Cooling-Thermal offers multiple water filling machine configurations to match different production requirements: the standard automatic water injection machine (±0.1ml accuracy for high-speed lines), the precision copper tube inject water machine and heat pipe water injection machine (both ±0.05% accuracy with positive displacement pump and auto-sensor triggering), and the combined automatic degassing and water injection machine — which integrates vacuum degassing and fluid injection in a single unit, achieving vacuum levels of 10⁻³τ before injection and 0.3–0.6τ after, with ±0.05g injection accuracy for water and ±0.2g for acetone. All models are available as standalone units or as integrated components of a complete heat pipe production line.
Key Specifications — All Models
| Model / Configuration | Key Specifications |
|---|---|
| Automatic Water Injection Machine | Injection accuracy: ±0.1 ml |
| Automatic Water Injection Degassing Machine | Pipe: Ø4–Ø10mm | Length: 80–500mm | Volume: 0–2.5ml | Accuracy: ±0.05% | Needle: Ø0.9×100L | Pump: Positive displacement |
| Copper Tube Inject Water Machine | Pipe: Ø4–Ø10mm | Length: 80–500mm | Volume: 0–2.5ml | Accuracy: ±0.05% | Needle: Ø0.9×100L | Pump: Positive displacement |
| Heat Pipe Water Injection Machine | Pipe: Ø4–Ø10mm | Length: 80–500mm | Volume: 0–2.5ml | Accuracy: ±0.05% | Auto-sensor trigger | Needle: Ø0.9×100L |
| Automatic Degassing & Water Injection Machine | Vacuum before injection: 10⁻³τ | Vacuum after: 0.3–0.6τ | Injection accuracy: ±0.05g | Acetone accuracy: ±0.2g | Pump: 40 two-stage screw |
Advantages of the Automatic Water Filling Machine
1. Production-Grade Injection Accuracy — ±0.05% Volume Control
Working fluid volume is one of the most critical parameters in heat pipe manufacturing — too little fluid results in dry-out at high power inputs; too much causes flooding that blocks vapour flow. Cooling-Thermal's water filling machines achieve ±0.05% injection accuracy using a positive displacement pump and precision metering system, ensuring every heat pipe contains exactly the correct fluid charge for consistent thermal performance across the entire production batch. This production-grade accuracy eliminates the fluid volume variation that causes performance spread and increased reject rates in thermal solution manufacturing.
2. Full Pipe Range Coverage — Ø4mm to Ø10mm in a Single Machine
All Cooling-Thermal water injection machine models support pipe diameters from Ø4 to Ø10mm and lengths from 80 to 500mm — covering the full range of standard copper heat pipe specifications used in thermal solution manufacturing for consumer electronics, servers, new energy, and industrial applications. B2B procurement teams sourcing a single water filling machine to handle multiple product variants across their thermal solution production line avoid the cost and complexity of separate injection equipment for each pipe specification.
3. Multiple Working Fluid Compatibility — Water, Acetone & Other Thermal Fluids
While the machine is commonly referred to as a water filling machine,Cooling-Thermal's degassing and water injection model supports both water (±0.05g accuracy) and acetone (±0.2g accuracy) injection — and can be configured for other working fluids used in specialised thermal solution applications. This multi-fluid capability is essential for heat pipe manufacturers producing components for different thermal solution markets, where the optimal working fluid varies by operating temperature range and application requirement.
4. Integrated Degassing + Water Injection — One Machine, Two Critical Steps
The automatic degassing and water injection machine integrates both the vacuum degassing step and the fluid injection step in a single unit — achieving vacuum levels of 10⁻³τ before injection and maintaining 0.3–0.6τ after injection, with both processes immersed in ice water for thermal stability. By combining these two interdependent steps, the integrated model eliminates the transfer time and vacuum loss associated with moving components between separate degassing and injection machines, improving both cycle time and injection accuracy in the thermal solution production process.
5. Auto-Sensor Triggering — Hands-Free Loading for Production-Line Speed
The heat pipe water injection machine uses a sensor switch that automatically triggers fluid injection when a copper tube is loaded and positioned upwards — eliminating manual trigger operation and maintaining consistent cycle timing without operator intervention. This auto-trigger mechanism, combined with the ability to set the injection volume via the control panel and straighten the pipe end before injection, is specifically designed for the production-line operating environment where consistent throughput and minimal operator touchpoints are both essential for thermal solution manufacturing efficiency.
6. Factory-Direct from a Specialist Thermal Solution Automation Manufacturer
Every Cooling-Thermal water filling machine is designed, manufactured, tested, and supported by our in-house engineering team in Kunshan, Jiangsu — not sourced from third-party suppliers or assembled from catalogue components. As a specialist thermal solution automation manufacturer since 2017, Cooling-Thermal has delivered complete heat pipe production lines — including water injection equipment — to Foxconn (25 lines), Nidec (20 lines), Furukawa Electric, Cooler Master, and YEH-CHIANG. B2B procurement teams benefit from the process knowledge built across these production line deliveries.
Applicable Pipe Specifications & Working Fluids
Cooling-Thermal's water filling machines support the following pipe and fluid specifications across the product range:
- Pipe diameter: Ø4 to Ø10mm — covering D4, D5, D6, D8, D10 standard heat pipe sizes for consumer electronics, servers, new energy, and industrial thermal solution applications
- Pipe length: 80 to 500mm — accommodating short heat pipe segments for compact electronics and longer pipes for server and industrial thermal solution applications
- Injection volume range: 0 to 2.5ml per tube — adjustable via control panel to match the working fluid fill ratio specification for each heat pipe design
- Working fluids: deionised water (±0.05g accuracy), acetone (±0.2g accuracy), and other compatible phase-change fluids for specialised thermal solution requirements
- Pipe wall thickness: 0.1mm to 1.0mm — compatible with both standard and thin-wall heat pipe tubes across different thermal solution product categories
If your heat pipe specifications — pipe diameter, length, working fluid type, or required injection volume — fall outside the above ranges, contact our engineering team to discuss OEM/ODM customisation.
