Wall putty and car putty are thick pastes with a high solid content. The filler has to be wetted and dispersed into the binder, the paste sticks to the tank wall, and it is too heavy to move with an ordinary pump. A good production line is built around those three problems: a mixer that wets the powder and handles the viscosity, a press-out machine that pushes the paste out of the tank, and a filling machine that packs it.
This guide covers ready-mixed (paste) putty. For dry powder putty, see our powder mixer and blender guide.
A putty production line: mixer, hydraulic extruder and filling station.
Binder and powder ingredients go into a double-shaft or three-shaft mixer. A high-speed disperser wets the powder, and a slow anchor or screw shaft keeps the whole batch moving.
A hydraulic press-out machine pushes the finished putty out of the tank from above, so the paste does not have to flow to a pump.
A filling machine matched to the press-out machine packs the putty into your containers.
Each stage has its own guide: hydraulic discharge press and filling machine.
Butterfly mixer with a hydraulic press-out machine.
Concentric mixer with a hydraulic ram press and filling.
Viscosity and solid content decide the mixer. These ranges come from our current mixer lineup. Your formula and batch size decide the final choice.
| Mixer | Viscosity Range | Suited To | Standard Sizes |
|---|---|---|---|
| Concentric double-shaft mixer | 50,000 – 100,000 cPs | Wall putty, plaster and other high-solid pastes | Floor type 50L–1500L; platform type 2000L–5000L |
| Butterfly double-shaft mixer | 100,000 – 200,000 cPs | Car putty and thicker putty | Floor type 50L–1500L; platform type 2000L–5000L |
| Three-shaft mixer | 200,000 – 500,000 cPs | Car putty and high-solid wall plaster | Floor type 500L–2000L; platform type 2000L–8000L |
| Above 500,000 cPs | Contact us | Our sales engineers will confirm the configuration | On request |
Larger sizes can be customized. See also our high viscosity mixer guide and three-shaft mixer guide.
A high-speed disperser in the center creates a vortex, and powder ingredients poured into it wet quickly. A side anchor shaft feeds the paste back toward the disperser, and PTFE scrapers clean the tank wall. A powder inlet lets small bags be fed straight into the mixer.
A butterfly agitator works with a high-speed disperser. The build is heavy-duty for thick products, and PTFE scrapers remove paste from the vessel wall without residue.
Three shafts work together: a high-speed dispersing shaft, a low-speed screw shaft and a low-speed anchor shaft. It suits pastes with a high solid content that need dispersion and strong kneading at the same time.
1200L concentric double-shaft paste mixer.
1500L hydraulic vacuum butterfly mixer.
6000L industrial triple-shaft paste mixer.
Helical agitator with PTFE scrapers.
Many wall putty producers also make architectural paint. The dispersing stage uses the same family of equipment, so one plant layout can serve both. See our paint and coating production line and high speed dispersers.
POLYC designs, machines, assembles and tests its equipment in a 9,000 m² factory in Wuxi. We supply the mixers, the hydraulic press-out machines and the filling machines, so the stages of your line come from one manufacturer.
POLYC's 9,000 m² manufacturing base in Wuxi.
Send us your putty type, viscosity, batch size and container format. We will recommend the mixer, press-out machine and filling machine and reply within 24 hours.