One. Equipment use and characteristics of this machine is for sapphire grinding process and the development of a new generation of polishing equipment can also be used for other double-sided high-precision grinding hard and brittle materials. II. Features 1. This machine is a sun gear, ring gear tooth structure using a pin, long cruise life, easy maintenance and cleaning. 2. The machine has the disk speed, the disk rotation speed, wheel speed alone were sun setting function (speed, direction), user-friendly technology set (ring gear ratio and footwall speed mechanical linkage, but also matching trailer alone move). 3. This machine footwall support the use of large diameter closed hydrostatic bearing, large capacity, high running accuracy, using electrical proportional valve, precision weighing sensors and closed-loop control valve pressure, pressure and precise control. 4. The machine is in the ring alone mode lifting, lifting travel distance within the range (35mm) be adjusted by the stroke limit position switch. 5. The machine uses high-grade programmable logic controller (PLC) control. Programmable Terminal (PT) to display and set the operating parameters and working conditions, set by the user to store multiple sets of different process parameters (pressure, time, speed) for the operator to call; control logic and interface display according to customer demand configuration design; with the lower plate, the plate, the sun wheel inching function to facilitate pick and place slices. 7. The whole machine gantry structure, support stiffness; on the plate after rising to the highest position of insurance-linked automatic locking system on the disk, and provide a manual safety slings and security support to ensure the safe and reliable. 8. The machine is equipped with a centralized lubrication system, each movement of the machine can automatically lubricate parts; Second, the main technical parameters: 1. upper and lower plate size: φ1285 × φ695 × 60 2. ring parameters: Z = 264 PCD = φ1320 (pin teeth) 3. The sun gear parameters: Z = 132 PCD = φ660 (pin teeth) 4. planetary gear parameters: Z = 66 PCD = φ330 (pin teeth) 5. The number of star wheel travel: 9 6. The maximum load pressure: 1500kgf 7. The main motor (lower plate, the ring gear) 15Kw 1450rpm 8. on the disc drive motor 7.5Kw 1450rpm 9. sun wheel drive motor 2.2Kw 1440rpm 10. lifting motor: 0.75kW 1390rpm 11. Under polishing speed: 0 ~ 60rpm 12. on the disk rotation speed: 0 ~ 25rpm 13. The sun wheel speed: 0 ~ 20rpm 14. Dimensions (L × W × H): 2700mm × 1950mm × 2780mm 15. Equipment Quality: 7500Kg four. Equipment installation environment equipment should be installed flat on the ground, away from sources of vibration, dust, smog-free place. 1. Working temperature: 15 ℃ -25 ℃ 2. Air Source: 0.4-0.6MPa (dry and oil) 3. Relative humidity ≦ 80% 4. Power: AC380V, 50Hz (three-phase five-wire system)