KEYSEATING MACHINES
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PROFILE AND KEYSEATING MACHINES Machine tools

APPLICATIONS FOR KEYSEATING MACHINES As mechanical engineers with years of experience, we are a competent partner for many different industries: from drive engineering to woodworking – the Leistritz Polymat and Polyjet series of machines are employed in just about every branch. Our design and manufacture specialists work constantly to advance our technologies. We have continuously improved our profile and keyseating technology over many decades to deliver the highest quality from one source. The customer’s benefit is always our top priority. As a reliable partner with a global service and...

Blind hole keyway Hexagonal profile Feather keyway Helical keyway Spline profile Production technology Cone with keyways Prospekt_Profil und Nutenziehmaschinen_2018_EN.indd 3

Keyseating - principle - advantages HOW KEYSEATING WORKS The keyseating process cuts a keyway in stepwise manner. A cutter is pulled vertically with a continual stroke movement along the borehole, combined with a horizontal thrust motion. The thrust is delivered after each stroke by a feed bar that thrusts the cutter in steps between the cutter guide bar and cutter bar. To ensure gentle machining for the tool and workpiece, the cutter is automatically lifted off before the upward movement. The keyseating machines are equipped with a twin-column hydraulic guidance system. The in-line...

Keyseating - principle - advantages ADVANTAGES OVER SLOTTING PRECISE Significantly greater precision, since the tool is guided over the entire keyway length (offset, depth, axis parallelism) Higher surface quality, since the tool and workpiece make one unit due to the centering elements ECONOMICAL Higher cutting values, since the cutter cannot deviate from its path while cutting (cutting speed, feed) Workpiece and tool are clamped into a single unit, resulting in → Longer tool lives → Optimized process parameters FLEXIBLE Significantly wider and longer keyways can be cut (length up to 1500...

PERFORMANCE DATA OF MACHINE SERIES POLYJET Cutting width Cutting length Cutting force Workpiece weight Main drive connected load Cutting speed Constant return speed Bore dia. to DIN 6885 Feed rate Space requirement, incl. electronics

THE MACHINE SERIES POLYMAT 25/32 NC Machines in the NC series are an economic solution for the task of: Cutting through-keyways/profiles into through-holes, either as single keyways or multiple keyways. Typically, manual indexers are built onto the machine for multiple keyways. NC machines generally come as 2-axis machines (controlled axes). POLYMAT 70/100/125 CNC CNC machines have controlled axes, which allows interpolation of the axes. Accordingly, in addition to the standard feather keyways according to DIN 6885 or custom profiles in through-holes, these machines also cut: Oblique...

Components, drive, control and operating elements EXPANSION STAGES Manual indexer Automatic indexer Remote control for bulky workpieces Automatic workpiece clamp Tilting table for conical bores Automation Automatic chip removal Tool lowering Automatic workpiece clamp Tilting table Remote control Automatic indexer Manual indexer

Components, drive, control and operating elements DRIVE DRIVE- LINEAR The Polyjet 50 is driven by a high-dynamic linear drive. This low-maintenance and wearfree drive allows cutting speeds of up to 120 m/min. DRIVE- HYDRAULIC With precision-made, superfinished piston rods, the twin-column hydraulic guidance system ensures utmost precision in the tool slide. The piston rods and hydraulic oil provide guidance and drive in one unit. The hydraulic oil also ensures permanent lubrication of the system. Accordingly, the machine has no lubrication/maintenance points. CONTROL CNC Control SINUMERIK...

Tool sets and systems TOOL SETS, CUTTERS AND CENTERING SETS Each tool set covers a specific machining range: Keyway width Borehole diameter Keyway length The respective tool must be selected to match the machining task. The cutter required for the cutting task is selected to match the defined tool set. Standard tooling for profile and keyseating machines WC 2/3/4 Cutter Type C Tool kit, full equipment Keyway length, maximum (mm) Keyway width Borehole diameter Cutter guide bar diameter (mm)

Tool sets and systems CONE The cone steplessly centers the workpiece against the bore chamfer, positively locating it relative to the cutter tool. STEPPED BUSH The workpiece is centered by its bore. The stepped bush clamps the top face of the workpiece and positively locates it relative to the cutter tool. CONTINUOUSLY ADJUSTABLE A three-point clamping system with fixed and adjustable clamping elements clamps the workpiece eccentrically and firmly by its bore. APPLICATION OF THE CENTERING SET FOR TOOL BORES Tool kit, full equipment Stepped bush Continuously adjustable centering Table insert...

PRODUCTION TECHNOLOGY Available for you all over the world Leistritz Advanced Technologies Corp., Allendale Leistritz Produktionstechnik GmbH, Nuremberg & Pleystein Leistritz Machinery (Taicang) Co., Ltd., Taicang Leistritz Produktionstechnik GmbH | Leistritzstrasse 1-11 | 92714 Pleystein | Germany T +49 9654 89-0 | produktionstechnik@leistritz.com