Cut To Length Line AML-1
Last updated: October 14, 2026
Cut To Length Line (AML-1), also known as Auto Duct Line 1. Feeds galvanized coil, levels the strip and shears it to precise blank lengths — the first station of any coil-fed rectangular duct production line.
Technical Specifications
What is a Cut To Length Line AML-1?
A cut to length line is the entry station of a coil-fed duct production line. It takes a galvanized or stainless steel coil, decoils it, levels the strip to remove coil set, and shears it into flat blanks of exact length — ready for the next station (lockforming, flange forming or beading). In the PREDA AML series it is the base unit: every higher auto duct line is built on the AML-1 chassis.
Key Features
- Electric decoiler with 4 sets of rollers, driven by independent frequency-controlled motors
- Multi-functional main body: leveling, beading and notching (sharp and TDF)
- Hydraulic shear to length with programmable cutting
- Mitsubishi PLC control system with Mitsubishi/Siemens electricals
- Compact footprint — the same 1900mm line length as AML-2
- Upgradeable to Auto Duct Line 2, 3, 4 or 5 as your shop grows
Still Cutting Blanks by Hand and Wasting Coil Ends?
Manual coil handling is slow, dangerous and wasteful. Two operators wrestle a 7-tonne coil, the strip comes off with a curve, and every blank is measured and marked by hand — so length tolerance drifts through the shift and your offcuts pile up.
The AML-1 automates the whole front end of your line: powered decoiling, precision leveling, and hydraulic shear-to-length at 15 m/min. Blanks come out square, consistent and ready for the next station, with one operator instead of two.
How It Transforms Your Production Line
The Cut To Length Line AML-1 works on a proven principle — here is the step-by-step workflow that makes it possible:
Coil Loading
The 7-tonne coil is loaded onto the motorized decoiler. Four sets of rollers, each on an independent frequency-controlled motor, keep strip tension constant from the first metre to the last.
Leveling & Beading
The multi-functional main body levels the strip to remove coil set. The same body can bead and notch (sharp notching and TDF notching) when you run the AML-1 in a fuller configuration.
Measuring & Shearing
The Mitsubishi PLC measures the fed length and triggers the hydraulic shear. Programmed lengths repeat to the millimetre all shift long — no tape measures, no chalk marks.
Blank Output & Upgrade Path
Finished blanks discharge ready for lockforming or flange forming. When volume grows, the AML-1 chassis accepts the leveling, grooving and notching modules of Line 2 and beyond — your investment carries forward.
Technical Specifications & Performance Data
Every specification on this machine is chosen for a reason. The table below shows not just the numbers, but what each one means for your daily production:
| Parameter | This Machine | What It Means for You |
|---|---|---|
| Control System | PLC with touchscreen (Mitsubishi) | Consistent, repeatable operation with minimal operator training |
| Construction | Heavy-duty steel frame | Vibration-free operation, 10+ year service life |
| Certification | CE certified | Meets European safety and quality standards |
| Warranty | 2 years | Peace of mind with comprehensive factory warranty |
Problems Solved: Before vs. After
We asked HVAC fabricators about their biggest production headaches. Here is how this machine directly addresses each one:
| Without This Machine | With This Machine |
|---|---|
|
✕ Inconsistent blank lengths
Hand-measured blanks drift through the shift, joints leak |
✓ Programmable shear-to-length
PLC-measured blanks repeat to the millimetre, shift after shift |
|
✕ Coil set and curved strip
Unleveled strip feeds warped panels into every downstream station |
✓ Powered leveling in the main body
Flat strip every time — downstream seams and flanges fit first try |
|
✕ Two operators per coil
Manual decoiling needs muscle and constant attention |
✓ Motorized decoiler, 7T capacity
One operator supervises; frequency-controlled tension is automatic |
|
✕ Scrap from bad measurements
Every mis-cut blank is a full sheet of galvanized steel in the bin |
✓ Exact program lengths
Offcuts drop to the coil-end remainder, material waste down |
Where It Fits in Your Factory
This machine is versatile enough to serve multiple production scenarios. Here are the most common configurations our customers use:
New Duct Shops
The AML-1 is the most affordable way into coil-fed production — automate blank cutting before you commit to a full line.
Growing Workshops
Start with AML-1 today; add leveling, grooving and notching modules later to reach Line 2, 3, 4 or 5 capability without replacing the base machine.
Line Retrofit
Existing shops running manual shears bolt the AML-1 in front of their lockformers to feed consistent blanks at line speed.
Export Fabricators
380V/50Hz standard build with CE certification ships ready to run; voltage and frequency customized for your grid.
Frequently Asked Questions
Click each question to see the answer. These are the questions our sales engineers hear most often:
Professional Packaging & Global Shipping
Every machine is professionally packaged and secured in a container for safe delivery to your port. We send you loading photos before the ship sails.
Calculate Your Return on Investment
Based on average industry data, here is what a typical customer saves after installing this machine:
* Figures based on average customer data for a shop producing 100-500 bends per day. Your actual results will vary based on production volume, labor rates, and current efficiency levels. Contact our engineers for a customized ROI calculation based on your specific operation.
Ready to Upgrade Your Electric Production?
Get a customized quote within 24 hours. Our engineers will help you configure the right machine for your specific production requirements.
WhatsApp / WeChat: +86-18355321923 | Email: jason@predamachine.com
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