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

Special Large size conveyor chain (steel equipment)

With our extensive track record and experience, we can propose the ideal conveyor chain for applications such as conveying thick plates and shaped steel at steelworks, direct conveying of cold coils, hot coils, and slabs, and for pulling draw benches and carts.

In addition to the types listed below, we also offer conveyor chains suitable for heavy loads, high speeds, and high temperatures in steelmaking equipment. Please refer to Selection Guide for more information.

Block Chain

Model number NF□□□□□~

This chain has excellent rigidity and high tensile strength.

  • -A chain consisting of two outer plates, one or two Inner link, and a pin.
  • - The structure has excellent rigidity, and the tensile strength per unit of chain mass is high and strong.
  • ・It is mainly used for the following purposes. Please contact us regarding attachments.
    • For towing carts, etc.
    • When transporting high-temperature items (direct loading)
    • Draw bench
size

NF30 tons to NF280 tons

Attachment Type

Various types are available, including flow attachments and dog attachments.

Deep Link Conveyor Chain

Model number RF□□□□□R-DL□□~

A wide plate and R rollers with low friction resistance are attached, and heavy objects can be placed directly on the plate.
It's a chain.

  • ・We also manufacture Bearing Roller Conveyor Chain that use R rollers and chains with top plates.
    can.
  • - The main chain is compatible with various conveyor chain specifications.
  • - Suitable for use on conveying lines for thick plates, structural steel, etc. in steel mills, as well as on automobile assembly lines and container assembly lines.
Chain specifications

Compatible with various specifications such as DT Series and AT Series.

size

RF03トン~RF52トン

Attachment Type

none

Roller type

R Roller

Coil Transfer Conveyor Chain

Model number CT□□□□□~

This is a large chain with extremely high rigidity, suitable for cold coils, hot coils, slabs, etc. in steelworks.

  • - We use our own unique roller bearings, which have cylindrical bearing placed between the chain rollers and bushings.
  • - It is sturdy and has low rolling resistance (friction coefficient 0.03). Furthermore, the top plate can be easily attached and detached, making maintenance easy.
  • ・使用雰囲気温度:-20℃~200℃
size

CT60 tons to CT200 tons

Attachment Type

Top plate