Selection Guide Large size conveyor chain
- I want to reduce environmental load
- I want to improve conveying capacity
- I want to solve my troubles
- I want to use it in a corrosive atmosphere
- I want to select according to an application
- I want to use it for general uses and economically
- I want to see application devices and accessories
Large size conveyor chain DT Series
Model No. RF□□□□□R・F・S・M・N-DT~
Our most economical general use conveyor chain. (Basic model )
- ・Available in meter and inch pitches.
- ・A wide array of attachments.
- ・Pins and bushes are heat treated, but plates are not.
- ・Operating Ambient Temperature :-20℃~200℃
Size
RF03tons~RF120tons
RF430~RF212
Attachment Types
A1, A2, A3, K1, K2, K3, GA2, GA4 etc.
Roller type
R-roller , F-roller ,
S-roller , M-roller
Large size conveyor chain DTA Series
Model No. RF□□□□□R・F-DTA~
Advanced version of DT Series that offers better wear resistance (Advanced model )
- ・Has 3x bush-roller wear resistance of DT Series.
- ・DTA Series chains are available with R and F rollers only.
- ・Operating Ambient Temperature :-20℃~200℃
Size
RF03tons~RF36tons
Contact us for imperial pitches.
Attachment Types
A1, A2, A3, K1, K2, K3, GA2, GA4 etc.
Roller type
R-roller , F-roller
Large size conveyor chain AT Series
Model No. RF□□□□□R・F・S・M・N-AT~
Has twice a maximum allowable load of general use conveyor chain (DT Series), with increased bush - roller wear resistance and roller allowable load. (Basic model )
- ・Available in meter and inch pitches.
- ・A wide array of attachments.
- ・Operating Ambient Temperature :-20℃*~400℃
※Contact a Tsubaki representative when using below -20℃.
Size
RF03tons~RF440tons
RF430~RF212
Attachment Types
A1, A2, A3, K1, K2, K3, GA2, GA4 etc.
Roller type
R-roller , F-roller ,
S-roller , M-roller ,
N-roller
Large size conveyor chain ATA Series
Model No. RF□□□□□R・F-ATA~
Higher model of AT series. Improved wear resistance and maximum allowable load. (Advanced model )
- ・Has 2x bush-roller wear resistance & 1.5x pin-bush wear resistance of AT Series, along with 1.2x maximum allowable load.
- ・ATA Series chains are available with R and F rollers from RF08-RF36 size only.
- ・Operating Ambient Temperature :-20℃*~200℃
※Contact a Tsubaki representative when using below -20℃.
Size
RF08tons~RF36tons
Contact us for imperial pitches.
Attachment Types
A1, A2, A3, K1, K2, K3, GA2, GA4 etc.
Roller type
R-roller , F-roller
Large size conveyor chain GS Series
Model No. RF□□□□□R・F・S・M-GS~
Stainless steel chain with better corrosion resistance than DT series (Basic model )
- ・Improved corrosion resistance of DT Series general use large size conveyor chain.
- ・Uses 400 series stainless steel.
- ・Operating Ambient Temperature :-20℃*~400℃
- ※Contact a Tsubaki representative when using below -20℃.
Size
RF03tons~RF26tons
RF430~RF212
Attachment Types
A1, A2, A3, K1, K2, K3, GA2, GA4 etc.
Roller type
R-roller , F-roller ,
S-roller , M-roller ,
N-roller
Large size conveyor chain GSA Series
Model No. RF□□□□□R・F・S・M-GSA~
Higher model of GS Series Improved wear resistance and maximum allowable load. (Advanced model )
- ・Improved 2x bush-roller wear resistance, 1.5x pin-bush wear resistance, and 1.3x maximum allowable load and roller allowable load of R roller, F roller than GS Series.
- ・Operating Ambient Temperature :-20℃*~200℃
- ※Contact a Tsubaki representative when using below -20℃.
Size
RF03tons~RF26tons
Contact us for imperial pitches.
Attachment Types
A1, A2, A3, K1, K2, K3, GA2, GA4 etc.
Roller type
R-roller , F-roller ,
S-roller , M-roller
Large size conveyor chain SS Series
Model No. RF□□□□□R・F・S・M-SS~
Higher model of GS Series Stainless steel chain with superior corrosion, chemical, heat and cold resistance. (Basic model )
- ・Uses 300 series stainless steel.
- ・Operating Ambient Temperature :-20℃*~400℃
- ※Contact a Tsubaki representative when using below -20℃.
Size
RF03tons~RF26tons
RF430~RF212
Attachment Types
A1, A2, A3, K1, K2, K3, GA2, GA4 etc.
Roller type
R-roller , F-roller ,
S-roller , M-roller
Large size conveyor chain SSA Series
Model No. RF□□□□□R・F・S・M-SSA~
Advanced version of SS Series that offers better bush-roller wear resistance. (Advanced model )
- ・Has 1.5x bush-roller wear resistance, and 1.3x R and F roller allowable load of SS series.
- ・Operating Ambient Temperature :-20℃~200℃
Size
RF03tons~RF26tons
Contact us for imperial pitches.
Attachment Types
A1, A2, A3, K1, K2, K3, GA2, GA4 etc.
Roller type
R-roller , F-roller ,
S-roller , M-roller
Large Size Conveyor Chain for Heavy Loads (Bearing Roller Conveyor Chain)
Bearing Roller Conveyor Chain has a unique structure with cylindrical bearings inside rollers for less running resistance/much higher roller allowable load/improved bush-roller wear life, thereby realizing ”higher efficiency", "cost reduction", "suppression of stick-slip phenomenon*” and "longer life of rollers/rails", which were difficult to solve with conventional conveyor chains.
In addition to Standard series, the range includes Anti-dust series, Lube-free series and Water resistant lube-free series, which can be selected to suit the required application.
*Phenomenon in which a chain repeatedly starts and stops, despite there being continuous drive from a drive source.
Screw Lock Link, a convenient connecting link that requires just a torque wrench to complete the cut and connection, is also available. Click here for details
1. Bearing Roller structure

