Anhui Preda Machinery Manufacturing Co.,Ltd.

--- Auto duct line, spiral tubeformer and relavant duct machines.

Super Auto Duct Line 5Auto Duct Line 5 UAuto Duct Line 5Auto Duct Line 4Auto Duct Line 3Auto Duct Line 2Cut to Length LineDuplex Flange FormerTDF Flange FormerTDC flange forming machinePittsburgh lock formerS cleat lock formerSnap lock formerRound duct lock formerLock forming machineDecoilerDuct Beading machineDuct slitter and beaderElectrical ShearerManual FolderPneumatic FolderAir seam lockerPortable seam lockerPower FastenerHydraulic seam lockerHydraulic GuillotinePneumatic Corner MaticsCNC Press BrakeDrive cleat benderSpiral tube former PD1602Spiral Tubeformer Mould Type PD1500Spiral Tubeformer Band TypeOvalizer Oval MachineHydraulic elbow making machineSpiral Duct LineHydraulic gorelockerElectric GorelockerPlasma Cutting MachineElectrical Rolling MachineElectric Rotary GrooverRound duct welderAngle iron Flange LineAngle Iron RollingTiltable Power PressHeavy Rolling MachineSuper Auto Duct Line 5Duct Line U 5Duct Line 5Duct Line 4Duct Line 3Duct Line 2Cut to length LineAutomatic Duct LineDuplex TDF Flange MachineTDF Flange MachineTDC flange forming machineLock FormerDecoilerTDF Folding MachinePneumatic TDF Folding MachineBeading MachineSlitting MachineElectric Shearing MachineLock Seaming MachineElectric Lock SeamerCorner MaticsHydraulic CNC GuillotineHydraulic CNC Press BrakeSquare Duct MachinesMould Spiral TubeformerBand Spiral TubeformerOvalizerSpiral TubeformerHydraulic gorelockerElectric GorelockerElectric Rotary Beading MachinePunching MachinePlate Rolling MachineAngle Iron Rolling MachinePlasma Cutting MachineRound Duct MachinesPittsburgh Seam CloserElbow gorelockerMessage & Free QuoteAbout UsAgents Wanted by PredaPreda Machine FactoryMachine Working VideoShipment VideosCompany NewsIndustrial News
Catalog download
auto duct lines.pdf
Prev 1 Next
square duct making machines.pdf
Prev 1 Next
round duct making machines.pdf
Prev 1 Next
Portable Duct Machines.pdf
Prev 1 Next
Product Detail

Preda Machine duct slitter is capable of both beading and slitting function in one machine

Brand: Preda
Model: LJJ-12
Stock: 15SETS
Specification: 1.2mm capacity

Preda Machine duct slitter is capable of both beading and slitting function in one machine!
It is equipped with two sets of moulds for beading and slitting.
Its size is not big which is very easy to take to working site for duct-works.
Power with 1.5kw motor makes it functioning fast and easy!

Sheet thickness(mm)
Power (kW)
Weight (kg)
Dimension L*W*H (mm)
Hook slot,Shearing board

Main Features

1) Small and mobile machine.
2) Only one person can operate, it don't need a lot of people to operate.
3) More functions, suitable for the HVAC duct production requirements.
4) The machine is widely used, and one machine can be used for many years.
5) Suitable for 0.4-1.2mm galvanized steel coil, can be successful at one time.

Detailed Images

Shear wheels

All the wheels are made of good steel and processed by CNC. Also harden the hardness of the wheel by quenching. Increased its own use time. Let your satisfaction be our greatest pursuit. It can shearing better.

Hook grooved wheel

All the wheels are made of good steel and processed by CNC. Also harden the hardness of the wheel by quenching. Increased its own use time.

Let your satisfaction be our greatest pursuit.

Positioning ruler

It used to control the width of the sheet and allow the sheet to walk straight.

Hand wheel

Adjustable handwheel   to make the groove of the hook meet production requirements.

Our Company
Our Service

Pre-Sales Service

* Inquiry and consulting support.

* Sample testing support.

* View our Factory.

After-Sales Service

* Training how to instal the machine, training how to use the machine.

* Engineers available to service machinery overseas.

Packing & Delivery
According to the size of the machines
According to the weight of the machines

Packaging Details

The normal package is wooden box(Size: L*W*H). If export to european countries,the wooden box will be fumigated.If container is too tigher,we will use pe film for packing or pack it according to customers special request.
According to the number of machines
According to the number of machines

Packaging Details

If the number of machines exported is relatively large, we will arrange the container to be packaged and exported to some European countries. Container packaging will also be preferred in view of transportation issues.

1.Are you factory or foreign trade company?
We are the manufacturer and do our own exporting team for more than 15 years' experience.

2.How can we operate the machine?

Our machines are very easy to operate.We have detailed installation and operating instructions attached.
We will arrange our engineers available to service machinery overseas for HVAC duct production lines.

3.How long warranty can you provide?
Our machine warranty is one year and life time service after sales.

4. What are your payment terms?
We support T/T, L/C, Western Union and so on. Other ways can also be received after we both sides discussion and agreement.

Related Products

Pittsburgh Lock Former

91.8% Response Rate

Duct Beader

91.8% Response Rate

Auto Duct Line 3

91.8%Response Rate


Duct Beading and duct slitter or duct groove and shear machine with grooving and shearing function together,

specially designed for duct forming!

Just need to change the mould when you want to use its certain function.

Beading and slitter machine

 China's competitive HVAC duct forming machine manufacturer---Preda Machine!

Attached video link.:

leave a message
back to the top