Large size conveyor chain

Product Info Large size conveyor chain

Large size conveyor chain can be freely combined to transport materials in any direction, including horizontal, vertical, and inclined orientations. They can withstand temperatures up to about 200°C without the need for special materials, and heat-resistant steel is used for higher temperatures. They also come in specifications that are corrosion-resistant and chemical-resistant to water and chemicals, making them suitable for a wide range of applications.
Almost any material can be transported, from powders such as pulverized coal and cement to granular materials such as wheat and soybeans, lumps such as ore and rocks, and even products weighing several tonnes each, and there are almost no restrictions on the materials that can be transported.

Structure

Conveyor chain structure diagram

Screw Lock Link

Screw Lock Link

A connecting link that enables safe and fast work.

Note: Due to the nut system, the pin length is long. Please check that it does not interfere with the device.

*The overall length tolerance for Large size conveyor chain is ±0.25%.

■ slip fit

When a shaft and a hole are fitted together, there is always a gap.

A fit in which the tolerance area of the hole is entirely above the tolerance area of the shaft (pin or bush).

■ press fit

A fit that always creates an interference when the shaft and hole are combined.

A fit in which the tolerance range of the hole is completely below the tolerance range of the shaft (pin or bush).

Learn more about the components and their functions

*( ) is the symbol for the part name that will be written on the delivery drawing.
1. Pin (CP) 2. Bush (B)
The most important role of pins is to connect outer link and Inner link. Like the plates, they receive chain tension in the direction of travel and reaction force from the transported goods in the perpendicular direction. Furthermore, when the chain articulate, the outer circumference of the pin slides against the inner circumference of the bushing, causing wear. Pins are an important strength component, but they also need to be wear-resistant. The bushing is a strength component that receives the tension of the chain when it meshes with the sprocket, but its main function is as a bearing component. The outer circumference of the bushing wears out as it slides against the inner circumference of the roller when the roller rotates, and the inner circumference of the bushing wears out as it slides against the outer circumference of the pin when the chain articulate. Wear on the inner circumference of the bushing directly appears as pitch elongation.
3.Roller (RR, FR, SR, MR, NR) 4. Plates (PLP-A, PLP-B, BLP)
It has a slip fit with the bushing.. When it meshes with the sprocket, it acts as a roller, mitigating impact and wear on the tooth surface. It also rolls when traveling, reducing rolling resistance. The plates are primarily subjected to tensile loads in the direction of chain travel, and to reaction forces at right angles to support the transported load. When the chain articulate, the outer and inner plates slide against each other, and when it engages with the sprocket, they slide against the side of the teeth. Generally, the outer plates have round or notched holes.
5. T-PIN 6. Attachment
Parts photos After press-fitting the pin into the outer plate, insert a T-pin and bend it to prevent the pin from falling out. Bend it by more than 30 degrees or until the end of the T-pin fits within the width of the plate. This is the part that secures the attachment.
For information on attachment types, see "Attachment Types" below.

■The three basic dimensions of chains

Pitch, roller diameter, and Inner link width are called the three basic dimensions of a roller chain. When these dimensions are the same, the roller chain and sprocket are dimensionally compatible.

View attachment types details

Attachments are parts for attaching transport fixtures to chains. They can be installed at desired link intervals.

Standard Attachment

This is an economical and versatile attachment.

A attachment

It has a blade on one side.

They are called A1, A2, and A3 depending on the number of bolt holes.

A1 Attachment

A1 Attachment

A2 attachment

A2 attachment

A3 attachment

A3 attachment

K attachment

It has wings on both sides.

They are called K1, K2, and K3 depending on the number of bolt holes.

K1 Attachment

K1 Attachment

K2 Attachment

K2 Attachment

K3 Attachment

K3 Attachment

GA Attachment

This type has bolt holes on one side of the plate.

They are called GA2 and GA4 depending on the number of bolt holes.

GA2 attachment

GA2 attachment

GA4 attachment

GA4 attachment

Dedicated attachment

Attachments for specific applications.

