Internal Grinder
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Pintai Machinery is a specialized manufacturer of high precision samll grinders. In addition, we can design and manufacture various grinders according to customer's requirements. Currently we offer a series of equipment applicable for front process in tungsten carbide tool production, including tungsten carbide step-tool grinders, NC fully automatic chamfering machine, NC fully automatic carbide tool cutting machine, internal grinders, external grinders, polishing machines and cutting machines...etc.

, 3-Jaw Chuck type Internal Grinder Dry Grinding Model (Standard) Wet Grinding Model (Optional)With Coolant flushing system and splash guard Modle/Specification Clamping range of workpiece diameters Range of grinding diameter Travel X axis Travel Y axis Y axis feed per graduation X Y axis feed method X Y axis feed rate Work Head Work spindle speed (variable) Work head swiveling angle Work head servo motor Grinding Wheel Head Grinding wheel motor Grinding wheel spindle speed (variable) Machine dimension(L*W*H) Machine weight (approx.)

► Work Head • This machine employs a 4" 3-jaw chuck for clamping workpiece. ■ The entire work head can be swiveled in the range of 22.5 (single side) that makes the machine suitable for grinding internal taper of workpiece. Work head spindle speed is variable 0~600rpm. Grinding bar 3030.6060 Tool box and Kit Working light Grinding wheel spindle 50,000 rpm ER11 Nut ER11 Collet (03 - 0 6 one each) ±45° Rotary table Linear scale (two axes 1pm) Coolant device Vacuum cleaner Screw molds Sleeves ► Applications Nut molds Micro parts

| Roller Type Internal Grinder

► Machine Features • Workpiece is held by rollers. • X / Y axis feeds are manually operated. • The grinding wheel spindle running is controlled through a frequency inverter. • Variable speed change for the wheel spindle and the work spindle. • Double "V" slideways are hardened. Slide surfaces are precision ground, coated with Turcite-B and hand scraping. ► Work Head The workpiece is held on the rollers and can be adjusted vertically to achieve an accurate alignment between the workpiece and the grinding wheel. The entire work head can be swiveled in the range of ±5" that makes the machine...

3-Jaw Chuck type NC Internal Grinder ► Optional Accessories : Coolant system, Fully cover

Equipped with a NC controller in combination with the use of touch-screen permits easy operation. Workpiece is clamped securely by a 3-jaw chuck allowing for rapid feed. Rugged machine structure assures maximum stability during grinding. X / Y axis automatic feed are driven by individual servo motor. Variable speed chage for the wheel spindle and the work spindle. High wheel speed dramatically increases machining efficiency and improves surface finish. Double "V" slideways are hardened. Slides surfaces are precision ground, coated with Turcite-B and hand scrapping. 3-Color warning lamp...

Ver. 201802 PINT A! MACHINERY CO., LTD. No.322, Lianchu Rd., Fengyuan Dist., Taichung, Taiwan 42082 V. +886-4-2537 0951 -ft www.pintai-tw.com