Galvanized & stainless steel
Rectangular & Spiral Ducts
Airflow control assemblies
Precision Dampers & Louvers
Laser cut & CNC formed
Custom Transitions & Fittings
SMACNA compliant tolerances
Air Handler & Equipment Enclosures
HVAC sheet metal fabrication for global OEMs
SafeFaber delivers custom HVAC sheet metal components and duct assemblies from prototype to high-volume production. We partner with HVAC contractors, MEP engineers, and industrial brands worldwide as a dependable fabrication supplier.
- SMACNA compliant ductwork
- Galvanized, stainless & aluminum
- Rapid prototyping to bulk OEM
Custom sheet metal fabrication for commercial and industrial HVAC
SafeFaber provides precision sheet metal fabrication for heating, ventilation, and air conditioning equipment. We support projects at every stage, from rapid one-off prototyping to scheduled bulk OEM production runs.
We work directly with HVAC contractors, MEP engineers, and mechanical system integrators. Our team fabricates durable custom HVAC sheet metal components designed for efficient airflow, low static loss, and tight mechanical tolerances.
All sheet metal HVAC parts are formed from certified galvanized steel, stainless steel, or aluminum. Our manufacturing and welding processes adhere strictly to SMACNA and international HVAC quality standards to ensure safe, repeatable field installation.
Related reading: galvanized vs galvannealed steel and sheet metal welding processes and louver and airflow design.
Strict dimensional control, airtight seam interlocking, and burr-free edges on every fabricated component.
Who we build for
Tailored OEM supply for HVAC infrastructure
HVAC contractors
Pre-fabricated duct runs, fittings, and accessories ready for fast jobsite installation.
MEP engineers
Custom sheet metal HVAC parts built strictly to architectural drawings and airflow models.
System integrators
Housings, louvers, and plenum boxes built for industrial climate control setups.
Core sheet metal materials
Certified stock for clean, durable airflow
Galvanized steel
G60 / G90 coatingStandard ductwork and volume dampers
Stainless steel
304 & 316 gradeCorrosive, kitchen, and cleanroom air systems
Aluminum
3003 & 5052 alloysLightweight and moisture-exposed installations
Key HVAC sheet metal products
SafeFaber provides end-to-end OEM and custom HVAC ductwork fabrication for commercial and industrial air handling projects. Each component is formed from galvanized steel, stainless steel, or aluminum to strict project specifications.
Rectangular ducts, spiral seam ducts, and custom HVAC ductwork manufactured to tight dimensional tolerances.
Key configurations:
Rectangular ducts, spiral ducts, custom ductwork
Precision-formed HVAC dampers engineered for reliable air regulation, leakage control, and fire safety.
Key configurations:
Volume dampers, fire dampers, butterfly dampers, backdraft dampers
Modular and custom duct fittings built with smooth internal radii for optimized airflow design.
Key configurations:
Elbows, tees, reducers, flanges, transitions
Heavy-duty cabinets and protective housings for air handling units, fans, and ventilation control systems.
Key configurations:
Equipment housings, air handler cabinets, control boxes
Formed plenum boxes and air terminals designed for balanced supply and return air delivery in commercial setups.
Key configurations:
Grille frames, register boxes, return air plenums, hoods
Need custom dimensional standards or specific gauges?
SafeFaber builds custom duct fittings and transitions, reinforced plenum boxes, and industrial HVAC dampers straight from your CAD/DXF drawings.
How your parts move from drawing to delivery
A predictable six-stage manufacturing workflow designed for strict tolerances, certified quality control, and on-time global shipments.
Project Briefing
Submit your CAD drawings, material grades, volume needs, and target delivery dates.
Design & DFM Review
Our engineers evaluate bend radii, weld seams, and tooling to optimize cost and manufacturability.
Prototype
We build first-article samples to confirm assembly tolerances, fit, and structural integrity.
Fabrication
Laser cutting, CNC panel bending, precision welding, and powder coating run in scheduled batches.
Quality Inspection
Complete dimensional verification, coating thickness checks, and CMM inspection documentation.
Delivery
Custom protective packaging, palletization, and sea/air export logistics to your destination.
Ready to start your manufacturing review?
