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The new BLOHM PROFIMAT XT is the next generation of heavy-duty continuous dress creep feed grinders. The machine combines exceptional rigidity and power with fast axis speeds for enhanced grinding productivity.
Table speeds greater than 1,500 in/min, along with a quick changeover wheel-dresser system and improved acceleration/deceleration rates, offer optimal positioning speeds and short cycle times. Optional features include table dresser systems, HSK wheel flanges and a linear drive table to produce reciprocal grinding speeds up to 3,000 in/min for fine surface finishes. Additional grinding advances include dual left and right coolant nozzles with the RazorTec wheel cleaning system.
Applying spindle power up to 80 hp with grinding wheel widths up to 8”, the BLOHM PROFIMAT XT excels at machining large parts with high stock-removal requirements. The new machine's speed improvements increase axis movement by 100 percent and acceleration/deceleration by 200 percent, enabling overall grinding cycle time reductions of up to 30 percent thanks to fully optimized positioning. To improve stiffness, BLOHM introduced a ribbed base and column casting with dual ballscrews for Z-axis cross-grinding stability.
The machine is equipped with a Siemens SINUMERIK 840D sl control that features a touch screen monitor and Windows-based graphical user interface. UNITED GRINDING customized this advanced human-machine interface (HMI) to provide grinding process data, machine health monitoring, operational efficiency and graphical product information.
Related Glossary Terms
- coolant
coolant
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- feed
feed
Rate of change of position of the tool as a whole, relative to the workpiece while cutting.
- grinding
grinding
Machining operation in which material is removed from the workpiece by a powered abrasive wheel, stone, belt, paste, sheet, compound, slurry, etc. Takes various forms: surface grinding (creates flat and/or squared surfaces); cylindrical grinding (for external cylindrical and tapered shapes, fillets, undercuts, etc.); centerless grinding; chamfering; thread and form grinding; tool and cutter grinding; offhand grinding; lapping and polishing (grinding with extremely fine grits to create ultrasmooth surfaces); honing; and disc grinding.
- grinding wheel
grinding wheel
Wheel formed from abrasive material mixed in a suitable matrix. Takes a variety of shapes but falls into two basic categories: one that cuts on its periphery, as in reciprocating grinding, and one that cuts on its side or face, as in tool and cutter grinding.
- stiffness
stiffness
1. Ability of a material or part to resist elastic deflection. 2. The rate of stress with respect to strain; the greater the stress required to produce a given strain, the stiffer the material is said to be. See dynamic stiffness; static stiffness.
