Used Blohm Surface Grinders for Sale 6

Blohm has manufactured precision surface grinding machines from Hamburg for over a century, building one of the deepest product ranges in surface grinding capability. The company's position within the United Grinding Group (alongside Studer, Schaudt, Mikrosa, Mägerle, and Jung) provides shared technology development and global service network access.

The PLANOMAT HP series represents the current reciprocating surface grinder platform. Small machines with 300x300mm tables serve toolroom applications. Mid-range PLANOMAT HP 408, HP 608, and HP 612 cover production and toolmaking work. Large PLANOMAT HP 816 and beyond handle extended tables for long workpieces or multi-part production setups. Hand-scraped bed surfaces on premium configurations provide the geometric accuracy that precision surface grinding demands.

The PROFIMAT creep feed grinding machines address a fundamentally different application. Rather than reciprocating rapidly across the workpiece, creep feed grinding uses a single deep pass at much slower feed rates — typically 50-200mm/min versus 10-40m/min on reciprocating machines. This approach enables efficient profile grinding on components with complex geometric forms: turbine blade fir-tree roots, aerospace structural profiles, and medical implant surfaces. The mechanical requirements differ significantly — creep feed grinders need extreme structural rigidity and high-power spindles, along with intensive coolant delivery to the grinding zone.

CNC control on modern Blohm machines is typically Siemens-based with extensive Blohm-specific software that manages the complex machining cycles that production surface grinding requires. Dressing cycle management, wheel wear compensation, and thermal compensation operate continuously to maintain accuracy through extended production.

The combination of precision mechanical construction and advanced CNC control means Blohm machines retain accuracy well through high operating hour counts. Used machines from precision engineering environments often deliver substantial remaining productive life at attractive used market prices.

When evaluating used Blohm surface grinders on Exapro, check spindle bearing condition and wheel balance through vibration measurement, verify table surface condition and magnetic chuck magnetic field uniformity, test CNC positioning accuracy on all axes, inspect dressing system condition and accuracy, and confirm coolant system function and filtration adequacy for the grinding applications anticipated. Blohm machines from toolroom and aerospace environments typically come with detailed maintenance documentation reflecting the precision-focused operating culture.