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he Defender 400 welding screens are the workhorse of our welding curtains and frames range. These strong, professional welding frames offer full mobility as they come complete with 4 castors, 2 of which are lockable. The Defender 400 welding screens use the 470mm x 1600mm PVC welding strips, these are attached to the welding screens' header rail using the metal curtain rings supplied. Each individual PVC strip is fastened by plastic “click studs” to its neighbouring strip, therefore ensuring a perfect seal and maximising safety for all personnel. These welding frames are supplied in easy to assemble kit form, full assembly instructions are supplied.
Replacement / extra PVC strips are available and are suitable for attaching to the majority of welding frames.
Specifications:
Outer frame dimensions: 1960mm (6ft 4″) W x 1900mm (6ft 3″) H
Frame type: 32.9mm diameter steel tube frame
Strip curtain dimensions: 1960mm (6ft 4″) W x 1600mm (5ft 3″) H
Curtain from floor: 320mm
PVC strip quantity: 1 pack of 5 PVC strips
Strip size: 470mm W x 1580mm H
Strip thickness: 0.4mm
Stock colour: Amber
Outer carton: 1720mm L x 380mm D x 100mm H
Specifications
General
SKU
S03/DEF400
Weight (kg)
31
Manufacturer
Defender Welding Screens
MPN
S03/DEF400
Frequently Asked Questions
What is the correct colour for a welding curtain?
Red, orange, green, or bronze tints are acceptable so long as luminous transmittance meets BS EN ISO 25980 limits; choose a tint that maintains visibility while shielding the arc.
Are transparent welding curtains safe for adjacent workers?
Provided they are certified to BS EN ISO 25980, they block harmful radiation while allowing supervision and daylight.
Can welding curtains be used outdoors?
They can, but sunlight accelerates PVC ageing; inspect regularly and replace curtains that become brittle, hazy, or cracked.
How should welding curtains be cleaned and maintained?
Wash with warm water and mild detergent; avoid solvents and check weekly for burns, tears, or hardened areas.
Do all welding processes require curtain shielding?
Arc processes (MMA, MIG or MAG, TIG, plasma) do; oxy-fuel processes emit little UV and normally do not require arc curtains.
What temperature rating do I need for a welding blanket?
For light grinding sparks, choose approximately 260 degrees Celsius, for MIG or TIG spatter, approximately 550 degrees Celsius, and for heavy stick or gouging work, greater than or equal to 1,000 degrees Celsius.
Are welding blankets safe to use vertically?
Only if the manufacturer states vertical use; molten metal can stick or burn through blankets not designed for hanging.
What is a welding curtain?
A welding curtain is a protective barrier made from fire-resistant materials, designed to shield workers and bystanders from harmful UV radiation, sparks, and heat generated during welding processes. It enhances safety in workshops and construction sites.
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