Production-team experience in compatible precision workholding.
Independent precision workholding manufacturer
Built around the interface.
PLUS AUTO helps manufacturers maintain and expand established workholding systems with clearly identified compatible components, controlled production and practical technical support.
Our focus
Compatible tooling for real production requirements.
Precision components for EDM, WEDM, CNC machining and automated production.
PLUS AUTO manufactures precision workholding components in Chang'an, Dongguan, China.
Our production team brings more than 20 years of experience in EROWA- and System 3R-compatible workholding. The range includes chucks, holders, pallets, spigots, drawbars and related interface components.
Compatibility is reviewed from the complete setup—not the product shape alone. We ask customers to confirm the current system, original reference, machine, mounting arrangement and application before ordering.

Made for dependable production
Manufacturing and inspection under one roof.
Machining, dimensional inspection, assembly and final checks are coordinated around the intended workholding interface and application.
See manufacturing & quality →EROWA-compatible ITS and System 3R-compatible Macro product families.
Machining, assembly and inspection coordinated around the required interface.
How we work
From reference to confirmed setup.
Clear source notes and compatibility checks help customers compare products without confusing reference data with PLUS AUTO specifications.
Identify
Start with the existing system, chuck or holder, original reference and machine application.
Compare
Review interface, dimensions, mounting, drawbar or spigot, operating method and surrounding components.
Confirm
Resolve uncertain fit with drawings, installation photos and a product-specific compatibility check before ordering.