Send your STEP, DXF, or PDF engineering files for a formal quotation and DFM assessment.
Engineered HVAC fabrication capabilities
From SMACNA duct standards to tight-tolerance custom fittings, get verified sheet metal components built for demanding air distribution systems.
Need custom ductwork dimensions or high-volume HVAC production?
Share your engineering drawings, pressure specs, and bill of materials.
HVAC sheet metal built to spec
Ductwork, dampers, and equipment housings manufactured with tight tolerances, verified air-tight sealing, and dependable delivery schedules.
Full-range HVAC sheet metal production
Custom ductwork, plenum boxes, dampers, and structural housings formed to exact dimensions.
Industry standard compliance
Manufactured strictly to SMACNA, ASHRAE, and international commercial HVAC specifications.
Precision sealing & seam integrity
Air-tight Pittsburgh seams, snap locks, and continuous seam welds to minimize system leakage.
Consistent batch quality
Automated CNC laser cutting and panel bending ensure uniform fit across large-volume runs.
One-stop design to delivery
Complete manufacturing support from DFM sheet metal engineering to final packaging and global shipping.
Competitive OEM contract pricing
Direct manufacturing pricing with flexible tiered volume schedules and managed material sourcing.
Ready to manufacture your HVAC components?
Send your CAD drawings and batch specifications for a direct quote.
Air handling and HVAC systems built to specification
From commercial air distribution to critical clean room and data center cooling, we fabricate precision sheet metal components and assemblies for high-performance airflow systems.
Custom engineering support and DFM analysis
Send your STEP, DXF, or DWG drawings. We deliver tolerance inspection, custom laser nesting, and modular assembly options.
HVAC Duct Fabrication Process: Cutting, Seaming, Flanging and Insulation
Our China facility executes end-to-end hvac sheet metal fabrication using calibrated CNC equipment to produce airtight, structurally sound duct systems for commercial and industrial projects worldwide.
Cutting and Notching Duct Blanks
Production begins with automated decoiling, high-precision fibre laser cutting, and CNC punching of 0.5-3.0 mm blanks. Automated nesting software minimises material scrap while forming corner notches, bolt holes, and fold lines accurately. Fabricators rely on our sheet metal thickness and gauge tables across galvanized, carbon, and stainless steel raw materials before precision press-brake folding.
Seaming and Lock Forming
Straight duct sections and specialized fittings pass through roll formers to produce longitudinal Pittsburgh lock or snap lock seams. Dedicated roll formers also shape integrated TDF flange profiles directly into blank edges. Operators then close the corner locks and apply elastomeric seam sealant internally, ensuring complete joint integrity under demanding pressure ratings during rigorous hvac metal fabrication.
Flanging, Stiffening and Reinforcement
Transverse joints are completed using precision slip-on cleats, angle iron rings, or roll-formed flanges. To prevent panel deflection under positive or negative airflow cycles, wide ducts receive internal tie rods and external hat-channel stiffeners. Welded flanges undergo dressing, and assemblies receive specialized duct coatings and finishes suited for aggressive industrial or seaside operating environments.
Insulation and Acoustic Lining
For thermal retention and sound attenuation, duct runs undergo factory insulation before final crating and dispatch. We install internal acoustic lining using mechanical weld pins and contact adhesives. Alternatively, external foil-faced elastomeric or mineral wool wraps are secured to prevent condensation. This turnkey process completes our OEM contract manufacturing workflow for high-volume hvac sheet metal fabrication projects.
Frequently asked questions
Quick facts about our standards, materials, custom capabilities, and production lead times.
Have specific drawings or custom requirements?
Upload your CAD files for a fast DFM review and quotation.
Related fabrication services
Integrate custom sheet metal parts, ventilation assemblies, and early-stage engineering into one reliable supply chain.
Ready to manufacture your HVAC components?
SafeFaber provides end-to-end custom fabrication for ducts, dampers, plenum boxes, and commercial HVAC assemblies. Send your drawings for rapid engineering review and competitive direct-factory pricing.
STEP, IGES, DXF, DWG, and PDF drawings
Quotations and manufacturability review in 24h
Full dimensional inspection and airtight fit testing
Non-disclosure agreements (NDAs) supported upon request prior to drawing submission.