2.4 Plus α Alpha Attachments
Plus α Alpha attachments are the second most frequently used type of modified attachments. These attachments are sorted into three types:
- Hole diameter in an A or K attachment or the length of the pin in a D attachment (Figures 2.28 and 2.29).
- Installing a nut in the hole of an A or K attachment (Figure 2.30).
- Using a different type of attachment (Figures 2.31 (i) and (ii).
Types (1) and (2) are easy-to-order products. Type (3) includes special designs that are available for the convenience of equipment designers. These designs can be used whenever possible for equipment.
Plus α Alpha attachments are available in the following types of chains:
- Special surface treatment (nickel-plated, WP®).
- Made of 304 stainless steel or other metals.
- Lube-free (LAMBDA® series or other type).
Figure 2.28 Changing the Hole Diameter in A or K Attachments
Figure 2.29 Changing the Pin Length in D Attachments
Figure 2.30 Installing a Nut in an A or K Attachment
|Large Chain attachment (over RS180).
|Double pitch with deep link.
|Spec||The upper surface of the link plate has been ground to provide a smooth conveying surface.||Attachment for larger sizes over RS180.||Side plate is higher than the top of the roller.|
|Type||Internally bent attachment.
|Hollow pin with attachment.
|Curved attachment with guide plate.
|Spec||Inner bent attachments are chamfered to protect conveyed materials.||HP chain with attachment.||Curved chain with attachment and guide plate.|
|Spec||Conveying bar-type objects.||Sharp-top attachment is ideal for conveying board-type objects.||Press-fitted bushing is ideal for bearing.|
|Spec||Gripping attachment for thin objects, such as film.||The chain bends in one direction only.||Rubber pads hold the conveyed material from above and below.|
|Heat-treated top plate.
|Bent-end top plate.
|Spec||Rubber pads prevent damage to the conveyed materials.||Improved wear resistance.||Easy lateral transfer of conveyed objects.|
|Type||Inclined top plate.
|Spec||Smaller gap between the plates.||For bottling and canning industries.||Excellent for conveying relatively heavy goods.|
Figure 2.31 (i) Other Types of Attachments
|HP with guide roller.
|Curved chain with guide roller.
|Spec||Guide roller prevents meandering.|
|Type||Threaded extended pin.
|Extended pin with clip.
|Spec||Thread for tool attachment with nuts.||Install tool attachment with clips.||Suitable for conveying on the pins.|
|Type||Double strand top roller
|Top roller with guide attachment.
|OBR with attachment guide.
|Spec||Wide-top roller width.||For long conveyor line.||For long conveyor line.|
Figure 2.31 (ii) Other Types of Attachments