Precision Tube Welding & Assembly Services for Industrial Structures
Engineering-driven tube welding for production-ready assemblies with controlled distortion, measured tolerances, and traceable documentation. We combine TIG, MIG, orbital, and robotic welding processes with fixture-based repeatability to deliver consistent results from prototype through volume production.
Tube Welding & Assembly Services
We deliver production-ready welds on tube frames, manifolds, and assemblies with engineered fixtures and documented control plans. Every inquiry receives an engineering DFM review, and we respond with technical feedback and pricing within 48 hours.
Our integrated workflow connects laser cutting and tube bending with welding, machining, and surface finishing—so you get complete assemblies with fewer handoffs and shorter lead times.
Why Partner with Us
- Thin-wall capability: TIG and orbital processes with precise heat control for tubes down to 0.5 mm wall (material-dependent)
- Fixture-controlled repeatability: Engineered jigs and balanced weld sequences minimize distortion across production runs
- Integrated capabilities: In-house cutting, bending, machining, and finishing eliminate coordination complexity
- Traceable quality: ISO 9001 processes with FAI, in-process checks, and final inspection records
Production Image: TIG welding thin-wall stainless tube assembly in fixture
Welding Processes: TIG, MIG, Orbital, Spot & Robotic
We select the right process based on material, wall thickness, joint geometry, cosmetic requirements, and production volume. All processes are qualified per WPS/PQR and aligned to AWS/ASME/ISO standards.
TIG / GTAW Welding
Precision tungsten inert gas welding for thin-wall tubes, sanitary applications, and high-cosmetic stainless and aluminum work. Offers superior heat control, minimal HAZ, and clean bead appearance.
Typical use: Medical frames, food-grade manifolds, yacht handrails, thin-wall structures (0.5–3.0 mm wall)
MIG / GMAW Welding (Including Pulsed)
Metal inert gas welding with higher deposition rates for structural tube frames and carbon steel assemblies. Pulsed MIG enables aluminum welding with reduced spatter and better control.
Typical use: Robotic chassis, AGV frames, automotive roll cages, equipment guards (wall ≥1.5 mm)
Orbital Tube Welding
Automated rotational welding for repeatable tube-to-tube and tube-to-fitting joints. Delivers consistent penetration and cosmetics on sanitary, pharmaceutical, and thin-wall applications.
Typical use: Sanitary piping, thin-wall exhaust manifolds, high-volume tube assemblies requiring GR&R validation
Spot / Resistance / Projection Welding
High-speed welding for sheet-to-tube and bracket joints on enclosures, racks, and guards. Ideal for locating tabs, nut projections, and attachment points where cosmetic appearance is secondary.
Typical use: Electrical enclosures, server racks, mounting brackets, equipment housings
Robotic Welding Cells
Multi-axis robotic systems with positioners for consistent bead geometry, takt-aligned throughput, and reduced labor variation. Programs are stored for repeat production with traceable parameter logs.
Typical use: Medium to high-volume tube frame production (AGV chassis, machine guards, structural assemblies)
Materials & Profiles: Stainless, Aluminum, Steel
Materials
- Stainless Steel 304/316/17-4: Corrosion resistance, sanitary applications, cosmetic finishing
- Aluminum 5052/6061: Lightweight structures; pulsed MIG or TIG with proper surface prep
- Carbon Steel (HSS/HRS/CRS): Structural frames, automotive applications, cost-effective production
Tube Profiles
- Round tube and pipe (OD × wall or nominal + Schedule)
- Square and rectangular tube
- Tube-to-plate and tube-to-solid joints
Terminology: We work from your drawing language—whether "tube" (OD-based) or "pipe" (nominal size). Provide seam type (ERW/DOM) for optimal WPS selection.
Surface & Cosmetic Requirements
Define A/B faces (show surface vs. hidden surface) on your drawings to help us plan weld sequences and post-weld dressing. We offer bead grinding, blending, and polishing for cosmetic surfaces.
Joint Types
- Butt joints: Full penetration or partial penetration per WPS
- Fillet joints: Tube-to-plate, tube-to-tube intersections
- Lap joints: Sleeve connections, reinforcement plates
- Fishmouth/cope welds: Tube intersections with laser-cut bevels for weld-ready fit
All joint designs are reviewed for access, gap control, and penetration requirements during DFM.
