Nortel Unitorch Hand Torch
Premix
$421
US reference price
Hand configuration shown.
Overview
Best for: Lathe work, Scientific seals, Quartz, Flame cutting
- Mount
- Hand
- Fuel
- Propane, Natural gas
- Oxygen (estimate)
- Not confirmed
Specs
The Nortel Unitorch is a premix hand torch with six stainless-steel tips, built for scientific glassblowing: lathe work, seals, and flame cutting. Nortel says it easily works 40 mm quartz or 75 mm borosilicate standard-wall tubing.
Scientific glassblowers and lathe workers who need a tip-based premix hand flame for seals, dewars, and quartz or boro tubing work.
- Jets
- Not confirmed
- Stages
- 1
- Mount
- Hand
- Mix
- Premix
Specs
- Mix type
- Premix
- Mount
- Hand
- Oxygen (estimate)
- n/a
- Fuel
- Propane, Natural gas
- Skill level
- Intermediate, Advanced
- Glass
- Boro, Quartz
Manufacturer page · checked 2026-07-23 · sourceNortel explicitly lists 40 mm quartz and 75 mm borosilicate standard-wall tubing.
- Best for
- Lathe work, Scientific seals, Quartz, Flame cutting
- Price
- ~$421 (reference)
Manufacturer page · confirmed · checked and price captured 2026-10-17 · source
- Stages
- 1
Manufacturer page · checked 2026-09-05 · sourceSingle burner: Nortel's product page describes one premix hand torch carrying six interchangeable stainless tips, with no second burner or top fire.
Figures come from Nortel's own pages and manuals where we have them; the oxygen figure is a rough estimate, not a specification. Confirm the current spec with Nortel before you buy.
How we source these figures
Treat the oxygen figure as a rough sizing estimate. Depending on the model it may be manufacturer full-flame consumption, a converted flow figure, or a documented estimate, and delivered pressure and purity matter as much as flow. What actually drives a torch choice is the glass, the work, and the flame, so size your oxygen supply after you pick the torch.
Prices may be manufacturer list prices or observed dealer references. Where a cell carries an evidence line it says where the figure came from, the date we checked it, and links the source where we hold one; a cell without one rests on the sources at the foot of the page. On a phone those lines show while this note is open. Confirm the exact configuration with Nortel before buying.
Spec provenance: 3 of 7 spec fields on this page cite the manufacturer's own pages or manuals.
Overview
The Nortel Unitorch is a premix hand torch with six stainless-steel tips, and its home turf is scientific glassblowing: Nortel lists it for lathe work, dewars, fritted discs, round bottoms, ring seals, graded seals, glass-to-metal seals, and flame cutting. The headline capability is real capacity for a hand torch: Nortel says it easily works 40 mm quartz or 75 mm borosilicate standard-wall tubing.
What the Unitorch is
The Unitorch is a premix torch: fuel and oxygen are mixed inside the body before reaching the flame, which makes the flame simple to light, stable, and predictable, exactly what long seal-making sessions on a lathe demand. The six interchangeable stainless tips are the heart of the design: flame size and character come from the tips rather than a machined port face. For the mixing background, see surface mix vs premix torches; on format, see bench vs hand torch.
Who the Unitorch is for
This is a torch for scientific glassblowers, lathe workers, and repair techs, intermediate-to-advanced users working seals and tubing. It is not a beginner’s first flame and it is not a soft-glass bead torch; if that’s the search you’re on, start with our best beginner glass torch guide instead. If you’re weighing which glass family your work lives in, see soft glass vs boro vs quartz.
Fuel and oxygen
The Unitorch burns natural gas or propane with oxygen. Because the flame comes from the tips, oxygen use is tip-dependent, so no single LPM figure honestly describes the torch; size your supply to the largest tips you’ll run and confirm details with Nortel. Our how many LPM does my torch need guide explains how to think it through.
Where it sits in the Nortel line
The Unitorch is the scientific specialist among Nortel’s hand torches, alongside the surface-mix Ranger and the single-point premix Twin Fuel Handtorch. The same family continues with more tips in the nine-tip Unitorch-9 and the twelve-tip Unitorch-12.
Before you buy
Budget for the whole system, not just the torch: oxygen (a concentrator or tanks), the correct natural-gas or propane regulator, flashback protection matched to your torch and gas supply, appropriate eyewear for the glass you work (quartz work has its own requirements), and ventilation. New to plumbing a torch? Start with the fittings, hoses & connectors guide and the glass torch safety setup guide.
Editor’s note: capabilities and applications above are Nortel’s own listings for the Unitorch, checked July 2026. The price is the US-dollar figure on Nortel’s own store for the six-tip Uni-Torch, read 2026-10-17 (Nortel prices in Canadian dollars, so its US figure is a currency conversion that moves with the exchange rate), and flame and oxygen behavior depend on the tips, so confirm configuration and current pricing with Nortel before purchasing.
Fit and tradeoffs
Best for: Scientific glassblowers and lathe workers who need a tip-based premix hand flame for seals, dewars, and quartz or boro tubing work.
Not for: Beginners looking for a first soft-glass torch, or anyone needing a mounted bench flame, this is a specialist scientific hand tool.
Pros
- + Six interchangeable stainless-steel tips set the size and character of the flame
- + Premix flame: simple to light, stable, and predictable
- + Nortel says it easily works 40 mm quartz or 75 mm borosilicate standard-wall tubing
- + Built for lathe work, dewars, ring seals, graded seals, glass-to-metal seals, and flame cutting
Cons
- − A specialist scientific tool, not a general studio or beginner torch
- − Hand-held only; not a bench production tool
- − Flame size and oxygen use depend on the tips fitted, so no single LPM figure applies
Reader reviews
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Flame notes
Premix hand torch with six stainless-steel tips. Nortel lists lathe work, dewars, fritted discs, round bottoms, ring seals, graded seals, glass-to-metal seals, and flame cutting, and says it works 40 mm quartz or 75 mm borosilicate standard-wall tubing.
Maker
Nortel Manufacturing
Canada · Founded 1967
Focus: Soft, Boro, Beginner
Toronto manufacturer founded by Peter Norton. The current mounted line is surface mix; selected hand torches and optional top burners are premix.
Related reading
FAQ
- What is the Nortel Unitorch?
- It's Nortel's six-tip premix hand torch for scientific glassblowing. Nortel lists it for lathe work, dewars, fritted discs, round bottoms, ring seals, graded seals, glass-to-metal seals, and flame cutting.
- Is the Unitorch surface-mix or premix?
- It's a premix torch: fuel and oxygen are mixed inside the torch before reaching the flame. Premix burners are simple to light, stable, and predictable, which is why the style dominates scientific hand torching.
- What can the Unitorch work?
- Nortel says it easily works 40 mm quartz or 75 mm borosilicate standard-wall tubing. That's serious capability for a hand torch; the six interchangeable stainless tips are what set its flame.
- Is the Unitorch a good beginner torch?
- No. It's a scientific and lathe-work tool for intermediate-to-advanced users. A beginner working soft glass at a bench is far better served by a bench burner; see our best beginner glass torch guide.
Researched and edited by Joe Blanchard, sixteen years on the distribution side of the glass industry.