Logan Air Threading Clutches For Your Wickman Multi-Spindle Automatics
Add Proven Quality and Productivity to Wickman Screw Machines
Direct Lube Line for Lubrication
Self-AdjustingTM disc pack - No slippage!
More Torque - 230% more torque than your Herbert #4 (273 lb. ft. @ 100 psi)
Utilize your existing 3 tabbed clutch gears
View of a new 3 tabbed Hi-Capacity Logan Air Threading Clutch
Logan Air Threading Clutches For Wickman Screw Machines
Self Adjusting Disc Pack
Today, a new solution exists to engage and disengage threading operations that offers greater reliability, self-adjustment, consistent performance, more torque, and almost maintenance free operation (figure 1). Logan Clutches are simple to maintain because they compensate for disc wear automatically. And unlike mechanical linkages, air pressure provides consistent force to provide positive transfer of torque, and extremely accurate tap depths; depths within at least 1/4 turn!
Maintenance-Free Operation - Increased Productivity
Maintenance-free operation means more uptime, because youll no longer have to repeatedly shut down the machine to make adjustments for disc pack wear. And, faster acting, more reliable clutches mean shorter cycle times. All of this leads to increased productivity, thats why Logan Clutches are featured as Original Equipment on all National Acme, New Britain, and Davenport Screw Machines. Retrofitting your Wickman Automatic with a Logan Air Threading Clutch will save you thousands of dollars by lowering operating costs.
New 3 Tab Design Simple to Install
Simply replace your mechanical Herbert Multi-Grip Clutch with new, dimensionally interchangeable Logan Air Threading Clutches. These new Logan Clutches are designed to fit within your existing 3 slot clutch gears, or drive cups (See figure 2). In addition to Air Threading Clutches, Logan offers Electro-Pneumatic Start-Up Kits, and Accessory Packages which come complete with all of the valves, hose, and limit switches, necessary to make the switch from mechanical to Logan quick and easy.
Air Actuation Logan is More Reliable than Electromagnetic Clutches
Logan Air Threading clutches operate at a consistent rate based on air pressure. Electromagnetic units maintain residual magnetism, which hampers engagement and disengagement, thus increasing the idle time between speeds. Using shop air also eliminates the magnetic attraction of foreign particles to the bearing and disc pack which cause electromagnetic clutches to become sluggish and fail prematurely. Plus Logan clutches transmit much more torque within a smaller envelope.
View of a Logan Air Threading Clutch installed in a 16 Wickman
Direct Air Connection:
Fits within existing clutch gears or drive cups
Logan Air Threading Clutches for all Wickman Screw Machine Sizes
How They Work
Logan Air Threading Clutches employ the original drive cups or clutch gears to drive the threading spindle.
Change of speed is accomplished by a limit switch and a solenoid activated, directional control valve. At the prescribed depth, the limit switch is tripped by the threading slide shaft, shifting the Low speed clutch to the High speed clutch, allowing the tap to back out. Slow speed for tapping; Fast speed to back out.
High Torque / Small Envelope Pressurizing the Logan clutch cylinder-piston assembly forces the piston to clamp and lock the friction and steel separator discs. Torque is transmitted through to the drive cup or clutch gear slots. When pressure is removed, release springs separate the separator discs
Convenient to Maintain
Logan clutches are self-adjusting.
Piston travel increases automatically to accommodate disc wear.
Logan Clutches do not require linkages, lever arms, adjusting collars, dog levers, spring pins, yokes, clutch sleeves, etc.
At Air Threading service time, in-stock disc pack, seal kit and bearing repair kits, along with factory installation data sheets, simplify maintenance.
Here is How to Order:
Specify make or model and year of the machine. Provide Part number and brand of clutch that is being replaced.
Confirm bore, keyway, axial length of the clutch. Indicate if you would like to purchase our basic pneumatic electrical and accessory package.
There is a Logan Air Threading Clutch for almost every screw machine produced.