- Heller Industries provides optimized cycle (average 30s~60s) to achieve super high UPH.
- Heller vacuum assisted reflow applies multi-zones to meet various thermal profile requirements.
- Heller Industries utilizes advanced pumping package with high capacity for fast pump down time.
- Reflow time under vacuum of 15 seconds was able to achieve ＜1% total void area spec.
- Heller adopts high efficient flux collection system to collect the flux and keep tunnel clean.
- On-the-fly maintenance is available.
- Chamber exhaust fore line, ball valve, butterfly valve and dry vacuum pump are heated to 150℃ to eliminate flux condensation.
Specification：
| Model | 1808MK5-VR | 1911MK5-VR | 1912MK5-VR | 1936MK5-VR | 2043MK5-VR |
| Oven Length | 465cm | 590cm | 590cm | 589cm | 680cm |
| Process Gas Options | Air, Nitrogen, Formic Acid, forming gas | Air, Nitrogen, Formic Acid, forming gas | Air, Nitrogen, Formic Acid, forming gas | Air, Nitrogen, Formic Acid, forming gas | Air, Nitrogen, Formic Acid, forming gas |
| Heated Zones | Convection: 7 Top / 7 Bottom IR: 3 Top | Convection: 10Top / 10 Bottom IR: 3 Top | Convection: 11 Top / 11 Bottom IR: 3 Top | Convection: 8Top / 8 Bottom IR: 3 Top | Convection: 10Top / 10 Bottom IR: 3 Top |
| Heated Length (Convection/Total) | 174cm / 273cm | 262cm / 364cm | 290cm / 382cm | 290cm / 382cm | 327cm / 430cm |
| Cool Zones | 2 Top (Bottom Option) | 3 Top (Bottom Option) | 3 Top (Bottom Option) | 3 Top (Bottom Option) | 3 Top (Bottom Option) |
| Max Working Temperature (Convection / IR) | Standard: 350°C / 400°C, Option: 400°C / 480°C | Standard: 350°C / 400°C, Option: 400°C / 480°C | Standard: 350°C / 400°C, Option: 400°C / 480°C | Standard: 350°C / 400°C, Option: 400°C / 480°C | Standard: 350°C / 400°C, Option: 400°C / 480°C |
| Min Vacuum | Standard: 10 Torr Option: < 10 Torr | Standard: 10 Torr Option: < 10 Torr | Standard: 10 Torr Option: < 10 Torr | Standard: 10 Torr Option: < 10 Torr | Standard: 10 Torr Option: < 10 Torr |
| Max Board Size | L500 x W450 x H29（cm） | L500 x W450 x H29（cm） | L350 x W350 x H29（cm） | L350 x W350 x H29（cm） | L500 x W450 x H29（cm） |
| Cleanroom Option | Down to Class 1000 | Down to Class 1000 | Cleanroom Option | Down to Class 1000 | Cleanroom Option |
