Environment-Friendly Surface Grinder
Surface finish and accuracy are both important for surface grinder since they are used for final process. Majority of grinders use scraping ways and hydraulic system for table longitudinal movement. Therefore, surface grinder normally consumes large quantities of oil.
Due to the rising concern of environment protection, Okamoto has redesigned and developed an environmentally friendly surface grinder ? PSG64Li. The design of this Linear Motor/Non-Contact Table driven machine eliminates the need for hydraulic oil and its related cost as well as power consumption. Start-up is fast and table reciprocation is silk-smooth and twice as fast as machine with hydraulic table drive.
Available size: 600mmx400mm
Superior Productivity
Due to the smoothness of the table, the average table speed is 35m/min vs. 20m/min of the conventional hydraulic machine. It cuts down the processing time on a work piece up to 60 when comparing with a conventional hydraulic machine, not only reduces the processing time, it also raises the productivity.
Elimination of Hydraulic System and Reduction of Lubricant Consumption
By eliminating the need of hydraulic oil, temperature control is not required. All the maintenance work to replace hydraulic oil is now eliminated as well.
Unlike the ordinary grinder, hydraulic oil needed to be changed once a year, Okamoto LI machine does not require any oil change.
In stead of supplying the lubricant in a gear box, this machine was designed with oil mist lubrication system for both vertical and crossfeed gear box; thus the lubricant consumption is significantly reduced.
Due to the elimination of hydraulic system and the reduction of lubricant, it only consumes 0.8 L oil comparing to the same sized hydraulic driven machine which consumes 120L of hydraulic oil, this leads to a 99 reduction.
Reduction of industrial waste
Okamoto adopted the circulation type water injection system, with an automatic high pressure cleaning system. This system uses air which cools the linear motor coils. With the water injection system, the grinding lubricant can maintain its clean state for a long period of time. Consequently it dramatically reduces the filter change interval, and the cost of lubricant exchange.