Deep Link

Deep Link

Top Roller

Top Roller

outboard roller

outboard roller

For flow

For flow

Special attachments (Plus α conveyor chain)

A variation of the special attachment.

With SA attachment

With SA attachment

A type with a vertical blade on one side

SK attachment included

SK attachment included

A type with vertical blades on both sides

CA2 attachment included

CA2 attachment included

Net installation
For gap-free slat installation

AA3 attachment included

AA3 attachment included

Powerful type that clamps attachments

AR2 attachment included

AR2 attachment included

Improved bending rigidity of A attachment
(with reinforcing ribs)

MG2 attachment included

MG2 attachment included

Can be used with one type of mounting jig

With AS2 attachment

With AS2 attachment

Scraper and flight mounting

AF2 attachment included

AF2 attachment included

Deep scraper and flight mounting

WSA0 attachment included

WSA0 attachment included

Prevents transported items from spilling

With extension pin

With extension pin

Can be attached to the end of a pin
(Format: EN)

With stay pin

With stay pin

Directly mounted on connecting pin
Installation of nets, etc.
(Format: TN)

With top plate

With top plate

No scratches on transported items
(Format: TP)

With trolley roller

With trolley roller

For horizontal long distances
(Format: TRO)

With outboard roller

With outboard roller

Supporting heavy loads
(Format: RO)

With guide shoe

With guide shoe

Prevents lateral vibration
(Format: GS)

With guide roller

With guide roller

horizontal use
(Format: GR)

With fixed dog

With fixed dog

Push and transport
(Format: KD)

With dog roller

With dog roller

Pushing and transporting round objects
(Format: RD)

With tilting dog

With tilting dog

Conveyor storage
(Format: CD)

With roller tilting dog

With roller tilting dog

Round object storage
(Format: RCD)

With ducking dog

With ducking dog

Leave the transported item in its designated position
(Format: DD)

Roller type

Large size conveyor chains come in three basic roller types depending on the application.

Large size conveyor chain basic roller type
R Roller F Roller S, M, N roller
R Roller F Roller S, M, N roller
  • - The most basic and versatile roller type.
  • - The rollers have a large load capacity and low friction resistance.
  • - Sideways vibration can be easily prevented.
  • -Suitable for rough use and for normal slat conveyors.
  • *When using the K attachment, please note that the mounting part may come into contact with the roller flange.

It helps to reduce shock and wear when the sprockets engage.

  • ・S roller type:
    The outer diameter of the roller is smaller than the width of the plate.
  • ・M roller type:
    The outer diameter of the roller is slightly larger than that of the S roller.
  • ・N roller type:
    The roller outer diameter is the same as the M roller, but the pin diameter is larger for increased strength (RF26200N and above).

Learn more about how to guide the rollers

Below are examples of roller-type guide methods for the Carrying side and return-way to ensure smooth operation of Large size conveyor chain.

Guide method example

R roller (S roller) type chain F roller chain Chain with outboard roller
Carrying way
return-way

Safety Precautions

Never weld additional parts to an assembled chain, as this can cause the chain to bend or twist due to plate distortion and can also cause the parts to lose hardness or become brittle due to heat.

Large size conveyor chain product list

Large size conveyor chain (Bearing Roller Conveyor Chain)

Bearing Roller Conveyor Chain has a unique structure with cylindrical bearing inside the rollers, which reduces chain running resistance, significantly improves roller allowable load, and extends the wear life between the bushing and roller.
This achieves improvements that were difficult to achieve with conventional conveyor chains, such as "higher efficiency," "lower costs," "suppression of stick-slip phenomenon *," and "extended roller and rail life."

In addition to the standard specifications, we also offer dust-resistant specifications, Lube-free specifications, Water Resistant Lube Free Series, etc., so you can choose the model that best suits your needs.

*The chain repeatedly moves and stops even though the drive unit is operating continuously.

We also offer the convenient Screw Lock Link, which allows connection and disconnection with just a torque wrench.Learn more.

