In-Line Vacuum Potting Machine
Voids and bubbles in potted electronics cause insulation failure, leakage and costly field returns. This in-line vacuum potting machine moves workpieces through loading, vacuum potting and unloading on one conveyor — degassing at up to −98 kPa while servo pumps meter and mix two-component material with ±2% accuracy.
−98 kPa In-Line Vacuum | ±2% Mixing Ratio Accuracy | 1:1–10:1 Adjustable Ratio
Introdução ao produto
Início › Produtos › Dispensing & Potting › In-Line Vacuum Potting Machine
The HY in-line vacuum potting machine is built for continuous, bubble-free encapsulation on automated production lines. Unlike batch vacuum chambers that stop the line for loading and unloading, this in-line vacuum potting machine moves workpieces through loading, vacuum potting and unloading on a chain or belt conveyor — so upstream and downstream processes stay connected and takt time stays predictable.
Inside multi-stage vacuum chambers, the system holds up to −98 kPa while servo-driven metering pumps mix two-component epoxy, polyurethane or silicone at a 1:1–10:1 ratio with ±2% accuracy. Raw material and workpiece cavities are degassed synchronously, clearing micro-bubbles from deep, narrow geometries that atmospheric potting cannot fill reliably.
Every shot’s ratio, vacuum level and potting volume is recorded and can be exported to your MES, giving automotive and new-energy manufacturers the traceability their audits demand.
Especificação
| Item | In-Line Vacuum Potting Machine |
|---|---|
| Type | In-line vacuum potting machine (chain / belt conveyor versions) |
| Vacuum level | Up to −98 kPa, multi-stage graded degassing |
| Mixing ratio | 1:1 – 10:1, adjustable, closed-loop servo control |
| Ratio accuracy | ±2% |
| Dispensing accuracy | ±3% |
| Metering pumps | Gear / screw / piston (material-dependent), independent A/B servo drives |
| Material tanks | 15L / 30L / 55L optional, heating + stirring + degassing |
| Multi-head metering | 1–4 sets (optional) |
| Compatible materials | Epoxy, polyurethane, silicone, AB adhesives; viscosity up to 500,000 cps |
| Mixing method | Dynamic / static |
| Control system | Windows 10 PC + touchscreen, recipe storage, MES/ERP link via Ethernet |
| Monitoring | Pressure, flow, weighing, liquid level, stirring; glue-shortage and vacuum-leak alarms |
| Power supply | AC 220V, 50Hz |
| Air supply | 0.5–0.7 MPa |
Specifications can be customised to your workpiece and material.
Caraterísticas
- In-line continuous flow — loading, vacuum potting and unloading run in one connected process with no manual transfer, keeping takt time predictable.
- Multi-stage vacuum degassing — raw material and workpiece cavities are degassed synchronously at up to −98 kPa, clearing micro-bubbles from deep, dense geometries.
- Independent closed-loop servo metering — separate servo motors drive the A and B components with real-time pressure feedback; the ratio adjusts in software from 1:1 to 10:1 with no gear change.
- Automatic cleaning & anti-curing — auto-clean cycle with a 0–300s adjustable anti-curing timer keeps the mixing tube clear between shifts.
- Full process monitoring — pressure, flow, weighing, tank level and stirring are monitored continuously; anomalies trigger an alarm and stop before a bad part is made.
- Quick-change programs — hundreds of stored trajectories and recipes; changeover by program recall plus fixture swap.
- MES-ready data — per-shot records (ratio, vacuum, volume) export to MES/ERP for full batch traceability.
- Safety package — leak detection, air-pressure alarm, emergency stop and light curtain.
Optional Configuration
| Option | What it does |
|---|---|
| Vacuum chamber: single / double / triple, custom sizes | Chamber capacity matched to your takt time and part size |
| Chain / belt conveyor, adjustable width | Fits your existing line layout |
| 3-axis gantry, adjustable XYZ stroke | Covers large or tall workpieces |
| Single / dual dispensing valves | Large-volume or dual-material potting |
| Metering pump modules (gear / screw / piston) | Matches metering to your material’s viscosity and filler content |
| 15L / 30L / 55L heated stirring tanks | Capacity for your daily consumption; heating stabilises viscosity |
| CCD vision positioning | Automatic workpiece location for irregular housings |
| Post-potting curing tunnel | In-line curing without a separate oven |
| Automatic cleaning & anti-curing unit | Keeps the mixing tube clear between shifts |
Comparison
| In-Line Vacuum Potting | Atmospheric Potting | |
|---|---|---|
| Residual voids | Below 0.1% | Typically 2–5% |
| Complex geometries / undercuts | Fills reliably | Air traps likely |
| Process flow | Continuous in-line | Batch, manual transfer |
| Rastreabilidade | Per-shot recording, MES-ready | Limited |
Typical property ranges from published material guides; check your compound’s TDS for exact figures.
