Raw material delivery

This device unloads bulk materials such as coal and iron ore from tankers using a bucket. Continuous unloaders, in particular, can efficiently unload cargo from ships in a short time, significantly reducing berthing charges.

Chain/sprocket for unloader

Unloader chain

Tsubaki's unloader chains, boasting an extensive track record of successful deliveries, possess superior durability thanks to their unique technology. Furthermore, they are specialized to meet the specific requirements of the materials being transported.

Sprocket for unloader

The sprockets used in the unloader are manufactured with an optimal shape to match the chain. They undergo a special hardening treatment, resulting in extremely high wear resistance.

Cable Carrier (CABLEVEYOR)

Tsubaki's Cable Carrier (CABLEVEYOR) Steel Series is a high-strength, high-rigidity, and heat-resistant steel cable and hose support and guide device. Stainless steel versions, cost-effective special surface treatment versions, and circular travel arrangement are also available.

Cable Carrier (CABLEVEYOR) Steel Series TK Type

Cable Carrier (CABLEVEYOR) circular travel arrangement

Bucket wheel type reclaimer

A bucket-wheel type reclaimer uses a wheel with a bucket attached to the end of a boom to rotate and discharge materials. It discharges bulk materials such as ore stored in a storage area to the next process.

Electric cylinder/ overload protective device

Power Cylinder

The Tsubaki Power Cylinder is an electric cylinder that can be used with simple electrical wiring.

Unlike hydraulic or pneumatic systems, it eliminates the need for complicated piping, making maintenance easy. Standardized from low to high thrust, with a wide range of options and built-in safety devices, it ensures safe operation. Furthermore, Power Cylinder U series is ideal for applications requiring heavier loads.

Mechanical protector

The reclaimer's swivel ring gear is driven by a pinion. Tsubaki's Mechanical protector instantly prevents overload caused by coal or debris clogging the gears, even in large equipment.

Chain scraper reclaimer

This machine is used to dispense bulk materials such as ore from a storage area. It dispenses the extracted material to the next process. This type uses a scraper attached to a chain to dispense the material.

Reclaimer Chain

Reclaimer chains reach the end of their lifespan when wear-resistant inclusions enter the space between the bushings and rollers, or inside outboard roller, causing poor roller rotation and wear between the bushings and rollers.

Tsubaki achieves a longer chain lifespan by employing bearing rollers with excellent dust resistance.

Coke plant

Coal is steamed in a furnace to produce coke. Iron is extracted by reducing iron ore with carbon, and the furnace also serves as a heat source for melting ore and limestone.

Power Cylinder that play an active role in coke dry quenching systems (CDQ).

Tsubaki's electric cylinder, "Power Cylinder," is widely used in CDQ (Collision Discharge Quenching) systems and contributes to energy conservation in steel mills around the world.

Furthermore, compared to hydraulic cylinders, it significantly reduces _CO2 emissions and electricity consumption, and is an environmentally friendly actuator that reduces the risk of contamination and fire due to oil leaks from hydraulic hoses.

Sintering plant

In the sintering process, the powdered iron ore, which makes up the majority of the imported iron ore, is sintered to produce sintered ore.

Large conveyor sprocket Smart Replaceable series

For sprockets used in harsh environments such as dusty conditions, we recommend the Sprocket Smart Replaceable Series, which features Indicator pins (replacement notification mark) that allows you to easily check when it's time to replace the sprocket.
Since the replacement time can be checked at a glance, inspection time and labor costs can be significantly reduced.

Indicator pins Inspection

When the teeth wear down and reach the mark, they have reached the end of their lifespan.

Scrap conveyor

This unique conveyor can transport a variety of objects through repeated reciprocating motion.

Unlike vibrating conveyors, there is no vertical bouncing or impact, and the conveyed objects move smoothly across the tray. Depending on the conveyed objects, it can be used for high-temperature and heavy object transport, as well as for wear prevention and rust prevention.

One-touch window

Tsubaki One-Touch Window is a mass-produced inspection window created by Tsubakimoto Bulk Systems, a company with extensive experience in bulk material conveyors, based on their experience and real-world feedback from the field.

