Square Duct Making Machines

Pittsburgh lock former machine is a basic HVAC duct forming machine that forms the locks of a duct. Preda Machine Pittsburgh lock former is made from highest quality components which include an all steel forming head hardened with ground shafts. The steel forming rolls are hardened using matching cut gears and needle bearings which can be used for years.

Parameter	SA-12HB	SA-15HB
Material Thickness (Galvanized)	0.5-1.2mm (18Ga)	0.5-1.5mm (16Ga)
Material Thickness (Stainless)	0.4-0.8mm	0.4-1.0mm (20Ga)
Lock Size	6mm standard	6mm standard
Forming Speed	18 m/min	15 m/min
Motor Power	1.1 kW	1.5 kW
Roller Material	45# steel	GCr15 bearing steel
Weight	280 kg	350 kg

Specialized S-cleat lock forming machine for producing S-slip connectors used in traditional rectangular duct assembly. Hardened alloy steel forming rollers for consistent cleat dimensions.

Parameter	Value
Model	SA-12S
Material Thickness	0.5-1.2 mm
Cleat Type	S-slip
Forming Speed	12 m/min
Motor Power	1.1 kW
Weight	280 kg
Roller Material	Hardened alloy steel

Snaplock (pittsburgh snap) forming machine for quick-assembly duct connections without fasteners. One-pass snaplock forming reduces assembly time significantly.

Parameter	Value
Model	SN-10
Material Thickness	0.4-1.0 mm
Snap Size	Standard
Speed	15 m/min
Power	0.75 kW
Features	One-pass forming, lightweight, portable

Drive cleat bender for forming drive cleats used in rectangular duct connection. Efficient solution for duct fabrication with consistent cleat profile.

Parameter	Value
Model	SN-20 / CB-700
Cleat Type	Drive Cleat
Material Thickness	0.5-1.2 mm
Max Width	700 mm
Operation	Manual / Electric
Power	0.55 kW

Single-head TDF flange forming machine for standard rectangular duct flange production. T-12 for standard gauge, T-15 for heavier gauge material.

Parameter	T-12	T-15
Material Thickness	0.5-1.0mm	0.6-1.5mm
Flange Size	TDF T-12	TDF T-15
Speed	12 m/min	10 m/min
Power	1.5 kW	2.2 kW
Frame	Standard	Reinforced

Dual-head TDF flange former for simultaneous forming on both duct edges, doubling throughput. Available with integrated cleat notching station for complete flange preparation.

Parameter	T-12-2	T-15-2
Material Thickness	0.5-1.2mm	0.6-1.5mm
Heads	Dual (2 sides)	Dual (2 sides)
Speed	15 m/min	12 m/min
Power	2.2 kW	3 kW
Cleat Station	Optional	Optional
Drive	Heavy-duty gear	Heavy-duty gear

TDC (Transverse Duct Connector) flange forming machine for heavy-duty rectangular duct connections. TDC profile provides stronger connection for larger duct and higher pressure systems.

Parameter	Value
Model	PDT-20 / TDC-40
Material Thickness	0.6-1.5 mm
Flange Type	TDC
Speed	10 m/min
Power	2.2 kW
Features	Stronger connection, compatible with TDC hardware

Power fastener tool for TDC flange fastening using Trumf Fconnect system. Quick and secure flange connection without rivets or screws.

Parameter	Value
Model	PF-12 / L-25
Fastener Type	Trumf Fconnect
Application	TDC flange fastening
Operation	Pneumatic / Electric
Air Pressure	0.6-0.8 MPa
Weight	3.5 kg

Manual pan brake (finger brake) for versatile box and pan forming. Removable finger set with adjustable clamping force and precision angle indicator.

Parameter	Value
Models	WS-1.5×1300 / 1500 / 2000 / 2500
Bending Length	1300 / 1500 / 2000 / 2500 mm
Material Thickness	Up to 1.5 mm
Finger Width	Multiple sizes
Operation	Manual
Features	Removable fingers, angle indicator, heavy-duty frame

Manual TDF flange folding machine for consistent 90-degree flange bends on duct edges. Available in multiple widths, no power needed.

Parameter	Value
Models	TDF-1.5×1300 / 1500 / 2000 / 2500
Max Width	1300 / 1500 / 2000 / 2500 mm
Bend Angle	0-135 degrees
Material Thickness	0.5-1.2 mm
Operation	Manual
Weight	180 kg (1500mm)

Pneumatic TDF bending machine for shops with compressed air supply. Fast and simple operation with quick bending action and low energy consumption.

Parameter	Value
Models	QTDF-1.5×1300 / 1500 / 2000 / 2500
Max Width	1300 / 1500 / 2000 / 2500 mm
Bend Angle	Up to 90 degrees
Material Thickness	0.5-1.0 mm
Air Pressure	0.6-0.8 MPa
Operation	Pneumatic

Electric-powered guillotine shear for clean, straight cutting of sheet metal. Multiple cutting lengths available with precision backgauge and safety light curtain.

Parameter	Value
Models	1.5×600 / 1.5×1000 / 1.5×1300 / 1.5×1500
Cutting Length	600 / 1000 / 1300 / 1500 mm
Material Thickness	Up to 1.5 mm
Stroke Rate	30/min
Power	1.5 kW
Safety	Light curtain

Tiltable punch press for TDF corner making and general sheet metal punching. 25-ton capacity with adjustable stroke and die space.

