KEY FEATURES
BI-FUNCTION DESIGN: YJCS-5B is a bi-function polishing machine. It works much faster than manual polishing; it also can polish deep and narrow areas where manual polishing cannot reach.
EDM EROSION FUNCTION: Its EDM erosion function offers an economical and fast approach to polish extra-hard alloy or carbide.
COMPACT FOOTPRINT: Machine occupies a small work place.
ULTRASONIC VIBRATION TRACKING SYSTEM: Ultrasonic vibration tracking system for consistent performance.
PRECISE POWER CONTROL: Nine step numerical EDM power control and nine step numerical vibrating power control.
AUTOMATIC GAP ADJUSTMENT: Able to adjust the EDM gap automatically to obtain maximum output.
FINE EDM PROCESS: Fine EDM process, suitable for intricate mould.
ENERGY EFFICIENT: Controlled power output and stored current consume little power.
ERGONOMIC HAND PIECE: The hand piece is light and handy, reduce fatigue and promote efficiency.
SPECIFICATIONS
Application: Ribs, slits, tapered holes of dies, different shaped holes and other areas that are hard to polish or finish by hand
Applicable Material: Steel, carbide, glass, precious stones
EDM Fluid: Kerosene or water
Input: Single phase 220V 50Hz
Output: 60W, 19-28 KHz, 9-stage output selection
Dimensions: 230 x 130 x 78 mm
Weight: Approx. 5 kg
FINISHING RESULTS
Appearance:
After polishing, the surface should be flatly lapped; all EDM, wire-cut or milling marks should be removed.
Roughness:
After EDM Erosion Stage 1, the surface roughness should be below Ra0.3
After complete ultrasonic finishing, the surface roughness should be around Ra0.012 (mirror finish)
Ultrasonic Finishing Speed:
| Tip Type | Roughness | Approx. Speed |
|---|---|---|
| Ceramic stone tip | Ra2.5-Ra0.5 | 1 cm²/min |
| Brass rod tip | Ra0.1-Ra0.2 | 2 cm²/min |
| Hard wood tip | Ra0.3-Ra0.05 | 1 cm²/min |
| Soft wood tip | Ra0.05-Ra0.012 | 1 cm²/min |
The speed may differ due to operator familiarity and working area complexity.
EDM Erosion Speed:
2 mm³/min
PACKAGE INCLUDES
1 x YJCS-5B Polishing Machine
1 x Set of Accessory