It is used in essential inspection and cleaning areas at various facilities such as conveyors, hoppers, and chutes.

Dust collector undercarriage conveyor

We propose the optimal conveyor system tailored to your needs for transporting dust from dust collectors.

From considering layouts tailored to the discharge route to selecting specifications suited to the characteristics of various dust materials such as coke and sintered materials, leave it to Tsubakimoto Bulk Systems, a company with a wealth of experience. We also handle direct-mount dust collector types that do not require a quantitative feeder to the conveyor.

Blast furnace

This is a facility that produces iron from iron ore. Iron ore and coke are alternately charged into the furnace from the top, and hot air is blown in from the bottom of the furnace. The CO2 gas generated by the combustion of the coke reduces the iron ore, turning it into iron. The temperature inside the furnace reaches 2000°C, and the molten iron (molten pig iron) is removed from the bottom of the furnace.

converter

This is the process of refining molten iron produced in a blast furnace to produce molten steel.
Molten iron contains many impurities such as carbon, silicon, and phosphorus, so it is transferred to a converter where oxygen is blown in from both above and below to oxidize and remove the impurities, thereby adjusting it to the optimal composition required to produce "steel."

Linispeed Jack / Linipower Jack

To agitate the molten iron and remove impurities, the impeller is immersed in Linipower Jack for agitation.
Tsubaki's Linipower Jack offer a wide range of options, including gearboxes, to meet customer needs. Furthermore, Linispeed Jack achieves high speed, high frequency, and a low profile, making it an innovative jack that is faster and easier to use.

Linipower Jack

Linispeed Jack

RS Roller Chain G8

To commemorate our 100th anniversary, we have further renewed our trusted and proven Tsubaki RS roller chain "G7-EX" and added the "G8" series as our 8th generation RS roller chain. We have adopted a new lubricant to improve handling, suppressing chain stickiness while simultaneously improving wear resistance by 20% compared to the previous model.

Evolution of roller chain wear life

*Compared to internal company experiments

Continuous casting

This is the process of solidifying molten steel refined in a converter to create steel billets of a specific shape.

Molten steel removed from the converter is continuously poured from the ladle into a mold below and cooled. Once cooled and solidified, the steel is cut to the required length and transported to the rolling process, where it is processed into various shapes.

Pin gear drive Unit

This is a new drive unit that replaces gears and is ideal for the rotational drive section of ladle turrets and the drive section of rolling mill trolleys.

By employing a segmented design, installation is easy, and it can be used even with rough precision. A range of sizes is available to replace large gears, making it suitable for large-scale equipment.

Product Info is available here.

Worm gear reducer (water-cooled)

Tsubaki's worm gear reducers include not only cylindrical worms but also Troidal Worm in their lineup.

It offers high power, is lightweight and compact, and can accommodate various special specifications, including water cooling, even in high-temperature environments such as pinch roll drive systems.

Contact us here

Dummy Bar Car Chain

This is a chain used to return dummy bars used in continuous casting to their original positions.

The attachment shape is designed to match the dummy bar used by the customer. The parts of the plate and attachment that engage with the dummy bar are heat-treated to increase strength.

Contact us here

Cable Carrier (CABLEVEYOR)

Tsubaki's Cable Carrier (CABLEVEYOR) Steel Series delivers superior strength, rigidity, and durability.

Dustproof Cable Carrier (CABLEVEYOR) carrier

By setting a wide gap between the two plates that make up Cable Carrier (CABLEVEYOR), clogging due to dust and metal shavings, poor bending due to dust accumulation, and flapping during operation are prevented.

It ensures smooth operation and improved durability even in environments where dust is scattered and accumulates.

Contact us here

Cable Carrier (CABLEVEYOR) with special surface treatment specifications

In addition to the "stainless steel specification," which offers excellent corrosion resistance even when directly exposed to water or in high-temperature environments containing water vapor, we also offer a "special surface treatment specification."

The plates and connecting pins are treated with a special process to prevent corrosion, contributing to improved durability and reduced replacement frequency.

Contact us here

Large size conveyor chain Advanced Model

We have added an advanced model to our lineup that improves upon the wear resistance and allowable tension of conventional Tsubaki Large size conveyor chain.

