<U.S.A>ACC SA1 Series

ACC Series Saddle Type Surface Grinders

ACC Series SADDLE TYPE SURFACE GRINDERS For over eighty years, machinists worldwide - in virtually every industry have relied on Okamoto surface grinders to get the job done. And with good reason, Okamoto is the recognized leader in grinding technology. From concept to design, manufacturing, distribution, support and service - Okamoto is dedicated to one thing - total customer satisfaction. This brochure outlines Okamoto’s diverse line of high-precision Saddle Type Surface Grinders. Check the features. Note the variety in capacity and control options. You’ll see that Okamoto is the true value in grinding machines. Rock Solid Construction is the key to precise grinding, reliability and long-term machine life. The heavily ribbed, high grade Meehanite cast iron on Okamoto’s grinders provides the rigidity and stability that assures you unrivaled CARTRIDGE TYPE SPINDLES performance. Column Grinding wheel spindles are direct drive construction is also extra and incorporate super-precision, rigid with tapered gibs on pre-loaded ball bearings that are the vertical guideways, lubed for life. This design provides for providing strength for maximum spindle stiffness to handle GUIDEWAYS light to heavy duty grinding applications. rigorous-duty grinding Okamoto saddle series surface grinders This simple, yet effective design is and the high-precision employ Double-Vee construction. This maintenance free and simplifies service. ensures true tracking and maximizes necessary for those extra the effective life of the grinder’s fine grinding applications. built-in accuracy. 2

ACC Series SADDLE TYPE SURFACE GRINDERS AUTOMATIC LUBRICATION PREMIUM GRADE The reliable lubrication system assures COMPONENTS proper oil distribution to necessary The best components make the best components to ensure smooth, machine. Castings, electrical, electronic WHEELHEAD ASSEMBLY trouble-free machine performance. All and mechanical components - whatever The wheelhead assembly features rigid components are easily accessible for the part, you’ll find only the best on an design and construction for long-term routine maintenance (pictured with Okamoto. precision. It is easily accessed for wheel cover removed). change and maintenance (pictured with optional over-the-wheel dresser). 3

ACC SA1 Series AUTOMATIC GRINDERS Rock-Solid construction and standard high-performance features make the ACC-SA1 Series the “Production Man’s” grinder. Its efficient Shift-Plunge Cycle assures fast stock removal. Programmable Dressing with Dress Compensation is standard and dramatically boosts productivity by freeing operators from constant manual dressing - great for hard-to-grind materials. Less idle time means more production and profits! n AC servo driven vertical feed system boasts an astounding 0.00001” minimum downfeed increment. n Crossfeed minimum increment is 0.0001”. Crossfeed Position is easily set through the “Teach” function. Grinding Wheel Speed Set-Up n Programmable dressing and dress compensation is standard. n High productivity Shift-Plunge cycle. Automatic Dress with Compensation Function 4

ACC SA1 Series AUTOMATIC GRINDERS Crossfeed Position is easily set through the “Teach” function. A Crossfeed Pulse Generator with a minimum increment of 0.0001” is standard. - All functions are now integrated into the compact easy-to-use electronic control panel. This user-friendly control with self diagnostic functions is easy to learn and operate, even for first time users. Grind start position, and cross reverse are easily set. Dressing points are also easily set with the optional wheel dressers. Effortless Cross and Vertical Rapid Feeds are executed through simple touch pad control. A Manual Pulse Generator for vertical feed with minimum increments of 0.00001” is built into the control. 5

ACC GX Series AUTOMATIC GRINDERS AUTOMATIC CYCLE Start of the Automatic Downfeed Spark Out Right End Stop Rapid Automatic Downfeed Stop (0 ~ 5 times) Rapid Motion Downfeed Motion Grinding Wheel Workpiece Automatic Feed Depth Built on the legendary Okamoto ACC-DX platform, the new ACC-GX Series provides a new dimension in surface grinding performance, reliability and value. n Rock solid heavily ribbed, high grade Meehanite cast iron construction throughout provides rigidity and stability. n Extra rigid column with tapered gibs on the vertical guideways provides strength for rigorous-duty grinding and high-precision for extra-fine grinding. n Extra rigid wheelhead assembly for long-term precision. n Automatic lubrication for trouble-free performance. n Premium grade components throughout. n Cartridge type wheel spindles utilize super-precision pre-loaded ball bearings for optimum stiffness. n Full width tables eliminate overhang. Double-Vee Table Ways on both t he longitudinal and crossfeed axes. n Rapid vertical feed, extensive way protection, independent hydraulic and grinding wheel control, built-in chuck control & demagnetizer and much more. 6

