Hebei Juliang Technology Co., Ltd. is one of the leading manufacturers and suppliers of Water‑Cooled Handheld Fiber Laser Welder in China. Please feel free to buy CE approved machinery made in China here from our factory. All customized machines are with high quality and competitive price.

What happens when your welder burns a hole through a 1.5mm stainless tube?
It's frustrating, right? You waste material, you waste time grinding it down, and the finished product looks sloppy. We built this water-cooled handheld unit specifically to end those headaches. At its core, it's a fiber laser source (ranging from 800W to 3000W) housed in a portable chassis that's connected to a water chiller. The main advantage over traditional TIG or MIG is speed and control. Because the energy is so tightly focused, you spend less heat on the metal, which means your thin aluminum or stainless sheets won't warp during fabrication. We engineered this Compact Air-Cooled Laser Welding Machine so that the operator feels less fatigue; the gun is balanced, and the heavy components stay on the floor.

The Material Logic: Picking the right tool for stainless and aluminum

Let's talk about why this handles tricky alloys so well. Welding aluminum is a nightmare for many lasers because the surface is highly reflective. The beam just bounces off if the focus isn't right. We solved this by using a high-end WSX LCN03A welding head. It gives you adjustable spot size control, which helps "bite" into the shiny surface instead of sliding off. For stainless steel, the problem is usually heat distortion. Since the water-cooling keeps the laser source running at a stable temperature, your penetration depth remains consistent throughout a long seam. You don't get the ugly "drop through" at the end of the weld bead. Our team has run thousands of test welds on these materials to tune the optics just righ

A Real-World Fix: Saving a Fence Manufacturer's Time

One of our recent clients runs a workshop that produces commercial metal railings and fences (similar to the tube structures you see in our photos). They were using MIG welding for galvanized square tubes, but the spatter was terrible, and the galvanized coating was burning off, leaving ugly rust spots that required extra painting.

We rolled our 1500W unit onto their production floor for a trial run. By switching to the laser, the heat-affected zone dropped drastically. We were able to weld the corners of the railings with a clean, "fish scale" finish that required almost zero post-grinding. It reduced their cycle time per frame by nearly 40%. Even better, because the heat was so localized, the galvanized layer on the rest of the tube stayed completely intact. That saved them an entire painting step.

Installation, Maintenance, and the Production Flow

Setting this up doesn't require a PhD in engineering. It usually takes a couple of hours: you connect the power, hook up the water lines for the chiller, and attach the gas nozzle (argon or nitrogen). Here's the honest part about maintenance: You will replace protective lenses and nozzles. These are consumables. We send you a starter kit, but you should order spares. Our after-sales team is available for 24/7 remote video support. If you run into a fault, we don't leave you guessing; we walk you through the diagnostic steps live.

How the machine is born (Juliang's Production Standard):

Raw Material: Heavy-duty steel plates cut for the chassis.

Frame Welding: Built on precision jigs to ensure alignment.

Stress Relief: Heat treated to prevent future cracking.

Machining: Using our own gantry mills for accurate base plate flatness.

Assembly: We integrate the Raycus source, the water pump, and the controller.

Burn-in Testing: Every single unit runs at max power for hours before packing to guarantee it's ready to work.

Shipment: Securely crated for sea or air freight.

Specs and Configuration Guide

The chart below shows the maximum single-pass penetration we've achieved in our test lab. If you need to weld thicker material than listed, you'll need a multi-pass technique.

Laser Power	Carbon Steel (Max Pass)	Stainless Steel (Max Pass)	Aluminum (Max Pass)	Galvanized Plate (Max Pass)
800W	3mm	3mm	2mm	2mm
1200W	4mm	4mm	3mm	3mm
1500W	5mm	5mm	4mm	4mm
2000W	6mm	6mm	5mm	5mm
3000W	8mm	8mm	6mm	6mm

1. What exactly makes this different from a standard TIG welder?
It's the heat input. A TIG torch keeps the arc burning, slowly heating the surrounding metal. This laser fires a focused beam that melts the joint instantly and stops. This means your 1mm stainless sheet stays almost perfectly flat, where TIG would warp it. It's also roughly 2-3 times faster.

2. Does this use any filler material, or does it just fuse the edges?
You use a manual filler rod that you dip into the weld pool. It's similar to the TIG technique, where you hold the rod in one hand and the gun in the other. We find that using a 308L rod for stainless steel or 4043 for aluminum gives the best, strongest finish.

3. I'm a beginner. How long until I can make a good-looking weld?
We provide remote video training during the installation. Give yourself about 2 days of practice. The first dozen beads might look rough, but once you get a feel for how fast the laser moves, you'll be producing consistent welds by the end of the week. It's easier than TIG because you don't have to manage a foot pedal for current.

4. What is the single most important daily maintenance step?
Check the water level in the cooler. Running the machine with low coolant will burn out the expensive laser source within an hour of heavy use. Also, check the protective glass on the welding head for spatter. If it's cracked, the beam scatters and loses penetration power.

5. Can this weld galvanized steel for outdoor furniture?
Yes, and it does a better job than MIG for this purpose. Because the laser heat is so localized, you don't burn off the zinc coating as aggressively. This means the rust protection of the galvanized material stays intact right up to the weld edge, which is a massive advantage for outdoor frames and fences.