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Steiner Autofacer back spot facing tool
Autofacer

Steiner Autofacer — Back Spot Facing Tools

Reach through the bore to automatically machine circular forms on the back side. Face, counterbore, chamfer and spherical radius — with a single tool. US manufactured by Steiner Technologies.

  • Automatic circular form machining on the back side of bore
  • Face, counterbore, tapered counterbore, chamfer, spherical radius and combinations
  • Friction clutch — high reliability
  • Carbide speeds at long length-to-diameter ratios
  • US manufactured — Steiner Technologies, New York

Overview

What is the Autofacer?

The Autofacer is a tool that allows the operator to reach through the bore to the back side of a part and automatically machine a circular form. When the cutter tip passes through the back of the bore, the blade opens and the operation begins. This is made possible by the cutter tip folding into the tool body.

Circular form refers to: face, flat counterbore, tapered counterbore, chamfer, spherical radius and combinations thereof.

Design

Key Design Features

  • Friction clutch mechanism: Highly reliable system that opens and closes the cutter tip, guaranteeing the operation
  • Mechanical lock-open: Cutter tips are mechanically held open during operation — excellent results in interrupted cuts
  • In-bore bearing: The Autofacer body bears in the bore during cutting — safe operation at carbide speeds at long length-to-diameter ratios
  • Custom cutter geometry: Custom inserts and cutter tips manufactured at the NY facility — multiple operations can be combined into one
Steiner Autofacer advantages diagram
Steiner Autofacer design advantages

Configuration

Activation Methods

Autofacer tools are available in different activation methods based on the customer's specific application. The key factors in determining the activation method are production volumes and the machine being used. Our engineers will assist in selecting the appropriate model.

Videos

Steiner Autofacer Application Videos

Back Spot Facing Operation

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Bump Style Autofacer

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Related Products

See Also

Need help with your back spot facing application?

Contact us to determine the right Autofacer model and cutter configuration for your application.

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