<U.S.A>Rotary Surface Grinders PRG-DX/DXNC Series

Rotary Surface Grinders - PRG-DX / DXNC Series

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:44 PM Page 3 Highly Productive - Ideal for single and multiple workpiece grinding Heavy Meehanite Cast Iron Construction provides superior rigidity, accuracy and longevity necessary for heavy, high accuracy grinding applications. Ergonomically Designed centrally located controls for optimum operator convenience. Ideal Table Height permits for easy workpiece loading and unloading, and accessibility. No Table Overhang for optimum accuracy and machine tool life. Super Productive because the wheelhead must travel only t he radius of the table rather than the full diameter. Powerful 10hp Spindle Drive Motor easily handles rigorous demands of high-precision continuous production grinding. Versatile Table Swivel angle of ±5 degrees Unique bridge-type construction makes the PRG-DX The PRG-DX maintains consistent, constant surface extremely rigid and accurate. The PRG-DX features the speeds (rpms). Table rotation speeds are infinitely variable same construction, wheel head and cross feed movement up to 150 rpms assuring accurate part/wheel grinding as the PRG-DXNC Series. contact. 2

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:44 PM Page 4 Powerful, easy-to-use, operator friendly MDI Control Okamoto's custom designed MDI control system simplifies rotory grinding applications. Set up is similar to a manual rotary grinder, and uses touch and teach style operation for crossfeed and vertical positioning. Both the crossfeed and vertical positions are controlled by AC servo motors. Fully Automatic Cycle assures optimum productivity. Operators can set up a fully automatic cycle that includes rough grind, fine grind, and spark out. Infeed increments as precise as 0.00001" are standard. Interrupt functions allow for total control during automatic cycles. These functions include: a jog style button for infeed override, changes in total stock removal, and table rpm and speed adjustments. These high-performance adjustment assure optimum quality of finished components. Table Angle Adjustment PRG-6 Series ± 5˚ Adjusting table tilt allows for accurate grinding of concave or convex parts. It also assures maximum flatness. ± 5° Grinding Cycle Cycle Start Rough Grinding Fine Grinding Spark Out Cycle End Cycle Start Auto Wheel Retract Rough Infeed Fine Infeed Amount Amount 3 * *

PRG BRO NOV16.qxp_Layout 1 12/29/17 11:19 AM Page 5 Productivity and versatility in a compact package Built on the proven PRG-DX Design Platform, the PRG-DXNC Series delivers superior machine design and construction coupled with the power and versatility of user-friendly CNC control. Automatic Grinding Wheel Dress and Dress Compensation is standard on all PRG-DXNC Models. 2 selectable rough /fine infeed and dressing speeds maximize grinding wheel performance thereby optimizing grinding cycles. This makes them ideal for totally unmanned operation. Ergonomically Designed centrally located controls for optimum operator convenience. Ideal Table Height permits for easy workpiece loading and unloading, and accessibility. No Table Overhang for optimum accuracy and machine tool life. Super Productive because the wheelhead must travel only the radius of the table rather than the full diameter. Powerful 10hp Spindle Drive Motor easily handles rigorous demands of high-precision continuous production grinding. Versatile Table Swivel The PRG-DXNC is perfect for multi-step workpieces. The PRG-DXNC is the ideal choice for ultra-high precision A table mounted dresser is standard. grinding of critical components, 4

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:44 PM Page 6 Powerful 2-Axis CNC Control expands grinding capability and allows for grinding a wider variety of components 2-Axis Simultaneous Control capability including a fully automatic dress cycle Shift-Plunge Grinding for fast stock removal, then Traverse-Grind for fine finish Easy Set-Up, automatic dress, multi-step grinding A Step Grinding up to 4 Steps with High Accuracy and High Speed Simple Table Incline . . . Permits table movement of Conversational programming system provides fast, easy set-ups of up to four different +/- 5, +/- 3 and +/- 0.4 degrees respectively for flat surfaces. PRG-6DXNC, 8DXNC, 10DXNC and 12DXNC. 1 STEP 2 STEP 3 STEP 4 STEP PRG-DXNC Series . . . Better by Design Robust design and construction, and premium quality components assure smooth axes travels and consistent, precise table rotation. Z X 5

