Strong, clean joints in steel, stainless and aluminium — welded and inspected in-house at our China factory. Get a factory-direct quote within 24 hours.
The problem
A weak joint fails in the field. A rough bead costs you hours of grinding. Too much heat warps the whole frame.
With YiguProto as your China manufacturer and supplier, you get one accountable partner from quote to delivery.
The basics
Welding melts two pieces of metal so they fuse into one. The right process depends on the material, the thickness and the finish you need.
Welding joins metal by heat and pressure, with or without a filler. The result is one solid piece — stronger than bolts or glue.
Different jobs need different processes. Thin sheet burns through with too much heat. Thick plate needs more power and more passes.
We match the process to your part, so the joint is strong, clean and repeatable — batch after batch.
A welded joint is stronger and more rigid than bolts or fasteners.
Weld instead of bolting, and you cut part count and assembly time.
Tidy beads and smooth blending mean less grinding and rework.
Written procedures keep batch 1 and batch 100 the same.
Processes
We do not force one process onto every job. We pick the one that fits your part, so you get welding solutions built around your design.
TIG
Best for: thin metal & neat beads
Clean, precise welds with a stable arc. Great for stainless and aluminium.
MIG
Best for: speed & strength
A fast, strong process for steel, stainless and aluminium at volume.
SPOT
Best for: sheet stacks
Joins overlapping sheets with no filler and very little distortion.
LASER
Best for: tiny heat zone
A narrow weld with almost no distortion — ideal for precise, small parts.
STUD
Best for: fasteners on sheet
Fixes studs and pins to sheet fast, with a clean, uniform fillet.
ROBOT
Best for: repeat production
The same weld, every time. Ideal for frames and parts made in volume.
Materials
We match the filler metal and shielding gas to your material, so the joint holds.
CS
Mild · 1018 · 1045
The workhorse metal for frames, brackets and base plates.
Steel materials →SS
304 · 316L
Corrosion-resistant welds for food, medical and outdoor parts.
Stainless steel →AL
5052 · 6061
Light and strong. Welds fast with the right AC TIG setup.
Aluminium materials →GS
Hot-dip · Electro
Zinc-coated steel for outdoor frames that must not rust.
Steel materials →TI
Grade 2 · Grade 5
High strength-to-weight. Welded in a shielded, clean setup.
Titanium materials →NI
Inconel · Monel
Heat and corrosion resistance for tough, high-temperature parts.
Nickel materials →Capabilities
Real numbers, so you can spec your part with confidence. Our company runs these processes every day for customers worldwide.
| Feature | Capability |
|---|---|
| Processes | TIG, MIG, spot, stud, laser, robotic |
| Weld position tolerance | ±0.2 mm |
| Material thickness | 0.5 mm to 20 mm |
| Max weldment weight | Up to 500 lb (227 kg) |
| Materials | Steel, stainless, aluminium, copper, brass, titanium |
| Joint types | Butt, lap, T-joint, corner |
| Standards | AWS D1.1 / D1.2 / D1.3 / D1.6 based |
| Inspection | Visual, dye penetrant, leak test, dimensional report |
| Finishing | Grinding, heat treatment, powder coating, passivation |
| Lead time | 3–8 business days |
Quality
You should not have to guess whether a joint is sound. We check it and show you the results.
Every job follows a set procedure, so the weld is repeatable, not guesswork.
We check bead size, position and part dimensions against your drawing.
A quick test that finds surface cracks and porosity before parts ship.
For tanks and pressure parts, we test for leaks and joint strength.
Industries
We build frames, enclosures and assemblies for teams that cannot afford a failed joint.
Finishing
Grinding, heat treatment and coating all happen in the same factory, so parts do not travel between shops. It is one complete set of fabrication solutions.
Save money
Small design choices cut the price without weakening the joint.
Match the joint to a standard process instead of a one-off setup.
Fewer joints mean less labor and less heat going into the part.
Ask only for the blending or coating the part really needs.
Fixtures pay off across a batch. A slightly larger run spreads the cost.
Why teams trust us
You are not buying a welding machine. You are buying a team that has done this thousands of times.
10+ years welding and fabricating in China, with 200+ skilled workers and in-house engineers.
DFM review on every quote. We flag a bad joint before the first arc.
Our company in Dongguan, China runs cutting, bending, welding and finishing under one roof.
ISO 9001:2015 managed quality. NDAs signed on request. Files kept confidential.
How it works
Send STEP, STP, IGES or PDF drawings.
Free DFM review and a clear, itemized price.
Cut, weld and inspect in-house, with reports.
Global shipping with tracking and full documents.
FAQ