
Pneumatic 3D Models: STL Files for Cylinders and Valves
This collection gathers 3D-printable parts for pneumatic systems: cylinders, valves, manifolds, fittings and brick-style air elements. Most files are made for hobby 3D printing and cover both working air circuits and demonstration models. The range below shows what kinds of parts appear in the results. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
Esta colección está escrita en inglés, pero la búsqueda funciona en cualquier idioma.
Cómo se elabora esta colección
Polyzon reúne esta colección a partir de los resultados de búsqueda de las plataformas conectadas. Se eliminan los duplicados y los modelos sin vista previa, las coincidencias débiles van al final y el resto mantiene el orden de la búsqueda. Los modelos pertenecen a sus autores: consulta las condiciones en la página de cada modelo.
Criterios de selección: el equipo editorial de Polyzon · Texto actualizado el 13/10/2026
Por dónde empezar
Todos los modelos de esta colección

Pneumatics engine 2.0
DIN-Rail Pneumatics | Solenoid Valve Manifold Brackets

Assorted Bricks - Hinges, Chain, Tiles, Pneumatics

Pneumatics Exercise: Pick and Place Festo

Пневматика, вивер 20мм под воздушку ИЖ-60, 61

737 NG Air-conditioning panel, Pneumatics panel and Cabin presurization panel

Balloon Powered Radial Engine

Thin sheet shearing system pneumatics.

Pneumatics propulsion

Pneumatics Exercise: Pick and Place Metalworks

Pneumatics Manifold Assembly

Bownden Extruder Pneumatic Fitting PC4-M6

Pneumatics Air Filter

Astro Pneumatics Metric Swivel Socket Organizer

Plastic Bottle Cap for Lego Pneumatics

FRC Pneumatics Test Bench

Pneumatic Fittings PET Bottle Cap

Astro Pneumatics Chrome 1/4 Swivel Socket Tray

Pneumatics Injection Moulding Machine

Plastic Injection Mold Pneumatics

Socket Tray - Astro Pneumatics Chrome 3-8 Swivel

Remote for Hydraulic/Pneumatic arm with syringes

This is an excellent project for GrabCAD because it combines mechanical design, pneumatics, and automation.

Astro Pneumatics 3/8 Impact Socket Tray

Home Pick and place w Pneumatics

Compressor for brick pneumatics

Air Balloon Motor for LEGO

FIRST Robotics Pneumatics Bracket

A target for pneumatics.

Airways Economatics Pneumatics cylinder screw piece

Various size of Pneumatics And their Stocks

Pneumatics Engine (single piston)

Main Pneumatics Uint

Pneumatics shock absorber concept

PNEUMATICS TOOL

Single-part Pneumatic Connector to 1/4 inch barb adapter

Hydraulics and Pneumatics

Pneumatics control system Automation Direct

CNC LASER AND PNEUMATICS TOOL SET

pneumatics
3D Printed Male-To-Male Tubing Adapters

SMC Pneumatics Connected

Pneumatics Holder

SMC Pneumatics Tall Screen
«Pneumatic 3D Models: STL Files for Cylinders and Valves»
Cylinders, valves and manifolds form one large group: single- and double-acting cylinders, solenoid valve brackets and multi-port manifolds show up as separate parts or as assemblies. A second group covers brick and Technic style pneumatics, including air tanks, caps and adapters that link brick-built circuits to standard tubing. Air-driven engines and propulsion experiments make up a third group, where a piston or rotor is moved by air, while small fittings, filters and bottle-cap adapters form a fourth.
When choosing a model, check the dimensions the author lists: bore and stroke, port thread, hose diameter and the footprint on the build plate. Look at the number of parts and how they join — threaded connections, press fits or screws — and whether the author mentions supports. Material and settings matter for parts that hold air, so read the notes on the model page and look at photos of real prints before scaling anything.
To widen or narrow the search, try synonyms such as air cylinder, compressed air valve, actuator or manifold, and combine them with words like bracket, adapter or test bench. Related topics include robotics and automation projects, model engines, RC vehicles and brick-based building systems. Adding a size or a thread standard to the query usually narrows results faster than one broad word.
Some models are complete mechanisms, others are single replacement parts, and the difference affects how much assembly and tuning the build needs. A pick-and-place exercise is usually a set of brackets, cylinders and tubing routes, while a fitting or a cap is a one-piece print. Decide which of the two you need before downloading, since the print time and the number of test fits differ a lot.
Preguntas frecuentes
What is the difference between a pneumatic cylinder and a pneumatic engine model?
Do pneumatic 3D prints need supports?
Which material is used for pneumatic parts?
How do I find parts that fit brick-based systems?
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