By selecting the optimal specifications for each conveyor application, it is possible to further extend the chain's lifespan. This contributes to overall cost reduction by reducing replacement costs and extending the lifespan of ancillary equipment and parts.

Click here for the special page on the advanced model.

Environmentally resistant Drive chain (NEP Series / APP Series)

For chains used in harsh, corrosive environments, Tsubaki's environmentally resistant Drive chain are ideal.

Beyond just stainless steel chains, our Surface treated drive chain and NEP Series offer a balance of lifespan and cost-effectiveness. In addition to NEP Series, which are excellent in saltwater resistance, weather resistance, and chemical resistance (alkaline chemicals), APP Series, which feature a special surface treatment only on the pins, protect the pins from pitting corrosion corrosion, which is the starting point of fatigue failure, and are effective even in environments exposed to water splashes and steam.

Click here for NEP Series product page.

Hot rolling

This is the process of stretching a slab to create a strip of steel.
The slab is reheated to about 1250°C and rolled while still hot. The rolled steel strip is then wound into a roll, similar to toilet paper (hot coil).

Suspension chain

Tsubaki chains are used in critical areas such as the opening and closing of the heating furnace door.

In addition to our reliable and proven heavy-duty chains, we also offer RF-type chains, which are compatible with heavy-duty chains and have a proven track record.

Conveyor chain for transporting semi-finished products

Chains used in conveyors that transport semi-finished products such as slabs and billets must be designed taking into account the shape, temperature, and environment of the transported material.
Based on our extensive experience, Tsubaki's conveyor chains can propose the optimal specifications for your needs.

For billet transport

For slab transport

For cooling beds

For wire transport

Toughroller

Tsubaki's Toughroller is ideal for moving, transferring, and transporting heavy objects. Its low center of gravity, compact size, and highly round rollers allow for the transport of heavy loads with minimal effort.

Movement of rolling mill trolley - Large size Pin gear drive unit-

Tsubaki's Pin gear drive unit play a vital role in moving rolling mill carriages. They can accommodate Long travel length that were not possible with hydraulic cylinders and contribute to space saving. The pin racks are manufactured as units of a fixed length, and using angle specifications makes installation and gear contact adjustment easy.

Cold rolling

This process involves rolling a hot coil to the desired product thickness at room temperature. It is then further thinned using cold rolling to create a cold-rolled coil.

Worm gear reducer Troi Drive

The Tsubaki Troi Drive, which employs a compact, Troidal Worm is ideal for rolling mills.
Troi Drive achieves high efficiency by pursuing an optimal tooth surface shape that prioritizes efficiency. Furthermore, its high number of simultaneously meshing teeth minimizes rotational unevenness.

Rolling mill for rolled steel sheets, rolling roll drive mechanism

Hollow type

Solid type

Linipower Jack

Tsubaki jacks offer three types of screws: Trapezoidal Screw, Ball screw, and high-lead Ball screw. Furthermore, some Trapezoidal Screw are also available in stainless steel and left-hand thread versions, enabling shorter delivery. They are adaptable to a variety of layouts and environments.

Right-hand type

Left-hand type

If A and B are right-hand threads, the screws will advance in the opposite direction [DOWN] to C and D.
By adopting a left-hand thread design, it will be in the same direction [UP].

Looper equipment: CAL (Continuous Annealing Line), CGL (Plating Line)

A looper system is a material storage device that handles the transfer, winding, and unwinding of rolled materials.

In steel sheet surface treatment lines, including CAL and CGL, continuous surface treatment is performed. This involves welding the joints between coils at the input end and cutting the coils after winding at the output end. When the flow becomes discontinuous, the carriage of the loop tower is raised and lowered to smoothly deliver the stored steel sheets. The reliable and proven Heavy duty drive chain plays a vital role in raising and lowering the carriage.

The G8 Heavy duty drive chain features a larger plate shape and thickness, providing high power transmission capacity and tensile strength while maintaining compatibility with general-purpose Drive chain.

Our lineup includes the RS-HT chain with increased plate thickness and improved tensile strength compared to RS roller chain; Super chain, which offers improved Maximum allowable load (transmission capacity); and Super-H chain, which significantly improves tensile strength and Maximum allowable load by increasing plate thickness in the shape of Super chain.