2. Bearing roller functions
- ・Reduces chain's running resistance (1/3 of general use chain )
- ・Greatly increases allowable load of rollers
3. Bearing roller effects
- ・Less chain tension and required motor kW
- ・Stops stick-slip phenomenon on long conveyors or at low speed operation
- ・Suppresses poor roller rotation problems and decreases rail wear
- ・Improved wear life (Between bushes and rollers )
- ・Reduction in CO2 emissions and electricity costs
Product Lineup
Bearing roller conveyor chain Standard package
Model No. RF□□□□□BR・BF-DT・AT~
Uses a unique Tsubaki structure with cylindrical bearings inside rollers, it offers 5x wear life of general use conveyor chain (DT Series).
- ・Reduces required motor kW by 1/3, and allows users to go two sizes down.
- ・For overall equipment savings.
- ・Has same dimensions as general use conveyor chain with R or F rollers.
- ・Operating Ambient Temperature :BR, BF: -20℃~80℃
Size
RF03tons~RF36tons
Contact us for imperial pitches.
Attachment Types
A1, A2, A3, K1, K2, K3
Roller type
BR-roller , BF-roller
Bearing roller conveyor chain Anti-Dust Series
Model No. RF□□□□□DBR・DBF-DT・AT~
Labyrinth construction and seals make it difficult for dust to penetrate rollers compared to Standard Series Bearing Roller Conveyor Chain.
- ・Labyrinth construction and seals make it difficult for dust to penetrate, and this gives Anti-dust Series 3x wear life of Standard Series in dusty environments.
- ・Available with DBR or DBF rollers.
- ・Operating Ambient Temperature :-10℃~80℃
Size
RF10tons~RF36tons
Contact us for imperial pitches.
Attachment Types
A1, A2, A3, K1, K2, K3
Roller type
DBR-roller , DBF-roller
Bearing roller conveyor chain Standard Lube Free Series
Model No. RF□□□□□EBR・EBF-DT・AT~
Uses special cylindrical bearings that provide self-lubricating functions between bushes and rollers -- rollers can be used without additional lubrication. No additional lubrication required.
- ・Available with EBR or EBF rollers.
- ・Operating Ambient Temperature :-20℃~50℃
- ※Be advised when selecting that Lube-free Series has a different maximum allowable load than Standard Series. Roller allowable load is same.
Size
RF03tons~RF36tons
Contact us for imperial pitches.
Attachment Types
A1, A2, A3, K1, K2, K3
Roller type
EBR-roller , EBF-roller
Bearing roller conveyor chain Completely Lube Free Series
Model No. RF□□□□□AEBR・AEBF-DT・AT~
Requires no additional lubrication between pins - bushes and bushes - rollers.
- ・Uses alternating steel and special cylindrical bearing in a roller, a solid lubricant bonded to an inner surface of bushes, and seals to allow for lube-free operation for pins - bushes as well as bushes - rollers.
- ・Available with AEBR and AEBF rollers
- ・Be advised when selecting that Lube-free Series has a different maximum allowable load than Standard Series. Roller allowable load is same.
- ・Operating Ambient Temperature :-20℃~50℃
Size
RF05tons~RF26tons
Contact us for imperial pitches.
Attachment Types
A1, A2, A3, K1, K2, K3
Roller type
AEBR-roller , AEBF-roller
Bearing roller conveyor chain Water Resistant Lube Free Series
Model No. RF□□□□□WEBR・WEBF-GS~
Uses alternating stainless steel and special cylindrical bearings in a roller to provide lube-free operation in contact with water.
- ・Available with WEBR or WEBF rollers
- ・Operating Temperature Range :0℃~50℃
Size
RF03tons~RF36tons
Contact us for imperial pitches.
Attachment Types
A1, A2, A3, K1, K2, K3
Roller type
WEBR-roller , WEBF-roller
Industry Specific Products
Our line-up of industry specific chains is based on our experience in specialized industries of every kind.
These chains can also be used in other industries as well.

