6" X 18" ACRA MODEL 618S MANUAL SUPER PRECISION SURFACE GRINDER

• Table surface guaranty (Testing grinding piece* 6, thickness difference.): 0.0001 “.
• 2HP V3 grade low vibration spindle motor.
• High precision cartridge-type spindle, ABEC Class 7 (P4) bearings (1 roller bearing and 2 angular contact ball bearings), 0.0001” TIR.
• Cross Double V and Longitudinal V & flat, and TURCITE B coated with hand scraped, 3 axes are solid slide ways for superior accuracy with longer machine life.
• One-piece casting base and slide way, column casting is enhanced for extra rigidity.
• All main castings are made of “Meehanite GC275” and stress have been annealed for long lasting and accuracy.
• Automatic and central lubrication system.
• Suitable for both precision surface grinding and form.
• Made in Taiwan

Specifications:
Capacity:                                                                                  6” x 18”
Maximum Grinding Length:                                                    18.5″
Maximum Grinding Width:                                                      6.3″
Maximum Distance from Table to Spindle:                             15.7″
Working Surface area:                                                             18.3″ x 6″
Maximum Longitudinal movement:                                        18.9″
Maximum Cross movement:                                                    7″
Grinding Wheel Spindle Motor:                                               2.0 HP x 2P
Grinding Wheel Spindle revolution (60Hz):                             Max. 3600 rpm
Grinding Wheel Diameter x width x bore:                                8″ x 0.5″ x 1.25″
Longitudinal Hand Feed per revolution:                                  4.1″
Cross Hand Feed per revolution graduation of Dial Ring:       0.2″/rev 0.001”
Vertical Hand Feed per revolution graduation of Dial Ring:    0.05″/rev 0.0001″
Weight                                                                                     1600 lbs

Standard Equipment:
• Auto Lubrication.
• Kanetsu Permanent Magnetic Chuck.
• 1 PC Grinding Wheel.
• 1 SET Grinding Wheel adaptor & Flange Extractor.
• 1 PC Arbor for wheel balancing.
• 1 SET Diamond Dresser (1/4 carat) with a base.
• 1 PC Dust Guard.
• 1 SET Halogen Working Lamp.
• 3 PCS Leveling plates.
• 3 SETS Leveling bolts with nuts.
• 4 PCS Eyebolts.
• 2 SETS T-Nut & screws.
• 1 SET Necessary tools with a toolbox.
• 1 CAN Lubrication oil (4 liter).
• 4 PCS Plug (5/8″).
• 1 Copy Operation manual and inspection certificate.
• 1 CAN Spare Paint.