Core Technology & Working Principle
Immersion grinding changes where the work happens. Where a horizontal bead mill pumps product through a closed chamber, a basket mill brings the chamber to the product instead. That single difference decides which batches suit a basket mill and which do not, and it explains both the advantages and the limits below.
▲ Basket as the Grinding Chamber
The slotted basket holds the grinding beads and rotates the bead mass against itself. Material enters through the basket slots, is sheared between beads, and exits through the same slots by the pumping action of the rotating assembly. Because the beads stay inside the basket, there is no screen to block and no mechanical seal to flush.
▲ Dispersion Disc Above the Basket
The upper disc pre-disperses the powder into the vehicle while the basket handles fine grinding, both on the same shaft. Wetting and size reduction therefore happen in one tank in one pass rather than in two machines with a transfer step between them.
▲ Hydraulic Lift and Vessel Mobility
The column raises the basket clear of the tank rim so the vessel can be wheeled out and replaced. One basket mill can serve several tanks in a job shop, which is the main reason batch plants choose it over a fixed horizontal mill for multi-product production.
Precision Engineered Details
These are the parts that decide whether a basket mill suits a product line, and they are the parts an operator touches every shift. Each one is machined in the same Wuxi plant as the frame and the hydraulic set, alongside the high speed disperser frames that often feed this machine upstream.
PZM Series Technical Parameters
Seven standard frames cover 30 to 1,500 L of tank capacity. Motor power ranges from 4 kW on the PZM50 to 45/55 kW on the PZM1500, and maximum shaft speed falls from 1,500 rpm on the small frames to 1,000 rpm on the large ones as basket volume grows.
| Model | Motor Power (kW) | Basket Volume (L) | Tank Capacity (L) | Hydraulic Lift (mm) | Max Speed (rpm) |
|---|---|---|---|---|---|
| PZM50 | 4 | 3 | 30 ~ 100 | 400 | 0 - 1500 |
| PZM100 | 7.5 | 10 | 50 ~ 200 | 500 | 0 - 1500 |
| PZM200 | 11 | 15 | 100 ~ 300 | 700 | 0 - 1300 |
| PZM300 | 15 | 15 | 200 ~ 400 | 900 | 0 - 1300 |
| PZM500 | 18.5 / 22 | 20 | 300 ~ 500 | 1200 | 0 - 1100 |
| PZM1000 | 30 / 37 | 30 | 500 ~ 1000 | 1200 | 0 - 1000 |
| PZM1500 | 45 / 55 | 40 | 1000 ~ 1500 | 1400 | 0 - 1000 |
Reference projects in your industry are available on request.
Our Manufacturing Advantages
🏢 Direct Source Factory
Shanghai Polyc Technology Co., Ltd. is not a reseller. Every PZM basket mill is machined, assembled and tested at our Wuxi plant, so you buy at the factory price and speak directly to the engineers who built it.
✈️ 30–45 Days Fast Delivery
Standard models ship in 30–45 days from confirmed drawings, thanks to our integrated vertical in-house production lines.
🛡️ Strict Quality Control
Key welds, seals and running accuracy are inspected before assembly, and each machine is run at the factory before packing.
🔧 3-Year Global Warranty
Every unit is covered for three years, with remote video support and spare parts stocked for dispatch worldwide.
Target Application Spectrum
A basket mill earns its place wherever batches change often and volumes are moderate. Where one product runs for weeks at a time, a horizontal chamber fed by a pump usually wins on throughput.
Pigment Pastes and Colorants
Wetting and grinding pigment into a vehicle in one tank, with the basket lowered into the same vessel used for let-down.
Solvent and Water-Based Inks
Grinding ink concentrates where a screen blockage on a horizontal chamber would otherwise stop the line for a bead change.
Paints and Coatings
Small to medium paint batches, especially where the same mill serves several products and several tanks.
Multi-Product Job Shops
One basket serving several vessels, because the head lifts out and the tank rolls away.
Specify a PZM Basket Mill for Your Batch
Send us the pigment or filler type, the target fineness and the batch size in liters. We will confirm the basket volume, the slot width matched to your bead diameter, and the motor frame in one quotation, usually within 24 hours.
Technical FAQ
These are the questions buyers ask most often before committing to an immersion mill. If your case is not covered here, send the parameters and we will answer it directly.