Increase Productivity, Quality and Tap Life with Logan Hi-Capacity Air Threading Clutches on your early and late model Euroturns!

Thousands of lost production hours can be attributed each year to electromagnetic threading clutches that are over or under adjusted, or slipping on your Euroturn – forcing you to compromise on part quality and tap life.

  • Euroturn Pick-off Drive
  • Euroturn Pick-off Drive
  • Euroturn Pick-off Drive
  • Euroturn Pick-off Drive

With Logan air threading clutches. engagement and disengagement is so smooth and positive – Tap depth remains consistent over millions of parts. Also, the load on your tap is uniform, prolonging the life of the tap. Fewer tool changes are necessary, shaving valuable hours from a big job.  Engagement and disengagement are so smooth and positive – Tap depth remains consistent over millions of parts. Logan Hi-Capacity Air Threading Clutches are simple to install and available for almost every Euroturn ever made.

Increase Productivity and Quality

  • Self-Adjusting Disc Pack – No Slippage
  • Extremely Accurate -Uniform Thread Depth
  • Large Cylinder-Piston Area for Maximum Torque

Outperforms Electromagnetic Clutches Too!

  • Transmits more torque and has higher RPM capabilities within a smaller envelope.
  • Eliminates residual magnetism, sticking, slipping and magnetic attraction of foreign particles to disc packs and bearings – reduces downtime

Convenient to Maintain and affordable

  • Increases tap life through positive clutch engagement
  • Eliminates Mechanical Linkages – Lever Arms, Adjusting Collars, Dog Levers, Spring Pins, Yokes, Clutch Sleeves etc.
  • In Stock - Disc Packs, Bearing Kits and Seal Kits, Complete With Installation Data Sheets, Simplify Maintenance

Electrical / Pneumatic Start-Up Kits Available

Start-Up kit Includes valve assembly, pressure gage, limit switch, quick exhaust valves, fittings, bracket, hose and schematics.

Simple To Install

  • Euroturn threading clutch complete assembliesMost Logan Air Threading Clutches Utilize existing clutch drive cups, (clutch gears) and shafts


Hi-Capacity Air Threading

Eliminates mechanical linkage

Cut-away view of a Logan Hi-Capacity Air Threading Clutch.  Utilizes existing drive cups, (clutch gears) and shaft. Fits within existing old-style mechanical clutch envelope and transmits 85% more torque.

Additional Benefits

  • Direct Air Connection No linkages
  • Utilizes existing clutch gears in most cases
  • Gain speed and cycle time by running larger tapping jobs on smaller machines

Logan Air Threading for your Euroturn

Logan Clutches – How They Work

Pressurizing the cylinder forces the piston to clamp and lock the friction and steel separator discs. When pressure is removed, release springs separate the separator discs and maintain a running clearance between separator and friction discs.

The amount of pressure controls the amount of torque.

Speed Changes

Change of speed in threading applications is accomplished through a limit switch and a solenoid activated, directional control valve. At the prescribed depth, the limit switch is tripped by the threading slide shaft, signaling the threading clutch to change speeds. Low speed for tapping - Fast speed to back the tap out. ( Left hand threading applications require the inverse sequence)


Since Logan Clutches operate at relatively high speeds, a steady metered Flow of lubrication is required over the bearing and disc pack surfaces.

Electrical-Pneumatic Start up kits

Each Logan electrical – pneumatic start-up kit is designed to save you time and money during Installation. Kits are furnished with detailed schematics to simplify Installation.

Simple to Install

  • Easily Retrofits with early and late model Acmes
  • Field Installation Service is also available

Here’s How to Order

  • Call Logan and specify machine make and model. Provide part number and brand of clutch being replaced.
  • If necessary, confirm bore, keyway, and axial length of clutch.

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1506 Shuhai Road, Room 302, Building 4
Songjiang Disrict, Shanghai, China 201611
Phone: 01-186-216-408-1199
Email: Click Here

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