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Pug Mill-Auxiliary Equipment for Clay 3D Printers

$2,195
TC125
US$ 2,195
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⏰ Working Hours: Mon-Fri (Beijing Time)
🚚 Worldwide Shipping Available
🛡️ 2-Year Official Machine Warranty

Equipment Parameters

Type Dual-shaft horizontal
Mud output 500-800 kg/hour
Mud output diameter φ100mm
Spindle speed 42 rpm/min
Motor 2.2 KW
Vacuum degree 0.68-0.96
Vacuum pump model 2X-4 rotary vane type
Vacuum pump power 0.55 Kw
Operating voltage 220V/380V
Mud loading (clay for 3D printer barrel) Equipped with automatic clay loading function
Overall dimensions 1580×500×900 mm
Weight 250 kg

Main Structure, Working Principle & Operation of Vacuum Pug Mill

The vacuum clay kneading machine consists of a clay kneading unit, a vacuum pump, and vacuum accessories. The main machine is arranged in a horizontal layout, mainly including the following components:
  • Power transmission system
  • Feeding and mixing components
  • Vacuum chamber
  • Extrusion molding unit
  • Machine frame
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Working Principle:
  • The clay passes through a sieve plate to expand its surface area, allowing the trapped and adsorbed air to be sucked out by the vacuum pump.
  • The clay is continuously degassed while being pushed forward; by the time it enters the vacuum chamber, most air has been removed.
  • Driven by the extrusion screw, the clay is pushed into the conical cylinder of the machine head, and finally extruded through the die nozzle.
  • The extruded clay is cut into sections of the required size on a roller conveyor platform, which are then sent to the molding workshop for production.

More Core Advantages of the Equipment

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Hoisting, Installation & Test Run

Note: All parts of the main machine are mounted on a base, ensuring easy installation and transportation.Before the test run, fill the gearbox and all lubrication points with appropriate lubricating oil. After installation and adjustment, the machine must undergo an idle test run for 20-30 minutes. During the idle run, confirm the following: No abnormal noise, overheating, or vibration in any part; Correct rotation direction of all moving components. Only after passing the idle test run can the machine be put into loaded operation.

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Application Points of Mixer for Concrete 3D Printer

Homogenize & Remove Impurities to Enhance Clay Plasticity

Knead and press to eliminate air bubbles, sand particles and other impurities in clay, making the clay uniform and fine. This prevents nozzle clogging and finished product cracking caused by uneven raw materials during printing.

Adjust Moisture Content to Fit Printing Needs

Precisely control clay moisture content (usually 20%-25%), ensuring the clay is "easy to extrude without deformation"—adapting to the extrusion pressure of 3D printer nozzles and guaranteeing firm interlayer bonding of printed parts.

Continuous Feeding to Match Printing Rhythm

Link with the 3D printer’s feeding system to continuously supply clay (strip or block shape), avoiding feeding interruptions from manual refueling. It ensures the continuity of long-cycle printing (e.g., large ceramic artworks) and reduces printing defects.

Maintenance and Repair Methods

  1. Before each use, check if there are any obstacles in the feeding hopper to prevent equipment accidents during operation.
  2. Check if the vacuum chamber is blocked; if blocked, stop the machine immediately to clear the blockage.
  3. Always keep the oil level in the gearbox at a certain height, and replace the oil with new oil every three months. Lubricate all bearings with oil or grease regularly.
  4. Frequently inspect the pipeline system for air leakage to ensure reliable sealing.
  5. If the machine will be out of service for a long time, clean the clay kneading components thoroughly and apply anti-rust oil to the processed surfaces.
  6. If there is a sharp drop in output accompanied by severe overheating, check if the screw blades are severely worn. If the wear is serious, replace the screw blades with new ones.
  7. If the rolling bearings of the gearbox are worn, remove them and replace them according to the rolling bearing specification table.

FAQs

Please note the following operations

  1. Stop feeding clay into the hopper.
  2. Turn off the main motor switch to stop the clay kneading machine.
  3. Open the gate valve of the vacuum pipeline to let atmospheric air enter the vacuum chamber.
  4. Turn off the vacuum pump motor to stop the vacuum pump.
  5. Cover the feeding hopper with its lid and clean the area around the clay kneading machine.

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