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:45 PM Page 7 Built-In Okamoto Conversational Programming System Teach-Input Programming System . . . The operator simply manually positions the grinding wheel to the grinding start position using an input key. This "teaches" the grind start position to the machine. He then moves the wheel to the cross reversal position using an input key. This teaches the machine the reversal position. He then inputs stock removal, aircut, dressing interval. The control automatically calculates total movement and all start and stop points. “Drawing” Input Programming System . . .Simply input the actual Select Grinding Mode dimensions from the workpiece drawing - the control automatically calculates the cycle sequence. Vertical & Crossfeed Incremental Feed . . . with multipliers of 0.00001" / 0.0001"/ 0.001" Built-in Chuck Control . . . with variable holding power control and automatic release cycle. Set Form Data Fanuc 21i-TB Control This powerful high- Enter Grinding Condition reliability control is standard on all PRG-DXNC rotary grinders. It features an RS-232 Interface for G&M code programming. The easy-to-understand diagnostic screen and recorded alarm history can be displayed on the control screen to assists operator in most situations. Set Datum Position 6

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:45 PM Page 8 Rigid Bridge Type Construction Assures Superb Long-Term Accuracy. Thoughtful design for optimum ease of use and operator convenience and safety. Bridge type construction assures optimum rigidity, vibration damping and thermal stability. This provides consistent, precise wheelhead movement for optimum long-term machine accuracy and reliability. Unlike competitive rotary grinders the PRG Series utilizes travelling column design with a stationery table. This assures the highest degree of accuracy, maximum productivity and simplified workpiece loading / unloading for optimum operator convenience and safety. PRG Series grinders are designed for today’s machining environment.The use of premium grade components, energy efficient motors, high performance coolant systems and many other environmentally-friendly design features make the PRG Series the right machine for today’s progressive shops. PRG-6DXNC shown with available optional high splashguard enclosure Double-walled Column Construction . . . "H" shaped guideways with tapered gibs provide the strength and rigidity necessary for heavy duty and high-precision extra fine grinding. Unique Wheelhead Moving System TURCITE Slide Surface User-Friendly Operation Zone 7

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:45 PM Page 9 Now machining professionals faced with large workpiece processing challenges can realize the extraordinary production benefits that have made the PRG Series the “go-to” choice in rotary grinders. These large capacity grinders are designed and built for the most demanding applications and have the rigidity and power necessary to deliver both efficient stock removal and consistent fine-finish accuracies. The perfect machine for high precision grinding of large components Ceramic Tables & Components Large Turbine Rings Jet Engine Components 8

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:45 PM Page 10 PRG-DX/DXNC The Series Specifications PRG-6DX PRG-6DXNC PRG-8DXNC PRG-10DXNC PRG-12DXNC MDI CONTROL CAPACITY Diameter of Electromagnetic Chuck 23.6" dia 23.6" dia 31.5" dia 39.4" dia 47.2" dia Swing Inside Table Cover 29.5" dia 29.5" dia 37.4" dia 62.4" dia 62.9" dia Distance from Chuck Top to Wheel Underside 50Hz - 2.36" ~ 9.84" - 2.36" ~ 9.84" na 60Hz - 1.38" ~ 10.8: - 1.38" ~ 10.8" na 510 Dia. Wheel 19.69" Table Load Capacity 330 lbs 330 lbs 550 lbs 2,640 lbs 2,860 lbs TABLE Revolution Speed (Peripheral Speed ~ Controlled to be Constant, Stepless) 20 ~ 150 rpm 20 ~ 150 rpm 15 ~130 rpm 8 ~ 65 rpm Inclinable angle ±5 deg ±5 deg ±3 deg ± 0.4 deg COLUMN CROSS FEED (X-AXIS) Drive Unit AC servo motor (FX) AC servo motor (NC) Travel 17.7" 17.7" 21.7" 31.5" 33.9" Feed Rate During Automatic Cycle Set Range 8 ~ 95 ipm 0 ~ 78.75 ipm Override Max.78.75 ipm (0 ~150%) Max.78.75 ipm (0 ~150%) Manual Pulse Feed Per Revolution (100 scale) 0.01"- 0.1" 0.001"(×1), 0.01"(×10), 0.1"(×100) Per Scale 0.0001"- 0.001" 0.00001"(×1), 0.0001"(×10), 0.001"(×100) Jog Feed (16 steps) 0 ~ 78.75 ipm Rapid Feed 95 ipm 157.5 ipm 196.9 ipm WHEEL HEAD VERTICAL FEED (Z-AXIS) Drive Unit AC servo motor (FX) AC servo motor (NC) Travel 12.21" 12.21" 19.7" Feed Rate During Automatic Cycle Set Range 7.8 ~ 94.5 ipm 0 ~ 78.75 ipm Override 0 ~ 150% 15 Steps Max. 78.75 ipm (0 ~ 150%) Rapid Feed 94.5 ipm 157.5 ipm Manual Feed Per Revolution 0.01"(×1), 0.1"(×10) 0.001"(×1), 0.01"(×10), 0.1"(×100) Pulse Feed Per Scale 0.00001" (x1), 0.0001" (x10) 0.00001"(×1), 0.0001"(×10), 0.001"(×100) Jog Feed 16 Steps 0 ~ 78.75 ipm Rapid Feed 15.7 / 37.4 157.5 ipm GRINDING WHEEL Diameter × Width × Bore <50/60Hz> ø14"/ø12" × 1.5" (max.2) × ø5" ø14"/ø12" × 1.5" (max.2) × ø5" ø20" × ø2" (OP: max.3) × ø5 Spindle Speed 1800 1500 / 1800 1000 / 1200 MOTOR Grinding Wheel Spindle 10 hp 10 hp Rotary Table 3 hp DC 3 hp 5 hp 10 hp MACHINE SPACE W x D x H 106"× 86" × 79" 66" × 101" × 102" 71" × 115" × 102" 179" × 169" ×141" WEIGHT Machine P roper 8,820 lbs 8,800 lbs 11,000 lbs 28,220 lbs 28,600 lbs Specifications Subject To Change Without Notice 9

