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Ten upper and ten lower convection heating zones give the Heller 1936 MK7 a 3.6-metre heated section for developing the required reflow profile. Its 12-inch heater modules provide a different thermal layout from Heller models built around shorter modules.
The oven accommodates PCB widths up to approximately 559 mm. Three upper cooling zones are standard, with lower cooling available as an option. Air and nitrogen versions allow the process atmosphere to be selected around the assembly requirements.
The MK7 platform also incorporates thermal monitoring, energy management and flux-management features. For production planning, board spacing and the validated thermal profile determine achievable output.
Heller 1936 MK7 Core Technical Specifications
| Tawhā | Whakatakotoranga |
|---|---|
| Tauira | 1936 MK7 |
| Nga Rohe Whakawera | 10 upper / 10 lower |
| Heated Length | 3,600 mm |
| Heater Module Length | 12 inches |
| Standard Cooling Zones | 3 upper; lower cooling optional |
| Standard Maximum Operating Temperature | 350°C |
| Optional Maximum Operating Temperature | 400°C |
| Maximum PCB Width | Approximately 559 mm |
| Published Maximum Conveyor Speed | 1.88 m/min |
| Overall Oven Length | Approximately 5,900 mm |
| Atmosphere Options | Air / nitrogen |
We identify the atmosphere, cooling arrangement and conveyor configuration for the individual machine in our quotation.