Cement industry

Steel Industry (super heavy load conveyance)

Biomass Power Generation

Waste Disposal Facilities

Food Industry

Water Treatment Facilities

Automotive Industry
Cement industry
Conveyor chains specially designed for the stockpile, firing, and finishing processes
- Stockpile
- Firing
- Finishing
Reclaimer
Reclaimer

A chain used on reclaimers, which continually scrape stockpiled aggregate to supply to the next process. Heavy loads act on the chain, which can cause premature roller wear.
Reclaimer chains are specially designed for use with various materials and in various conditions.
Apron Conveyor
Apron Conveyor

A chain used on conveyors that convey raw material and fuel on an apron. Dust can have a huge influence on roller wear.
Normal (Basic model ) |
Advanced Model (Advanced model ) |
|
---|---|---|
Short conveyors | DT Series | DTA Series |
Short conveyors | AT Series | ATA Series |
When even longer life is needed…, Bearing Roller Conveyor Chain Anti-Dust Specifications
Cake Conveyance
Cake Conveyance
Dehydrated cake can cause corrosion on the chain. Stainless steel chains are often used to counter this.
Outdoor Conveyor
Outdoor Conveyor
Ideal chain for use outdoors.
Clinker Conveyor (Drag Conveyor )
Clinker Conveyor (Drag Conveyor )

A drag chain for conveying clinker. Conveys by pushing the conveyed material with the leading face of the bush.
Fuel Conveyance
Fuel Conveyance
A chain that conveys fuel such as coal, coal dust and other highly abrasive material.
・Coal dust conveyance ---Y Series
Flow Conveyor
Bucket Elevators
Bucket Elevators
A chain that lifts up and conveys powders in a sealed case. The focus is on wear protection and fatigue strength.

