Second-hand Yujing 13B Double-Sided Grinding Machine, Double-Sided Mirror Polishing Machine, Surface Thinning Machine for Sale

Factory low-price transfer of 8-9/10 new Yujing 13B double-sided grinding and polishing machine, training and debugging available.

Widely used for products requiring double-sided grinding and polishing. Suitable for mass production of high-precision large and small workpieces. Such as: sapphire watch glass, mobile phone glass, optical glass wafers, LED sapphire substrates, ceramic plates, piston rings, valve plates, aluminum iron boron, ferrite, lithium niobate, lithium tantalate, PTC thermistors, optical disc substrates, ceramic sealing rings, cemented carbide sealing rings, tungsten steel sheets, and various other materials for double-sided grinding and polishing.

Main Features:

1. Equipped with AC variable frequency motor drive, soft start, soft stop, stable and reliable.

2. Hydraulic lifting gear ring, very stable, with shims under the sun gear for position adjustment, effectively utilizing the gear ring and sun gear.

3. The upper plate is equipped with a separate slow descent cylinder, not only effectively preventing breakage of thin and brittle workpieces but also allowing independent pressure control.

4. By using an electronic preset counter, the number of grinding cycles and requirements can accurately control the dimensions of the ground products.

5. The grinding disc can be dressed using a disc dressing method, achieving a flatness of 0.005mm after disc correction.

6. Can be connected to ALC (frequency monitor).

Technical Parameters

1. Grinding disc diameter (MM): φ960×φ340×50

2. Maximum ideal grinding diameter (MM): φ345

3. Workpiece flatness parallelism: 0.2μ(φ10)

4. Planetary gear parameters: Imperial DP12, Z=153

5. Number of planetary gears: 5

6. Minimum grinding thickness: 0.15mm(φ10)

7. Main motor power: 11KW (grinding) 7.5KW (polishing)

8. Lower grinding disc speed (rpm): 0~60

9. Sand pump power: 370W

10. Sand flow method: Circulation or drip

11. Equipment dimensions (MM): 1250×1540×2780

12. Weight (KG): ~3200