Halder Expander Sealing Plugs | Precision Leak Prevention Solutions | Freer Tool

Professional Halder expander sealing plugs for precision metal fabrication and fluid control.

Freer Tool & Supply is your trusted Michigan distributor for professional Halder expander sealing plugs engineered with German precision for fast and process-safe closing and sealing of boreholes and channels in demanding industrial applications. With over 80 years of manufacturing excellence, Halder delivers closure plugs (blanking plugs) without additional sealants for diverse fluid technology applications.

Fast and Process-Safe Closing and Sealing Without Additional Sealants - Expander sealing plugs are closure plugs for the fast and process-safe closing and sealing of boreholes / channels of fluid technology without additional sealants in a wide diversity of materials. Expander sealing plugs are suitable for permanent closure and sealing - but can also be dismantled if required. Expander sealing plugs are often also referred to as closure plugs or blanking plugs. They can be used in a wide range of industrial sectors for many applications, including hydraulic systems, engine construction, gear construction and fixture construction.

The extensive product range includes different versions from stock:

• Expander sealing plug (steel / stainless steel)
• Expander sealing plug with pull-anchor – installation using user-friendly assembly tools (available as accessories)
• Expander sealing plug with elongated pull-anchor – especially suitable for the separation of two channels

As installation accessories we offer:

• Setting dies
• Assembly tool (mechanically / pneumatically)
• Distance bushing