Parameter	Value
Model	J23-25T
Nominal Force	25 tons
Stroke	Adjustable
Die Space	Standard
Operation	Foot pedal
Application	TDF corner making, punching

Precision TDF and TDC corner molds for producing standard flange corners from galvanized or stainless steel sheet. Hardened tool steel for long service life.

Parameter	Value
Models	TDF-35 / PD-01 (TDF) / PD-02 (TDC) / PD-03 (G-Clamp)
Corner Type	TDF / TDC / G-Clamp
Material Thickness	0.5-1.2 mm
Tool Material	Hardened tool steel
Life	50,000+ cycles
Compatibility	Standard punch presses

Duct beading machine for providing stiffening beads on rectangular duct panels. Available in 1300mm and 2000mm widths with adjustable groove spacing.

Parameter	G1.2×1300	G1.2×2000
Max Width	1300 mm	2000 mm
Grooves	5 (adjustable)	7 (adjustable)
Material Thickness	0.4-1.0 mm	0.4-1.2 mm
Power	0.75 kW	1.5 kW
Features	Adjustable spacing	Wide capacity, heavy-duty

Combined duct beader and leveler machine for stiffening and flattening sheet metal in one pass. Ideal for duct panel preparation before forming.

Parameter	Value
Model	JXP-1.5×1300
Max Width	1300 mm
Material Thickness	0.4-1.5 mm
Functions	Beading + Leveling
Power	1.5 kW

Power slitting machine for cutting sheet metal into narrower strips. Essential for duct fabrication and metal processing with adjustable slitting width.

Parameter	Value
Model	LQ-15
Cutting Length	1300 mm
Material Thickness	0.3-1.5 mm
Slitting Width	Adjustable
Motor Power	0.75 kW
Speed	Adjustable

CNC plasma cutting machine for precision cutting of HVAC duct components, flat patterns, and custom metal shapes. Nesting software for material optimization.

Parameter	Value
Model	PC-1540
Cutting Area	1500×4000 mm
Material Thickness	0.5-20 mm (plasma)
Cutting Speed	Up to 8000 mm/min
Plasma Power	63A
Control	CNC with nesting software

CNC hydraulic seam locker with whisper-lock vertical version for high-precision, heavy-duty Pittsburgh seam closure. Handles heavier gauge material with programmable parameters.

Parameter	Value
Model	HF-1550
Material Thickness	0.5-1.5 mm
Max Duct Width	1550 mm
Seam Type	Pittsburgh / Whisper Lock
Power	3 kW
Operation	CNC Hydraulic

Pneumatic duct seam closer for rectangular and round duct. Consistent and airtight seam closure with adjustable pressure.

Parameter	Value
Model	HF-1250 / YJB-1250
Material Thickness	0.5-1.2 mm
Seam Type	Pittsburgh
Speed	15 m/min
Power	1.1 kW
Operation	Pneumatic

Compact Pittsburgh seam locker for closing longitudinal seams on rectangular duct. Affordable entry-level solution with bench-top design.

Parameter	Value
Model	L-12
Material Thickness	0.5-1.0 mm
Seam Type	Pittsburgh
Speed	10 m/min
Power	0.55 kW
Weight	120 kg

Pneumatic TDF corner making machine for fast, consistent corner crimping in high-volume duct fabrication shops. Foot pedal control for hands-free operation.

Parameter	Value
Model	PC-12
Corner Type	TDF
Operation	Pneumatic
Air Pressure	0.6-0.8 MPa
Cycle Time	2-3 sec
Control	Foot pedal

Portable hydraulic TDF corner crimping tool for on-site TDF corner fastening. Ideal for field installation and repair, no power supply needed.

Parameter	Value
Model	TDF-12
Corner Type	TDF
Operation	Hydraulic (manual pump)
Weight	12 kg
Application	On-site / Field
Features	Portable, no power needed

Complete angle iron flange forming line for producing angle steel flanges used in rectangular duct connections. Integrates rolling, punching and cutting.

Parameter	Value
Model	J-50
Angle Size	Up to 50×50 mm
Material Thickness	Up to 5 mm
Process	Rolling → Punching → Cutting
Operation	Automatic / Semi-automatic
Application	Angle steel flange production

Angle iron punching machine for flange hole punching. Simple and reliable operation for small to medium production volumes.

Parameter	Value
Model	J-50H
Angle Size	Up to 50×50 mm
Operation	Manual / Hydraulic
Punch Force	Hydraulic
Application	Flange hole punching

Electric decoilers for coil material handling in duct fabrication lines. Available in single and double station configurations with various weight capacities.

Parameter	Value
Coil Weight	5-7 tons (standard)
Inner Diameter	480-610 mm
Outer Diameter	Up to 1200 mm
Stations	Single / Double / Quad
Drive	Electric, frequency controlled

Range of portable duct fabrication tools for on-site work including portable seam lockers, corner crimpers, and hand tools. Ideal for field installation and repair work.

Parameter	Value
Types	Portable seam locker, corner crimper, hand tools
Power	Manual / Pneumatic / Battery
Weight	3-15 kg
Application	On-site duct fabrication and repair

Specialized production line for manufacturing fire dampers used in HVAC duct systems. Integrates forming, punching, and assembly for efficient fire damper production.

Parameter	Value
Model	FDL-1500
Max Damper Size	1500 mm
Material Thickness	0.8-2.0 mm
Process	Forming → Punching → Assembly
Application	Fire damper manufacturing
Control	PLC