Miller SubArc Digital Series: Submerged Arc Welding Power Sources
The Miller SubArc Digital series offers advanced power sources for heavy industrial applications, including shipbuilding, heavy fabrication, and pipe fabrication. These systems provide efficient and reliable submerged arc welding (SAW), electroslag welding (ESW), and carbon arc cutting (CAC-A).
Key Features and Applications
The SubArc Digital series is designed for demanding industrial environments, offering three power source options and various control interface and wire feeder motor options. Key features include digital process control, high-reliability SCR power regulation, and electronic communication for improved welding performance and integration into advanced applications.
Industrial Applications:
- Heavy Industrial Fabrication
- Shipyards
- Heavy Fabrication
- Pipe Fabrication
- Pressure Vessels
Welding Processes:
- Submerged Arc Welding (SAW)
- Electroslag Welding (ESW)
- Carbon Arc Cutting and Gouging (CAC-A)
Product Overview
The series includes two DC (CC) power source models and one AC/DC (CA/CC) power source model. These rectifiertransformer welding power sources offer high efficiency and reliability, with advanced digital control electronics for superior welding performance and repeatability.
Models Available:
- SubArc DC (CC) 650/800 Digital
- SubArc DC (CC) 1000/1250 Digital
- SubArc AC/DC (CA/CC) Digital
These units can be paralleled for high-amperage applications like electroslag welding or tandem arc welding.
Ease of Integration and Operation
The SubArc Digital interfaces automatically recognize connected power sources and wire feeders, simplifying setup and operation. The intuitive interface provides operators with the necessary controls for process parameters and output adjustments. Simplified configurations for parallel and tandem operation allow for plug-and-play connectivity.
Modbus Communication:
The system supports Modbus communication for easy integration with automated systems, allowing integrators to remotely adjust settings and operation.
Enhanced Flux Delivery System
The SubArc flux hopper features an automatic flux valve mechanism that ensures consistent flux delivery to the arc. This design prevents actuator jamming from debris and includes a flux level sight for operator monitoring.
Low-Voltage Accessories and Environmental Protection
Accessories are powered by 24 VAC control voltage from the power source. All power sources, interface controls, and wire feeders feature IP-23 protection, offering a high level of protection in harsh environments. Thermal overload protection, line voltage compensation, and Fan-On-Demand™ technology are standard.
Specifications Summary
| Model | Amperage Range / Rated Output | Protection Class (IP) | Input Amps (230V / 460V / 575V @ 60Hz) | Input Amps (380V / 400V / 440V @ 50Hz) | KVA | kW | Open Circuit Voltage (DC) | Dimensions (H x W x D) | Net Weight |
|---|---|---|---|---|---|---|---|---|---|
| SubArc DC (CC) 650 Digital | 50-815 A / 650 A @ 44 V, 100% Duty Cycle | IP23 | 126 / 63 / 50.4 | - | 50 | 34.8 | 75 Vpk | 762 x 584 x 965 mm (30 x 23 x 38 in) | 269 kg (593 lbs) |
| SubArc DC (CC) 800 Digital | 50-815 A / 815 A @ 44 V, 60% Duty Cycle | IP23 | - / 95 / 90 | 3.8* / 1.9* / 1.4* | - | 1.52* | - | 584 x 965 mm (23 x 38 in) | 273 kg (603 lbs) |
| SubArc DC (CC) 1000 Digital | 100-1250 A / 1000 A @ 44 V, 100% Duty Cycle | IP23 | 180 / 90 / 72 | - | 95 | 5.8* | - | 762 x 584 x 965 mm (30 x 23 x 38 in) | 309 kg (682 lbs) |
| SubArc DC (CC) 1250 Digital | 100-1250 A / 1250 A @ 44 V, 60% Duty Cycle | IP23 | - / 135 / 128 | 5.2* / 5.0* / 4.5* | - | - | - | 584 x 965 mm (23 x 38 in) | 309 kg (681 lbs) |
| SubArc AC/DC (CA/CC) 1000 Digital | 300-1250 A / 1000 A @ 44 V, 100% Duty Cycle | IP23 | 122 / 98 / 53 | - | 93 Vpk | 3.0* / 2.37* / 0.95* | 1092 x 711 x 1219 mm (43 x 28 x 48 in) | 538 kg (1187 lbs) | |
| SubArc AC/DC (CA/CC) 1250 Digital | 300-1250 A / 1250 A @ 44 V, 60% Duty Cycle | IP23 | - / 179 / 176 | 3.0* / 3.0* / 2.37* | - | 0.95* | - | 711 x 1219 mm (28 x 48 in) | 572 kg (1260 lbs) |
*While idle. **Open circuit voltages in CV mode are factory preset to a lower value than constant current (CC) mode.
