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Table conversion increases throughput by 40%

Location
Tennessee, USA
Feed material
Sandstone
Equipment
Spokane Model 66

Parts

  • Spokane Industries five-shoe table
  • Si-Tec® ceramic shoes
Photography — Scale

A five-shoe table assembly on the shop floor before it ships, shot from above so the shoe layout reads as a system rather than as loose parts.

Measured on site

Recirculation rate reduced from 25% to 12.5%, a 50% improvement.

Spokane Model 66 — one machine, one feed material

The record

Read the baseline first.

The improvement only means something against what the machine was doing before it. Published 23 January 2020.

Baseline

What the customer was running

  • Three-port rotor running at 1575 RPM with a Spokane anvil ring
  • 100 tons per hour input; material backed up in the rotor, causing frequent production interruptions
  • Output of 75 tons per hour
  • Recirculation rate of 25%

Objective

What the change was meant to do

  • Installation of a Spokane Industries five-shoe table fitted with Si-Tec® ceramic shoes
  • Increase machine throughput
  • Reduce table RPM
  • Reduce recirculation

Results

What was measured

  • 20% increase in input (100 to 120 tons per hour)
  • 50% reduction in recirculation rate (25% to 12.5%)

Value delivered

What it was worth to the operation

  • 40% increase in throughput (75 to 105 tons per hour)
  • Table speed reduced to 1150 RPM, reducing wear cost, energy costs, and machine maintenance

Read this too

What these numbers are not.

A wear part that lasts twice as long in Tennessee sandstone can do nothing of the kind in Idaho RAP, because the rock, the tonnage, and the geometry are different. Nothing here is a warranty and nothing here is a specification. What SI will do is measure your part in your circuit and put the numbers against the ones you have now.

How Si-Tec® is specified

Send us what your part does now.

Service life in hours or tons, the feed material, and photographs of where the wear actually is. That is enough to say whether Si-Tec® changes anything in your circuit.

Technical review within 48 hours