ACC GX Series AUTOMATIC GRINDERS The ACC-6 18DX3 is the perfect smaller capacity hydraulic MDI control surface grinder. Rugged base and column construction supplies the rigidity and stability needed for both coarse and extra- fine grinding requirements. Extended saddle longitudinal ways reduce overhang to provide long machine life and peak accuracy. Hand scraped, Double-Vee Table Ways allow for heavier table loads and ensure true tracking for improved accuracy. Vertical feed is switchable - coarse and fine. Lubrication is provided by Okamoto’s efficient gravity feed lubrication system. Other standard features include Rapid Vertical Feed, efficient ACC-GX Control Automatic Lubrication, extensive Way Protection, conveniently The GX control has the control positioned Controls, Independent Hydraulic and Grinding Wheel and convenience features that today’s Control, built-in Chuck Control with variable holding power & demanding machinist wants. Grinding demagnetizer and much more. Versatility, Quick Set-Up, Precise Control, Convenience and dependable long-term Reliability. Okamoto truly has simplified surface grinding, even for first time operators. All control functions are conveniently located and are easily actuated by push buttons or switches. And since the GX Control uses solid state electronics, precise command execution is assured for consistent, repeatable accuracy and performance. Automatic downfeed is selectable in increments from 0.00005” to 0.0015” (0.00001” manual increment) for the ultimate in Automatic Surface Grinding performance. The GX Control delivers these versatile features: n Surface Grinding n Traverse (Criss Cross) Grinding n Plunge Grinding at one end or both ends of table stroke n Rough & Finish Grind in Cycle n Pre-Set Spark-Out Passes n Table "Park" at Right End 7

ACC 8 18NC CNC FORM GRINDER The ACC 8 18NC form grinder has the performance features of a full-function CNC surface grinder at a fraction of the price. Superb construction boasts heavily ribbed Meehanite cast iron throughout and full contact double-vee ways for unrivaled long-term peak precision. A 3-Point Diamond Dresser includes a 2-point angle dresser for form dressing and a 1-point dresser for straight dressing. A powerful 2-axis simultaneous-control CNC expands grinding flexibility. It's ideal for Surface, Slot, Step, Form and Contour grinding. User-friendly "Touch & Teach" conversational programming simplifies set-up and operation even for operators unfamiliar with CNC. A RS232C Port and PC Card Slot are standard. It all adds up to the optimum grinding flexibility, productivity and ease of operation. Available with Full Enclosure (optional). 8

VERTICAL FEED MANUAL PULSE GENERATOR Precise vertical positioning of Main Data Screen 0.0001"- 0.005" per manual pulse feed. CROSSFEED MANUAL PULSE GENERATOR Precise crossfeed positioning of 0.00001" to 0.002". Wheel Dress Set-Up Screen ROTARY DRESSER delivers versatile, precise wheel form (optional). Dress Form Input Screen Grinding Pattern Screen 9

ACC DXNC Series CNC FORM GRINDERS Program Check Data Change Okamoto ACC-DXNC Series CNC Form Grinders are fast Trial becoming the preferred choice of performance conscious Programming 30M Operation Grinding2 H 1H 20M 45M machinists. And with good reason. They deliver all of the 4H35M benefits of 2-axis simultaneous CNC controlled grinding without the time-consuming, complicated programming. Okamoto’s user-friendly conversational CNC software slashes Data Input programming time. The operator simply chooses the set-up Simulation 2H5M grinding mode, grinding pattern and cycle that’s right for the ACC-DXNC CNC Grinders dramatically reduce cycle times. job and the unique DXNC control does the rest! Now even ACC-DXNC CNC Grinders boost throughput unskilled operators can realize optimum grinding accuracy while delivering the highest degree of repeatable and productivity. accuracy. A RS232C Interface simplifies program changeover, program saving and retrieval. This assures consistent, accurately ground parts even with multiple machine operators. Easy data input & fast set-up, consistent repeatable peak accuracy and precise CNC control make the DXNC ideal for both small-lot grinding as well as high volume production runs. 10