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:45 PM Page 11 PRG-DX/DXNC The Series EXTERNAL VIEW Figures in ( ) Represent PRG-8DXNC PRG-6DXNC / (8DXNC) 65.5" (71.3") 36.4"(41.7") 71.6" (83.5") 87.3" (93.1") PRG-10DXNC / 12DXNC 67.4" 154.2" 121.6" 50.0" 10 169.1" 154.1" 70.3" 100.8" (115.4") 119.1" (133.7") 67" 1.2" 101.0" 103.0" 31.5"(32.9") 4.6" ~ 16.8" 67.0" 1.8" 78.7" 80.5" 49.6" 2.9" ~ 30.5" 100.0" 140.9" 1.8"

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:45 PM Page 12 PRG-DX/DXNC The Series Standard and Optional Accessories STANDARD ACCESSORIES OPTIONAL ACCESSORIES Built-In Okamoto Conversational Control (MDI on PRG-DX) Coolant System with Magnetic Separator and Dust Suction Fanuc 21i-TB 2 Axis Control Programming System Coolant System with Magnetic Separator Splash Cover with Coolant Nozzle Coolant System with Paper Filter 0.00001” Minimum Increment Coolant System with Paper Filter & Magnetic Separator Built-in Chuck Controller Grinding Wheel Balancing Stand with Arbor Grinding Wheel (12") with Adapter Balancing Arbor Built in 32" Magnetic Chuck Grinding Wheel Adapter 5” bore Diamond Dressing Tool with Holder Work Light Automatic Lubrication System Grinding Wheel Motor 15 hp Necessary Tools & Tool Box Hydro-Dynamic-Type Wheel Spindle Cartridge Style Spindle with Direct Drive Machine Light 10 hp Spindle Motor Fine Line Chuck Leveling Bolts and Plates Metric Conversion Kit Instruction Manuals & Inspection Manual Table Angle Adjustment Reports Coolant System Mist Collector Dynamic Wheel Balance System Star Pole Chuck Ring Pole Chuck 11

PRG BRO NOV16.qxp_Layout 1 12/11/17 3:44 PM Page 1 The on ly manufac turer in the wor ld supp ly ing overa l l so lu t ions for a to ta l abras ive process . Okamoto Corporation Chicago USA Okamoto Machine Tool Okamoto Machine Tool Europe GmbH Germany Okamoto China Okamoto Corporation Thai Company LTD. Semi Conductor Equipment Division CA US A MIdwest Sales KY East Coast Sales CT West Coast Sales CA Annaka Factory Japan Okamoto Pte. Ltd Singapore Emerging Abrasives Technology Okamoto Corporation 370 Corporate Woods Parkway Vernon Hills, IL 60061 USA Tel: (847) 235-3500 Fax: (847) 235-3274 California Office: 14944 Shoemaker Ave., Unit J Santa Fe Springs, CA 90670 Tel: (562) 921-0099 Fax: (562) 921-0199 Kentucky Office: 140 Production Ct. Louisville, KY 40299 Tel: (502) 749-1506 Fax: (502) 749-1525 Connecticut Office: 425-D Hayden Station Rd. Windsor, CT 06095 Tel: (860) 219-1006 Fax: (860) 219-1007 www.okamotoco rp .com PRINTED IN USA 12/17 3M