Surface Grinder

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Feature

Graphic conversation dresing mode

Graphic conversation grinding mode

Machine Design Feature

X, Y, and Z axes are driven by A.C. servo motor and precision ballscrews, providing high positioning accuracy and repeatability.

Spindle Air Purge design

The air purge designed spindle generates positive air pressure between the spindle and spindle housing. The spiral groove design helps keep the spindle cool and efficiently prevents small chips from entering.

5 HP Spindle Motor (EASY 820)

An optional 5 HP spindle motor is available to work with the ultra heavy duty spindle for tough material or creepfeed grinding.

Machine Design

Extra wide 774mm (30.47”) machine base design, providing excellent rigidity for low vibration dynamic grinding, 435mm (17.12”) large column

Precision hand scraped longitudinal travel guideways with hydrostatic oil film technology and Turcite-B coating to assure the positioning accuracy and machine longevity.

Ultra Rigid Box Structure Design

Box-structure machine base is made of Meehanite cast-iron to guarantee the superior rigidity and stability of machine. Machine net weight : 2,200 kgs (4,840 lbs).

Roller Type Linear Ways

Roller type linear guide ways are used in Y axis and Z axis of EASY-820 for superb rigidity and micro feed acuracy.

X, Y, and Z axes are driven by A.C. servo motor and precision ballscrews, providing high positioning accuracy and repeatability.

Spindle Air Purge design

The air purge designed spindle generates positive air pressure between the spindle and spindle housing. The spiral groove design helps keep the spindle cool and efficiently prevents small chips from entering.

5 HP Spindle Motor (EASY 820)

An optional 5 HP spindle motor is available to work with the ultra heavy duty spindle for tough material or creepfeed grinding.

Machine Design

Extra wide 774mm (30.47”) machine base design, providing excellent rigidity for low vibration dynamic grinding, 435mm (17.12”) large column

Precision hand scraped longitudinal travel guideways with hydrostatic oil film technology and Turcite-B coating to assure the positioning accuracy and machine longevity.

Ultra Rigid Box Structure Design

Box-structure machine base is made of Meehanite cast-iron to guarantee the superior rigidity and stability of machine. Machine net weight : 2,200 kgs (4,840 lbs).

Roller Type Linear Ways

Roller type linear guide ways are used in Y axis and Z axis of EASY-820 for superb rigidity and micro feed acuracy.

