Battery Manufacturing EquipmentKejing MSK-111A-CRM sheet-electrolyte/Z-fold stacker
The Kejing MSK-111A-CRM stacker builds cores either by Z-folding a roll separator or by stacking separator or electrolyte sheets. It feeds electrodes, applies tape and buffers finished cores. Kejing lists it for lithium-ion, lithium-metal and solid-state cells. Stacks run 50–160 mm long and up to 20 mm thick.
By Shenzhen Kejing Star Technology Company · MSK-111A-CRM
Stack size, alignment and the 3 s figure
Kejing lists stack lengths of 50–160 mm, widths of 40–100 mm at the tab edge without tabs, and thickness up to 20 mm. Relative electrode position is held to ≤±0.5 mm. Standard tooling is 4662; other sizes are custom. The figure of about 3 s/piece covers stacking motion alone and leaves out preparation, so full cores per minute will be lower.
Listed functions include a CCD for size checks and position correction, checks for missing sheets and double picks, separate positive and negative handling, static removal, separator cutting, taping and a buffer up to 150 mm high. An internal vacuum generator reaches better than −50 kPa, with no detail on how vacuum is sensed under load. Ask for the delivered sequence and the detection method for each fault type.
| Parameter | Published value | Record status |
|---|---|---|
| Stack-length range | 50–160 mm | known |
| Tab-edge width excluding tabs | 40–100 mm | known |
| Relative electrode-position statement | ≤±0.5 mm | known |
| Stacking-motion-only time | ≈3 s/piece | 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
Trial your own electrolyte sheets
Send the electrode, separator and electrolyte-sheet dimensions, thickness and fragility, and the exact layer order. Set limits for suction and contact marks, static effects and cross-contamination. Kejing describes soft suction nozzles and separate handling for each material; damage and contamination on a new lithium-metal or solid electrolyte sheet have to be measured on your parts.
Watch the full sequence with representative material. Check that one sheet arrives at a time, then check alignment and layer count on finished cores. Agree safe double-sheet and missing-sheet test cases with the manufacturer. Specify the CCD defect and size limits and what happens when a result is uncertain. Count accepted full cores under these checks to get a real output figure for stacking.
Taping, buffer count and handover to the next step
Define the tape position, how the separator ends and what a finished core looks like. Agree the buffer capacity as a number of cores at your actual thickness, plus how each core keeps its identity when it moves to the next station. A 150 mm buffer height holds far fewer than 150 cores, and pouch loading after taping is a separate step.
Handover should cover vacuum and nozzle wear, sheet and static cleaning, tool and recipe changeover, guarding and recovery after a stop partway through a layer. The machine is about 1900×1050×1900 mm and 1000 kg, on 6.5 kW AC220 V with 0.4–0.8 MPa air. Kejing gives no measured double-pick rate, solid-state test result or finished-cell performance.
Stacks then go to tab joining on a welder such as the Kejing D800W ultrasonic welder, and the page on factory and site acceptance covers checking stack alignment.
Source references: s1
Questions that change the purchase
| Decision | What the catalogue says | Next step |
|---|---|---|
| Does 3 s/piece include preparation and taping? | The catalogue limits the 3 s figure to stacking motion. | Measure the full accepted-core sequence. |
| Can your electrolyte sheet be picked intact? | The catalogue names the material routes but gives no damage results. | Trial representative sheets with single and double-pick checks. |
| How many cores fit the buffer? | The catalogue lists a 150 mm buffer height. | Set buffer occupancy and core identity for your finished thickness. |
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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 · Kejing MSK-111A-CRM sheet-electrolyte/Z-fold stacker original specification
Shenzhen Kejing · Manufacturer-origin source
Kejing's specification for the stacker, with stack sizes, alignment, speed, detection functions, buffer, vacuum and services.
Archived source check: 2026-10-11
s2 · Official current equipment catalogue
Shenzhen Kejing · Manufacturer-origin source
Kejing's current catalogue listing its winding and stacking machines for lab and pilot cells.
Archived source check: 2026-10-11
Still to confirm
- Handling damage and contamination on your electrolyte or separator sheets.
- Double-pick and missing-sheet detection rates on your material.
- Accepted full cores per hour, preparation and taping included.
- How many of your finished cores fit the 150 mm buffer.
Z-fold and sheet stacking for lithium-ion, lithium-metal and solid-state cores
- Electrode, electrolyte and separator properties, layer order
- Stack and tab drawing, 4662 or custom tooling
- Suction and static handling, damage and contamination
- CCD size and position, missing and double-sheet cases
- Full-core alignment and count, tape and buffer transfer
- Vacuum and nozzles, recipe change and mid-layer recovery