Should I buy SBAL-V or SBAL-III auto duct line?

SBAL-V if you need 0.5–1.5 mm gauge including stainless, U-shape continuous flow, single-operator running and 18 m/min line speed (40 kW total drive). SBAL-III if you need 0.5–2.0 mm gauge with hydraulic notching and shearing at 18 m/min (10.7 kW total drive), you have mixed work types (commercial + occasional industrial), and you want a 25-30% lower capital outlay than SBAL-V. See SBAL-V vs SBAL-III detailed comparison for the full analysis.

Which SBTF spiral tubeformer model should I buy?

SBTF-1500: round duct Φ80-1500 mm, saw blade cutting, the entry-level workhorse for general commercial. SBTF-1500C: Φ100-1500 mm, plasma cutter + saw blade cutting, for higher-spec galvanized + stainless work. SBTF-1602: Φ80-1600 mm with plasma cut and flying slitter, large-diameter commercial, hospital, data centre and semiconductor support duct. SBTF-2020: Φ80-2500 mm with patented flying slitter and automatic length control, very-large-diameter for tunnel ventilation, mining main shaft and heavy industrial. Match diameter range to your largest expected work plus 25% headroom.

TDF flange former or Pittsburgh lockformer?

TDF flange former produces an integrated transverse flange that eliminates the welded angle iron joint. Faster installation, tighter SMACNA Class A leakage compliance, used as standard on data centre, semiconductor, pharma cleanroom and modern commercial projects. Pittsburgh lockformer produces a longitudinal seam that closes the rectangular section. Both are typically required for a complete duct shop — they perform different functions, not alternatives. The decision is which one to buy first if budget is constrained: TDF flange former for tier-1 commercial and tight-leakage projects, Pittsburgh lockformer for general commercial and budget-constrained projects.

What is the total package cost for a complete duct shop?

For a tier-1 commercial duct shop fabricating both rectangular and round duct: SBAL-V auto duct line USD 380,000-680,000 + SBTF-1602 spiral tubeformer USD 130,000-185,000 + TDF flange former USD 35,000-55,000 + Pittsburgh lockformer USD 18,000-28,000 + auxiliary tooling USD 25,000-50,000 = total landed package USD 580,000-1,000,000 depending on configuration. For a budget shop: SBAL-III + SBTF-1500 + lockformer = approximately USD 470,000-650,000 landed. Taokron engineers can build a worksheet for your specific configuration during a machine demonstration or via the contact form.

Which machines should an aspiring duct shop buy first?

For a new entrant: start with SBAL-III auto duct line (the most flexible across volume ranges) plus a Pittsburgh lockformer for longitudinal seam closure. This minimum viable shop can fabricate rectangular duct for the bulk of commercial projects at a USD 320,000-480,000 capital outlay landed. Add SBTF-1500 spiral tubeformer in year 2 to expand into round duct (additional USD 100,000-150,000). Upgrade to SBAL-V in year 3-5 once volume grows. The key principle: start narrower, expand as project volume justifies.

Are stainless variants available for cleanroom and food projects?

Yes, most Taokron machine families are available in stainless-capable configuration: SBAL-V stainless (304L and 316L tooling, reduced-speed cutting blades, stainless-compatible lubrication), SBTF spiral tubeformer stainless (304L and 316L mandrel and forming rollers), TDF flange stainless. Stainless adds approximately 8-15% to the base machine price and extends lead time by 10-15 days. Required for pharma cleanroom, semiconductor, food contact, marine, hydrogen ATEX zones.

What if I need very large diameter (>2,000 mm) duct?

SBTF-2020 covers up to Phi 2,000 mm, which is sufficient for most tunnel ventilation main supply, mining decline portals and industrial ventilation. For very large diameter (3-5 m) main shafts in major rail tunnel and hydropower projects, specialist large-diameter rolling equipment is required which is beyond Taokron's standard SBTF range. Taokron supplies the up-to-2,000mm portion and the buyer's tunnel specialist supplies the larger shafts. Email sales@taokron.com to discuss specific large-diameter requirements.

How do I get a custom quotation?