Capacity, Quality Assurance & Tolerances
Fixture Design & Distortion Control
We use engineered fixtures with clamp-and-datum strategies to locate parts repeatably and minimize distortion. Balanced weld sequences, controlled heat input, and copper backing or chill bars help maintain dimensional stability on thin-wall assemblies.
Post-weld straightening is available when specified. Critical dimensions are verified at FAI, in-process, and final inspection.
Typical Assembly Tolerances
Welded tube assemblies typically hold ±0.5–1.0 mm assembly tolerance depending on joint count, material, and fixturing strategy. Tighter callouts are confirmed at quote based on geometry and welding sequence.
All tolerances are validated through FAI and documented for traceability.
Quality Management System
Our ISO 9001-certified system ensures consistent process control and documentation:
- WPS/PQR: Welding procedure specifications and procedure qualification records per AWS/ASME/ISO
- Heat input tracking: Parameter logs, interpass temperature control, and cooling protocols
- Inspection flow: FAI → in-process checks → final inspection with traceable records
- NDT services: VT (visual test), PT (dye penetrant), MT (magnetic particle), UT (ultrasonic), RT (radiographic) as specified
- Leak/pressure testing: Available for manifolds, exhaust systems, and sealed assemblies
Documentation
We provide weld maps, lot traceability, material certifications (MTR), and inspection reports (CoC/CoA) upon request. PPAP packages are available for automotive and high-volume applications.
Applications & Assemblies: Frames, Manifolds, Guards
Robotic Frames & Chassis
Repeatable jigs for multi-batch production of AGV chassis, robotic pedestals, and mobile platform frames with tight fit-up tolerances.
Exhaust & Manifolds
Gas-tight welding with controlled distortion for automotive exhaust systems, HVAC ducting, and fluid manifolds. Post-weld dressing available for cosmetic applications.
Handrails, Racks & Guards
Consistent fillet welds and blended corners for marine handrails, equipment guards, and server racks. Passivation and powder coating available.
Medical & Sanitary Assemblies
TIG or orbital welding for clean, smooth beads on medical cart frames, IV stands, and sanitary piping with electropolishing available.
Pricing, Lead Times & RFQ Checklist
What Drives Price
Welding costs depend on material and wall thickness, joint count and length, access and positioning complexity, cosmetic requirements, NDT and documentation needs, batch size, and upstream operations (cutting, notching, bending).
RFQ Checklist—Include These Six Items
STEP / IGES / DWG / SLDPRT + PDF with weld symbols and critical datums
Alloy/temper, tube OD × wall (or pipe nominal + Schedule), seam type (ERW/DOM), required process (TIG/MIG/orbital/spot)
Joint types (butt/fillet/lap), penetration/gap requirements, cosmetic expectations (A/B faces), critical dimensions & GD&T
Machining, grinding/polishing, passivation/powder coat, assembly & kitting
Prototype → production quantities, takt targets, repeat order cadence
Ship-to region, packaging/fixture return requirements, incoterms (EXW/FOB/CIF)
Service Level: Engineering DFM feedback and pricing within 48 hours
From Cutting & Fixturing to Finished Welded Assemblies
We integrate upstream and downstream operations to deliver complete assemblies with streamlined logistics and consistent quality.
1. Laser Cutting & Notching
Precision tube cutting with weld-ready bevels, copes, and miters to ensure tight fit-up and reduce tack-welding rework.
2. Welding (Manual/Robotic/Orbital)
Fixture-controlled welding with documented parameters, heat input management, and in-process verification for repeatable results.
3. Machining & Finishing
Post-weld CNC operations for mounting holes, interfaces, and dimensional correction. Surface finishing with anodizing, powder coating, or polishing.
4. Assembly & Kitting
Final assembly, serialization, labeling, and packaging with QA documentation for direct delivery to your production line.
Frequently Asked Questions
What welding processes do you use for tube assemblies?
How do you control distortion on welded tube frames?
What quality certifications can you provide?
Can you weld thin-wall tubes without burn-through?
Do you weld aluminum tubes?
What file formats do you accept?
Request a Quote — Upload Your Drawings
Tell us your material, wall thickness, joint types, and quantities. We'll return DFM feedback and a firm quote within 48 hours.
Accepted Formats: STEP · IGES · DWG · SLDPRT · PDF
RFQ Form
This section will be replaced by an Elementor Form widget in production.
Form fields: File Upload, Material Spec, Welding Process Preference, Quantity, QA Documentation, Surface Finish, Delivery Terms