ACC DXNC Series CNC FORM GRINDERS WHEEL DRESS SETUP SCREEN DRESS FORM INPUT SCREEN GRINDING PATTERN SCREEN The ACC-DXNCs' powerful software easily allows you to add additional axes for custom applications. Swing Indexer Dual Shoulder Dresser & Indexer CNC Transverse Mount Indexer for Slot Grinding Okamoto’s unique software does away with complicated programming! A ladder display function simplifies program check to ensure accuracy and productivity. The CNC automatically controls grinding functions including dressing. Programmable dressing with dress compensation is standard on all DXNC grinders. 11

FLOOR PLANS C A B 8 20 12 24 16 24 16 32 20 24 20  40 ACC GX Series A 96" 108" 108" 108" 132" 171" B 79" 89" 97" 103" 97" 103" C 73" 73" 73" 84" 84" 84" Weight Lbs. 5,160 6,920 7,980 8,350 10,120 11,290 ACC SA1 Series A 96" 108" 108" 108" 131" 171" B 76" 89" 92" 100" 92" 101" C 73" 73" 73" 84" 86" 84" Weight Lbs. 5,250 7,010 8,070 8,440 10,210 11,380 ACC DXNC Series A 95" 107" 107" 130" 107" 178" B 72" 79" 87" 87" 97" 100" C 97" 95" 95" 107" 105" 102" Weight Lbs. 5,160 6,175 7,055 8,820 7,720 10,580 ACC 818NC A 79" B 66" C 68" Weight Lbs. 3,600 ACC 618 DX3 A 77" B 51" C C 79" Weight Lbs. 2,420 A B 12

