Increase Tool Feed Rates In Multiple Speeds
Tired of repairing and replacing electromagnetic spindle drive clutches and clutch coils in your Ultramatic? Logan has the answer. Logan has developed a simple 4-Speed Spindle Drive Retrokit package which increases tool feed rates in multiple speeds and reduces idle time between speed changes on your No. 2 and No. 3 Ultras.
Consistent, Accurate, Reliable Productivity
It’s simple - Air actuated Logan clutches can cycle more efficiently and effectively than the old style electromagnetic clutches - giving you consistent, accurate, reliable productivity. Old-style electromagnetic clutches are renowned for creating residual DC magnetism, which hampers electromagnetic clutch engagement and disengagement - creating unwanted machine idle time, downtime and maintenance headaches.
Run more aggressive cycle times!
Mr. Dewey Lambert of United Mfg., Washington State: “I’ve been using Logan Clutches in my Ultramatics for three years. They haven’t missed a beat. I can reliably change the spindle speeds and run more aggressive cycle times–without the hassle, downtime, and expense that I encountered with the old-style electromagnetic base clutches. Each time a magnetic clutch fails–I replace the set with Logan Clutches!”
Each Logan Spindle Drive Retrokit is furnished complete with Clutches, Drive Cups, Sprockets, an Electrical-Pneumatic Start-up Kit, and Detailed Schematics

Consistent, Reliable Productivity
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Effectively Increase Tool Feed Rates in Multiple Speeds
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Reduce Idle Time Between Speed Changes
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Eliminates DC Circuit for Base Clutches
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Cycle Spindle Speeds More Aggressively Without Damaging the Base Clutch
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Reduces the need to use left-handed tooling by preserving the four-speed option
Reduce Maintenance Costs
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Eliminates Magnetic Attraction of Foreign Particles to Disc Pack and Bearings.
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Crisp, Positive Clutch Engagement–No Slippage
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Factory or Field Retrofitted
Convenient to Maintain
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Logan Clutches are Self-AdjustingTM. Piston travel increases automatically to accommodate disc wear.
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Logan Clutches are Air Actuated and cycle more efficiently and effectively than the electromagnetic DC clutches.
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At Logan Clutch, service time, Disc Packs, Bearing Kits and Seal Kits, along with factoryinstallation data sheets simplify maintenance.