Overview
The ProStar PRS44-3545-15 MIG liner is an OEM-quality consumable designed for gas metal arc welding (GMAW) systems using Tweco-style MIG gun platforms. With a 15-foot length and support for 0.035″ to 0.045″ wire diameters, this liner delivers reliable arc transfer and minimal spatter control. It’s engineered as an interchangeable replacement for Tweco® brand liners, making it ideal for maintenance departments and production facilities requiring drop-in compatibility and cost-effective consumable replenishment.
Key Features
- Tweco-Style Compatibility: Interchangeable with Tweco & Tweco Weldskill platforms
- Multi-Gun Support: Compatible with Tweco style MIG guns 300A – 450A including Classic, Eliminator®, Weldskill®, Spray Master®, PulseMaster™, Smoke Master® & Velocity®
- Wire Range: Supports 0.035 in – 0.045 in wire diameter
- Professional Grade: OEM quality Tweco® style consumables with product marking for easy identification
- Extended Length: 15 ft length for standard industrial welding gun setups
Technical Specifications
- Wire Diameter Range: 0.035″ – 0.045″
- Liner Length: 15 feet
- Gun Amperage Rating: 300A – 450A
- Style: Tweco-compatible wire conduit
- Weight: 1.05 lb
- Application: Semi-automatic GMAW (MIG)
- Material Compatibility: Steel, stainless, aluminum (standard MIG wire)
Typical Applications
- Maintenance and consumable replacement for production welding departments
- OEM equipment users transitioning to equivalent Tweco-style liners
- Job shop and contract welding operations managing multi-gun welding stations
- Fabrication facilities requiring consistent arc quality and wire feed reliability
- Industrial repair and rework applications in automotive, machinery, and structural steel sectors
Compatibility & Replacements
Compatible With
- ProStar 280 and 400 Amp MIG Guns
- Tweco Classic, Eliminator®, Weldskill®, Spray Master®, PulseMaster™, Smoke Master®, Velocity®
- Tweco No. 3 and No. 4 gun platforms
- Standard semi-automatic GMAW welding systems
Replaces / Drop-In Replacement For
- Tweco® brand MIG liners (0.035″–0.045″, 15′ length)
- OEM equivalent consumables for 300A–450A MIG gun systems
- Verify exact model cross-reference with your gun manufacturer or system integrator before ordering
Works With
- GMAW semi-automatic welding power supplies
- Wire feed drive systems (spool-gun and push-pull compatible)
- Shielding gas delivery systems (CO₂, Argon, mixed gas)
- Standard MIG gun consumables and contact tips (compatible formats)
