MasterWeld® MWF-400DD Dual-Tank Submerged Arc Welding Flux Oven – 400kg, 380V, 370°C
British-Made Industrial SAW Flux Drying & Baking Oven | 400kg Total Capacity | Dual-Tank Configuration | Independent Digital Temperature Controllers | Maximum Temperature 370°C | 380V AC
The MasterWeld® MWF-400DD Dual-Tank Submerged Arc Welding Flux Oven is a British-manufactured, heavy-duty industrial welding flux drying and baking oven, combining a substantial 400kg total flux capacity with two independently adjustable digital temperature controllers.
Designed for demanding Submerged Arc Welding (SAW) applications, the MWF-400DD provides a high-capacity solution for the controlled drying, baking and conditioning of granular welding flux used in industrial fabrication and manufacturing environments.
With its substantial 400kg capacity, the MWF-400DD is particularly suitable for heavy engineering facilities, structural steel manufacturers, pressure vessel fabricators and large-scale industrial welding operations requiring the conditioning of significant quantities of submerged arc welding flux.
The oven features a dual-tank configuration, providing two flux chambers within a single stationary industrial unit.
Unlike the MWF-400DT model, which features a single digital temperature controller for both tanks, the MWF-400DD incorporates two digital temperature controllers, allowing operators to adjust the temperature of each tank separately.
This independent control arrangement provides additional flexibility where different flux batches require different conditioning temperatures or where separate drying and baking procedures need to be carried out.
Each digital temperature controller allows operators to select and monitor the required operating temperature, with a maximum temperature of 370°C.
With a substantial 13.2kW heating output, the MWF-400DD provides heating capacity for demanding industrial welding flux drying and baking applications.
The MWF-400DD operates on a 380V AC electrical supply and is designed for installation in industrial facilities with a compatible electrical system.
Manufactured in Britain, the MasterWeld® MWF-400DD forms part of our comprehensive range of professional submerged arc welding flux drying, baking and conditioning equipment.
Key Features & Benefits
- 400kg Total Welding Flux Capacity – High-capacity oven for large-scale industrial submerged arc welding operations.
- Dual-Tank Configuration – Two flux chambers within one stationary industrial oven.
- Independent Digital Temperature Controllers – Separate temperature adjustment for each tank.
- Maximum Temperature of 370°C – Suitable for a range of welding flux drying and baking procedures, subject to manufacturer recommendations.
- 13.2kW Heating Output – Provides substantial heating capacity for industrial flux conditioning.
- Made in Britain – British-manufactured welding flux oven for professional industrial applications.
- 380V AC Electrical Supply – Designed for compatible industrial electrical installations.
- Flexible Flux Conditioning – Allows separate temperature settings for different flux batches or conditioning requirements.
- Heavy-Duty Stationary Design – Intended for dedicated flux drying and baking areas in industrial workshops.
- MasterWeld® Product Range – Part of our British-made submerged arc welding flux oven range, with capacities from 80kg to 400kg.
Technical Specifications
| Specification |
Details |
| Brand |
MasterWeld® |
| Model |
MWF-400DD |
| Product Type |
Dual-Tank Submerged Arc Welding Flux Drying & Baking Oven |
| Total Flux Capacity |
400kg |
| Tank Configuration |
Dual Tank |
| Temperature Control |
Digital |
| Controller Configuration |
Two Independent Digital Controllers |
| Operating Temperature |
Ambient to 370°C |
| Maximum Temperature |
370°C |
| Supply Voltage |
380V AC |
| Power Rating |
13.2kW (13200W) |
| External Dimensions (W × D × H) |
1560 × 790 × 1420mm |
| Country of Manufacture |
United Kingdom |
Dual-Tank Flux Drying & Baking Configuration
The MasterWeld® MWF-400DD features a dual-tank configuration, providing two flux chambers within a single stationary industrial oven.
With a combined 400kg capacity, the MWF-400DD is suitable for fabrication workshops and industrial welding operations requiring the conditioning of large quantities of submerged arc welding flux.
