Film forming vacuum pump

The film-forming vacuum pump creates a negative pressure by mechanically exhausting gas, allowing the liquid to spread evenly on the substrate surface to form a film. It is used in coating processes in industries such as paints and inks, ensuring consistent film thickness and the absence of bubbles.
Selection
When selecting a vacuum pump for film production, it is essential to consider matching the vacuum level with the process, ensuring the pumping speed aligns with the coating speed, using corrosion-resistant materials to handle chemicals, opting for a compact structure to save space, and ensuring the operating noise meets environmental requirements.

Terms

Instruments

Built-in vacuum pump without external connection, stepless speed control film speed 0~ 10cm/s, equipped with stainless steel waste collection plate to keep clean, application length can be adjusted freely.

$ 1924.00

Two-stage pump structure is equipped with PTFE material pump head, strong corrosion resistance, maximum Flow rate 125L/min, Ultimate vacuum degree 15-20mbar, no pollution and maintenance, low noise and low temperature rise.

$ 3630.00

Using PTFE pump head material and coating diaphragm, suitable for strong corrosive gases, pumping speed 20L/min, Ultimate vacuum degree 3~ 8mbar, with pressure relief and cleaning functions, good air tightness and noise less than 58dB.

$ 1579.00

Using PTFE pump head and diaphragm material, resistant to strong corrosive gases. Pumping speed 60L/min, Ultimate vacuum degree 3-8mbar, with pressure relief and cleaning functions, good air tightness, operating noise less than 58dB.

$ 2637.00

The built-in vacuum pump realizes 0~ -80kPa Vacuum Level, the fully transparent vacuum Chamber can hold 12 samples, the program control supports 80 sets of paraMeter storage, and the vacuum cycle operation is automatically completed.

$ 4108.00

Using oil-free vacuum pump to achieve pollution-free work, with three-speed Vacuum Level conversion and 0.01s high resolution, intelligent pneumatic pressure to ensure Test accuracy and efficiency.

$ 2612.00

Vacuum chuck area of 300 * 400mm, equipped with 150W vacuum pump, aperture 0.8mm to ensure uniform adsorption, improve Spreader accuracy and Stability.

$ 638.00

Using PTFE pump head material and PTFE coating diaphragm, suitable for strong corrosive gases and steam, pumping speed up to 40L/min, Ultimate vacuum degree 3~ 8mbar, with pressure relief and cleaning functions, noise is less than 58dB.

$ 1785.00

Adopt oil pump forced oil inlet device, can operate continuously under 1.33 × 10 ³ Pa intake pressure, gas distribution ballast to prevent pump oil mixing, pumping speed 2L/S, Ultimate vacuum degree up to 0.006mbar, support a variety of interface conversion.

$ 375.00

PTFE material, strong corrosion resistance, Maximum Flow rate 20L/min, Ultimate vacuum degree 15~ 20mbar, no pollution maintenance, low noise stable operation.

$ 817.00

Adopt oil-free vacuum pump to achieve pollution-free measurement, equipped with automatic switching function of large and small volume chambers, the test range covers 0-9999 seconds, supports automatic calculation of front and back smoothness, and the sealing meets the requirements of national standards.

$ 1897.00

Using electromagnetic motor and diaphragm sealing Chamber, Vacuum Level up to 0.08Mpa, pumping rate 60L/min, non-oil pump design pollution-free, full Teflon material resistant to strong acid and alkali corrosion, free of daily maintenance.

$ 388.00

The integrated pump structure is adopted, and the forced oil pump lubrication system ensures stable operation. The ultimate pressure can reach 0.005mbar, and the noise value is only 58dB. The special gas ballast valve is designed to effectively extract steam without polluting the oil quality.

$ 645.00

The integrated pump body structure is adopted, and the forced oil pump lubrication is controlled. The ultimate pressure can reach 0.005mbar, the noise is as low as 58dB, and the parts are few and easy to maintain.

$ 698.00

Using circulating water as the working fluid, the maximum Vacuum Level is -0.098Mpa, the pumping rate is 80L/min, the special fluid muffler reduces the noise, the double tap design can be used alone or in combination, and the ABS engineering plastic shell is resistant to corrosion.

$ 267.00

Articles

Effect of Different Coating Speeds on Film Thickness Consistency in an Adjustable Film Applicator
This paper studies the influence of coating speed of an adjustable film applicator on film thickness uniformity. In the experiment, the coating blade gap was fixed at 100 μm, and a resin solution with a viscosity of 200 mPa·s was used to prepare films at five speeds ranging from 10 to 80 mm/s, followed by thickness measurements.
Discussion on the Relationship Between Speed Gradient and Film Thickness in Spin-Coating Film Formation
Spin coating is a common technique that uses centrifugal force to evenly spread droplets across a substrate to form a thin film. The film thickness is influenced by multiple factors, among which the gradient of spin speed and time is a key parameter. This study, based on fluid mechanics principles and experimental validation, analyzes the quantitative effect of the spin speed gradient on film thickness.
Friction coefficient meter adjusts the control of film slip agent addition.
This article introduces how to use a coefficient of friction meter to adjust the amount of slip agent added in film production.
Film Coating Machine vs. Spray Gun: The Impact of Different Coating Methods on Coating Performance Evaluation
This article compares two laboratory film preparation methods: the film applicator and the spray gun. The film applicator can produce coatings with uniform thickness and high reproducibility through blade coating, making it suitable for precise formulation studies. The spray gun simulates actual spraying, but the film thickness uniformity is poorer, and the surface may be rougher.
The difference between a wire bar coater and a gap-type wet film applicator.
The wire-wound drawdown bar directly quantifies the coating through the gap between wires, making it suitable for thin coating preparation with high precision, particularly for low-viscosity fluids. In contrast, the gap-type wet film applicator indirectly controls film thickness through the groove depth, with the actual coating thickness significantly influenced by material properties, making it more suitable for high-viscosity coatings and thick film preparation.