Basic Conveyor Types	Conveyed object
	Solid Conveyance	Chain Type	Bulk items	Chain Type
Direct Loaded on the Conveyance	・Horizontal Slat Conveyor	RF- [BR/BF] RF-(NB) RF RF-[DBR/DBF]	・Apron/Pan Conveyor	RF RF-(KG/KA)
	・Push Conveyor, Tow Conveyor, Roller Coaster	RF RF-(NB) NF RF-<SR>
	・Free Flow Conveyor	RF-[VR] RF-<SR> RF-<TR>
	・Standard Chain Conveyor	RF NF RF-(DL)
Suspension Conveyance	・Trolley Conveyor	RF RF-<TRO>	・Bucket Elevators	RF B
	・Tray Elevator	RF NF	・Fly Ash Bucket Conveyor	RF-(FB)
	・Vertical Parking Tower	RF Specialty Chain	・Bucket Type Continuous Unloader	Specialty chain
Push Conveyance, Frictional Conveyance	・Push Conveyor	RF NF RF-(NB)	・Scraper/Flight Conveyor	RF RF-(AM/AP) RF-(FG/FP)
	・Horizontal Revolving Conveyor	RF RF-(NB) RF-<GR>	・Flow Conveyor	RF NFX
			・Drag Chain Conveyor	WD

When selecting conveyor chain type, it is necessary to identify the physical properties of the materials conveyed. Method of conveyance and chain conveyor type should then be determined, keeping cost performance in mind.

Three basic types of conveyor are shown on the above table, which can be used for determining conveyor chain type.

Key Points in Determining Conveyor Chain Type

・Adopt a loading type conveyor to reduce the running resistance of the conveyor chain when conveying materials, which will lead to energy savings. Bearing Roller Conveyor Conveyor Chain and Coil Transfer Chain are ideal. ・Design layout so that powdery or liquid materials, or materials that will promote chain wear, are prevented from directly contacting the conveyor chain. ・Use a sealed conveyor, such as a flow conveyor, to prevent loose material from flying during conveyance. ・When using conveyor chains to convey very corrosive material, or in corrosive environments, select a conveyor chain with suitable specifications. (See "Corrosion Resistance to Various Kinds of Solvent" )

Refer to “Roller Types” in the pages of Large size conveyor chain construction.

5.1 Horizontal Conveyor

1) Making a catenary on the drive sprocket side

2) No guide on the return side

For short center distance and slow chain speed.

The mass of the chain on the return side may cause vibration, affecting chain operation.

3) Supporting the chain on the return side with guides or rollers

Contact between chain and guide or roller may hasten chain wear or damage chain as it articulates at the roller or guide.

This may also cause vibration, affecting chain operation. With a long center distance, it is practical to divide the return side into several catenaries.

4) Supporting the entire return side

The return side is entirely supported by rails, which are fixed on the take-up of the driven sprocket. This method absorbs all chain sag, and can also be used in reverse operation.

However, there is no catenary on the drive sprocket lower side, making it necessary to regularly adjust chain elongation through take-up.

Note) Excessive tension from take-up will hasten chain wear.

5) Return side on top

5.2 Vertical Conveyors

5.3 Inclined Conveyors

5.4 Vertical Shaft Conveyors

Installing a guide roller will help the chain run smoother

The following table lists the chain conveyor types and chain series used in conveying typical bulk materials, as well as our recommendations.

Depending on the conveyed items, the same items listed in Table 1 may differ in condition or quality. Determine conveyor type and chain series based on consideration of past performance and careful investigation.

Table 1. Material and Chain Specifications

• 1. Abrasiveness: A → B → C
• 2. Corrosiveness: A (strong acid), B (moderate acid), C (neutral), D (moderate alkali), E (strong alkali)
• 3. Refer to clean specifications.

Conveyed object			Type of Conveyor				Recommended Chain Series	Note
Product name	Wear	Corrosion	Scraper Conveyor	Flow Conveyor	Apron Conveyor	Bucket Elevators
Rice	Low	neutral	○	○		○	DT
Barley	Low	neutral	○	○		○	〃
Wheat	Low	neutral	○	○		○	〃
Soybean	Low	neutral	○	○		○	〃
Corn	Low	neutral	○	○		○	〃
Wheat Flour	Low	neutral	○	○		○	〃
Starch	Low	neutral	○	△		△	〃
Sugar Cane	Low	neutral	○		○		DTA
Bagasse	Low	neutral	○				DTA
Sugar Refining	Low	neutral	○	○		○	SS	See Note 3.
Rock Salt	Low	neutral	○	△		△	DT
Mixed Feed	Low	Acid	○	△		△	〃
Soda Ash	Medium	Strong Alkali	○	△		△	〃
Carbide	Medium		○	○	○	○	〃
Glauber's Salt	Medium	Acid		△			GS
Dry Unslaked Lime	Medium	Strong Alkali	○	△		△	DT
Dry Slaked Lime	Low	Strong Alkali	○	△		△	〃
Polyethylene	Medium	neutral	○	△		△	〃
Vinyl Chloride Powder	Medium			△		△	MT
Carbon	Medium	neutral	○	△		△	BT
Activated Charcoal	Medium	neutral	○	△		△	DT
Dry Ammonium Chloride	Low	neutral	○	△		△	〃
Dry Ammonium Sulfate	Medium	Acid	○	△		△	〃
Dry Urea Powder	Low	neutral	○	△		△	〃
Wet Urea Powder	Medium	Strong Alkali	○	△		△	GS
Synthetic detergent	Medium	neutral	○	△		△	DT
Wet Gypsum	Medium	Strong Acid	○	○		○	GS・RT
Dolomite	Medium	Alkali	○	△	○	△	DT	DTA on Apron Conveyors
Dry Limestone	Medium	Alkali	○	△	○	△	〃	DTA on Apron Conveyors
Dry Clay	Medium	neutral		△		△	BT
Cement Clinker	High	Strong Alkali	○	△	○	△	CT
Cement Products	Medium	Strong Alkali		○		○	CT
Dry Wood Chips	Low	Alkali	○	△			DT
Dry Sawdust	Low	Alkali	○	△			DT
Coal	Medium	Acid	○		○		CT
Coke	High	neutral			○	△	BT
Alumina	Medium	Strong Alkali		△		△	CT
Foundry Sand	High	neutral	○		△		BT
Scale	Medium	neutral	○	△		△	BT
Coke Dust	High	neutral		△			BT
Wet Coal Dust	Medium	Acid		△			BT
Clinker Dust	High	Strong Alkali		△			BT
Garbage	Medium		△		○		RT
Incinerated Garbage (Room temperature/ Dry )	Low	Alkali	○				DTA
Incinerated Garbage (Wet )	Low	Alkali	○				RT