・Normal
・Coal dust conveyance
・Fly ash conveyance
Product Conveyance
Dust Collector Conveyor
Dust Collector Conveyor
A conveyor chain that collects dust generated invarious processes.
・Normal
・For corrosive environments ・Poor articulation protection
・Poor roller rotation protection
Tsubaki offers the ideal clearance for any material.
Special Block Tooth Insert Sprockets Block Replaceable Tooth Type
Special Block Tooth Insert Sprockets Block Replaceable Tooth Type

Special sprockets used in highly wear inducing environments or when sprocket replacement is difficult.
Steel Industry (super heavy load conveyance)
Conveyor chains that can handle massive items, heavy loads, high speeds, and high temperatures
- ①②Stockyard
- ③Sintering Plant
- ④Pig Iron Plant
- ⑤Hot Strip Mill
- ⑥Product Yard
- Blast Furnace
- Coking Plant
- Cold Mill
①Continuous Unloader Chains
①Continuous Unloader Chains

A continuous unloader continuously unloads loose material from a ship using a chain with buckets attached.
High unloading speeds mean heavy wear, so they use Tsubaki Unloader Chains to minimize wear elongation.
②Scraper Reclaimers
②Scraper Reclaimers

A chain used on reclaimers, which continually scrape stockpiled aggregate to supply to the next process.
Heavy loads act on the chain, which can cause premature roller wear.
Reclaimer chains are specially designed for use with various materials and in various conditions.
③Sintered Ore Pan Conveyors
③Sintered Ore Pan Conveyors

A large, specially shaped conveyor chain used to convey high temperature materials.
Available in various types to meet the needs of conveyed materials or corrosive environments.
④Continuous Casting
④Continuous Casting

Tsubaki offers chains that fit the shape of dummy bars.
- Dummy Bar Receiver Chain
⑤Hot Rolling
⑤Hot Rolling
Chains designed for the shape, temperature, and conveyance environment of the conveyed material.

Slab conveyance

Billet conveyance
Direct conveyance
⑥Coil Transfer
⑥Coil Transfer

Uses cylindrical bearings between rollers and bushes to minimize running resistance.
This allows it to convey heavy loads.


Saddles designed to fit the shape of the conveyed material.
High Temp. Material (steel mill/hot strip)
High Temp. Material (steel mill/hot strip)
Conveyed material exceeds 400℃
Tsubaki offers special conveyor chains for high temperatures using optimal clearances and material to match the conveyed material or temperature.
Ambient Temperature (Steelmaking, hot strip mill)
Ambient Temperature (Steelmaking, hot strip mill)
Conveying billets, coils, and other heavy loads
Premature roller wear from billet and steel rod conveyance
Biomass Power Generation
Conveyor chains for even the harshest biomass power generation processes
Waste Disposal Facilities
The optimal conveyor chain for the harsh conditions facing each process
- ①Intake/feed conveyor
- ②Ash conveyor
- ③Fly ash conveyor
- ④Slag conveyor
①Intake/feed conveyor | ②Ash conveyor | ③Fly ash conveyor | ④Slag conveyor | |||
The first line to convey the collected waste. The received waste can cause impacts and high loads on the chain here. Intake/feed conveyor ![]() ・Conveyed object :Collected waste |
This line conveys ash from the incinerator. In some instances, ash that has been cooled by being dropped in water is also onveyed. Bottom ash conveyor (Dry) ![]() ・Conveyed object :Incinerator ash Bottom ash conveyor (Wet) ![]() ・Conveyed object :Incinerator ash (wet ) |
This line conveys the fly ash that has been created by the incinerator, boiler, etc. The chain is completely enveloped in fly ash here. Chemically treated fly ash is also sometimes conveyed here. Fly ash conveyor (Normal) ![]() ・Conveyed object :Fly ash Fly ash conveyor (Corrosive) ![]() ・Conveyed object : Fly ash directly after treatment |
This line conveys the slag produced by the melting incinerator. The slag will sometimes turn the cooling water into a strong alkaline or acid. Slag conveyor ![]() ・Conveyed object :Molten slag |
Food Industry
Conveyor chains that satisfy various food industry needs
Grains and Feed

