MISA Manufacturing | Wuxi MISA Welding Equipment Co., Ltd.
TIG Deep Penetration Welding Machine
DP-TIG deep penetration welding concentrates a high-energy tungsten inert gas arc through electromagnetic arc compression, creating a stable keyhole effect for high-speed, single-pass welding of medium and thick plate.
- 304 Stainless
- ≤14mm
- Titanium Alloy
- ≤16mm
- Speed Gain
- 3-8×
- Pass Rate
- >95%
Technology overview
High-energy DP-TIG welding for clean, deep, single-pass joints.
DP-TIG uses a special high-power welding torch and efficient electromagnetic arc compression to form a keyhole effect. The result is deep penetration, stable arc control, attractive weld coverage, and reduced sensitivity to porosity in demanding industrial applications.
Exceptional Penetration
Single-pass penetration up to 14mm for 304 stainless steel plate and up to 16mm for titanium alloy plate, without groove preparation.
High Welding Efficiency
Welding speed can reach 3-8 times that of traditional arc welding, improving production throughput for medium-thickness structures.
Consistent Weld Quality
Single-side welding with double-side formation produces flat, attractive welds with low deformation and a first-pass qualification rate above 95%.
Lower Operating Cost
Eliminates multi-layer and multi-pass filling in many applications, reducing filler metal, shielding gas, edge preparation, and labor time.
Simplified Process Control
Compared with plasma welding, DP-TIG does not require plasma gas control, making the arc easier to manage and more reliable in production.
Procurement-Ready Package
MISA Manufacturing supplies the welding power source, arc pressure tracking, cooling, control system, and dedicated high-power torch as an integrated DP-TIG system.
Explore System BuildSystem components
Standard DP-TIG machine configuration with automation-ready options.
The machine is configured around stable deep penetration welding, production repeatability, and easy integration into longitudinal seam, circumferential seam, and automated welding cells.
Included and optional equipment
Standard configuration
- DP-TIG welding machine main unit
- Arc pressure tracking system
- Welding power source, cooling water tank, and control system
- Dedicated high-power DP-TIG welding torch
Optional accessories
- Automatic wire feeder
- Automatic welding seam tracking system
- Automated welding carriage or production equipment
- Welding image monitoring system
Typical process parameters
Austenitic stainless steel reference data.
DP-TIG demonstrates strong process adaptability for medium and thick plate. Final parameters depend on material grade, joint design, shielding conditions, fixture rigidity, and production acceptance criteria.
| Plate Thickness | Welding Current | Travel Speed | Process Intent |
|---|---|---|---|
| 3mm | 270A | 500mm/min | High-speed deep fusion with clean bead formation |
| 8mm | 480A | 280mm/min | Stable keyhole welding for medium plate |
| 12mm | 520A | 220mm/min | Single-pass penetration to reduce filling work |
Filler metal consumption can be reduced dramatically in suitable applications and may be as low as 5% of traditional TIG welding consumption.
Industrial applications
Built for high-quality, high-efficiency deep penetration welding.
MISA DP-TIG systems are especially suitable for heavy industrial sectors where weld quality, penetration depth, reduced preparation, and production efficiency are critical.
Shipbuilding
Long seams, plate structures, and high-throughput fabrication with reduced distortion.
Pressure Vessels
Single-side welding with double-side formation for demanding vessel production routes.
Energy Equipment
Reliable penetration and productivity for power, thermal, and renewable energy components.
Chemical Processing
Clean weld appearance, low porosity sensitivity, and controlled deformation for process equipment.
Technical quotation pathway
Send your material, thickness, joint length, and production target.
MISA Manufacturing can evaluate your welding task and recommend a DP-TIG configuration, automation accessories, process route, and production integration plan.
Process simplification
Reduce beveling, filling passes, filler metal, shielding gas, and preparation time.
Production efficiency
Use high travel speeds and stable keyhole welding to improve throughput.
Quality-focused output
Achieve flat, clean welds with low deformation and strong first-pass qualification performance.