it takes OTR tires; the choice on a mining site is which OTR size and pattern to use, not whether to use OTR or TBR.
Do mining trucks, loaders and drill rigs use OTR tires?
Yes. Mining trucks, wide-body dump trucks, wheel loaders, excavators and drill rigs work off paved roads, so they run on OTR tires. The migrated catalogue contains 13 CHENGSHAN OTR tires for wide-body dump trucks (CST301, ET01, ET02, ET03, ET06, ET07, ET16), all-terrain cranes (ECO1), underground scrapers (ESM01) and skid-steer loaders (CST76). TBR is a separate on-road category for trucks, buses and trailers.
What decides which OTR tire fits a mining truck?
Four things decide it: the machine model and rim size, the axle position and its load, the haul road condition, and the haul distance and speed. Sharp rock and long hauls change which pattern and compound are appropriate. Send those four and the candidate sizes can be narrowed before the quotation.
How is the correct OTR tire size confirmed?
Send the machine model, rim size, axle position and site condition. Size class follows the rim and the machine; the pattern follows the road condition. Size, ply rating and availability are confirmed per inquiry, because a mining fleet often uses more than one size across trucks, loaders and support equipment.
Selection reference
| Criterion | OTR — off-the-road | TBR — truck and bus radial |
|---|---|---|
| What the name means | Tire designed to work off paved roads | Radial tire designed for trucks and buses on roads |
| Vehicles that use it | Mining trucks, wide-body dump trucks, loaders, excavators, drill rigs, cranes, scrapers, underground equipment | On-road trucks, buses, trailers and semi-trailers |
| Operating surface | Unpaved ground: mine benches, quarry floors, underground roadways | Paved roads and highways |
| Tread and compound focus | Cut resistance and wear resistance on abrasive ground | Tread mileage and fuel economy in road service |
| Sizing basis | Rim diameter class together with the machine model | Load index and speed symbol together with the axle position |
| Catalogue status | 13 CHENGSHAN OTR tires migrated | No entries migrated at present; the catalogue is being added to |
| Confirm before order | Machine model, rim size, axle load, haul road condition, haul distance | Axle position, load index, speed symbol, trailer type |