Flow Conveyor Chain for Grains
Flow Conveyor Chains are designed not to crush the grains during conveyance or to leave any grains behind in the case.
Meat

3D Overhead Conveyor Chain for Meat
Specially designed chain to accommodate 3D layouts. Driven by sprockets with special tooth profiles.
Frozen Treats / Ice Cream

Cold Resistant Chain
Chain designed to minimize wear elongation down to -30℃. Circulates in freezers in a spiral fashion.
Foods

Sterilizer Chain
Chain designed to resist stress corrosion cracking and wear elongation in steam, cold water, and harsh atmospheres on long length conveyors. They have minimal differences when used in parallel as a set.
Bread Making

Tunnel Oven Conveyor Chain
Chain with excellent wear performance between bushes and rollers for use on long length, low speed conveyors at 200℃.
Sugar Refining

Bucket Elevator Chain for Refined Sugar Conveyance
Bucket Elevator Conveyor Chain that minimizes rusting and metallic debris from wear. Uses clean specifications to minimize chain grime.
Beverages

Conveyor Chain for Bottle Washers
Chain designed to minimize wear from detergents and contact with water. Customers have praised our combination of materials and heat treatments to match their usage environment.
Food Packaging

Lambda Plastic Roller Conveyor Chain for Food Packaging Conveyors
Conveyor chain that can be used without additional lubrication. Helps maintain a clean work environment.
Water Treatment Facilities
Diagram of Water Treatment Equipment
Automotive Industry
Conveyor chain that meets various needs such as "wear resistance", "positioning", "accumulation", "large load", "against stick-slip", and "long conveyor".
Press
Press
Cutting, casting, forging, sheet metal presses, plastic molding, etc.

・Impact on conveyor
・Heavy wear on bush-roller interface
(Advanced model )
・Better bush-roller wear resistance
・Longer wear life
Body Welding
Body Welding


Welding and assembly of roofs and body panels
・Accurate indexing conveyance is required
・Features needle bearings between pin and bush
Coating
Coating

Coating of bodies, doors, and other components
・Cart traction conveyance
- Conveyor chains for towing (with dogs)

・Conveyor chains for pallet tacking
(Accumulation )
- Free Flow Conveyor Chain
Assembly
Assembly


Vehicle conveyance, manconveyors
・Heavy localized loads / Long conveyor
→Heavy bush-roller wear
・Stick-slipping
→Low productivity
- Bearing roller conveyor chain
・Uses cylindrical bearings between bushes and rollers
・Better bush-roller wear resistance
・Stable thanks to 1/3 the coefficient of rolling friction for saving energy when conveying heavy loads
Low-floor (less than 300mm) conveyor chains for long conveyors and heavy loads are also available.

Inspection
Inspection
Shower testers and final inspection wiping line (optional)

Shower tester/washer line
Constantly showered with water
→Poor roller rotation
→Abnormal bush-roller wear
→Rusting
Bearing Roller Conveyor Chain Water Resistant Specs
・Long life in contact with water
Final inspection wiping line (optional)
Heavy loads, long conveyor
→Poor roller rotation
→Abnormal bush-roller wear
・Minimizes wear and stickslipping
Shower testers and final inspection lines
〈Roller type WDR/WDF〉
Can be used without lubrication in both wet and dry conditions
Roller type WDR/WDF |
Bearing roller conveyor chain | 【Reference 】 RT Series (Base chain ) |
||
Water Resistant Lube Free Series | Standard package | |||
Shower Tester | ○ | ◎ | × | △ |
Inspection line | ◎ | △ (Requires water lubrication ) |
◎ (Not exposed to water ) |
△ (Requires lubrication ) |
Rolling friction coefficient | 0.12 | 0.03 | 0.03 | 0.15 |
Note | Capable of wet and dry usage without lubrication | Optimal for shower tester applications | Not suitable for applications with exposure to water | SUS corrosion resistant chain |
◎:Ideal
○:Can be used
△:Can be used under certain conditions
×:Cannot be used
- I want to reduce chain wear elongation
- I want to extend roller wear life
- I want to reduce chain wear elongation in a corrosive atmosphere, etc.
- I want to extend roller wear life in a corrosive atmosphere
I want to reduce chain wear elongation
Basic model