Models SubArc DC (CC) 650 Digital and DC (CC) 1000 Digital are CSA certified for Canada and USA standards. All SubArc DC (CC) Digital models are manufactured and certified to IEC-60974-1, -10 standards.
Wire Feeder Options
Miller offers various wire feeders designed to complement the SubArc Digital series:
- SubArc 100 Digital Wire Feeder: For industrial use with a mounting bracket, designed for automated overlay applications.
- SubArc 400 Digital Wire Feeder: Standard speed, right-angle wire feeder.
Accessories
A comprehensive range of accessories is available to enhance the functionality of the SubArc Digital system, including:
- Cables: For parallel/tandem connections, control, motor extension, and flux hopper extension.
- Torches: Single and dual wire submerged arc torches, with extensions and contact tips.
- Flux Hoppers: Available for SubArc Digital with automatic flux valve.
- Wire Spools and Carriages: For 27 kg (60 lb) wire spools.
- Slide Bases: For smooth and precise movement of welding heads.
- Tractor Packages: For portable submerged arc welding systems.
- Insight Core™: For industrial welding information management.
- ArcAgent™ Auto: For automated welding solutions.
Ordering Information
| Item | Description | Stock Number | Specifications |
|---|---|---|---|
| 1 | Power Source | ||
| SubArc DC 650 Digital | 907622 | 230/460/575 V, 60 Hz | |
| SubArc DC 800 Digital (50 Hz) CE | 907623 | 380/400/440 V, 50 Hz | |
| SubArc DC 1000 Digital | 907624 | 230/460/575 V, 60 Hz | |
| SubArc DC 1250 Digital (50 Hz) CE | 907625 | 380/400/440 V, 50 Hz | |
| SubArc AC/DC Digital | 907620 | 460 V, 60 Hz | |
| SubArc AC/DC 1250 Digital (50 Hz) CE | 907621 | 380/400 V, 50 Hz | |
| 2a | Interface | ||
| SubArc Digital Interface | 300936 | CV, digital control of AC/DC (CA/CC) | |
| 2b | Remote Operator Interface | ||
| SubArc Digital Motor Control | 301425 | Motor control for remote manual digital SubArc | |
| SubArc Digital Remote Manual Control | 301424 | CV, digital control of AC/DC (CA/CC), requires 301425 and Continuum motor cable | |
| 3 | Drive Motors, Extension Cables, and Drive Rolls | ||
| SubArc 100 Digital Wire Feeder, Low Voltage | 300940 | Heavy-duty right-angle drive motor for automated overlay applications | |
| SubArc 400 Digital Wire Feeder, Low Voltage | 300938 | Standard speed right-angle wire feeder | |
| 4a | Single Wire Torches, Straightener, and Tips | ||
| OBT 600 Torch | 043923 | 600 A, 100% duty cycle, air-cooled | |
| OBT 1200 Torch | 043900 | 1200 A, 100% duty cycle, air-cooled | |
| Simple Wire Straightener | 199733 | For single wire torches | |
| 4b | Dual Wire Torches, Straightener, and Tips | ||
| Dual Wire Torch, 1200 A | 301144 | 1200 A, 100% duty cycle | |
| Dual Wire Straightener | 301160 | Single adjustment for dual wire torches | |
| 4c | Overlay Head | ||
| 30-90 mm External Overlay Head | 301167 | 3000 A, 100% duty cycle, water-cooled | |
| 5 | Flux Hopper and Cables | ||
| SubArc Digital Flux Hopper, Low Voltage | 300942 | 11 kg (25 lb) flux capacity | |
| 6 | Spool/Reel Assembly | ||
| Wire Reel | 108008 | For 27 kg (60 lb) wire spool; requires reel support assembly (119438) | |
| 7 | Slider | ||
| Manual Slider | 301137 | 200 mm (7.87 in.) travel adjustment |
For more information on specific configurations and accessories, please refer to the relevant sections of the manual or contact Miller Electric Mfg. Co.
