The Erix Back Spotfacing Tool

When Consistency Matters

Our Spotfacing Tools

Technical specifications and tool selection 

Erix spot facing tools are available for hole diameters ranging from 4.5 mm to 69 mm, with options including cylindrical and Morse taper spindles. Using high-speed steel and carbide inserts, our tools can be tailored to handle different materials and machining scenarios, providing the flexibility needed for diverse industrial applications. 

What is spot facing? 

Spot facing is a crucial machining process used to create a smooth, flat surface around a pre-drilled hole. At Erix Tool, our spot facing tools offer reliable solutions to achieve precise results every time. By ensuring an even and parallel surface, spot facing allows secure mounting of components like nuts, bolts, and bearings—key to product performance and longevity. We take pride in our innovative back spotface tools, engineered for consistency and precision. 

How spot facing is performed with Erix Tool 

Spot facing with Erix spot facing tools is both efficient and straightforward due to our smart design. Our tools feature a spindle and a unique cutting wing that folds into the spindle upon entering a pre-drilled hole. This design allows for both front and back spot facing in a single cycle, eliminating unnecessary steps and saving time and resources. 

Required tools and equipment 

  • Smaller hole sizes: HSS wings with integrated cutting edges. 
  • Larger hole sizes: Carbide inserts of ISO K20 or ISO P40 for enhanced performance. 
  • Heavy-duty applications: Center-locked inserts for machining stainless steel and alloys, providing extra durability for tougher materials. 

Step-by-step: Spot facing 

  1. Prepare the workpiece – Apply a few drops of light oil to the hole to ease tool guidance. Use cutting fluid when machining steel for smoother operation. 
  2. Inspect the tool – Ensure the insert quality is intact and replace if necessary. Verify that the wing rotates freely. 
  3. Set spindle speed – Adjust speed based on the material being machined, following the recommended guidelines. 
  4. Feeding – Start the spindle counterclockwise, feed quickly until the wing reaches the workpiece, then reduce the feed rate to a maximum of 0.2 mm/rev to ensure proper wing deployment. 
  5. Spot facing – With the wing rotating freely, apply the recommended feed rate. The wing will swing out using centrifugal force, creating the required surface. 
  6. Completion – Quickly retract the tool after spot facing, reducing the feed rate to fold in the wing before fully withdrawing the tool. 

 

Why choose the Erix back spot facing tool? 

The Erix Back Spot Facing Tool is built for reliability and efficiency—vital qualities for industries where downtime is simply not an option. Thanks to a flexible wing replacement design, our tools are also cost-effective for automatic facing applications. This versatility helps eliminate time-consuming manual tasks, resulting in significant production time savings and consistent results. 

Applications of spot facing 

Spot facing is vital across multiple industries, including manufacturing and aerospace, where precise surfaces around drilled holes ensure secure fastening points and balanced load distribution. This process directly enhances product integrity and operational reliability. 

Comparison between spot facing and counterboring 

When a durable and flat surface is required around drilled holes, spot facing is often the better choice compared to counterboring. Spot facing ensures a parallel, smooth surface that is essential for proper component fitting. Erix tools make this process simple and consistent, making them perfect for a variety of applications. 

Contact us for more information 

At Erix Tool, we’re here to help you find the perfect back spotface tool for your requirements. Contact us today for a free consultation and discover how our high-quality spot facing tools can enhance your machining processes! 

 

back spotfacing

Four good reasons

CONSISTENCY

Eliminating manual processes ensures 100% consistency between the critical dimensions.

EFFICIENCY

Complex front and back spotfacing routines can be carried out in a single machining cycle, resulting in vast savings.

COST-EFFECTIVE

Its versatile wing replacement system makes it a cost-effective option for automatic back spotfacing applications.

RELIABILITY

The Erix cutting tool’s solid dependability is ideal for situations where downtime is unacceptable.

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Technical information

spot facing with erix tool
  • All Spindles from ø10 upwards (hole size) with cylindrical shanks are designed for Weldon fastening (DIN 1835B).
  • All Spindles from ø10 upwards (hole size) are available with a Morse Taper (27-25-MK3) rather than a cylindrical shank.
  • We recommend using our extra strong HSS wing for really tough machining projects.
  • Erix Tool spotfacers are fitted with grade ISO K20 inserts as standard.
  • We supply grade K20 brazed inserts for HSS spotfacing wing sizes 020 and 030 (grade P40 for steel).
  • As high volumes of materials like stainless or high-alloy steel are tough on the clamping system, we supply SPMA centerlocked inserts for ≥ 060 wings with SPUN inserts.
  • Spotfacers with ≥ 30 mm wings are fitted with a guide tang to ensure they remain in position even at low speeds and when milling horizontally.
  • Spindles with cylindrical shanks for holes  ≥10 mm have coolant through as standard.

Please refer to our catalogues* for full information about capacities, dimensions, combinations, materials and standard part details.

* Available in both metric (mm) and imperial (inches) measurements.

Back spotfacing tip:

Use Coolant Through whenever possible. It has several advantages: it breaks up and removes chips, it keeps spindles and wings cool and it prevents workpiece surfaces from hardening.