ShapeSmart NP3+ Cylindrical Grinding Machine

June 06,2018
ShapeSmart NP3+ Cylindrical Grinding Machine

Tool precision depends directly on the production accuracy of the blanks used. There is a new addition to the market to create complex geometries with exact concentricity and dimensional accuracy: the cylindrical grinding machine ShapeSmart NP3+ from Rollomatic. Thanks to its modular structure, the machine can be easily adapted to any requirement and any budget.

The market demands ever greater flexibility, smaller batch sizes and increased efficiency in production. Manufacturers meet this demand with high-precision tools as an important performance factor. “But only those who enter the race with perfectly prepared blanks have any chance of a pole position in the formula one of precision heavy weights. High carbide quality is one factor, but only grinding on modern cylindrical grinding machines provides a great basis for high-precision milling tools, drilling tools or punching tools,” says Damien Wunderlin, head of marketing and sales at Rollomatic SA in Le Landeron, Switzerland. “We’ve therefore expanded one of our classics from an ergonomic and technical perspective with the result being the ShapeSmart NP3+, a powerful yet cost-effective cylindrical grinding machine.”

Available with three or four axes, the ShapeSmart NP3+ covers the usual requirements for a high-precision cylindrical grinding machine in the grinding range from 0.025 to 25.0 mm diameter. It works in accordance with the peel grinding principle and can perform roughing and finishing processes simultaneously. Rollomatic originally invented this technology and again facilitates never-before-achieved power in cylindrical grinding coupled with microprecision: this is how the workpiece guide system guarantees concentricity in the µm range. Even extreme lengths/diameters – e.g. for deep-hole drills or other special applications – are no problem for the NP3+ up to 400xD.                 

Users demand ultra-high precision. The Swiss company achieves this by continually optimizing the machine design and adapting the individual components in an ideal manner. In comparison to the popular predecessor model, the NP3, a few details have once again been enhanced. For example, Rollomatic uses a Fanuc panel with 15-inch display and integrated PC for the machine control. As Wunderlin comments: “Thanks to the new panel control and PC integrated, we were able to further enhance user-friendliness for the operator. In addition, the new panel control and PC makes it possible to integrate the in-process measuring gaging system so that the ShapeSmart NP3+ maintains even narrow tolerances as any potential deviations will be corrected automatically. This guarantees users optimum reproducibility and mirror finish surfaces in unattended operation – even for complex tool geometries.”

The pick-and-place tool loader enables everything from small to large batches to be ground unattended as it can manage up to 1,360 workpieces up to 300 mm long. With the Job Manager, 10 different tool profiles can be programmed and produced automatically. Thanks to the integrated flipper station, both ends of the workpiece can also be ground up to a length of 200 mm. The setting of the grinding wheel positions can be easily and automatically done with the gap control system. A 3D touch probe facilitates the localization of the tool end position that can be used for instance as second operation to peel grind undercuts on ground endmills. Indeed steps, cones and radii can be processed completely in one single chucking.

Related Glossary Terms

  • cylindrical grinding

    cylindrical grinding

    Grinding operation in which the workpiece is rotated around a fixed axis while the grinding wheel is fed into the outside surface in controlled relation to the axis of rotation. The workpiece is usually cylindrical, but it may be tapered or curvilinear in profile. See centerless grinding; grinding.

  • gang cutting ( milling)

    gang cutting ( milling)

    Machining with several cutters mounted on a single arbor, generally for simultaneous 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 machine

    grinding machine

    Powers a grinding wheel or other abrasive tool for the purpose of removing metal and finishing workpieces to close tolerances. Provides smooth, square, parallel and accurate workpiece surfaces. When ultrasmooth surfaces and finishes on the order of microns are required, lapping and honing machines (precision grinders that run abrasives with extremely fine, uniform grits) are used. In its “finishing” role, the grinder is perhaps the most widely used machine tool. Various styles are available: bench and pedestal grinders for sharpening lathe bits and drills; surface grinders for producing square, parallel, smooth and accurate parts; cylindrical and centerless grinders; center-hole grinders; form grinders; facemill and endmill grinders; gear-cutting grinders; jig grinders; abrasive belt (backstand, swing-frame, belt-roll) grinders; tool and cutter grinders for sharpening and resharpening cutting tools; carbide grinders; hand-held die grinders; and abrasive cutoff saws.

  • 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.

  • milling

    milling

    Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.

Additional Products from Rollomatic

Both the SmartMoma and the Nextage robots will be shown in working action during the IMTS 2022 in Chicago. The SmartMamo will transport full and empty cassettes between the grinding machines and the post‐grinding station. The Nextage humanoid robot will perform tasks such as tubing and labeling.
The LaserSmart 510 Femto with its innovative and powerful femto-second laser source provides unlimited machining possibilities. This laser source has a femto-second pulse width which is 1,000 shorter than a pico laser. It is built on the success of the Rollomatic LaserSmart® series of machines. Read More
The strategy for this machine is to offer a more cost-effective way and higher quality in the production of high-performance PCD polycrystalline diamond, CBN cubic boron nitride and CVD chemical vapor deposited cutting tools which traditionally require to be produced by a double process of spark Read More
The GrindSmart 660XW is a 6-axis tool and peel grinding machine allows the user to utilize cost-effective and advanced  lean manufacturing principles; termed as “Ultra-Lean Grinding Process.” The machine includes a 6•position wheel changer and linear motors on all axes. It features a traveling high Read More
As the name suggests, cutting taps produce threads by progressively cutting away the space between threads into which the fastener's external threads will fit. Forming taps, by contrast, remove no material. Instead, they move or displace material inside the hole to build up the threads and dig Read More
The GrindSmart 630XW 6-axis tool grinding machine and ShapeSmart NP50 5-axis pinch/peel cylindrical grinding machine are suitable for use in the following fields: manufacturing parts for the weapons industry, rifle chamber manufacturing and reconditioning, cold forging in radial forging machines, Read More
This model is part of the GrindSmart® series of tool & cutter grinding machines with an axis configuration that incorporate 6 fully interpolated axes (3 rotary and 3 linear) and is unique in this industry. The machine also incorporates linear axis drive technology. 
Both grinding spindles are “synchronous direct‐drive spindles” with 19 hp peak each. The most important feature of a synchro­nous motor is that it provides constant speed during its operation and that the torque curve is highly efficient, as per above graph. The rotational force is not reduced with Read More
Dental tool grinding on the 5-axis GrindSmart Nano5 grinding machine offers exceptional flexibility in comparison to conventional single-purpose grinders. With its 5 fully interpo­lating CNC axes and a pick-and-place automatic tool loader, the machine can easily be adapted for any type of dental Read More
Pinch grinding offers highest concentricity particularly on long and thin parts. The rough and finish grinding are performed in one pass. This innovative way to grind roughing and finishing simultaneously eliminates a separate process and reduces cycle time. The machine utilizes two different Read More