What Is a VC Vacuum Degassing & Sealing Machine?
A VC vacuum degassing and sealing machine is an integrated production equipment that combines multi-stage vacuum degassing, precision working-fluid filling, and hermetic sealing into a single automated cycle for vapor chamber (VC) manufacturing. Unlike conventional single-process machines that handle each step separately, our all-in-one system performs loading, port positioning, local vacuum sealing, rough and high-vacuum degassing, closed-loop filling, pre-sealing, and final welding within one machine cycle — eliminating product transfer losses and improving batch-to-batch consistency.
Why Choose Our All-in-One VC Sealing Equipment
Four core values define what European and global thermal manufacturers consistently demand: process stability, modular adaptability, traceable quality control, and long-term reliability. Our machine is engineered around them:
• Modular quick-change fixtures — One machine handles multiple VC sizes via recipe-based changeover in under 15 minutes.
• Local vacuum sealing chamber — Only the filling port area is evacuated, reducing pump load and cycle time by 40-60% vs. full-chamber designs.
• Closed-loop precision filling — Servo metering pump + mass flowmeter + weighing feedback achieve ≤±1% filling accuracy.
• Two-stage sealing (pre-seal + final weld) — Eliminates air re-ingress and working-fluid evaporation between filling and welding.
• Full data traceability — Vacuum level, filling weight, pressure decay, welding parameters and NG reasons are logged and exportable to MES/SCADA.
• International components — SMC, Festo, Pfeiffer, Edwards, Siemens, Schneider, Keyence — for global service-network compatibility.
• CE-oriented safety design — Safety interlocks, light curtains, e-stop circuits, and clearly defined maintenance zones.
How It Works: 12-Step Vacuum Filling & Sealing Process
Below is the standard process sequence executed within a single machine cycle. Each step is monitored and logged for full traceability.
| Step | Process | Description |
| 1 | Loading | Manual, tray, conveyor or robotic loading |
| 2 | Positioning & Clamping | Length positioning, port guiding and side clamping |
| 3 | Local Sealing | Vacuum chamber closes to form a sealed port area |
| 4 | Rough Vacuum | Fast removal of air from product and port area |
| 5 | High Vacuum Degassing | Further degassing and vacuum stabilization |
| 6 | Vacuum Holding Test | Detects leakage of product or fixture |
| 7 | Precision Filling | Fills preset working-fluid amount per recipe |
| 8 | Filling Verification | Triple-feedback verification (flow / weight / pump) |
| 9 | Pre-Sealing | Prevents air ingress and fluid evaporation |
| 10 | Final Sealing / Welding | Completes final hermetic sealing |
| 11 | Online Inspection | Pressure decay, vacuum holding, or helium leak |
| 12 | Unloading & Traceability | Good-part unloading, NG sorting, data logging |
Key Innovative Modules & Technical Highlights
1. Modular Quick-Change Fixture
The fixture adopts a modular quick-change structure including a positioning base, port guide, side clamping unit, anti-deformation support, flexible sealing ring, and filling interface. Changeover between product models takes under 15 minutes via recipe selection — no tools required for standard SKU switches.
2. Local Vacuum Sealing Chamber
Instead of evacuating a large chamber, the system creates a local sealed space only around the product filling port. This reduces evacuation volume, shortens cycle time, minimizes working-fluid loss, and simplifies seal maintenance. Pump load is reduced by 40-60% compared with full-chamber designs.
3. Closed-Loop Precision Filling
Controlled by servo metering pump, mass flowmeter, or weighing feedback — or any combination of the three. The system auto-calls filling volume, speed, pressure, and temperature-compensation parameters per product recipe, enabling highly consistent batch production with ≤±1% accuracy.
4. Two-Stage Sealing: Pre-Seal + Final Weld
After filling, the product is first pre-sealed to prevent air re-ingress and working-fluid evaporation. Final sealing is then performed. Available final-sealing methods include mechanical crimping, laser welding, resistance welding, TIG welding, and other material-specific processes.
Technical Specifications
The table below corresponds to the H2-5 section. Adjust accuracy figures based on prototype-validation results.
| Item | Recommended Specification | Remarks |
| Application | Heat Pipe / Flat Heat Pipe / Vapor Chamber / Micro-Channel Cold Plate | Custom fixtures per drawing |
| Working Fluid | DI Water, Methanol, Ethanol, Acetone, R134a, R1234yf, etc. | Flammable fluids need explosion-proof zoning |
| Filling Method | Servo metering pump / mass flowmeter / weighing feedback | Combinable methods |
| Filling Accuracy | Target ±1% or better (configuration-dependent) | Subject to FAT validation |
| Vacuum System | Rough pump + high-vacuum pump + buffer tank (Pfeiffer / Edwards) | Optional condenser recovery |
| Inspection | Vacuum holding / pressure decay / helium leak interface | Per customer quality standard |
| Sealing Method | Crimping / laser welding / resistance welding / TIG welding | Selected by material |
| Control System | Siemens / Schneider PLC + HMI + recipe management + bilingual UI | MES / SCADA optional |
| Data Traceability | Vacuum level, filling weight, pressure, welding params, NG reason | CSV / Excel / MES-connected |
| Safety Standard | CE-oriented design, light curtain, interlocks, e-stop loop | UL / customer standard available |
Content | Applications & Industries Served
Our VC vacuum degassing and sealing machine serves R&D labs, pilot lines, and mass-production factories across the following sectors:
• AI server & data-center cooling — vapor chambers for NVIDIA GB200 / GB300 GPU modules
• Power electronics — IGBT / SiC module cold plates
• 5G communication — base-station and small-cell heat spreaders
• Consumer electronics — smartphone, laptop, and gaming-console vapor chambers
• Electric vehicles — EV battery-pack thermal management and motor-controller cooling
• Industrial automation — high-power LED, laser modules, medical imaging cooling
