Laser Welding Machine LW Series
Last updated: October 14, 2026
Fiber laser welding machine for high-precision welding of duct components. Handheld or automated configuration, 1500W to 3000W laser power — for the welded joints that TIG cannot keep up with.
Technical Specifications
What is a Laser Welding Machine LW Series?
A fiber laser welder fuses metal with a focused laser beam instead of an arc. The narrow, high-energy beam penetrates quickly with low total heat input, so welds are fast, distortion is minimal, and thin stainless and aluminum join cleanly. Handheld units bring that speed to fitting and assembly work; automated units weld production seams and components.
Key Features
- Fiber laser powers from 1500W to 3000W across three models
- Handheld or automated configuration to suit your parts
- High-precision welds on steel, stainless steel and aluminum
- Fast, low-heat-input welding with minimal distortion
- The productivity step up from TIG for volume welded work
TIG Welding Too Slow for the Volume of Welded Work Coming In?
TIG is a skilled, slow craft — every joint is hand-guided filler, and on thin stainless the heat input warps what you just welded. When welded work stacks up, either it waits or you add welders.
A fiber laser welder joins the same materials several times faster with less distortion — one operator covers the work of several TIG stations, and thin stainless stops moving under the beam.
How It Transforms Your Production Line
The Laser Welding Machine LW Series works on a proven principle — here is the step-by-step workflow that makes it possible:
Joint Preparation
Edges are prepared and fitted; no filler wire is needed for most autogenous laser welds.
Beam Setup
Laser power and travel parameters are set for the material and thickness — handheld or automated head as configured.
Fused Weld
The beam fuses the joint with low heat input; travel speed keeps distortion minimal on thin sections.
Inspection & Next Joint
The weld cools fast enough to handle almost immediately — on to the next joint or station.
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 | Fiber laser source with parameter control | 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 |
|---|---|
|
✕ TIG throughput
Skilled hand-guided arc welding caps output |
✓ Laser travel speed
Several times faster joint completion per operator |
|
✕ Thin-gauge distortion
TIG heat input warps thin stainless |
✓ Low heat input beam
Minimal distortion, parts stay true |
|
✕ Filler and cleanup
TIG needs filler wire and post-weld cleanup |
✓ Autogenous welds
Most joints need no filler, minimal cleanup |
|
✕ Welder shortage
Skilled TIG welders are scarce and costly |
✓ Faster learning curve
Operators reach production speed quickly |
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:
Round Duct Seams
Weld longitudinal and fitting seams on spiral and welded duct faster than arc processes.
Kitchen Exhaust Fabrication
Thin stainless exhaust duct welded fast, flat and clean.
Clean Room & Pharma
Precision low-distortion welds on stainless systems.
Fitting & Assembly Work
Handheld unit goes where the part is — fittings, corners and repairs.
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
Related Products
Buying Guides for This Machine Type
Before you request a quote: how this machine class compares, what it costs, and how to size it for your production volume.
Duct Welding Machine Guide: Spot vs Longitudinal vs Laser
Spot, longitudinal seam and laser welding compared for duct work — technology, speed and cost.
Read the guide → GuideGalvanized vs Stainless Steel Duct Guide
When stainless is specified — and the welding equipment it needs.
Read the guide → GuideDuct Leakage Testing Guide
Verifying that your welded joints actually hold — classes, methods and acceptance criteria.
Read the guide →
