Battery Manufacturing EquipmentGeesun GWDL/GWFL laser tab-forming and slitting family
Geesun's GWDL and GWFL laser-cut tabs along calendered electrode rolls and then slit each roll into two lanes with a blade. GWDL takes 120–500 mm rolls at ≥120 m/min, and GWFL takes 150–600 mm rolls at ≥90 m/min. Both list tabs up to 35 mm high and a heat-affected zone of ≤80 µm.
By Shenzhen Geesun Intelligent Technology · GWDL / GWFL
Roll widths, cutting speed and tab limits
Geesun lists GWDL for incoming widths of 120–500 mm and GWFL for 150–600 mm, both with 0.2 mm width tolerance. Each takes rolls up to 700 mm in diameter on a 3- or 6-inch core. The table gives a laser cutting speed of ≥120 m/min for GWDL and ≥90 m/min for GWFL. The introduction mentions 120–200/min with unclear units, so ask Geesun to state the speed for your chosen model and material.
Both models list tab height ≤35 mm and a heat-affected zone ≤80 µm. Another row, labelled 范材区切割/分条质量, gives ≤7 µm in the lengthwise direction. Ask whether that figure is burr height or a different edge measure, and how it is measured. The introduction also gives tab-pitch accuracy of ≤±0.1 mm; ask for the sampling method and material behind it.
| Parameter | Published value | Record status |
|---|---|---|
| GWDL / GWFL incoming width | 120–500 / 150–600 mm | known |
| Tab height limit | ≤35 mm | known |
| Claimed heat-affected region | ≤80 µm | known |
| GWDL / GWFL table cutting speeds | ≥120 / ≥90 m/min | known |
Catalogue values apply to the configuration and test method the maker states. Ask for the values that apply to your configuration.
Source references: s1
Laser tab cutting and blade slitting each need their own checks
The machine combines laser tab forming with mechanical slitting. Send the collector and coating build, tab pitch and shape, lane-width drawing and edge-quality limits. Ask how the heat-affected zone is measured, how tabs are inspected and what the 7 µm lengthwise row covers. Write the agreed measuring method into the contract with any burr limit.
Geesun describes variable tab cutting, automatic lane separation and closed-loop slit-width detection. Ask what adjusts automatically, who can approve recipe changes and which tolerances hold during acceleration or after a splice. Width control covers one dimension; check the laser-cut tab and the slit edge against your own defect limits as well.
Dust control, inspection and the sample run
Geesun describes system dust extraction, no build-up in the cutting zone and online checks of electrode and tab quality and size. The page gives no contamination limit, extraction capacity or detector coverage and false-reject rate. Ask for the extraction and collection layout, the inspection points and the reject sequence, including the path for material bound for cell cores. Geesun also mentions cutting with no waste edge; check that against your tab pattern and nesting.
Plan a trial with your coated electrode at the quoted speed and collect samples through the run, stops and changeovers. Agree limits for tab shape, registration, heat-affected zone, edge defects and cleanliness, together with good material output. At handover, record the model supplied, laser and blade consumables, calibrated inspection references, recipe backup and lock-out procedures for the laser and the blades. Cell yield follows later, from your own line.
Source references: s1
Questions that change the purchase
| Decision | What the catalogue says | Next step |
|---|---|---|
| Which speed applies to the selected configuration? | The table gives ≥120 m/min for GWDL and ≥90 m/min for GWFL; the introduction says 120–200/min. | Get a signed GWDL or GWFL specification for your material. |
| What does the longitudinal 7 µm row measure? | The row label does not say whether it is burr height. | Agree the defect definition, reference and sampling method. |
| Does inspection cover both laser tabs and slit edges? | The machine combines laser tab cutting and blade slitting. | Trial the full material path and check reject handling. |
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Sources and check dates
The maker's own pages and public records used for this page, each with the date it was checked.
s1 · Geesun GWDL/GWFL laser tab-forming and slitting family original rendered equipment description
Geesun · Manufacturer-origin source
Gives widths, roll and core sizes, cutting speeds, tab height, heat-affected zone and edge figures for GWDL and GWFL.
Archived source check: 2026-10-11
s2 · Official process-specific equipment catalogue
Geesun · Manufacturer-origin source
Places the tab formers ahead of Geesun's winding and stacking machines.
Archived source check: 2026-10-11
Still to confirm
- The cutting speed for your model and material, given the unclear 120–200/min wording.
- What the ≤7 µm lengthwise quality row measures and how.
- Laser power and the materials the machine has been set up to cut.
- Detector coverage and the dust and particle limits Geesun will accept.
Laser tab cutting and blade slitting of electrode rolls
- Collector and coating specification, lane and tab-pattern drawings
- GWDL or GWFL model, roll and core size and width tolerance
- Speed for your material, tab pitch and height limits
- Heat-affected zone and lengthwise edge-quality definitions
- Extraction, particle limits and online-inspection coverage
- Splicing, changeover, good output and laser and blade service