Drilling rigs bore holes from the surface down to deeper layers of the earth, and then, by loading and detonating explosives into the resulting boreholes, they remove topsoil and bedrock that would hinder mining. They are also used to collect core samples for resource exploration purposes.

In this type of excavation work, extremely large impact loads are generated during drilling and before and after blasting.
To meet these harsh conditions, Tsubakimoto Chain offers a lineup of Heavy duty drive chain in the G8 series, including RS-HT chain, Super chain, and Super-H chain.
Furthermore, to address pitting corrosion a common problem in outdoor environments, we offer APP surface treatment, which provides high corrosion resistance.

A rotary breaker is a large, cylindrical, rotary crushing machine used to crush raw materials into a processable particle size.
During rotation, the raw material is repeatedly lifted and dropped inside, causing it to be subjected to impact and gradually crushed. Of the crushed material, the relatively soft material with small particle sizes passes through the screen opening and falls onto the conveyor below, where it is transported to the next process. On the other hand, hard rocks and uncrushed materials are discharged from the end of the cylinder by mechanisms such as discharge plows.

To reliably support the rotation of such large machinery, Tsubakimoto Chain provides heavy duty cranked link chain.
This chain is designed for heavy machinery applications, including oil drilling rigs and hoists for power shovels, and is ideal for various heavy-duty applications, including rotary breakers.

A feeder breaker is a device that uses a deck and chain conveyor mechanism to perform initial crushing of ore to a manageable particle size.
The crushed ore is fed onto a belt conveyor and sent for further processing or storage in a stockyard.

For this conveying mechanism, Tsubakimoto Chain provides proven feeder breaker (steel bushing) conveyor chains and flight bars.
Furthermore, to address the rapid wear and tear in the extremely harsh operating environments found in the mining sector, Tsubakimoto offers corrosion-resistant surface treatments with a proven track record in the industry.
This surface treatment significantly extends the wear life of the chain, even in environments prone to corrosion, and contributes to reducing maintenance burden.

A reclaimer is a piece of equipment used to transport coal from coal stockpiles to coal handling and pretreatment plants (CHPP) and coal loading facilities, and is an indispensable core piece of equipment in a CHPP.
As there is a demand for increased equipment utilization rates and higher processing capacity (supply volume), the power transmission components used are required to exceed industry standards, not only for the present but also with a view to the future.

Under such demanding operating conditions, superior design capabilities and technological innovation are essential, and Tsubakimoto Chain is a proven brand that has achieved both performance and profitability.
For these types of facilities, Tsubakimoto Chain designs and provides reclaimer chains on a made-to-order basis.
We offer a wide range of options and design and manufacture products tailored to specific applications to address the unique challenges of each site.

Furthermore, to address the accumulation of dust that tends to form between bushings and rollers, we also offer a specification with enhanced dustproof performance for Bearing Roller Conveyor Chain.
Furthermore, Tsubakimoto Chain's Large size conveyor chain offer a wide range of base materials, corrosion-resistant coatings, attachments, and roller options, allowing them to flexibly meet the diverse requirements of each mining site.

A coal sorting facility (CHPP) is a large-scale facility that removes dirt and sediment (soil, rocks, etc.) attached to coal, preparing it for market shipment. The fewer impurities in the coal, the higher its market value. Simultaneously, the reduced weight due to the fewer impurities leads to lower transportation costs.

By applying a special high-hardness, low-friction coating to the pin surface, wear between the pin and the bushing is suppressed.
This significantly extends wear life and ensures stable performance even in harsh environments with a lot of dust and foreign matter.

Tandem drive motor grader

Motor graders are used for road maintenance and leveling within mines, and are important pieces of equipment that support the smooth operation of the entire site.
Maintaining good road conditions directly impacts the operational efficiency and operating costs of wheeled vehicles such as dump trucks and wheel loaders.

Tsubakimoto Chain offers a wide range of tandem drive chain replacement kits compatible with almost all motor graders on the market.
These kits are designed to withstand the shock loads and driving forces unique to tandem drives, contributing to stable operation.
Tsubakimoto's heavy-duty roller chains ensure reliable operation even under harsh conditions, guaranteeing stable equipment operation.

Mining shovel (excavator)

Mining shovels are driven by high-performance heavy duty cranked link chain and are used for excavating soil, loading it onto trucks, and excavation work in relatively limited areas (compared to bucket-wheel type reclaimers).
With its high versatility, it plays a central role as equipment in mining sites around the world.

multiple strand winch drive with 6 to 8 rows is used to raise and lower the shovelhead.
A large drum is driven by an electric motor, and the cable connected to the drum is wound up, causing the shovel head to move up and down. Tsubakimoto Chain's heavy duty cranked link chain are widely used in these critical drive components and are highly regarded for their reliability.
Supporting continuous operation even in the most demanding environments—Tsubakimoto Chain contributes to the stable operation of mining equipment.

The shuttle car is a core piece of equipment in underground mining systems, used to transport coal from the working face to the conveyor belt.
Each shift involves loading and unloading hundreds of tons of coal, and the vehicles are required to operate continuously for 24 hours under the most demanding conditions.

Because it is a crucial piece of equipment that significantly impacts mining output, the machinery and its components require extremely high reliability and durability on-site.
Tsubakimoto Chain has been a long-established partner, leading the underground mining field in both materials technology and services.

The face and top drills are crucial pieces of equipment that are initially deployed into newly excavated work areas to perform drilling operations to stabilize the top and side walls.
In processes carried out in underground environments, such as drilling before blasting and installing rock bolts, Tsubakimoto Chain supports the site as a reliable partner.

For this application, Tsubaki chains are designated and adopted by major OEMs and spare parts suppliers due to their high performance and reliability, further enhancing the confidence you have when selecting them.
Tsubakimoto's chain lineup, which combines specially designed heavy duty cranked link chain and surface treatments to prevent corrosion and damage, boasts an unparalleled range of options for underground mining applications.
Furthermore, to facilitate disassembly and assembly during underground work, it also supports a cotter pin specification.
Furthermore, when combined with Leaf chain and various surface treatments, it exhibits high durability and reliability even in harsh underground environments.

Continuous mining machines are large-scale mining machines that enter directly into the working face and continuously cut coal from the walls and top of coal seams using large cutting teeth mounted on a rotating steel drum.
With a mining capacity exceeding 30 tons per minute, it is positioned as a core facility in modern underground mining.

USTSUBAKI has been manufacturing proven products for many years at its production facility in Sandusky, Ohio, USA.
Tsubakimoto's products are used by OEMs, specified by users, and continue to be chosen in situations where high reliability and reduced downtime are required.