6.5 Plus α Alpha Attachments

Although these are not standard attachments, tooling is available. They have been used in a variety of applications, and they have proven to be effective. Please try to incorporate them in your designs.

These attachments are also available with the chains shown below:

Treated-surface type, such as plated chain.
304 stainless steel or other special materials.
Bearing roller or bearing bush specification.

Tables 6.6, 6.7, and 6.8 show the major types of industry-specific attachments.

**Table 6.6** Plus α Alpha Attachments
Chain Name	Attachment	Usage or Application
With CA2	CA2	For a net conveyor that has limited clearance between slats next to each other at sprocket engagement.
With AA3	AA3	To have a reinforced attachment, inserting conveyed jigs into it.
With Reinforced Rib	A2R	To have high flexural rigidity of A attachment.
With MG2	MG2	The same size bucket can be installed.
With AS2	AS2	For installing scrapers or flights.
With AF2	AF2	For installing deep scrapers or flights.
With Centered Bushing	CB	Bars penetrating a chain to be installed.
With WS	WS	For prevention of conveyed materials leakage.
With Extended Pin	EP1 EP2 EP3	A hollow pipe or something to be installed on edge of the pin.
With Stay-Pin	TN	Material to be put directly on stay-pins or wire mesh laced around pins.
With KY	KY1 KY2	For storage of cylindrical materials.
There are two types depending on open and closed position of the attachment.

**Table 6.7** Plus α Alpha Attachments
Chain Name	Attachment	Usage or Application
With Top Plate	TP1 TP2	Not to damage conveyed materials.
With Trolley Roller	TRO	For long-distance and horizontal conveying.
Resists Stick Slip	RFL	For smooth conveying without stick slipping.
With Outboard Roller	OR1 OR2 OR3	For supporting heavy loads.
With Stud Bushings	RFB	For longer wear life of bushing.
With Center Roller	CRR CRF	For easy replacement of roller when it is worn.
With Guide Shoe	GSA GSK	For prevention of chain's winding travel.
With Guide Roller	WGR	For horizontal conveying.
With Solid Pusher	KD1 KD2	To push materials with the pusher.
KD1: Dog not attached to plate KD2: Dog attached to plate.
With Dog Roller	RD	To convey cylindrical materials by pushing.
When cylindrical materials are conveyed, material surface is not damaged, and rotating friction is reduced by using this attachment.

**Table 6.8** Plus α Alpha Attachments
Chain Name	Attachment	Usage or Application
With Tilting Dog	CD	For storage of materials on the table surface.
When material on the conveyor runs relatively faster than the chain, the dog is pushed down from behind to enable material to pass over. The dog then resumes its original position.
With Roller Tilting Dog	RCD	For storage of cylindrical materials.
When the conveyor runs on descent, the dog prevents the cylindrical materials from excessive run. When the material is in front of the dog, the dog is pushed down and can store the materials.
With Ducking Dog	DD	For leaving materials at the designated station.
The dog is supported on the guide rail to convey material. When the guide rail is interrupted, the dog ducks down, leaves the material, and passes beneath it.
With Teeth Dog	TD	For storage of cylindrical materials without noise.
The dog functions best when the chain conveys the material on descent, preventing it from excessive run and storing it. As the dog resumes its original position at the engagement of a sprocket tooth, it does not damage the materials and makes little noise.
With ID	ID	For both storage and pushing.
At the time that the dog pushes the material, if unexpected load operates the dog, it ducks down, leaving the materials as it passes beneath it.