Language

+86-574-88068716

LIS -- Devoted To Spraying BE THE SPRAY GUN EXPERT IN THE WORLD

Gravity Feed Spray Guns

-- Steady & Reliable Manufacturer --

What Is a Gravity Feed Spray Gun?

A gravity-feed spray gun positions the material cup on top of the gun body, allowing coating to flow down into the fluid inlet by gravity rather than relying on air pressure or suction to lift it. This simple physics advantage means the gun requires less inlet air pressure to maintain consistent fluid flow, can spray to the last few millilitres of material in the cup, and performs reliably across a wide range of fluid viscosities.

Gravity-feed design has become the dominant configuration in professional automotive and furniture finishing worldwide. LIS gravity-feed guns are manufactured in Ningbo with CNC-machined aluminium bodies, precision-lapped fluid passages, and stainless needles — and are available across HVLP, LVLP, and conventional pressure ranges.

Gravity Feed vs. Suction Feed: Key Differences

Suction-feed guns draw paint from a cup below the gun using air venturi action — they work well for high-volume continuous production but leave more material in the cup at the end of a job. Gravity-feed is cleaner, more material-efficient, and easier to adjust on the fly, which is why professional finishers default to it for small-to-medium jobs and premium finish work.

Specification

ParameterStandard Range
Feed TypeGravity (top-mount cup)
Cup Capacity125 ml / 400 ml / 600 ml / 1000 ml
Cup MaterialAluminium / translucent plastic / stainless steel
Nozzle Size Options0.8 / 1.0 / 1.2 / 1.3 / 1.4 / 1.7 / 1.8 / 2.0 mm
Pattern TypeRound / fan (adjustable)
Fan WidthUp to 300 mm
Inlet Pressure Range20–50 psi (model dependent)
Body MaterialDie-cast aluminium alloy
Needle MaterialStainless steel (standard) / chrome-plated brass
Weight420–650 g (body only, without cup)
Available ConfigurationsHVLP / LVLP / conventional

Application

  • Automotive Clearcoat & Basecoat: The preferred gun type in professional body shops for final finish coats where film consistency and gloss uniformity are critical.
  • Furniture Lacquering: Ideal for small production runs and custom pieces where quick colour changes and minimal material waste matter.
  • Cabinet Finishing: Fine atomisation with gravity-feed consistency suits the flat panel and door surfaces common in kitchen and bathroom cabinetry.
  • Motorcycle & Bicycle Frames: Curved geometry and mixed-surface finishing benefit from the precision pattern control of gravity-feed HVLP guns.
  • Plastic Parts & Electronics Housings: Thin-viscosity base lacquers applied at low pressure minimise solvent pop and fisheye defects.
  • Custom & Restoration Work: Easy cup access and see-through plastic cups help restorers manage small quantities of matched colours precisely.

Advantages

  • Material Efficiency: Gravity flow allows spraying to the last few ml in the cup — virtually no heel loss compared to suction-feed designs.
  • Lower Operating Pressure: Gravity assists fluid delivery, so less inlet air pressure is needed — reducing turbulence and improving atomisation quality at the cap.
  • Fast Colour Change: Small-capacity cups (125–400 ml) make switching between colours quick and solvent-efficient — important in custom work and prototyping environments.
  • Balanced Gun Handling: Top-mounted cup (especially when nearly empty) keeps the gun's centre of gravity low, reducing wrist fatigue during long finishing sessions.
  • Easy Cleaning: Simple disassembly and access to all fluid-contact surfaces makes end-of-shift cleaning faster than pressure-feed or suction-feed configurations.
  • Wide Nozzle Availability: LIS stocks nozzle/needle/air-cap sets from 0.8 to 2.0 mm, covering everything from fine dye to high-build primer in one gun body.

Contact us now