Identify the complete system
Record whether the current setup is EROWA-compatible ITS, System 3R-compatible Macro, or another interface. A similar product shape is not enough to establish compatibility.
Engineering guide
How to confirm workholding compatibility before ordering.
Use the existing interface, original reference, machine mounting and application details to reduce selection risk for EROWA- or System 3R-compatible components.
Five checks
Match the complete setup, not only the system name.
Compatibility depends on the interface and the surrounding components. Confirm each point before treating a product as interchangeable.
Find the original reference
Photograph or record the original chuck, holder, pallet, spigot or drawbar number. The reference helps narrow the comparison, but the complete assembly still needs review.
Check the mounting arrangement
Confirm machine-table hole pattern, base dimensions, vertical or horizontal orientation, drawbar type, flushing or air-cleaning requirements and available installation space.
Separate product and reference data
Treat PLUS AUTO dimensions and specifications as product data. Parameters identified as EROWA or System 3R reference data describe the comparison interface and are not automatically PLUS AUTO test results.
Send evidence when fit is uncertain
Provide a drawing, catalogue page or clear installation photos showing the interface and mounting side. Include the machine, application, quantity and the PLUS AUTO model under review.
Reference-first review
Turn an old product link or reference number into a usable comparison.
A legacy URL, catalogue number or product label can identify the likely family. It does not replace a check of the current mounting, actuation and surrounding components.
Start with the exact reference
Record the full PLUS AUTO model or original-system reference. Keep suffixes, dimensions and chuck or holder family names because similar-looking variants can use different mounting or actuation details.
Separate current product data from reference data
PLUS AUTO dimensions and stated performance describe the PLUS AUTO product. Values labelled as EROWA or System 3R catalogue data describe the comparison product and should not be assumed to be PLUS AUTO test results.
Confirm the installed assembly
For a chuck, include the base, hole pattern, air supply, opening method and cleaning arrangement. For a holder, include the chuck interface, holder profile, material, electrode geometry and any automation gripper.
Examples to review
Products with different compatibility questions.
These examples show why the reference, mounting arrangement and application should be reviewed together.
WEDM setup review
Positioning requirements change the fixture choice.
For wire EDM, confirm the workpiece shape, adjustment method, machine mounting and cutting clearance—not only the ITS interface.
Workpiece and adjustment
Record the workpiece shape and whether the job needs fixed, angular or three-axis positioning before comparing fixtures.
Machine mounting
Confirm the machine-table grid or mounting arrangement and make sure the fixture orientation matches the intended cut.
Wire path and clearance
Provide a drawing or installation photo when surrounding clearance, wire access or the complete interface arrangement is uncertain.
Independent manufacturer notice
EROWA and System 3R product names and reference numbers are used only to identify compatibility. PLUS AUTO is an independent manufacturer and is not affiliated with or endorsed by either company.