Guide > Gravity Conveyor

by admin on August 31, 2011
gravity_roller

Gravity Conveyor Information

Used Gravity Roller ConveyorSeveral types of gravity conveyor are available for different applications. Below are some images and information on the different types and uses of gravity conveyor. If you have any questions about the best conveyor solution for your operation, please contact an SJF sales professional at 800-598-5532 or click on the image at left to view our entire used conveyor inventory.

Gravity Conveyors are non-powered, free flowing conveyors used in a push or level application to facilitate product movement. They can also be set up with declining stand heights to allow product to flow from a high to a lower elevation. Gravity conveyors are available in skate wheel or roller configuration. Both types can be used with a variety of powered conveyors to form a complete conveyor system.

The type of load will determine the type of conveyor to use.

Load Description Gravity Weight
Conveyor Type Wheel Wheel Roll Roll Average Pitch Required for Gravity Flow(per 10 foot section)
Smooth Flat Surface Level Incline Level Incline
0 to 5 #
5 to 25 #
25 to 40#
40 to 80 #
Over 80 #
Hard(Tote Pans)
A
A
A
B

Flow Is

Marginal

Do Not

Guarantee
2 1/2 “
2″
1 1/2″

Potentially

A

Dangerous

Load-

Contact SJF

 
Soft (Cartons)
A
A
A
B
6″
6″
5″
Convex Surface(Some Totes)
A
A
B
B
4″
3″
3″
Concave Surface(Chime Drums, Some Totes, Boxes)
X
X
A
A
3″
3″
2″
Plyable (Bags)
B*
B*
X
X
-
12″
10″
Mesh (Wire Baskets)
X
X
B
B
3″
3″
2″

Legend:
A = Best Option
B = Second Choice
X = Do Not Use
* = Special laned pattern must be used only for dense packed multi-wall paper bags.

Types of Gravity Conveyor

Gravity Roller ConveyorGravity Roller Conveyor

Gravity Roller conveyors can be used when conveying flat, smooth bottomed surfaces as well as most items with an uneven bottom surface such as drums, pallets, cans, molds, etc.

Varying load conditions, up to 3,000 pounds, can be handled using different frames and rolls.

  • Roller conveyor can be more economical than skatewheel whenever the roll centers can be spread out.
  • Typically sold in ten foot sections
  • Various sizes available to meet your needs

Gravity roller curves can take your conveyor around corners or obstacles.

  • Choose from 45º or 90º curves
  • Galvanized steel or aluminum frame

Skatewheel ConveyorSkatewheel Gravity Conveyor

Skatewheel is best when conveying flat, smooth bottomed surfaces such as cartons, tote boxes, trays and plywood or masonite skids.

Popular Wheel Pattern Options:  12” Wide 10 WPF (wheels per foot), 18” Wide 16 WPF, 24” Wide 20 WPF

Skatewheel conveyor curves take your conveyor around corners or obstacles.

  • Choose from 45º or 90º curves
  • Galvanized steel or aluminum frame

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