857 Woodward Ave, Hamilton, ON 905-388-7377 info@rumix.org
RUMIX Machining & Fabrication crest RUMIX

MIG · TIG · Stick · Brazing

Custom Welding & Brazing Services

Strong, clean welds in steel, stainless and aluminum — from structural frames to precision stainless work and emergency weld repairs, ground and finished to your specification.

Welder in a protective helmet welding steel
18 yrsaverage welder experience

Welding done right the first time

A weld is only as good as the preparation behind it

Our welders work across structural steel, stainless and aluminum, and every weld is visually inspected before it leaves the shop. Because welding sits next to machining, we can machine critical features after welding so the finished part holds its dimensions. Why weld quality beats weld speed

  • MIG welding (GMAW)
  • TIG welding (GTAW)
  • Stick welding (SMAW)
  • Brazing
  • Stainless steel welding
  • Aluminum welding
  • Structural frames & bases
  • Weld repair of cracked parts
  • Welds ground to specified finish

Choosing a process

MIG, TIG, stick or brazing?

Each process has strengths. Here’s how they compare — we choose the right one for your material, thickness and finish.

GMAW

MIG

Fast and versatile — the workhorse for production welding and frames.

Speed
Appearance
Heavy sections
Best on: Mild steel, stainless, aluminum
GTAW

TIG

Precise and clean — for visible welds, thin material and food-grade stainless.

Speed
Appearance
Heavy sections
Best on: Stainless, aluminum, thin sheet
SMAW

Stick

Tough and forgiving — heavy sections, repairs and less-than-perfect conditions.

Speed
Appearance
Heavy sections
Best on: Carbon steel, cast iron repair
Brazing

Braze

Low heat, low distortion — joins thin parts and dissimilar metals.

Speed
Appearance
Heavy sections
Best on: Copper, brass, dissimilar metals

Ratings are a relative guide, not a specification.

Weld finish

Specify the finish you need

As-weldedBead left as laid, spatter removed. For structural and hidden welds.
Ground flushGround level with the parent metal. For mating surfaces and paint-ready parts.
Blended / sandedGround and sanded to a uniform surface. For visible equipment and guards.
PolishedFine finish matching surrounding material. For sanitary and cosmetic stainless.

Reference data

Common filler metals

Filler metal selection (AWS classifications)
Base materialProcessTypical fillerNotes
Mild / carbon steelMIGER70S-6General purpose, tolerates light mill scale
Mild / carbon steelStickE7018Low-hydrogen; preferred for structural and crack-sensitive work
Stainless 304 / 304LTIG / MIGER308LLow carbon to resist corrosion at the weld
Stainless 316 / 316LTIG / MIGER316LMatches molybdenum content for chloride resistance
Aluminum 6061TIG / MIGER4043 or ER53564043 flows well and resists cracking; 5356 is stronger and anodizes better

Final filler selection is confirmed against your drawing and service conditions.

“Rumix takes pride in its work and their quality is unmatched. They build a complete machine from sourcing of raw material to fabricating, assembling, painting and testing.”

— OEM – Industrial, Rumix customer for 20 years

Welding knowledge base

Learn before you weld

  1. Weld it or replace it? How to know which is right
  2. MIG, TIG and stick welding — what’s the difference?
  3. What causes welds to crack — and how to prevent it
  4. How to weld a pump back to life

Service area

Welding services for customers in Hamilton, Burlington, Oakville, Mississauga, Toronto, Brampton, Kitchener-Waterloo, Cambridge, Guelph, Brantford, Niagara and across Southwestern Ontario.

  • Hamilton
  • Burlington
  • Oakville
  • Mississauga
  • Brampton
  • Toronto
  • Concord & Woodbridge
  • Richmond Hill
  • Milton
  • Stoney Creek
  • Grimsby
  • St. Catharines & Niagara

FAQ

Welding questions

Which welding processes do you use?
MIG (GMAW), TIG (GTAW) and stick (SMAW) welding, plus brazing. We choose the process based on the material, thickness, strength requirement and the finish you need. See MIG vs TIG vs stick explained.
Can you weld stainless steel and aluminum?
Yes. We TIG and MIG weld stainless and aluminum, using the correct filler metals (for example ER308L for 304 stainless and ER4043 or ER5356 for aluminum) and finishing the welds to your requirement.
Can you repair a cracked or broken part?
Usually, yes — and it is often faster and cheaper than replacing it. We assess the crack, prepare the joint, weld it and re-machine it if needed. Read weld it or replace it? and what causes welds to crack.
Do you grind or polish welds?
Yes. We grind and sand welds and brazes to the specified finish — from ground flush to blended and polished — which matters for food-grade, cosmetic and moving parts.
Do you do on-site welding?
Most work is done in our Hamilton shop where we control quality. For equipment that can’t be moved, call us to discuss your job.

Send us your drawings.

Upload a drawing, sketch or photo and we’ll come back with a quote. No minimum order — one piece or a production run.