The Okamoto ACC 8-20DX is a precision saddle-series grinder built to hold tight finishes on hardened dies, fixtures and tool steels. A heavy Meehanite base, V-and-flat table ways, and servo-driven vertical feed let you dial repeatable 0.00005 in increments, while the hydraulic system sweeps the 8" x 21.6" table up to 25.6" at speeds to 82 FPM—perfect for production routines or fine tool-room work.

Outfitted with a Kanetec Mag-Clean separator and paper-bed filtration, this grinder keeps coolant crystal-clear, extending wheel life and holding mirror finishes even on carbide inserts. The 2 HP, 3,600 RPM spindle powers an 8" wheel through rapid-feed roughing, then slows to spark-out for micron-level tolerances, supported by manual micro-feed and programmable spark-out cycles. Compact at 95" x 63" and under two tons, the ACC 8-20DX brings top-tier surface-grinding accuracy to any tool room or small-lot production cell, all on standard 230V three-phase power.

MakeOkamoto
ModelACC8-20DX
Year2010 or older
Product #15447
Price Please login to see price.

Make an Offer Get a Quote Ask a Question

About This Machine

The Okamoto ACC8-20DX is a precision 3-axis automatic surface grinder featuring an 8” x 20” electromagnetic chuck, 8” max grinding wheel, and a high-performance filtration system with a Kanetec Magclean magnetic separator—ideal for high-accuracy, high-efficiency grinding applications!

**All descriptions and specifications are preliminary and must be confirmed by buyer prior to purchase.**

Live Tooling / Milling

Specifications

Vertical Table / Pallet Size: 8" x 21.6"""

Capacity: 440lbs

Spindle

Spindle Motor: 2 HP

Second Spindle

Tool Changer

Turret

Control

Tailstock / Steadyrest

Options

Product Description: Filtration Unit with Kanetec Magclean Magnetic Separator
Maximum Table Movement (Manual): 25.6”
Maximum Distance from Spindle/Grinding Wheel to Table: 15.7”
Maximum Table Load (Including Chuck): 440 lbs
Grinding Wheel Size: 8” diameter x 1” width x 1.25” bore
Wheel Speed: 3,600 RPM
Spindle Motor: 2 HP
Hydraulic Motor: 1 HP
Vertical Rapid Feed and Downfeed Motor: 0.5 HP AC Servo
Power Consumption (with chuck and coolant): 4.5 kVA

Auto Longitudinal Feed Rate: 3 – 82 FPM
Rapid Wheelhead Feed Rate: 40 IPM
Auto Wheelhead Downfeed Increments: 0.00005” – 0.0015”
Manual Downfeed (Micro Feed): 0.00001”/0.0001”/0.001”
Manual Downfeed (Hand Feed per Revolution): 0.001”/0.01”/0.1”
Number of Spark-Out Times: 0 – 5
Auto Cross Feed (Intermittent): 0.02 – 0.4”
Auto Cross Feed (Continuous): 4 – 40 FPM
Cross Manual Feed (Hand Feed per Revolution): 0.25”
Cross Manual Feed (Graduation of Handwheel): 0.001”

Electrical: 230V