External Thread Grinder

High-precision, high-efficiency cutting of all kinds of screws including triangular screws, trapezoidal screws, ball screws, screw gauges, and worm is available. We have the world's No. 1 delivery record of grinders for ball screw processing. You can input the elements of the workpieces in an interactive way to process virtually all kinds of screws (No programming is necessary). The temperature of the entire machine is controlled through coolant in sync with the room temperature, so slow temperature change can be tracked to realize high precision process stably. lubricant in sync with the coolant temperature (room temperature) is circulating at the center of axle of the master screw for table feed to control the temperature to realize high precision process of long screws. Dressers best suited for the thread grooves of workpieces are available.

Horizontal Maching Center

Box guide ways realize long term high-precision and high rigidity. Hardened box guide ways are attached to the surface which has high straightness and perpendicularity by scraping. The load to the column sliding section is reduced by air support for smooth high-speed feed despite the sliding method. Highly rigid Y-shaped integrated three-point support bed is adopted. Ball screws of all axes are placed in the center of the sliding surface to minimize the position difference. (In the case of standard main axis of HU63A/HU80A)

Jig Grinder

V-F sliding surfaces of X- and Y-axes, spindle head, top and bottom sides of horizontal bridges are scraped for extremely high geometric precision. Z-axis is NC-controlled and two types of control (Z-axis as cutting feed and Z-axis as chopping cycle) are available. As for Z-axis chopping cycle, the ball screw drive has realized the high speed of 200 cycles/min (at 25 mm stroke). Even at this speed, the bottom dead center precision is 2µm (300G, 4GDN, 6GCN). In 3GEN, the linear motor is adopted to the Z-axis (first practical application for machine tools). Z-axis chopping cycle of 400 cycles/min (at 25 mm stroke), which was impossible for traditional models, has been realized to drastically reduce the process time of contouring cutting. Low thermal expansion casting is adopted for the head material. Error due to heat displacement is extremely small .

Vertical Machining Center

VU50A12,000 min-1 main axis, which is standard equipment, is directly driven and heat displacement is minimal because the motor and the main axis are heat insulated. X- and Y-axes realize smooth movement by the sliding surfaces of the rolling guide ways and Z-axis sliding surfaces realize rigidity by sliding guide ways. The surface to which guide ways are attached has high straightness and perpendicularity by scraping. Precision can be maintained for a long time, not to mention the initial precision. Machine temperature uniformization device that realizes stable processing without effects of ambient temperature is available by option.