Automated lines for processing, assembly, inspection, etc. have linear base machines (intermittent transfer conveyors) that ensure positioning accuracy. Chains are used as part of the transfer system, but with normal chains, sliding wear between the pins and bushings causes the chain to wear out and stretch, causing the stopping position to become distorted. This requires frequent position adjustment (maintenance).
The solution to this problem is the intermittent conveyor chain. By inserting needle bearings between the pins and bushings, the plain bearings are changed to rolling bearings, minimizing wear and elongation. This enables high-speed, high-precision intermittent positioning.
There are four types of intermittent conveyor chains, and they are used depending on the application and required precision.

The operating temperature range for intermittent conveyor chains is determined based on the range within which the chain's performance can be maintained and the material properties of the parts used. Since this varies depending on the product type, please check your operating conditions and use within the following range.

*Stopping accuracy is the actual value achieved by customers who have used the product in the past. It is not a guaranteed value.

Plastic Roller chains are used in a variety of industries as chains that take advantage of the properties of plastic material, offering the advantages of being lightweight, low noise, and low friction.However, because the operating temperature range for Plastic Roller chains (roller material: polyacetal) is -10°C to 80°C, they cannot be used in preheaters or dryers that exceed 80°C, so steel or stainless steel chains have traditionally been used.
The KV series is Plastic Roller made of super engineering plastic material, and is heat resistant up to 180°C (the main chain is made of stainless steel).
In addition to the features of conventional Plastic Roller chain, it also has chemical resistance, flame retardancy, and conductivity.
It can be used in both dry and wet environments, and is highly functional in equipment such as washers, steamers, boilers, dryers, and heaters.

Double Plus Free Flow Chains lambda specification (Lube-free) has the following two features.

Chain length varies within the tolerance (total length tolerance). However, when using two chains side by side, there are cases where you want to align the relative positions as closely as possible depending on the application (for example, when connecting both chains with a jig such as a slat). In such cases, if you specify "total length combination" when ordering, we can measure the total length of each chain and manufacture it so that the relative difference between the left and right chains is minimal. Also, if the attachment mounting spacing is unusual or if attachments like those shown in the diagram below are attached, the positions of the facing attachments will be misaligned when used side by side. In such cases, if you specify "half-assembled in mirror image, Mirror Image" when ordering, we will manufacture a set of chains so that the attachments are symmetrical.

There are two types of Double pitch: S rollers and R rollers. Their features and uses are as follows:

*1. Comparison of the two when the same chain size and operating conditions are used.

<If the roller is an R roller>

Please use the "Double pitch R roller dedicated sprocket."

<If the roller is an S roller>

You will need to use a "Double pitch S roller dedicated sprocket," but if the number of teeth is 30 or more, you can use a standard RS sprocket. Please note that if you use an RS sprocket with 29 or fewer teeth, the chain pitch and the sprocket tooth pitch will be misaligned, preventing smooth meshing and resulting in poor operation.

When using a curved chain, there is a high possibility of derailment if the guide is only on the roller surface. Therefore, we recommend using two guides: on the roller surface and on the side of the plate.
However, when the plate side is supported, please provide a groove in the guide to allow the pin protrusion so that the pin end face does not come into contact with the guide.Alternatively, we can also manufacture chains with guide plates or guide rollers attached to the side of the chain, with two outer plates stacked on top of each other so that the pin end face is flush with the plate, so please consult us.
Below are some ways to guide you:

When attaching a bar to the GNK1 hole of a double-pitch GNK1 Double pitch (an attachment with holes in the plates on both sides), if the number of teeth on the sprocket is small, the bar will interfere with tooth root.
For the standard GNK1 attachment, please use effective number of teeth actual number of teeth 25T or more indexing teeth.
If the number of teeth is 30T or more, the RS standard sprocket can be used.

Attachments are parts used to attach transport jigs to chains.
It is possible to assemble at the link interval you require.
Below are the standard attachments that are economical and versatile. Please specify the installation interval separately.
(The joints are plated for identification purposes.)

A attachment

This type of chain has an attachment with holes on one side. It is called A1 or A2 depending on the number of holes. (RS type only has A1.)
The photo shows an example where A1 attachment is attached to each link.

SA attachment

This type has a vertical attachment with holes on one side of the chain. It is called SA1 or SA2 depending on the number of holes. (RS type only has SA1.)
The photo shows an example where each link has an SA2 attachment.

K attachment

This type has attachments with holes on both sides of the chain. It is called K1 or K2 depending on the number of holes. (RS type only has K1.)
The photo shows an example with K1 attachments per link.

SK attachment

This type has vertical attachments with holes on both sides of the chain. It is called SK1 or SK2 depending on the number of holes. (RS type only has SK1.)
The photo shows an example with SK2 attachments attached to each link.

AA attachment

This type of chain has attachments with holes on the top and bottom of one side. It is called AA1 or AA2 depending on the number of holes. (RS type only has AA1.)
The photo shows an example with AA1 attachments per link.

WA attachment

This type of chain has a wide attachment with holes on one side. It is called WA1 or WA2 depending on the number of holes. RS chains cannot have attachments attached to each link.
The photo shows an example with WA1 attachments every two links

KK attachment

This type has attachments with holes on both the top and bottom of the chain. It is called KK1 or KK2 depending on the number of holes. (RS type only has KK1.)
The photo shows an example with KK1 attachments attached to each link.

WK1 attachment

This type of chain has wide attachments with holes on both sides. It is called WK-1 or WK-2 depending on the number of holes. RS chains cannot have attachments attached to each link.
The photo shows an example with WK1 attachments every two links.

EP Attachment

This is a style in which the chain pin is extended to one side.
The photo shows an example of an EP attachment attached to each link.

GNK Attachment

This type of chain has holes in the plates on both sides. (Double pitch is limited to S-roller chains.)
The photo shows an example with GNK1 attachments attached to each link.

Hollow Pin Chain

The pins of this chain are hollow. Although the S-roller type is called an S-roller for convenience, it does not have rollers and is a bushed type.
The photo shows an example of an RS-type Hollow Pin chain.

Special Attachments

We also offer a variety of attachment types to suit your needs.

Chain with special attachment (plus α)

Organization

Attachments can be installed at intervals of one link or more, but when installing them at every even number of links, they should be installed on outer link, which makes them convenient for repairs.