The ACC 618DX is an automatic saddle type surface grinder for precision surface grinding applications. Its fully supported table, double-V ways, automatic grinding cycles, and integrated wheel dressing provide a straightforward platform for repeatable grinding in toolroom and production environments.
ACC 618DX Features:
| Max Cross Travel | 6.9" |
|---|---|
| Max Table Travel | 20.8" |
The ACC 618DX uses a fully supported table design to maintain consistent table support throughout longitudinal travel. Double-V table ways provide controlled linear movement for repeatable surface grinding, while the saddle-type configuration keeps the machine compact for toolroom and production environments. Okamoto positions the ACC 618DX as the automatic-control model within its current Saddle Series.
This automatic surface grinder features shift-plunge cycles to reduce manual intervention during repetitive grinding operations. The machine also includes automatic lubrication and a frequency inverter for the spindle motor. These functions support consistent process control across surface grinding applications with changing stock-removal and finish requirements.
An overhead dresser and automatic dressing cycle allow the ACC 618DX to condition the grinding wheel during the machining process. This helps maintain wheel geometry as grinding progresses. Optional equipment can further expand the machine with coolant systems, automatic wheel balancing, magnetic chucks, chuck datum capability, and additional process-control equipment.
| Max Cross Travel | 6.9" |
|---|---|
| Max Table Travel | 20.8" |
ACC 618DX Series Specifications:
The Okamoto ACC 618DX is a compact automatic surface grinder for toolroom and production work where a 6-by-18-inch-class grinding envelope aligns with smaller precision parts, fixtures, and die components. A.W. Miller Technical Sales supports manufacturers throughout New York, Pennsylvania, Maryland, Delaware, Southern New Jersey, and Quebec with applications engineering, installation, training, and service support.
Its value is not simply footprint. The machine provides an automatic-control step up from manual surface grinding while preserving the accessibility and process visibility needed for short-run work, recurring components, and frequent setup changes.
Applications commonly evaluated for the ACC 618DX include:
The 618-class work envelope is suited to smaller components that do not need the table capacity of larger saddle or column grinders.
Operators can set work, indicate fixtures, dress the wheel, and inspect parts without the physical scale of a large production grinder.
Automatic grinding helps standardize roughing, finishing, and spark-out on recurring jobs.
Using a smaller grinder for appropriately sized work can reduce setup burden and avoid tying up larger grinding capacity.
It identifies the compact 6-by-18-inch-class format associated with this surface-grinder platform. Actual chuck size, travel, and work envelope should be confirmed for the machine configuration being quoted.
Small plates, inserts, fixture components, toolroom details, and recurring flat parts are typical candidates when their size, material, tolerance, and finish match the machine and wheel setup.
Automatic cycling can reduce operator involvement during repeated passes and improve consistency on recurring work while keeping the compact footprint and familiar surface-grinding process.
Contact area, pole pitch, part thickness, material, grinding direction, and side support all matter. Small or thin components may require additional blocking or specialized workholding.
Not for every application. It is better suited to automatic surface grinding; complex contours, programmed forms, or multi-position CNC work may point toward a machine such as the ACC 818SAiQ.