1. Bearing Roller Structure

Bearing roller structure

2. Function of bearing rollers

  • - Reduced chain running resistance (1/3 of general-purpose products)
  • - Significant increase in roller allowable load

3. Effect of bearing rollers

  • -Reduction of chain tension and required power
  • ・Prevents jerking during conveyor length and slow operation
  • - Reduced roller rotation problems and rail wear
  • - Improved wear life (between bushing and roller)
  • ・Reduction of CO2 emissions and electricity bills

Bearing Roller Conveyor Chain Standard Series

Model number RF□□□□□BR・BF-DT・AT~

Our unique structure with cylindrical bearing inside the rollers allows for the smooth running of general-purpose conveyor chains (DT Series).
It has approximately 5 times longer wear life.

  • - The motor power required can be reduced by approximately 1/3 and the chain size can be reduced by 2 sizes.
  • -Contributes to reducing the cost of the entire facility.
  • - The dimensions are the same as the R roller and F roller of RF conveyor chain.
  • Ambient temperature: BR, BF: -20℃ to 80℃
size

RF03 tons to RF36 tons
For inch sizes,
please contact us

Attachment Type

A1, A2, A3, K1, K2, K3

Roller type

BR roller, BF roller

Bearing roller conveyor chain  Anti-Dust Series

Model number RF□□□□□DBR・DBF-DT・AT~

By using a labyrinth structure and seals, this conveyor chain is less susceptible to dust intrusion than standard Bearing Roller Conveyor Chain.

  • - The labyrinth structure and seal make it difficult for dust to enter, and in dusty environments the wear life is three times longer than the standard specification.
  • -There are two types of rollers: DBR and DBF.
  • ・使用雰囲気温度:-10℃~80℃
size

RF 10 tons to RF 36 tons
For inch sizes,
please contact us

Attachment Type

A1, A2, A3, K1, K2, K3

Roller type

DBR roller, DBF roller

Bearing Roller Conveyor Chain Standard Lube Free Series

Model number RF□□□□□EBR・EBF-DT・AT~

Special cylindrical bearing with self-lubricating properties are used between the bushing and roller, so the roller part
It can be used Lube-free, and no additional oil is required.

  • -There are two types of rollers: EBR and EBF.
  • ・使用雰囲気温度:-20℃~50℃
  • *Please note that Maximum allowable load differs from that of the standard series. The allowable roller load is the same.
size

RF03 tons to RF36 tons
For inch sizes,
please contact us

Attachment Type

A1, A2, A3, K1, K2, K3

Roller type

EBR roller, EBF roller

Bearing Roller Conveyor Chain Completely Lube Free Series

Model number RF□□□□□AEBR・AEBF-DT・AT~

No additional oil is required between the pin and bushing or between the bushing and roller.

  • - Steel rollers and special cylindrical bearing are installed alternately inside the roller.
    Furthermore, by crimping and sealing a solid lubricant onto the inner surface of the bushing, no additional lubrication is required between the pin and bushing or between the bushing and roller.
  • -There are two types of rollers: AEBR and AEBF.
  • Please note that Maximum allowable load differs from that of the standard series. The allowable roller load is the same.
  • ・使用雰囲気温度:-20℃~50℃
size

RF05 tons to RF26 tons
For inch sizes,
please contact us

Attachment Type

A1, A2, A3, K1, K2, K3

Roller type

AEBR roller, AEBF roller

Bearing Roller Conveyor Chain Water Resistant Lube Free Series

Model number RF□□□□□WEBR・WEBF-GS~

By alternately placing stainless steel rollers and special cylindrical rollers inside the roller, it can be used in an environment where water splashes.
It can be used without additional lubricating.

  • -There are two types of rollers: WEBR and WEBF.
  • ・使用温度範囲:0℃~50℃
size

RF03 tons to RF36 tons
For inch sizes,
please contact us

Attachment Type

A1, A2, A3, K1, K2, K3

Roller type

WEBR Roller, WEBF Roller