Signal Fire AI-5 PRO Fiber Fusion Splicer (6 Motors Core Alignment)
Signal Fire AI-5 PRO Fiber Fusion Splicer (6 Motors Core Alignment) has a longer lead time. Please feel free to contact us via chat before placing your order.
📦 For bulk orders, please contact us for a customized quote
Signal Fire – The Best-Selling Budget Splicer
Faster Splicing & Heating
The AI-5 PRO fusion splicing machine uses an upgraded six-motor core alignment system that allows fast 8s splice time and 18s heat time, delivering a 50% increase in work efficiency compared to ordinary machines. It supports about 160 splice/heat cycles per charge, helping engineers save significant working time.
Core Alignment Technology
Equipped with advanced six-motor core alignment and real-time ARC calibration, providing more precise splicing with lower splice loss. Typical splice loss: 0.02 dB (SM), 0.01 dB (MM), 0.04 dB (DS/NZDS). The unique lighting design also ensures precision during night construction or emergency repairs.
3-in-1 Fiber Holder
The versatile fiber holder supports a wider range of fibers including SMF (G.652), MMF (G.651), DSF (G.653), NZ-DSF (G.655), and BIF (G.657). It is suitable for bare fiber, pigtail, jumper, drop cable, and even invisible fiber. Cladding diameter range: 80–150 μm.
Clear LCD & Optimized Battery Life
Features a 5-inch TFT high-resolution color display, providing 320× magnification (X or Y single display) and 160× magnification (X+Y dual display). The built-in 5200 mAh high-capacity lithium battery features an improved charging time ≤ 3.0 hours, supporting about 160 splice/heat cycles.
Intelligent Interaction
Supports Bluetooth 4.2 connection with mobile APP for smart management, enabling data synchronization and remote record viewing. The USB 2.0 interface can connect external LED lights or charge mobile devices, making field work more efficient.
| Fiber alignment | Core / cladding |
| Motor number | Six motors (accurate of fiber alignment: 0.5μm) |
| Splicing time | 8s |
| Heating mode | 18s, can be customized according to the external environment |
| Fiber type | SMF(G.652), MMF(G.651), DSF(G.653), NZ-DSF(G.655), BIF(G.657); suitable for bare fiber, pigtail, drop fiber, patch cord, and invisible fiber |
| The cladding diameter | 80-150 μm |
| Splicing loss | 0.02dB (SM), 0.01dB (MM), 0.04dB (DS/NZDS) |
| Splicing mode | Automatic focusing core alignment, conventional/high precision welding |
| Splicing way | Automatic, semi-automatic |
| Fiber holder | Three in one fixture, no need to change, suitable for SM/MM, multi-core cable, bare fiber, pigtail, jumper, drop cable |
| Battery capacity | 5200mAh, charging time ≤3.0 hours; continuous splicing & heating about 160 cores |
| Magnification | 320x (X or Y axis single display), 160x (X and Y axis dual display) |
| Fiber diameter | Cladding: 80-150μm / Coating: 100-1000μm |
| Cutting length | Coating 250μm below: 8-16mm / Coating 250-1000μm: 16mm |
| Heat shrink tube | 60mm, 50mm, 40mm, 25mm |
| Tensile testing | Standard 2N |
| display | 5 inch TFT color display screen |
| Boot time | 1s, boot can enter the working mode |
| Data is stored | Unlimited, machine storage 1000 groups, cloud export supported |
| Wireless communication | Based on Bluetooth 4.2 protocol, 2.4GHz band, max range 60m |
| Software upgrade | Mobile phone APP Internet update via Bluetooth synchronization |
| Management function | Bind owner authority, remotely view records/loss, set welding limits via APP |
| interface | USB2.0 (Type A) can connect external LED lights and charge mobile devices |
| Return loss | Better than 60 dB |
| Product protection | Waterproof, dustproof and fall proof |
| Power supply | Input AC100-240V 50/60Hz, output DC13.5V/4.8A, real-time power monitoring |
| The work environment | Temp: -15~+50℃, Hum: <95%RH, Alt: 0~5000m, Wind speed: ≤15m/s |