Upgrade Step 1

Upgrade Step 2
Basic model

Upgrade Step 1

Upgrade Step 2
I want to extend roller wear life
Basic model

Upgrade Step 1

Upgrade Step 2

Upgrade Step 3
conveyor chain
For conveying countable items
Basic model


Advanced model

Upgrade Step 3
For conveying bulk items
I want to reduce chain wear elongation in a corrosive atmosphere, etc.
Basic model

Upgrade Step 1
Higher strength

Upgrade Step 2
Upgrade Step 1 +

Advanced model
I want to extend roller wear life in a corrosive atmosphere
Basic model

Upgrade Step 1
Higher strength

Upgrade Step 2
Upgrade Step 1 +

Advanced model
Upgrade Step 3
Toughroller
Model No. TUF~
Consisting of a frame and endless rollers, with the endless rollers wrapped around a center plate on the frame. Perfect for conveying, transferring, or moving heavy objects.
- ・Steel Roller Type (Basic Load Allowance 14.7kN~1961kN)
Steel roller Toughroller is a compact device with a high load allowance made from a tempered center plate and rollers. - ・Plastic Roller Type (Basic Load Allowance 2.94kN~34.3kN)
Plastic Toughroller uses engineering plastic for its rollers, which gives it increased functionality over the basic features of steel rollers. And Tsubaki's Plastic Toughroller Jr. is an economical, lightweight, simple design for easy use.
Size
Steel Roller Type
TUF-J~TUF200
Toughroller Jr.
TUF-JP
Plastic Roller Type
TUF1P~TUF4P
Double Roller Type
TUF25W-ESP-TTB・TUF4WP-ESP-TTB
Axle Bearing Roller
Model No. JB□□□-□~
Axle bearing rollers have cylindrical bearings in the rollers.
Perfect for conveying, transferring, or moving heavy objects.
- ・Perfect for conveying, transferring, or moving heavy objects, and is ideal for wheels and guide rollers.
- ・Lubed, lube-free, water resistant and heat resistant specifications are available.
- ・JBR:R-roller
- ・JBF:F-roller type
- ・JBFF:Dual frange roller type
- ・JBTF:F roller type with 5 ° taper
- ・JBUR:Urethane roller
Chain Series
Lubed specifications (Standard package ),
Lube-free specifications ,
Waterproof Type , Heat-resistant package
Size
JBR03~JBR36
JBF03~JBF36
Axle Type
1 Type , 2 Type
Roller type
BR-roller , BF-roller ,
BFF-roller , BUR-roller ,
BTF-roller
Attachment Bearing Roller
Model No. AB□□□-□~
Axle bearing rollers with attachments have cylindrical bearings in the rollers.
- ・Perfect for conveying, transferring, or moving heavy objects, and is ideal for wheels and guide rollers.
- ・Lubed, lube-free, water resistant and heat resistant specifications are available.
- ・ABR:R-roller
- ・ABF:F-roller type
- ・ABFF:Dual frange roller type
- ・ABUR:Urethane roller
Chain Series
Lubed specifications (Standard package ),
Lube-free specifications ,
Waterproof Type , Heat-resistant package
Size
ABR03~ABR36
ABF03~ABF36
Roller type
BR-roller , BF-roller
BFF-roller , BUR-roller