The dual-tank arrangement allows operators to manage flux quantities across two separate chambers, making the oven particularly suitable for professional industrial welding environments.
Independent Digital Temperature Control
One of the defining features of the MasterWeld® MWF-400DD is its dual-controller design.
Unlike the MWF-400DT, which uses a single digital temperature controller for both tanks, the MWF-400DD features two independent digital temperature controllers.
This allows operators to select different temperature settings for the two flux chambers, providing additional flexibility when conditioning different flux batches or following different flux drying and baking procedures.
For example, one tank may be used for a flux batch requiring a particular drying temperature while the second tank is set to a different temperature, provided both processes comply with the relevant flux manufacturer's recommendations.
With a maximum operating temperature of 370°C, each tank can be adjusted to suit the required conditioning procedure within the oven's operating range.
Why Is Submerged Arc Welding Flux Drying Important?
In submerged arc welding, granular flux plays an important role in protecting the welding process and influencing the characteristics of the finished weld.
Depending on the flux type, exposure to atmospheric moisture during storage or handling may affect its condition and contribute to welding quality problems.
Where recommended by the flux manufacturer, controlled drying or re-baking can help restore welding flux to the required condition before use.
The MWF-400DD provides dedicated heating chambers for carrying out these procedures in accordance with the appropriate flux manufacturer's recommendations.
Correct flux handling and conditioning can be particularly important in industrial welding applications where welding procedures specify strict consumable storage and moisture control requirements.
Digital Temperature Control up to 370°C
The MWF-400DD incorporates two digital temperature controllers, allowing operators to select and monitor the required temperature for each flux tank.
With an operating temperature range from ambient up to 370°C, the oven can accommodate a variety of flux conditioning procedures, subject to the flux manufacturer's specified temperatures and heating cycles.
The independent digital controllers provide additional operational flexibility for professional welding operations where different flux conditioning requirements may apply.
Electrical Supply Requirements
The MasterWeld® MWF-400DD is designed for operation on a 380V AC electrical supply and has a 13.2kW power rating.
Before installation, customers should ensure that a compatible electrical supply and suitably rated connection are available. Electrical installation should be carried out in accordance with the manufacturer's requirements and applicable electrical regulations.
Typical Applications
- Submerged Arc Welding (SAW) operations
- Industrial welding flux drying and re-baking
- Heavy engineering and fabrication workshops
- Structural steel fabrication
- Pressure vessel and boiler manufacturing
- Pipe and tubular fabrication
- Shipbuilding and offshore fabrication
- Automated submerged arc welding production
- Welding operations handling different flux batches requiring separate temperature settings
- Large-scale fabrication facilities requiring high-capacity flux conditioning
Why Choose the MasterWeld® MWF-400DD?
The MWF-400DD combines a substantial 400kg total flux capacity with a dual-tank configuration and independent digital temperature control, providing a flexible, high-capacity solution for industrial submerged arc welding flux drying and baking.
Its dual-controller design is particularly suitable for welding operations where different flux batches require different temperature settings.
Compared with the MasterWeld® MWF-200D, which offers a 200kg single-tank capacity, the MWF-400DD provides double the total flux capacity.
For applications where both tanks can operate under a common temperature control arrangement, the MasterWeld® MWF-400DT offers an alternative 400kg dual-tank model with a single digital controller.
British-Made MasterWeld® Welding Flux Ovens
Manufactured in Britain, the MasterWeld® MWF-400DD forms part of our professional range of submerged arc welding flux ovens, with capacities ranging from 80kg to 400kg.
MasterWeld® welding flux ovens provide practical solutions for controlled flux drying, baking and conditioning in professional submerged arc welding environments.
Our wider MasterWeld® welding oven range also includes portable welding electrode quivers, stationary welding rod ovens and specialist welding consumable storage equipment.
Download the MasterWeld® Submerged Arc Welding Flux Oven Brochure for further product information and technical specifications.
Important: Welding flux drying, re-baking and holding temperatures must always follow the flux manufacturer's recommendations and applicable welding procedures. Not all submerged arc welding fluxes require or permit the same conditioning temperatures or treatment cycles.