CAU-280 - Welding machine Steren - Free user manual and instructions
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| Brand | Steren |
| Model | CAU-280 |
| Product Type | Welding Machine |
| Input Voltage | 220-240 V AC, 50/60 Hz |
| Power Consumption | Approximately 280 A (rated) |
| Welding Current Range | 20-280 A |
| Duty Cycle | 60% at 280 A |
| Electrode Diameter | 1.6 - 5.0 mm |
| Cooling System | Fan cooled |
| Weight | Approximately 8.5 kg |
| Dimensions (L x W x H) | 430 x 200 x 310 mm |
| Protection Class | IP21S |
| Insulation Class | H |
| Functions | MMA welding, stick electrode support |
| Adjustable Functions | Hot start, arc force, anti-stick |
| Display | LED current indicator |
| Power Cord Length | 2.5 m |
| Welding Cable Length | 2 m (electrode holder and ground clamp) |
| Accessories Included | Electrode holder, ground clamp, brush, mask |
| Safety Certifications | CE, RoHS |
| Maintenance | Clean dust regularly, check cable connections |
Frequently Asked Questions - CAU-280 Steren
What types of electrodes can I use with the Steren CAU-280?
The CAU-280 accepts electrodes with diameters from 1.6 mm to 5.0 mm, suitable for rutile, basic, and cellulosic types.
What is the maximum welding thickness this machine can handle?
For a single pass, the CAU-280 can weld steel plates up to 10 mm thick with proper preparation. Multiple passes allow thicker materials.
How do I set the welding current correctly?
Refer to the electrode manufacturer's recommendation. As a rule, set current to about 40 A per mm of electrode diameter. Adjust based on material thickness and welding position.
What safety precautions should I take?
Always wear welding helmet with appropriate shade, gloves, and protective clothing. Ensure good ventilation, keep flammable materials away, and disconnect power when not in use.
How do I clean and maintain the welding machine?
Regularly remove dust from internal components using dry compressed air. Check cables for damage and tighten connections. Keep the cooling fan unobstructed.
Does the CAU-280 support non-stop welding (continuous duty)?
No. The duty cycle is 60% at 280 A, meaning you can weld for 6 minutes out of every 10-minute period. Exceeding this may cause overheating and automatic shutdown.
Can I use this machine for TIG welding?
The CAU-280 is primarily designed for MMA (stick) welding. It does not have built-in TIG functionality unless an external TIG torch and gas regulator are used, but it supports scratch-start TIG on DC.
What does the 'Hot Start' feature do?
Hot Start temporarily increases current at arc initiation to prevent electrode sticking, making it easier to start the weld. It is adjustable in some models.
How do I replace a damaged electrode holder?
First, disconnect the machine from power. Loosen the cable clamp at the holder, remove the old holder, attach the new one ensuring good electrical contact, and tighten securely.
Why does the machine stop during welding?
This may be due to overheating (triggered thermal protection) or current overload exceeding the duty cycle. Let it cool for 15 minutes and reduce the welding current or time.
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USER MANUAL CAU-280 Steren
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Product information
Brand : Steren
Model : CAU-280
Category : Welding machine