HW-R612 Reflow Oven
The HW-R612 (HW-R612E) is a six-zone SMT reflow oven from a China SMT machine manufacturer, designed for reliable, high-quality reflow soldering in medium to large PCB assembly operations. Hot air melts the solder paste on PCB pads, completing the electrical connection between components and the board. It features six upper and six lower heating zones over a 2100 mm heating length, a 350 mm mesh belt width, temperature control precision of ±1-2°C, and board temperature deviation of ±2-3°C. Powered by RKC temperature controllers, per-zone thermocouples and SSR solid state relays, the machine keeps thermal profiles stable across long production runs.
Key Features
- Swedish nickel-chromium heating wire with peak radiation wavelength of 4 um and curved reflectors, combined with forced hot-air circulation, heats PCB and components evenly and eliminates the shadow effect
- High-density insulation rock wool (120 kg/m³) in a dedicated high-temperature protection system supports both leaded and lead-free soldering
- Taiwan Sanyue long-shaft high-temperature air motors with W-shaped heating tube design are modular, noiseless, vibration-free and easy to service
- Porous galvanized plates above and below the furnace distribute air evenly so heat reaches the PCB uniformly; the upper furnace body opens fully for chamber cleaning
- RKC temperature controllers with PID intelligent computation and fuzzy control suppress overshoot and respond quickly to external heat load changes
- Per-zone thermocouples sense each zone's temperature quickly and transmit and compensate for zone temperature balance in real time
- ANV SSR solid state relays with dedicated heat sinks provide contactless, reliable output and long service life; lengthwise temperature distribution complies with IPC standards
- Smooth transport: variable-speed motor with 1:60 worm gear reducer, independent rollers with flat support and stainless steel Z-shaped mesh belt; conveyor speed 0-600 mm/min stepless electronic adjustment
- Delayed shutdown protection cools the machine evenly after stopping, preventing conveyor deformation from uneven cooling
Technical Specifications
| Heating Zones | Upper 6 / Lower 6 |
| PCB Lateral Deviation | ±2°C |
| Heating Zone Length | 2100 mm |
| Max PCB Width | Mesh belt transverse width 350 mm |
| Heating Element | Vacuum ultra-long-life nickel-chromium heater |
| Max Component Height | 40 mm |
| Temperature Control Precision | ±1-2°C |
| Conveyor Height | 880±20 mm |
| Heating Method | Turbo-charged full hot-air zone-independent small-circulation forced heating; fast warm-up, energy saving |
| Conveyor Direction | Left to right (right to left optional) |
| Temperature Control Range | Room temperature - 350°C |
| Temperature Control Method | Temperature controller - SSR drive |
| Board Temperature Deviation | ±2-3°C |
| Abnormal Alarm | Over-temperature alarm |
| Whole-machine Control | Operation panel keys, microcomputer intelligent instrument PID closed-loop control / touch screen control |
| Conveying Method | Stainless steel Z-shaped mesh belt |
| Warm-up Time | Within 20 min |
| Conveyor Speed | 0-600 mm/min electronic speed control |
| Cooling Zones | 2 |
| Power Supply | AC 380V 50/60Hz |
| Cooling Method | Constant-flow forced air cooling |
| Startup / Normal Power | 24 kW / 3.5 kW |
| Dimensions | L3520xW700xH1350 mm |
| Weight | 480 kg |
| Part | Description | Qty | Brand |
| Temperature Controller | Temperature control core | 12 | RKC |
| Thermocouple | Real-time monitoring of zone temperature | 12 | Taiwan Fanda |
| Solid State Relay (SSR) | Contactless output with heat sink base for long life | 12 | ANV |
| High-temperature Long-shaft Air Motor | Stable air flow, resistant to 400°C | 6 | Taiwan Sanyue |
| Drive Motor | Low noise, smooth transmission, with 1:150 gearbox | 1 set | Taili |
| Speed Controller | Electronic speed control of conveyor | 1 | Taili |
| AC Contactor | Controls whole machine on/off | 1 set | Chint |
| Air Switch | Overvoltage, overcurrent and overload protection | 1 set | Chint |
| Relay | MY2, MY4 intermediate and time relays for control circuits | 1 set | OMRON |
| Tri-color Light | Explosion-proof and heat resistant | 1 | Taibang |
| Cooling Fan | 1238/1125 ball bearing, long life, noiseless | 1 set | LUNXN Lianxiang |
| Switches and Buttons | Control operation | 1 set | Schneider |
| Shell Structure | 2.0 cold-rolled plate, CNC processed | 1 | In-house CNC |
| Surface Coating | Anti-static coating, 200°C high-temperature curing, computer gray with sky blue sides | 1 | In-house |
| Insulation Rock Wool | Multi-layer insulation for power saving, high density 120 kg/m³ | 1 | USA Sisal |
| Transmission and Machined Parts | Advanced domestic technology and process | 1 set | In-house R and D |
| Heating Wire | Swedish imported nickel-chromium wire, high-temperature ceramic insulation | 1 set | Switzerland |
| Sliding Casters and Feet | M16 adjustable galvanized feet for height and balance; casters for moving | 1 set | Taiwan Desheng |
SMT Industry News
AI server boards and high-end computing PCBs are driving strong demand for SMT capacity and high-precision placement equipment, while smart factory and Industry 4.0 integration - MES connectivity, real-time process data and autonomous logistics - spreads across SMT production lines. Both trends raise the bar for the reflow soldering stage, where temperature uniformity and fast response to heat-load changes decide solder joint quality on dense, high-value boards. The HW-R612 answers with six upper and six lower heating zones, RKC controllers with PID fuzzy control, per-zone thermocouples and IPC-standard lengthwise temperature distribution, giving high-end PCB assembly the thermal stability production planning now expects.
Applications
The HW-R612 six-zone reflow oven is positioned for medium to large SMT production lines in consumer electronics, LED lighting, communications and industrial control PCB assembly. Its upper 6 / lower 6 heating zones, 350 mm mesh belt width and two cooling zones deliver steady in-line throughput between the placement machines and AOI inspection or board handling equipment. For electronics manufacturers soldering mixed CHIP and IC boards with leaded or lead-free processes, this reflow soldering machine from a China SMT machine manufacturer provides IPC-standard temperature distribution and reliable, low-maintenance operation for years of production.
Foreign Trade Sales: Mr. Sun
Phone · WhatsApp · WeChat: +86 18210740377
Email: zghwgc@gmail.com
Website: www.smthw.com
Factory Address: Building 21, Junding Science & Technology Park, Shiyin Village, Luquan District, Shijiazhuang, Hebei, China