Super chain

Super-H chain

RS-HT chain

*This is based on a general-purpose roller chain being set to 100. (Comparison based on RS80 size)

Overhead traveling crane

Overhead traveling cranes can perform three operations: hoisting, traversing, and traveling. They can secure a wide working area and are used for transporting coils in storage yards and product shipping yards.

Cable Carrier (CABLEVEYOR) Gliding arrangement specification

Cable Carrier (CABLEVEYOR) Plastic Series can handle travel length of up to 120m, making it suitable for use in overhead traveling cranes with long travel distance.

We also offer rails and options for Gliding arrangement, allowing for quick and easy installation. Furthermore, attaching sliding shoe contributes to extended lifespan and reduced labor.

Comparison of wear conditions

After 130,000 round trips

No sliding shoe
Wear is progressing

With sliding shoe
Minimal wear

Linear Actuator

In addition to screw and nut type actuators, Tsubaki can also propose interlocking chain type actuators.
Lift Master, which can handle cantilevered loads, and Zip Chain, which is space-saving and supports high speed and high frequency operation, are revolutionizing the workplace.

Lift Master

Screw and nut type

You can watch the video.

Built-in slide guides provide high rigidity, allowing it to withstand cantilever loads!

It features a compact structure with the guide mechanism built into the frame. This significantly reduces assembly and installation time.

Zip Chain Actuator

Interlocking chain type

You can watch the video.

Achieves unparalleled space savings that were not possible with conventional linear motion systems!

The meshing chain type linear motion system achieves significantly greater space savings compared to other types of linear motion systems.
It boasts excellent features such as high-speed and high-frequency operation capabilities, and environmental friendliness.

Zip Chain Lifter

Interlocking chain type

You can watch the video.

Supports high-speed lifting and high-frequency operation!

This revolutionary lifter efficiently transmits power by directly transferring lifting thrust through a meshing chain-type linear motion system.

Chain transport

Our Bearing Roller Conveyor Chain feature a unique structure with cylindrical bearing inside the rollers.

We also offer dust-resistant, water-resistant, and Lube-free versions, and the saddle section is available in shapes to suit the shape of the conveyed material.
Furthermore, compared to ball bearings, it offers superior impact resistance, making it ideal for transporting heavy objects such as coils.

Conventional specifications for Bearing Roller Conveyor Chain

General-purpose conveyor chain

Function of bearing rollers

• Reduced chain running resistance (1/3 of general-purpose conveyor chains)
• Significant increase in roller load capacity

Bearing Roller Conveyor Chain

Features of bearing rollers

• Reduced chain tension and required power.
• Preventing jerking during long-conveyor length, low-speed operation.
• Suppression of roller rotation failure and reduction of rail friction
• Improved wear life (between bushing and roller)

Dust-resistant specifications

Standard Lube Free Series

Water-resistant

Variations

Cart transport

Many fully automated coil storage and transport systems are installed in product management areas at temporary storage and shipping yards for hot-rolled and cold-rolled coils.
Based on our extensive experience, the Tsubaki Material Handling Division will help our customers achieve stable operation and improved productivity as required.

Two-tiered trolley

Supply cart

Pallet car

Packing line

Coil Turner

Storage robot

Liner Robot

Skit Robo

Shuttle robot

Coil lifter

Shuttle car

ECHT-FLEX Coupling CFRP Spacer Specification

The spacer pipe section utilizes CFRP (carbon fiber reinforced plastic), achieving both corrosion resistance and significant weight reduction.
You can choose between the easy-to-install NER series and the easy-to-replace NEF series.

NER230W Spacer Mass Comparison
(When the distance between hub faces is 2000 mm)

NER series

When combined with the NER series, which features a center unit structure, it can be easily installed even at high altitudes or on uneven or unstable installation sites. A stainless steel version is also available.

NEF Series

It can be combined with the NEF series, which allows for easy replacement of the disc (leaf spring) as before. Furthermore, by using CFRP material for the disc (leaf spring), the allowable misalignment can be increased, extending the lifespan, and stainless steel specifications are also available.