This page hosts the structura files for the Minecraft item categorizer that can sort items at 27,000 Items per hour, or 3 hopper speed, or 15.5 Shulers per hour.
The material list for 4 slice version:
Glass: 7 stacks
Hoppers 5 stacks
Powered Rails 3 stacks
Chests: 3 stacks
Solid blocks: 3 stacks
Observers 1 Stack
Repeaters 32
32 Rails
Redstone Blocks 20
Water 16
Lava 8
String: 8 stack
Comparators 5
Scafolding 2
Target blocks 2
Sticky pistons 2
Redstone Lamp 2
Lever 1
Dispensor 1
Soul sand 1
Activator Rail 1
Detector Rail 1
For each additional slice
Glass 1 Stack
Hoppers 1 Stack
Powered rails 30
Chests 32
Solid Blocks 25
Observers 10
Repeaters 6
Rails 6
Redstone block 4
Redstone Torch 3
String 2
Lava 2
Water 2