ACC 6 18 DX3 ACC 818NC ACC GX, SA1, DXNC Series 8 20 12 24 16 24 16 32 20 24 20  40 Table Capacity Working Surface (W x L) 6" x 20" 7.87" x 20.86" 8" x 21.6" 12" x 24" 16" x 25.6" 16" x 33.5" 20" x 25.6" 20" x 41.3" Max. Movement (Manual) 20.8" 20.86" 25.6" 29.5" 29.5" 37.4" 29.5" 45.3" Max. Dist. Wheel to Table 11.7" 14.07" 15.7" 13.6" 13.6" 21.5" 21.5" 21.5" Magnetic Chuck (W x L) 6" x 18" 8" x 18" 8" x 20" 12" x 24" 16" x 24" 16" x 32"" 20" x 24" 20" x 40" " Capacity Incl. Chuck 264 lbs 265 lbs 440 lbs 925 lbs 925 lbs 1,540 lbs 1,540 lbs 1,540 lbs T Slots (No. x W)** 1 x 0.67" 1 x 0.67" 1 x 0.67" 3 x 0.67" 3 x 0.67" 3 x 0.67" 3 x 0.67" 3 x 0.67" Grinding Wheel Wheel Size (D x W x B) 8" x 1" x 1.25" 8" x 0.23"-1 x 1.25" 8" x 1" x 1.25" 12" x 1.5" x 5" 12" x 1.5" x 5" 12" x 1.5" x 5" 12" x 1.5" x 5" 12" x 1.5" x 5" Wheel Speed (60 Hz) 3,480 rpm 3,600 rpm 3,600 rpm 1,800 rpm 1,800 rpm 1,800 rpm 1,800 rpm 1,800 rpm Motors Grinding Wheel Spindle 2 hp 2 hp 2 hp (3 hp*) 5 hp (7.5 hp*) 5 hp (7.5 hp*) 5 hp (7.5 hp*) 5 hp (7.5 hp*) 15 hp (7.5hp*) Vertical Feed 0.5 hp AC Servo 0.6 hp AC Servo 0.5 AC Servo Motor Hydraulic Oil Pump 1 hp 1 hp 1 hp 2 hp 2 hp 3 hp 3 hp 3 hp *Opt. - DXNC Models Only. **T-Slots not available on ACC GX and SA1 models. ACC 6 18 DX3 ACC GX Series ACC SA1 Series ACC 8 18NC ACC DXNC Series 8 20, 12 24, 16 24, 8 20, 12 24, 16 24 8 20 12 24, 16 32 16 32, 20 24, 20 40 16 32, 20 24, 20 40 Table Longitudinal Longitudinal Feed Rate 0.33 ~ 66 ft/min 1 ~ 82 ft/min 0.33 ~ 66.67 ft/min 3 ~ 82 ft/min Crossfeed Manual Feed Per Handwheel N/A N/A 0.0001" / 0.0005" 0.00001" / 0.0001" / 0.005" / 0.002" 0.00001" / 0.0001" / 0.005" / 0.002" Graduation Jog Feed N/A N/A 0 ~ 40 in/min 0 ~ 40 in/min 0 ~ 40 in/min Automatic Intermittent Feed 0.0001 ~ 0.16 in/min 0.02" ~ 0.4" (8 20), 0.02" ~ 0.8" (all others) 0.02" ~ 0.4" 0.02" ~ 0.4" 0. 02" ~0.8" Continuous Feed 0.1 ~ 40 in/min 4 ~ 40 in/min 0.004 ~ 40 in/min 0.3 ~ 3.2 in/min 0.3 ~ 3.2 in/min Wheel Vertical Feed Automatic Feed Rate 0.00005" - 0.0015" 0.00001" - 0.0015" 0.00005" - 0.0015" Semi-Automatic 0.00005" - 0.0015" Semi-Automatic 0.00001" - 0.004" Full Automatic 0.00001" - 0.004" Full Automatic Spark-Out Passes 0 - 5 0 - 5 0 - 10 0 - 15 0 - 15 Feed Per Handwheel Graduation 0.00001" (x .1) N/A 0.00001" (x .1) 0.00001" (x .1) 0.00001" (x .1) 0.0001" (x 1) N/A 0.0001" (x 1) 0.0001" (x 1) 0.0001" (x 1) 0.001" (x 10) N/A 0.0005" (x 5) 0.0005" (x 5) 0.0005" (x 5) Rapid Vertical Feed 23.6 in/min 23.6 in/min 40 in/min 40 in/min Specifications subject to change without notice. Machines in this brochure are pictured with options. 13

OPTIONS Pages 14 & 15 feature just a few of the many optional accessories available for your high-performance ACC Saddle Type Surface Grinders. Consult your Okamoto Sales Professional for a complete list of available options. Coolant System with Dust Suction Coolant Systems Magnetic Separator Efficiently removes grinding dust from work Available in a wide variety of configurations. Efficiently separates swarf from coolant fluid. envelope. (Paper filter type shown.) Micro Crossfeed Crossfeed Digital Display For precise manual crossfeed positioning. with Glass Scale Electromagnetic Chuck Electromagnetic Chuck Electromagnetic Chuck (Longitudinal Pole) (Transverse Pole) (Okamoto Brand) 14

Grinding Wheel Balancer Manual Overhead Wheel Hydraulic Overhead Balances grinding wheels quickly, Dresser Wheel Dresser precisely and efficiently. Simplifies grinding wheel dressing and provides true wheel form. Dynamic Wheel Balancing System LED Worklight Oil Temperature Regulator Minimizes thermal growth. 15

The only manufacturer in the world supplying overall solutions for a total abrasive process. Okamoto Corporation Chicago USA Okamoto Machine Tool Europe GmbH Germany Okamoto Okamoto Corporation Thai Company LTD. Okamoto Machine T o o l Semi Conductor Equipment Division China CA USA 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.okamotocorp.com PRINTED IN USA 1/19 REV 4