CNC Machine Door Interlock Key (4mm Stainless Pin) – Fits Mazak, Hardinge & More

Streamline machine setups, indicator alignment, and fixture positioning with this precision 3D-printed CNC door interlock setup key. Supplied complete with a 4mm stainless steel locating pin, this key provides a precise, reliable fit for safety interlock switches on popular CNC machining centres and turning centres.

Key Features & Engineering Details

• Stainless Steel Locating Pin: Fitted with a 4mm stainless steel pin mirroring the OEM key profile for consistent, reliable engagement without wearing out the switch mechanism.
• Chemical-Resistant Material: 3D-printed in high-density, chemical-resistant engineering filament engineered to withstand continuous exposure to neat oils, synthetic coolants, and tramp oil.
• Multi-Brand Machine Fitment: Designed for Mazak and Hardinge interlock switches, while fitting many other major machine tool brands (Doosan, Hurco, CMZ, Haas, etc.). (Please verify your key dimensions against our diagram before ordering).
• 30+ Years Toolroom Heritage: Custom-designed in CAD and produced by an engineer with over 30 years of CNC machining and toolmaking experience.

Specifications & Compatibility

• Compatible Machines: Mazak, Hardinge, Doosan, Hurco, and other CNC lathes and milling centres matching key profile
• Pin Specification: 4mm Stainless Steel Pin
• Material: Chemical-Resistant Engineering Polymer
• Standard Colour: Machine Red / Black

Package Includes

• 1x 3D-Printed Interlock Key with Integrated 4mm Stainless Steel Pin

⚠️ Safety & Operational Notice:

This key is designed strictly as a setup aid for manual setup, indicator work, and probing procedures by qualified engineers. It is NOT intended to bypass or override machine safety interlocks during automatic production runs. The purchaser assumes full responsibility for proper and safe usage in accordance with local workshop safety regulations.

Need a custom pin diameter or different interlock key shape for older or specialised machine switches? Message us directly prior to ordering—we can adjust CAD geometry to suit your setup!