Battery Manufacturing EquipmentKejing MSK-SFM-11 V-vessel dry-powder blender
The Kejing MSK-SFM-11 blends dry powders and granules by tumbling them in an unequal-height V-shaped vessel. The standard 2.5 L vessel typically holds 1000 g and turns at 20–90 rpm on a 24 V DC drive that can run inside an argon or nitrogen glovebox. It suits labs pre-mixing battery powders before further processing.
By Shenzhen Kejing Star Technology Company · MSK-SFM-11
Vessel sizes, speed and drive
Kejing lists a 2.5 L vessel that typically holds 1000 g of powder or granules, a speed of 20–90 rpm and a timer of 1–900 minutes. Smaller optional vessels hold 50 mL/20 g and 250 mL/100 g. The mass that tumbles well in practice depends on bulk density and fill fraction, so treat these masses as typical examples and check your own material.
The vessel is stainless steel with a 2.5-inch clamp-style feed port. A 110–240 V AC to 24 V DC adaptor powers the motor, and Kejing describes use in argon or nitrogen gloveboxes. Ask for oxygen and moisture limits and for approval to handle any reactive powder you plan to use.
| Parameter | Published value | Record status |
|---|---|---|
| Main vessel volume | 2.5 L | known |
| Rotation range | 20–90 rpm | known |
| Programmable duration | 1–900 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
Sample the whole blend
Send the powder types, size distributions, bulk densities, moisture sensitivity and any concerns about agglomerates. Agree the vessel fill and the charging order. Tumbling moves free-flowing powder around well; Kejing gives no figure for blend uniformity or for breaking up agglomerates.
Set sampling positions or discharge fractions and the analysis you will use to compare blend composition. Check for segregation after a stop, a transfer or discharge, because a mix that looks even can still vary. Kejing lists optional balls in several materials. If you plan to use them, define what they are for and set wear and contamination limits; results from high-energy ball milling are a different process, so compare like with like.
Glovebox fit and cleaning
Use the real machine and vessel dimensions to check your glovebox door or antechamber, working space, rotating clearance and the feed and discharge route. The machine is about 550×270×550 mm and 45 kg, which may be too large for some transfer chambers. Decide where the power adaptor sits and ask the manufacturer for its recommended safe drive layout.
Agree how leftover powder is recovered, how the vessel is cleaned between formulations and how carryover is checked. Ask about seals, clamp maintenance and safe access to the rotating vessel. Base acceptance on the chosen vessel, the fill and a measured blend result. Timer and speed settings alone tell you little about powder uniformity or later cell results.
Source references: s1
Questions that change the purchase
| Decision | What the catalogue says | Next step |
|---|---|---|
| Does your powder flow well enough to tumble? | The catalogue gives no blend-uniformity result. | Trial representative powders with a set sampling plan. |
| Will the machine fit your glovebox? | The catalogue gives about 550×270×550 mm and 45 kg. | Check transfer, rotation and working-space drawings. |
| Will balls change contamination or particles? | The catalogue lists optional ball materials with no process data. | Define their role and measure wear and particle effects. |
Prepare the supplier conversation
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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-SFM-11 V-vessel dry-powder blender original equipment description
Shenzhen Kejing · Manufacturer-origin source
Kejing's description of the MSK-SFM-11, with vessel sizes, typical loads, speed, timer, drive, glovebox use, size and weight.
Archived source check: 2026-10-11
s2 · Official equipment catalogue with model links
Shenzhen Kejing · Manufacturer-origin source
Kejing's catalogue with links to its powder and slurry mixers.
Archived source check: 2026-10-11
Still to confirm
- Blend uniformity on your powders at your fill level.
- Oxygen and moisture limits for glovebox use.
- Whether the machine passes through your antechamber.
- Wear and contamination if optional balls are used.
Dry blending of battery powders, including inside gloveboxes
- Powder sizes, densities, chemistry and moisture sensitivity
- Vessel size, fill fraction, speed and time
- Blend sampling and segregation after transfer
- Glovebox dimensions, atmosphere and power layout
- Ball use and materials, contamination limits
- Powder recovery, cleaning and formulation change