HÖFLER Porta 3500 CNC Gear Grinder – As Is” with Limited Use
We are offering a unique opportunity to acquire a HÖFLER Porta 3500
CNC Spur/Helical, Internal/External Gear Grinding Machine – a rare
and powerful machine with low hours, available in As Is” condition
at a negotiable price.
Machine Overview:
• Make/Model: HÖFLER Porta 3500 CNC
• Year New: 2007
• Installed: 2010
• Total Hours: Only 6,800 since installation
• Design: Later-generation traveling gantry
• Condition: Structurally and mechanically sound, but currently not
operational due to uninstalled hydraulic drive motor (refurbished and
included).
• A full assembly report detailing remaining work can be provided
upon request.
Key Specs:
• Max external grinding diameter: 137.8” (3500mm)
• Max internal grinding diameter: 31.5” (800.1mm)
• Max tooth profile height: 3.15” (80mm)
• Max helix angle: ±45˚
• Max module: 20 (1.34 DP)
• Max grinding stroke (OD): 65” (1651mm)
• Max grinding stroke (ID): 47.2” (1199mm)
Equipped With:
• SIEMENS 840-D CNC with gear grinding software
• HÖFLER integrated inspection system (for profile, lead, spacing
checks)
• Coolant and hydraulic oil chiller system
• E51237227 Two grinding spindles with CNC dressing units
• SMW Accusmart-65 rotary table
• Full enclosure with power doors and mist extraction
• Assorted tooling, fixtures, and operator tools
• Complete documentation (manuals, diagrams, parts lists)
Condition Note:
While the main hydraulic drive motor has been fully refurbished, it
remains uninstalled, which limits machine movement. Once installed and
commissioned, the machine can be returned to near-new functionality.
We are open to reasonable offers in its current condition.
USA
06514 Hamden 