Email sales@taokron.com or use the contact form with: your project type (commercial / data centre / pharma / heavy industrial / etc.), your throughput target (m²/day or m²/year), your typical duct dimensions (rectangular max width, round max diameter), your coil specification (gauge, material, supplier mill cert if available), and your destination port. Taokron engineers reply within 12 hours with an indicative landed-cost worksheet for your country including ocean freight, marine insurance, customs entry and 5-10 days of installation supervision. Final binding quotations require a follow-up technical clarification.

Decision tool · Side-by-side specifications

Compare Taokron HVAC Ductwork Machines

Side-by-side specifications, output figures, footprints, electrical loads and indicative pricing for the Taokron machine families. Use this page as a decision matrix when scoping a new HVAC duct fabrication shop or upgrade. Detailed model-by-model engineering reference is in our insights library; this page is the quick-reference comparison.

Request a custom configuration quote Book a machine demonstration

Interactive

Which Taokron machine do you need?

Answer three questions. The recommendation routes to the exact Taokron models for your duct — every figure is from the Taokron Product Catalog 2026, and you go straight to the product page or a quote.

1. What duct do you fabricate?

More free Taokron tools: Payback & ROI calculator · Gauge ↔ mm converter · Duct weight estimator

Quick decision matrix

Match your project profile to the right Taokron machine combination:

Tier-1 commercial / data centre / pharma cleanroom

Auto duct line: SBAL-V (galvanised + stainless option, 18 m/min, 40 kW, up to 1550 mm wide)
Spiral tubeformer: SBTF-1602 (Φ80-1600 mm, 0.4–2.0 mm galvanized, 0.4–1.2 mm stainless)
Flange former: TDF flange former
Lockformer: Pittsburgh lockformer (backup for legacy work)
Indicative package landed: USD 580,000-1,000,000
Throughput: Project-specific — share your duct schedule with Taokron engineering

General commercial contractor

Auto duct line: SBAL-III
Spiral tubeformer: SBTF-1500 (Φ80-1500 mm, saw blade cutting)
Lockformer: Pittsburgh lockformer
TDF flange former: Optional in year 2
Indicative package landed: USD 470,000-650,000
Throughput: Project-specific — share your duct schedule with Taokron engineering

New entrant / minimum viable shop

Auto duct line: SBAL-III
Lockformer: Pittsburgh lockformer
Spiral tubeformer: Add in year 2 once volume grows
Indicative package landed: USD 320,000-480,000
Throughput: Rectangular duct only initially — project-specific

Heavy industrial / mining ventilation / tunnel

Spiral tubeformer: SBTF-2020 (Phi 100-2,000 mm) for large-diameter main duct
Auto duct line: SBAL-V heavy-gauge configuration for processing rectangular
Welded duct equipment: Required for refuge bay and high-temperature exhaust (separate specialist scope)
Indicative package landed: USD 700,000-1,200,000
Throughput: Project-specific (tunnel projects run multi-shift for 12-24 months)

Pharma cleanroom / semiconductor / battery gigafactory

Auto duct line: SBAL-V stainless variant (304L or 316L)
Spiral tubeformer: SBTF-1602 stainless
Welding station: Orbital TIG welding for stainless seam welds
TDF flange former: Stainless variant for tight-leakage cleanroom
Indicative package landed: USD 900,000-1,400,000
Throughput: Cleanroom-spec ductwork to SMACNA Class A or EN 1507 Class D

Machine-by-machine comparison

SBAL-V vs SBAL-III auto duct production lines

The two flagship rectangular duct lines from Taokron. Detailed reference: SBAL-V vs SBAL-III comparison guide.

Product pages: SBAL-V · SBAL-III

SBAL-V line speed: 18 m/min, 40 kW total drive, single-operator U-shape continuous flow
SBAL-III line speed: 18 m/min, 10.7 kW total drive, two-operator inline + separate TDF
SBAL-V section size: 200–1500 mm wide, 0.5–1.5 mm gauge
SBAL-III section size: 200–1500 mm wide, 0.5–2.0 mm gauge
SBAL-V cycle time: ~3 minutes coil to crated section
SBAL-III cycle time: ~5 minutes coil to crated section
SBAL-V capital cost landed: USD 380,000-680,000
SBAL-III capital cost landed: USD 280,000-450,000
SBAL-V footprint: 25 m x 5 m primary line + 4 m x 3 m decoiler + 3 m exit buffer
SBAL-III footprint: 18 m x 4 m primary + 3 m x 3 m decoiler + 2 m exit
SBAL-V electrical load: 30-45 kW connected, 22-30 kW operating
SBAL-III electrical load: 18-28 kW connected, 12-20 kW operating
Crossover point: 25,000-30,000 m²/year — below = SBAL-III, above = SBAL-V on TCO

SBTF spiral tubeformer model lineup

Four standard models, choose based on largest expected diameter plus 25% headroom for project growth.

