6.4 Standard Attachments
Large pitch conveyor chains are usually used with attachments. These attachments are divided into the following categories:
- Standard
- Industry-specific (Plus α Alpha)
- Special
Attachment styles and nomenclature for large pitch chains are the same as for small pitch chain. (See Applications Sections 2.3 to 2.5.)
The standard attachments for large pitch conveyor chains are A, K, SA, SK, G, and RFD type. These attachments are available on the following types of chains:
- Treated surface, such as plated chain.
- 304 stainless steel or other special materials.
- Bearing roller or bearing bush specification.
Refer to Applications Section 2.3 for descriptions of these types of attachments:
- A attachment
- K attachment
- SA attachment
- SK attachment
- G attachment
One plate in a pair has bolt holes. These are used to install buckets on two sets of chains (Figure 6.39).
Figure 6.39 G-4 Attachments
- RFD attachments
The upper side of the link plate is tall; it actually sticks above the R-roller (Figure 6.40). Therefore, conveyed objects can be placed directly on the chain. This is a very economical design.
Figure 6.40 RFD Attachments