| Property | Epoxy | Polyurethane (PU) | Silicone |
|---|---|---|---|
| Cured hardness | Shore D 70–95 (rigid) | Shore A 30 – D 60 (flexible–semi-rigid) | Shore A 20–70 (elastomeric) |
| Continuous temperature | Up to 150–180°C | −40 to 120–130°C | −55 to 200°C |
| Adhesion | Excellent | Good–excellent on plastics | Moderate (primer recommended) |
| Thermal shock resistance | Fair (can crack) | Good | Excellent |
| Reworkability | Poor | Poor | Excellent (cuttable) |
| Relative cost | Medium | Low–medium | High |
| Typical automotive use | Power modules, coils needing structure | Sensors, connectors needing flex | High-temperature / high-vibration electronics |
| On this machine | ✔ | ✔ (vacuum recommended — PU traps bubbles easily) | ✔ |
Packaging & Delivery
The in-line vacuum potting machine is packed in a fumigation-free export wooden case with moisture protection, fixed for sea freight. Standard machines ship in 30–45 days; customised configurations in 60–120 days depending on complexity (final schedule in contract). HY engineers provide installation, commissioning and operator training on site or by video, with process parameters set against your own parts before handover. Warranty and after-sales terms follow the sales contract; remote troubleshooting is available for overseas customers, and every machine’s potting programs and calibration data are archived by HY for lifetime support.
Core Advantages
Multi-stage vacuum chambers hold up to −98 kPa while material and cavities degas synchronously — void residue under 0.1% on deep, narrow geometries.
Chain or belt conveyor carries workpieces through loading, potting and unloading without manual transfer — takt time stays predictable across shifts.
Servo metering pumps adjust the A:B ratio from 1:1 to 10:1 at ±2% accuracy, with hundreds of storable recipes for fast product changeover.
Stainless steel tanks with heating, stirring and degassing keep epoxy, PU and silicone at constant viscosity — no bubbles from the supply side.
Every tray’s ratio, vacuum level and potting volume is recorded with NG alarms, exportable to MES/ERP for audit-ready quality evidence.
Integrated vacuum chambers and dispensing gantry fit existing lines — no separate degassing station, no offline chamber queues.
Aplicações


- EV BMS & High-Voltage Power Modules
Mass in-line vacuum potting for EV BMS high-voltage boards and battery management modules. Independent multi-stage chambers keep cycle time aligned with upstream SMT lines.
New energy & lithium battery industry
- Automotive ECU & Sensor Controllers
Built for Tier 1 suppliers’ controller encapsulation. The conveyor links pre-assembly to final test, cutting manual transfer between stations.
- Inverters, Transformers & Motor Coils
Deep-coil vacuum potting for medium and high-power inverters and transformers. Heated tanks and servo metering hold ratio accuracy over long shifts.
- On-Board Chargers for Commercial EVs
Heavy-duty in-line configuration for truck on-board charger modules. Wide conveyors and large chamber volumes suit oversized enclosures.
New energy & lithium battery industry
- R&D Pilot & Small-Batch Potting
Compact bench in-line pilot setup for process validation and small batches. Recipes carry straight over to the full production line.
FAQ
A batch vacuum chamber stops the line for manual loading, pumping down and unloading. An in-line vacuum potting machine moves workpieces continuously through loading, vacuum potting and unloading on a chain or belt conveyor — upstream and downstream processes stay connected and takt time stays predictable.
The multi-stage vacuum chambers hold up to −98 kPa. Raw material and workpiece cavities are degassed synchronously, so micro-bubbles are pulled out of deep, narrow geometries before and during potting — cutting residual voids to below 0.1%.
It runs two-component epoxy, polyurethane and silicone (AB adhesives) with viscosities up to 500,000 cps. Dynamic or static mixing is available depending on the compound, and vacuum potting is strongly recommended for polyurethane, which traps bubbles easily at atmospheric pressure.
Yes. The mixing ratio adjusts from 1:1 to 10:1 in software and the system stores hundreds of potting programs. Changeover is by program recall plus a fixture swap — no hardware change needed for the metering pumps.
Every shot’s mixing ratio, vacuum level and potting volume is recorded automatically, with NG alarms on any deviation. Records can be exported to your MES/ERP system for audit-ready quality evidence.
Standard machines ship in 30–45 days; customised configurations take 60–120 days depending on complexity. HY engineers provide installation, commissioning and operator training on site or by video, with process parameters set against your own parts before handover.
Get a Quote for the In-Line Vacuum Potting Machine
Send us your workpiece drawing and potting material — our engineers will reply with a configuration and quotation.
Send Inquiry | Email: vip@huayuautoline.com | WhatsApp: +86 18158897969









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