AUTOFACER®

Save Time, Decrease Cycle Time

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The Autofacer is a tool that allows machinist to reach through a hole and machine a circular feature* on the back side of the part automatically. This is accomplished by folding the cutting blade into the shaft of the tool body allowing the tool to pass into the part. Once the tool has entered the part, the cutting blade is mechanically opened and cutting may begin.

* Circular features might include a spot face, counterbore, countersink, chamfer, spherical radius, or some combination thereof.

Features

Benefits

Applications

Industries

Autofacer: Multiple Activation Methods

cone-activation

Cone

How it Works

  • Cone grips the face of the workpiece to open and close the blade (must be a machined surface)

Advantages

  • Reliable performance on any machine tool, CNC or manual
  • Cost-effective alternative to high-production tooling
flywheel-activation-method

Flywheel

How it Works

  • Utilizes the inertia generated during rapid spindle acceleration to open and close the blade

Advantages

  • Ideal for modern CNC machines with rapid acceleration and deceleration
  • Cost-effective alternative to high-production tooling
pad-or-ring-activation-method

Pad or Ring

How it Works

  • Pads grip the inside diameter of the pilot hole to open and close the blade

Advantages

  • Ideal for hole sizes greater than 2.25 inches where front (& back) spotfacing is required
torque-bar-activation-method

Torque Bar

How it Works

  • Utilizes an anti-rotation device during spindle reversal to open and close the blade
  • A Torque Bar Driver or an Arrestor-rod is required

Advantages

  • Perfect for high-production runs that require the maximum degree of reliability
  • Ideal for transfer lines and CNC machines
air-or-coolant-application-method

Air or Coolant

How it Works

  • High-pressure coolant drives the blade open
  • Spring-pressure closes the blade when the coolant is shut off

Advantages

  • Simple to set up and run
  • Perfect for high-production runs
  • Ideal for machines with high-pressure, filtered coolant systems
bearing-guided-activation-method

Bearing Guided

How it Works

  • A tapered pilot locates on a process bore supporting the tool a full 360 degrees
  • Adjustable insert cartridge
  • Available in Torque Bar activated configurations

Advantages

  • Excellent size control and repeatability
  • Capable of holding high-precision tolerances of .0001" (.0025mm)
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Extended Range

How it Works

  • A rack and pinion gear opens the blade like a jack knife
  • Available in Torque Bar and Coolant activated configurations

Advantages

  • Extended spotface-to-hole size ratio (largest in the industry)
  • Perfect for internal machining in differential gear cases

The 5-Step Steiner Process

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Our Manufacturing Resource Center

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Calculator

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Case Studies

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