500A General‑purpose Medium‑sized Plasma Polishing Machine (Best‑selling Standard Model)

1. Inner Tank Assembly

• Material: Double‑sided welded construction with 3 mm thick 316L stainless steel plate.
• Dimensions: L 1100 mm × W 800 mm × H 830 mm
• Insulation: A 20 mm thick bakelite board provides electrical isolation between inner tank and outer frame to effectively prevent safety incidents.

2. Main Frame Assembly

• Material: Fabricated by welding 50 mm × 50 mm × 2.0 mm 304 stainless steel square tubes.
• Overall Dimensions: L 1600 mm × W 1700 mm × H 2100 mm
• Operation Panel: Bent and welded from 2 mm thick 304 stainless steel plate.
• Lifting Door: Outer frame welded from 40 mm × 40 mm × 1.0 mm 304 stainless steel square tubes, externally covered with bent 1.2 mm 304 stainless steel sheets.
• Closed Door Panel: Bent‑formed from 0.8 mm thick 304 stainless steel plate.

3. Transmission System

• Door Transmission: Φ30 linear guide rails are mounted on both sides of the lifting door. 30MULL linear sliders are fitted to the lifting door and cooperate with guide rails. A frequency‑converter‑driven reduction motor drives 304 stainless steel chains for door lifting and lowering.
• Hanger Transmission: Φ30 linear guide rails are installed on both sides of the lifting frame. 30MUL linear sliders connect the lifting carriage with guide rails. A frequency‑converter‑driven reduction motor drives 304 stainless steel chains for hanger up‑and‑down movement.
• General Transmission Description: An AC220 V frequency converter drives the reduction motor. The motor drives chains to actuate linear sliders for door opening/closing and hanger lifting/lowering.
• Hanger Stroke: 700 mm

4. Power Supply (Three‑Phase Full‑Bridge Rectification or Three‑Phase Inverter Rectification)

4.1 Three‑Phase Full‑Bridge Rectifier Power Supply (for materials excluding gold, silver and titanium) Operating Parameters

• Input: 3‑Phase AC 380 V ±5%
• Frequency: 50 Hz
• Output Power: 150 kW
• Output Voltage: Non‑adjustable (subject to mains supply fluctuation)
• Max Output Current: 500 A
• Cooling Method: Air cooling

4.2 Three‑Phase Inverter Power Supply (for gold, silver and titanium materials) Operating Parameters

• Input: 3‑Phase AC 380 V ±5%
• Frequency: 50 Hz
• Output Power: 150 kW
• Output Voltage: 0‑400 V adjustable constant voltage
• Max Output Current: 500 A
• Cooling Method: Air cooling

5. Temperature Control System

Heating is realized by 316 seamless stainless‑steel heating tubes. Temperature sensors and AD temperature modules feed temperature readings to the PLC, and the PLC regulates heating through contactors.

6. Water‑Level Control System

Float ball with micro‑switch sends signals to the PLC. The PLC performs logical calculation to control the water‑make‑up solenoid valve.

7. Air Supply System

Connect external compressed‑air source. The throttle valve on the operation panel controls compressed‑air flow into the bottom of the inner tank for bath agitation.

8. Automatic Flip Function

Rotary telescopic cylinder engages with the hanger tenon to achieve 180° flipping (optional device).

9. Automatic Clamping Function

Special cylinder drives transmission linkage to realize automatic clamping (optional device).

10. Electrical & Control System

• Main control unit: Xinje PLC module.
• HMI: Weinview 7‑inch color touch screen.
• Operation modes: Full manual, full‑process automatic or partial‑manual operation.
• Cabinet layout: Control cabinet and DC power cabinet are placed separately.

11. Site Layout Requirements

• Required installation space dimension: L 5000 mm × W 5000 mm × H 2800 mm (Includes overflow trough and loading‑unloading workstation; excludes distillation drying tank and mixing tower footprint).
• Workshop clear‑height requirement: Minimum 2800 mm.

12. On‑Site Utility Requirements

• Compressed air pressure: ＞ 6 kg/cm²
• Tap‑water supply: Flow ＞ 2 t/hr, pressure ＞ 3 kg/cm²
• Power supply: 3‑phase 5‑wire wiring system; 380 V with voltage fluctuation not exceeding ±5%.

13. Power Distribution & Exhaust

• Standard power cable: 3+2 core 70 mm²
• Main circuit‑breaker: 300 A (Note: If distillation drying tank is equipped, adopt 3+2 core 95 mm² cable and 400 A main circuit‑breaker.)
• Exhaust system: Φ250 PP exhaust duct with PP or stainless‑steel exhaust fan.