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FSW-BL3020 Large Gantry Friction Stir Welding Machine for EV Battery Trays & Chassis

The FSW-BL3020 is a large-format gantry FSW machine, engineered to weld oversized EV aluminum parts such as battery trays, chassis bases, and structural frames. Its expanded worktable and long-axis travel provide unmatched versatility, making it the go-to solution for automotive suppliers producing large and heavy-duty components.
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Industry Pain Points We Solve



Automotive suppliers welding large aluminum structures face challenges like:


❌ Thermal distortion on large EV trays and chassis caused by MIG/TIG processes.

❌ High rework costs due to poor consistency across oversized workpieces.

❌ Limited machine capacity when conventional welders can’t handle large sizes.


The BL3020 eliminates these bottlenecks with a wide work envelope, gantry rigidity, and precise process monitoring, enabling defect-free welds on large EV aluminum structures.


Product Overview


The FSW-BL3020 combines large-format capacity with high rigidity and intelligent automation. Its 3000mm × 2000mm worktable accommodates the full range of EV battery trays and chassis parts, while maintaining accuracy and stability across the welding path.


Applications


EV Battery Trays (Large Format) – Defect-free welding for oversized trays.

Automotive Chassis & Subframes – Stable joining of structural aluminum parts.

Battery Cooling Plates (Multi-unit Production) – Large table enables batch welding setups.

Large Castings & Heavy-duty Components – Suitable for high-strength, wide-span structures.


Key Features


Large Work Envelope (3000 × 2000mm) – Designed for oversized EV parts.

Universal Versatility – Handles a broad range of automotive aluminum assemblies.

High Rigidity Gantry – Ensures stable and consistent welding.

3T/6T Head Options – ≤10mm and ≤20mm weld depths for different EV part requirements.

Intelligent Monitoring System – Real-time quality control and process data collection.

Cost Efficiency – Reduces scrap and rework costs for large-scale production.


Technical Highlights


Workbench size: 3000 × 2000mm

XYZ travel: 3000 × 2000 × 500mm

Gantry pass width: 2400mm

Z-space: 870mm

Spindle speed: ≤4000 rpm

Positioning accuracy: 0.05mm/m

Welding depth: ≤10mm (3T) / ≤20mm (6T)

Welding force: 30kN / 60kN

Power: 25kW / 30kW

Weight: ~15t


Name FSW-BL3020

Technical Index

Workbenches

T-shaped groove/M16 matrix threaded hole

Equipment footprint 

About 7500x3460x3200mm

Z-direction space

(From the lower end face of the spindle to the upper surface of the worktable)

870mm/840mm*

Longmen Pass Width

2400mm

Workbench size

3000mm(X)×2000mm(Y)

XYZ axis travel

3000x2000x500mm

B-axis travel

0°~+5°  (Manually adjustable)

C-axis travel

±360°

X-axis movement speed

0- 10000/6000*mm/min

Y-axis movement speed

0- 10000/6000*mm/min

Z-axis movement speed

0-5000/3000*mm/min

C-axis speed

20rpm

Spindle speed

≤4000rpm/3000rpm*

X-axis positioning accuracy

0.05mm/m

X-axis repeat positioning accuracy

0.03mm/m

Y-axis positioning accuracy

0.05mm/m

Y-axis repeat positioning accuracy

0.03mm/m

Z-axis positioning accuracy

0.03mm/m

Z-axis repeat positioning accuracy

0.03mm/m

Total weight of equipment

About 15t

Total power of equipment

About 25kW/30kW*



Why Choose FSW-BL3020?


Best for Large EV Parts – Specially optimized for trays, chassis, and subframes.

High Versatility – Suitable for both structural and cooling system components.

Reduced Scrap on Large Workpieces – Precision gantry ensures consistent weld paths.

Automation Ready – Seamless integration with robotic or CNC production lines.

Trusted by Automotive OEMs – Already applied in EV battery and chassis manufacturing.


FAQ

Q1: What EV parts are best suited for the BL3020?

A1: Large battery trays, chassis frames, and subframes that require wide-span welding.


Q2: How does BL3020 reduce rework?

A2: Its large gantry and precision mechanics ensure consistent weld paths even across oversized workpieces.


Q3: What are the welding depth options?

A3: ≤10mm with 3T head, ≤20mm with 6T head.


Q4: Is BL3020 compatible with automation lines?

A4: Yes, it supports robotic arms, CNC systems, and integrated automotive production setups.


Call to Action (CTA)

Request a Quote for High-Capacity EV Battery Tray Welding with the FSW-BL3020

Contact us today to discuss large-scale automotive welding projects.


FSW-BL3020

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Landline: +86-769-8278-1216
E-mail: brad.wang@alcu-fsw.com
              zoey.zhang@alcu-fsw.com
Phone: +86-156-3608-6589 
             +86-135-4472-5331
Add: Buliding C, Jinshi Technology Park, Dalingshan Twon, Dongguan, Guangdong, China
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