Production Line Position — Where Water Filling Fits in Heat Pipe & Thermal Solution Manufacturing
| Production Step | Equipment |
|---|---|
| Tube forming | Automatic Shrinking Tube Machine (500 pcs/hr, D3–D8) |
| Powder filling | Copper Powder Filling Machine (4,000 pcs/hr) |
| Copper sintering | Vacuum Sintering Furnace (850–1000°C, 20-ton) |
| Water injection | Automatic Water Injection / Filling Machine |
| Vacuum degassing | Copper Heat Pipe Vacuum Degassing Machine (300 pcs/hr) |
| Tube sealing | Automatic Welder (550 pcs/hr, D3–D8) |
| Pipe shaping | Automatic Heat Pipe Bender (2D & 3D, 99% yield) |
| Flattening | Hot Press Machine (±0.05mm tolerance) |
| Leak testing | Helium Leak Testing Machine (1,000 pcs/hr) |
| Performance testing | Automatic Performance Testing Machine (250 pcs/hr) |
Why This Position Is Non-Negotiable
The water filling machine must be positioned after sintering — the copper powder wick must be fully bonded to the tube wall before fluid injection, or the wick structure will be disturbed by the injection process. It must also be positioned before the tube is permanently sealed — once the tube is welded closed, no working fluid correction is possible. Any error in fluid volume at this step is locked in permanently and will manifest as a performance defect or reject at the final testing stage.
Why Choose Cooling-Thermal — Competitive Advantages for B2B Procurement
| Cooling-Thermal | Typical Market Alternative | |
|---|---|---|
| Injection accuracy | ±0.05% / ±0.05g — production grade | Often ±0.1ml or unspecified |
| Pipe range | Ø4–Ø10mm | Often limited range |
| Working fluid types | Water, acetone, other working fluids | Water only common |
| Vacuum integration | Combined degassing + injection available | Separate equipment only |
| Sensor triggering | Auto-sensor for hands-free loading | Manual trigger common |
| Customization | OEM/ODM for non-standard fluids & specs | Standard spec only |
| Sample testing | Available before order | Rarely offered |
| Manufacturer type | Specialist thermal solution manufacturer | General equipment maker |
| After-sales | Dedicated 5-person in-house team | Third-party or limited |
Cooling-Thermal has delivered complete heat pipe production lines — including water injection equipment — to Foxconn (25 lines, 300,000 units daily output), Nidec (20 lines), Furukawa Electric, Cooler Master, and YEH-CHIANG. Our water filling machines are designed to the injection accuracy and reliability standards demanded by these tier-1 thermal solution manufacturers.
Delivery, Installation & After-Sales Support
Factory Acceptance Test (FAT) Before Shipment
Every water filling machine undergoes a full Factory Acceptance Test at our Kunshan facility before dispatch. Injection volume accuracy (±0.05%), pump consistency across repeated cycles, sensor triggering response, and vacuum system performance (for integrated models) are all verified. You are welcome to attend in person or via live video.
On-Site Installation & Commissioning
Our engineers travel to your facility to install the machine, configure injection volume parameters for your specific heat pipe specifications and working fluid type, and run production trials to verify injection accuracy under your actual operating conditions. For integrated degassing-injection models, we also commission the vacuum system and verify pre- and post-injection vacuum levels against specification.
Parameter Setup & Operator Training
We provide hands-on operator training covering injection volume setup and adjustment, working fluid loading procedures, needle maintenance, sensor calibration, vacuum pump maintenance (integrated models), and troubleshooting guidance. All technical documentation is provided in English.
Long-Term Maintenance Support
Our dedicated 5-person in-house maintenance team provides remote support and on-site visits for the equipment's service life. Pump maintenance and recalibration, needle replacement, sensor servicing, and control system updates are all covered. Injection accuracy drift — a common issue with ageing positive displacement pumps — is proactively monitored and addressed through our scheduled maintenance programme.
Export & International Shipping
We handle full export documentation and support FOB, CIF, and DDP shipping terms. Our thermal solution production equipment has been exported to Japan, South Korea, India, Turkey, Vietnam, and Taiwan.
Complete Your Thermal Solution Production Line — Heat Pipe Equipment from a Single-Source Manufacturer
| Equipment Category | Cooling-Thermal Equipment |
|---|---|
| Heat pipe production | Automatic Welder, Shrinking Tube Machine, Pipe Bender, Hot Press Machine, Vacuum Degassing Machine |
| Water / fluid filling | Automatic Water Injection Machine, Degassing & Water Injection Machine, Heat Pipe Water Injection Machine |
| Sintering | Vacuum Sintering Furnace (850–1000°C, 20-ton) |
| VC production | Vapor Chamber Degassing Machine, Continuous Resistance Welding Machine, Copper Column Display Machine |
| Leak testing | Helium Leak Testing Machine (1,000 pcs/hr) |
| Performance testing | Automatic Performance Testing Machine (250 pcs/hr, 6 stations) |
All equipment is available as standalone units or as part of a complete integrated thermal solution production line package. Contact our engineering team to discuss your heat pipe production requirements, capacity targets, and facility layout.
