Baseline
What the customer was running
- Horizontal impactor using four Spokane Si-Tec® ceramic blow bars
- 250 tons per hour input
- Production of 22,000 tons per set of blow bars
Design improvements reduce wear parts cost per ton by 25%
- Location
- Idaho, USA
- Feed material
- Recycled asphalt product (RAP), 8" minus
- Equipment
- Crush Boss 4156
Parts
- Si-Tec® ceramic blow bar
Photography — Surface
A Si-Tec® ceramic blow bar out of a horizontal impactor after a full set life, wear face lit across the grain so the remaining ceramic reads against the worn matrix.
Measured on site
Production improved from 22,000 tons per set to 27,500 tons per set, a 25% increase.
Crush Boss 4156 — 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.
Objective
What the change was meant to do
- Upgrade blow bar design to improve wear life and increase machine uptime
- Reduce overall wear part costs
Results
What was measured
- Production of 27,500 tons per set (25% improvement)
Value delivered
What it was worth to the operation
- Maintained the same input, output, and gradation while reducing wear parts cost
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 specifiedSend 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