Grinding Samples

Specification

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Model 820CNC II 820CNC III 1224CNC II 1224CNC III 1632CNC II 1632CNC III 1640CNC II 1640CNC III 2040CNC II 2040CNC III 2060CNC II 2060CNC III 2448CNC II 2448CNC III 2460CNC II 2460CNC III 2480CNC II 2480CNC III 24100CNC II 24100CNC III 24120CNC II 24120CNC III
Capacity  
Maximum grinding (Width x length) 8" x 20" 8" x 20" 12" x 24" 12" x 24" 16" x 32" 16" x 32" 16" x 40" 16" x 40" 20" x 40" 20" x 40" 20" x 60" 20" x 60" 24" x 40" 24" x 40" 24" x 60" 24" x 60" 24" x 80" 24" x 80" 24" x 100" 24" x 100" 24" x 120" 24" x 120"
Maximum distance for table surface to spindle centerline 19.6" 19.6" 22" 22" 22" 22" 23" 23" 24" 24" 24" 24" 27.5" 27.5" 27.5" 27.5" 27.5" 27.5" 27.5" 27.5" 27.5" 27.5"
Table  
Table size (Width x Length) 8" x 20" 8" x 20" 12" x 24" 12" x 24" 16" x 32" 16" x 32" 16" x 40" 16" x 40" 20" x 40" 20" x 40" 20" x 60" 20" x 60" 24" x 48" 24" x 48" 24" x 60" 24" x 60" 24" x 80" 24" x 80" 24" x 100" 24" x 100" 24" x 120" 24" x 120"
Maximum longitudinal travel 24" 24" 30" 30" 35" 35" 48" 48" 42" 42" 42" 42" 50" 50" 61.4" 61.4" 81" 81" 100.7" 100.7" 120.4" 120.4"
Maximum cross travel 9.4" 9.4" 12.5" 12.5" 16.3" 16.3" 16" 16" 22" 22" 22" 22" 26" 26" 26" 26" 26" 26" 26" 26" 26" 26"
T-slot (No x Width) 1 x 0.5" 1 x 0.5" 1 x 0.5" 1 x 0.5" 1 x 0.5" 1 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5" 3 x 0.5"
Longitudinal Movement  
Hydraulic transverse feed 984 In/Min N/A 987 In/Min N/A 984 In/Min N/A 984 In/Min N/A 984 In/Min N/A 984 In/Min N/A 984 In/Min N/A 984 In/Min N/A 984 In/Min N/A 984 In/Min N/A 984 In/Min N/A
Rapid transverse servo feed N/A 787 In/Min N/A 787 In/Min N/A 787 In/Min N/A 787 In/Min N/A 787 In/Min N/A 787 In/Min N/A 787 In/Min N/A 787 In/Min N/A 787 In/Min N/A 787 In/Min N/A 787 In/Min
Cross Movement  
Rapid transverse feed 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min
Least increment input 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001"
Elevation Movement  
Rapid feed 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 196 In/Min 192 In/Min 192 In/Min 118 In/Min 118 In/Min 118 In/Min 118 In/Min 78 In/Min 78 In/Min 78 In/Min 78 In/Min 78 In/Min 78 In/Min 78 In/Min 78 In/Min 78 In/Min 78 In/Min
Least increment input 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001" 0.0001"
Spindle & Wheel  
Spindle motor 5 HP 5 HP 7.5 HP 7.5 HP 7.5 HP 7.5 HP 10 HP 10 HP 10 HP(15 opt.) 10 HP(15 opt.) 10 HP(15 opt.) 10 HP(15 opt.) 15 HP 15 HP 15 HP 15 HP 15 HP 15 HP 15 HP 15 HP 15 HP 15 HP
Spidle speed 3600 rpm 3600 rpm 1800 rpm 1800 rpm 1800 rpm 1800 rpm 1720 rpm 1720 rpm 1800 (1100 opt.) rpm 1800 (1100 opt.) rpm 1800 rpm 1800 rpm 1100 rpm 1100 rpm 1100 rpm 1100 rpm 1100 rpm 1100 rpm 1100 rpm 1100 rpm 1100 rpm 1100 rpm
Grinding wheel outside diameter Ø 3" x 0.5" Ø 3" x 0.5" Ø 14" x 2" Ø 14" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2" Ø 16" x 2"
Grinding wheel bore Ø 1.25" Ø 1.25" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5" Ø 5"
Motor  
Hydraulic 1 HP N/A 2 HP N/A 2 HP N/A 2 HP N/A 4 HP N/A 6.7 HP N/A 6.7 HP N/A 6.7 HP N/A 6.7 HP N/A 6.7 HP N/A 6.7 HP N/A
Cross feed (AC servo) (HP) 1.3 HP 1.3 HP 1.3 HP 1.3 HP 1.3 HP 1.3 HP 2.6 HP 2.6 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP 2.4 HP
Vertical feed (AC servo) (HP) 1.3 HP 1.3 HP 1.3 HP 1.3 HP 1.3 HP 1.3 HP 4 HP 4 HP 2.6 HP 2.6 HP 2.6 HP 2.6 HP 4 HP 4 HP 4 HP 4 HP 4 HP 4 HP 4 HP 4 HP 4 HP 4 HP
Longitudinal feed (AC servo) N/A 1.3 HP N/A 1.3 HP N/A 1.3 HP N/A 2.6 HP N/A 2.6 HP N/A 4 HP N/A 4 HP N/A 4 HP N/A 4 HP N/A 4 HP N/A 4 HP
Machine Size  
Weight (net/gross Approx.) 4850/5290 ibs. 4850/5290 ibs. 8928/9920 ibs. 8928/9920 ibs. 9920/11243 ibs. 9920/11243 ibs. 10471/11486 ibs. 10471/11486 ibs. 10802/12125 ibs. 10802/12125 ibs. 14462/16534 ibs. 14462/16534 ibs. 13444/14550 ibs. 13444/14550 ibs. 19400/21605 ibs. 19400/21605 ibs. 21715/23479 ibs. 21715/23479 ibs. 24030/25794 ibs. 24030/25794 ibs. 26433/28214 ibs. 26433/28214 ibs.
Packing dimensions (L x W x H) 90" x 80" x 90" 90" x 80" x 90" 112" x 88" x 101" 112" x 88" x 101" 121" x 91" x 102" 121" x 91" x 102" 152" x 92" x 100" 152" x 92" x 100" 137" x 90" x 100" 137" x 90" x 100" 191" x 88" x 88" 191" x 88" x 88" 120" x 88" x 81" 120" x 88" x 81" 203" x 90" x 100" 203" x 90" x 100" 247" x 90" x 110" 247" x 90" x 110" 300" x 90" x 100" 300" x 90" x 100" 322" x 104" x 100" 322" x 104" x 100"

Accessories

Standard Accessories
Leveling Bolts with Blocks
Balancing Stand
Tool Box with Tools
Grinding Wheel with Flange
Wheel Extractor
Spindle Inverter
Diamond Pen with Holder
Working Light
Three-Color Warning Lights
Operation Manual and Part List
Coolant Tank
Splash Guard For Table
Optional Accessories
Electromagnetic Chuck.
Permanent Magnetic Chuck
Fine-Pole Permanent Magnetic Chuck
Tilting Permanent Magnetic Chuck
Chuck Controller
Oil Mist Collector
Dust And Mist Collector
Dust Collector
Rotary Table
Indexing Table
Single Disc Roller Dresser
Multi-tip Diamond Dresser
Roller Type Balancing Stand
Linear Scale (Y/Z Axis)
Fully Enclosed Splash Guard
Extra Grinding Wheel Flange
Coolant System w/ Magnetic Separator
Coolant System w/ Paper Filter
Coolant System w/ Magnetic Separator and Paper Filter

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