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Slotter Yoke Upgrade

yoke upgrade isolated Sauer System now offers a yoking system that replaces the OEM style yokes that utilize a carbide button system. The carbide button yokes have created a challenge for many maintenance departments for the following reasons:

The carbide buttons are relatively time-consuming and difficult to set correctly, even with full knowledge of the procedure. Setting the buttons for 17 total heads is generally considered a weekend job.
A maintenance technician without prior knowledge of how the system works may not even know how to correctly adjust the yokes.
Over time, as dust and debris collect inside the yokes, it may not even be possible to set them correctly.

Sauer System has developed a yoking system where each yoke can be adjusted in a matter of seconds and where visual inspection is easy.

yoke upgrade

The new yokes utilize a spring-loaded composite block mechanism that allows for extremely quick and accurate adjustments.

The cut-away diagram shows the internal springs. The wear blocks are held closed with an end bolt. When the composite block pieces wear down, loosening the end bolt allows for the pieces to spring out and compensate for the wear. Tightening the bolt holds the adjustment in place.

As an added benefit, the wear blocks have clearance such that they are self-aligning.

System Benefits Include

Productivity

Less operator intervention to move heads to the exact right position. (up to 30 minutes per shift)
Faster run speeds due to increased box squareness. (up to 25% faster)

Quality

Square boxes - the yokes prevent the male creasers from walking on the shaft, creating off-center score lines.
Cleaner slotting - the yokes keep the male and female slotter heads aligned.

Cost Savings

Male and female slotting knives will last far longer than before because the slotter heads stay aligned. (annual savings up to $15,000 USD)
Composite yoke wear blocks will outlast carbide buttons by over a year. (annual savings up to $3,000 USD)
Wear plates typically no longer need to be replaced. (annual savings up to $10,000 USD)

Uptime Considerations

Adjusting the yoke blocks takes no more than 45 minutes for all heads. Setting the carbide buttons typically takes up to 8 hours. (saves up to 32 hours per year)
Less slotting knife changeouts. (saves up to 12 hours per year)