SBTF-1500: Φ80-1500 mm, saw blade cutting, mainframe 5.5 kW + saw blade 4 kW, weight 1700 kg, dimensions 2800×2100×1200 mm. The entry-level workhorse for general commercial.
SBTF-1500C: Φ100-1500 mm, plasma cutter + saw blade cutting, mainframe 5.5 kW + saw blade 1.2 kW + plasma 7.5 kW, weight 2500 kg, dimensions 3800×2100×1200 mm. Higher-spec galvanized + stainless work.
SBTF-1602: Φ80-1600 mm, plasma cut and flying slitter, mainframe 15 kW + cooling pump 0.25 kW, weight 5000 kg, dimensions 3500×1700×1900 mm. Large-diameter commercial, hospital, data centre.
SBTF-2020: Φ80-2500 mm, patented flying slitter + automatic length control, mainframe 22 kW + cooling pump 0.25 kW, weight 4500 kg, dimensions 3500×1800×1900 mm. Tunnel ventilation, mining, industrial.
Stainless variant: 304 or 316 stainless option available across all four models — adds 8-15% to base machine price.

TDF flange former vs Pittsburgh lockformer

Most duct shops need both. They serve different functions in the duct fabrication workflow:

TDF flange former (transverse flange): Roll-forms a TDF flange directly into the rectangular duct edge, replaces welded angle iron flange. Output approximately 4 m/min on 1.0 mm galvanised. Used for tight-leakage SMACNA Class A applications: data centre, semiconductor, pharma cleanroom, modern commercial. Capital cost landed USD 35,000-55,000.
Pittsburgh lockformer (longitudinal seam): Forms the Pittsburgh lock seam that closes the rectangular section, the standard longitudinal seam for rectangular duct since the 1920s. Output approximately 8 m/min on 1.0 mm galvanised. Used on virtually all rectangular duct including modern. Capital cost landed USD 18,000-28,000.
Detailed reference: TDF vs angle flange comparison and Pittsburgh lock vs button-punch snaplock.

By industry vertical

Match your project industry to the recommended Taokron machine configuration. Each link goes to the dedicated industry hub:

Data centres — SBAL-V + SBTF-1602 + TDF + Pittsburgh, SMACNA Class A
Semiconductor fabs — SBAL-V stainless + SBTF-1602 stainless + orbital TIG welder, ULPA-grade
Battery gigafactories — SBAL-V stainless + galvanised mix, dry room dewpoint -40 to -60°C
Hydrogen production — SBAL-V 316L stainless + ATEX/IECEx zone-rated panel
Airports and aviation — SBAL-V high-volume galvanised + SBTF-1602
Marine and offshore (AUKUS) — SBAL-V 316L stainless + Cu-Ni for some applications
Tunnel and infrastructure — SBTF-2020 + SBAL-V heavy-gauge + welded duct
Stadiums and sports venues — SBAL-V high-volume + SBTF + TDF + smoke management duct
Heavy industrial (steel/cement/paper/composite/paint) — SBAL-V + SBTF for building HVAC; process duct beyond Taokron scope
Cleanrooms (general) — SBAL-V stainless + SBTF stainless + TDF stainless
Hospitals — SBAL-V galvanised + SBTF for OR/AIIR/PE pressure zones
Mining ventilation — SBTF-2020 for main duct + SBAL-V heavy-gauge for surface processing
Cold storage and cold chain — SBAL-V galvanised standard + SBTF + TDF for vapor-tight
Food processing — SBAL-V stainless + SBTF stainless for sanitary food contact

Get a custom configuration quote

Every project is different. Use the contact form to request a custom quotation including:

Specific machine models recommended for your project
Indicative landed-cost worksheet for your destination port
FAT timeline and shipping schedule
Installation supervision days and engineer travel
Spare parts kit recommendation for first 12 months
Operator and maintenance training scope
Warranty terms and remote support coverage

Request a custom configuration quote