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SF-800L-N₂
SHENGDIAN
Overview & Key Features:
Control System: Adopts an industrial PC + Siemens intelligent control system with high-precision modular temperature control (±1°C). Supports offline operation in case of accidental PC freeze without affecting production, ensuring system stability.
UI & OS: Windows 10 operating system with powerful functions and user-friendly interface; features a one-key system restore function.
Top Hood Lifting: Dual electric actuator lifting mechanism for the top hood, ensuring safety, stability, and reliability.
Conveyor Belt Tensioning: Equipped with a mesh belt tensioning device for smooth, jitter-free, and deformation-free transport.
Synchronous Rail Transport: Synchronous guide rail mechanism (can connect online with fully automatic pick-and-place machines and board unloaders), ensuring high width-adjustment precision, long service life, and anti-torsion capability.
Lubrication: Manual control lubrication system; oil volume and timing are manually controlled to lubricate the conveyor chain.
PID Heating: All heating zones are PID controlled by computer (zones can be turned on individually or sequentially to reduce starting power; heat-up time is 10–15 minutes).
Closed-Loop Speed Control: Full closed-loop computer control for mesh/chain conveyance, accommodating simultaneous production of different PCB types.
Alarm System: Audible and visual fault alarm system with LED lights.
Power Protection: Built-in UPS and automatic delayed shutdown system protect PCBs and the reflow oven from damage during power outages or overheating.
Heating Method: Utilizes US HELLER world-leading hot air circulation technology with high-efficiency pressurized ducts, significantly increasing circulating hot air flow. Offers rapid temperature rise and high thermal compensation efficiency for high-temperature soldering and curing.
Temperature Monitoring: Independent temperature sensors in each zone provide real-time monitoring and balance compensation.
Data & Profile Management: Password-protected OS prevents unauthorized parameter changes. Operation logs enable traceability of parameter modifications. Stores existing temperature/speed settings and profile data with printing support.
Integrated Interface: Integrated control window for convenient computer startup/shutdown, profile testing, printing, and data transmission. Built-in 3-channel online temperature profiling system for real-time PCB temperature checking (no external profiler required).
Cooling System: International-standard rapid cooling system using magnified, concentrated, high-efficiency cooling; cooling rates reach 4–8°C/sec with easy management, ensuring optimal solder joint crystallization.
Rosin Recovery System: Installed at the inlet, preheating, and soak zones. Exhaust gas from reflow and cooling zones is directed through dedicated piping, filtered, and discharged. Simple and flexible maintenance via periodic filter cleaning.
Advanced Air Circulation: Special pressurized air structure and shaped heating elements ensure zero noise/vibration and extremely high heat exchange efficiency. Minimal temperature difference (Δt) between BGA bottom and PCB meets strict lead-free process demands for high-difficulty soldering.
No. | Parameter Item | Specifications |
1 | Dimensions | 5300 × 1500 × 1450 mm |
2 | Body Color | 731 Sky White |
3 | Weight | 2000 kg |
4 | Heating Zones | Top 8 / Bottom 8 (16 total forced-air pressurized zones) |
5 | Heating Zone Length | 3960 mm |
No. | Parameter Item | Specifications |
1 | Total Power | 75 kW |
2 | Startup Power | 68 kW |
3 | Steady State Power | Approx. 8–12 kW |
4 | Heat-up Time (from room temp) | Approx. 20 min |
5 | Thermal Stabilization Time | Approx. 2 min |
6 | Heating Element | Spiral 2-in-1 plug-in drawer design; imported high-quality heating element set with fast heat exchange, long lifespan, and high thermal efficiency |
7 | Inverters | 3 precision inverters control hot air frequency; wind speed is adjustable via frequency tuning to enhance product quality |
8 | Hot Air Blower Motors | Taiwan Samyue high-temperature motors (3-phase AC 220/380V, 125W, 2800 RPM) |
9 | Pressurized Air Flow | Turbocharged dual-outlet 3-layer air equalization system boosts wind speed and pressure for stable temperature and better soldering performance |
10 | Hot Air Method | Advanced hot air circulation technology; turbocharged design ensures uniform and stable air flow with high thermal efficiency. Identical temperature profile across all PCBs regardless of throughput, providing high heating repeatability suitable for narrow lead-free process windows |
No. | Parameter Item | Specifications |
1 | Mesh Belt Width | Stainless Steel 316#, 550 mm width |
2 | Transport Structure | Dual synchronous modes: Mesh belt & Rail chain transport |
3 | Transport Direction | Left to Right (Right to Left customizable) |
4 | Chain Transport Height | 900 ± 20 mm |
5 | Guide Rail | Ultra-small, hardened, specially treated, anti-torsion, low heat absorption |
6 | Chain Expansion | Approx. 10 mm |
7 | Chain Lubrication System | Dual-cup automatic drip lubrication system |
8 | Chain Tensioner | Auto-tensioning wheel |
9 | Mesh Belt Tensioner | Auto-tensioning |
10 | Conveyor Inverter | 0.2 kW ENC precision control, smooth and jitter-free transport |
11 | Conveyor Speed Control | RS485 industrial control |
No. | Cooling & Flux Exhaust System | Specifications |
1 | Cooling Configuration | Two independent top/bottom pressurized air cooling zones (top zone includes water cooling system, both equipped with condensers for fast cooling); bottom zone features air cooling + 1 external axial fan |
2 | Cooling Zone Length | 800 mm (pressurized air) + external axial fan |
3 | Exhaust Volume Requirement | 500–1000 m³/h (provided by customer) |
4 | Flux Recovery System | Inter-zone flux exhaust passes through filter mesh and discharges via dual-row outlets |
5 | Recovery Collection Box | Front & rear collection box systems equipped with motor-driven flux extraction (built-in filter mesh) |
No. | Control System | Specifications |
1 | Industrial PC | Dedicated MINI Industrial PC + Dedicated CPU + Solid State Drive (SSD) |
2 | Operating System | Windows 7 / 10 OS Interface |
3 | Monitor | AOC 19-inch (19:1 ratio) |
4 | PLC | Siemens CPU + Precision Temperature Modules + I/O Output Modules |
5 | Temperature Control | Independent PID + Pulse + SSR control per heating zone via temperature modules |
6 | Alarm System | Red light for over-temperature, buzzer alarm, yellow light for low-temp warning, red light for normal temp |
7 | Operating Software | Shengfeng Reflow Oven Control Software V8.8.2002 |
8 | Temperature Profiling | 3-channel precision curve measurement, profile analysis, and printing |
9 | System Parameters | Settable, editable, and storable parameters (temperature & speed) |
10 | Temp Setting Range | Room Temperature to 350°C |
11 | Conveyor Speed Setting | 0 – 2.2 m/min |
12 | Hot Air Frequency Setting | 0 – 50 Hz |
13 | Operation Interface | Password protected |
14 | Nitrogen System | Equipped with N₂ sealing structure, N₂ piping, and flow meter |
15 | Oxygen Monitoring | Equipped with Oxygen Concentration Analyzer |
16 | N₂ Consumption | 45–70 m³/h (3000–10000 PPM) for 550 mm mesh belt width |
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