Custom Tube adapter STL 3D file ⌀ 50–32 mm (Length: 150 mm) 📦#7734

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Tube reducer ⌀50 mm to ⌀32 mm in STL 3D format. Total length of this fitting is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends are rounded on the outside to make tube connection easier.
Generation date: 2026-03-10
3D Model Tube adapter STL 3D file ⌀ 50–32 mm (Length: 150 mm)

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  • inline-tube-adapter-lenA50mm-d_model7734-nb0_dd{id}.stl : 3.8 Mo
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
(attribution - commercial use allowed)
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Values for this model

This model was generated by the Inline tube adapter template, with the following values:
Parameter Value
#1 side A length 50 mm (≃1.97 in)
#2 side A outer diameter 50 mm (≃1.97 in)
#3 side A thickness 2 mm (≃0.08 in)
#4 side B length 50 mm (≃1.97 in)
#5 side B outer diameter 32 mm (≃1 1/4 in)
#6 side B thickness 2 mm (≃0.08 in)
#7 transition length 50 mm (≃1.97 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet fillet on the outside
Metadata Value
inner diameter (side A) 46 mm (≃1 13/16 in)
inner diameter (side B) 28 mm (≃1.10 in)
total length 150 mm (≃5.91 in)
illustration of the parameters
Parameter overview

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 side A length lenA
#2 side A outer diameter diA
#3 side A thickness thA
#4 side B length lenB
#5 side B outer diameter diB
#6 side B thickness thB
#7 transition length tra
#8 axis offset ofs
#9 ends fillet fil

Related 3D models

To search for a model based on your own parameters, go to the template page Inline tube adapter 

Tubing reducer ⌀36 mm to ⌀20 mm in STL format. Total length of this fitting is 130 mm. The larger-diameter tube has a thickness of 2.6 mm and a sleeve length of 40 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 40 mm as well. The ends are rounded on the outside to ease the connection.
Parameter Value Unit
side A length 40 mm
side A outer diameter 36 mm
side A thickness 2.6 mm
side B length 40 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet fillet on th...
Straight tube fitting ⌀36 mm to ⌀9 mm in STL format. Total length of this coupler is 130 mm. The larger-diameter tube has a thickness of 2.6 mm and a length of 40 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 40 mm as well. The ends are rounded on the outside.
Parameter Value Unit
side A length 40 mm
side A outer diameter 36 mm
side A thickness 2.6 mm
side B length 40 mm
side B outer diameter 9 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet fillet on th...
Straight tube fitting ⌀36 mm to ⌀7 mm in STL 3D format. Total length of this connector is 130 mm. The larger-diameter tube has a thickness of 2.6 mm and a sleeve length of 40 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 40 mm as well. The ends have a fillet on the outside to make tube connection easier.
Parameter Value Unit
side A length 40 mm
side A outer diameter 36 mm
side A thickness 2.6 mm
side B length 40 mm
side B outer diameter 7 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet fillet on th...
Tube connector ⌀77 mm to ⌀50 mm in STL format. Total length of this fitting is 125 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 45 mm, the smaller one of 40 mm. The ends are rounded on the outside to make tube connection easier.
Parameter Value Unit
side A length 45 mm
side A outer diameter 77 mm
side A thickness 2.5 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 2.5 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on th...
Inline tube adapter ⌀77 mm to ⌀50 mm in STL 3D format. Length of this sleeve is 125 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 45 mm, the smaller one of 40 mm. The two axes of the tubes are offset by 1 mm. The ends have a fillet on the outside.
Parameter Value Unit
side A length 45 mm
side A outer diameter 77 mm
side A thickness 2.5 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 2.5 mm
transition length 40 mm
axis offset 1 mm
ends fillet fillet on th...
Inline tube reducer ⌀32 mm to ⌀26 mm in STL 3D format. Final length of this adapter is 140 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 50 mm as well. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 32 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 26 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet
Inline tube coupler ⌀90 mm to ⌀50 mm in STL 3D format. Total length of this connector is 130 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 40 mm. The two axes of the tubes are offset by 1 mm. The ends feature an external fillet to make tube connection easier.
Parameter Value Unit
side A length 50 mm
side A outer diameter 90 mm
side A thickness 2.5 mm
side B length 40 mm
side B outer diameter 50 mm
side B thickness 2.5 mm
transition length 40 mm
axis offset 1 mm
ends fillet fillet on th...
Tube reducer ⌀73 mm to ⌀51 mm in STL format. Length of this coupler is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 50 mm as well. The ends are raw.
Parameter Value Unit
side A length 50 mm
side A outer diameter 73 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 51 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Diameter adapter ⌀24 mm to ⌀14 mm in STL 3D format. Length of this sleeve is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 24 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 14 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Inline tube coupler ⌀44 mm to ⌀24 mm in STL 3D format. Total length of this fitting is 110 mm. The thickness of the tubes is identical: 2.1 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 40 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 44 mm
side A thickness 2.1 mm
side B length 40 mm
side B outer diameter 24 mm
side B thickness 2.1 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet
Inline fitting ⌀38 mm to ⌀36 mm in STL 3D format. Final length of this adapter is 110 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 40 mm, the smaller one of 40 mm as well. The ends are rounded on the inside.
Parameter Value Unit
side A length 40 mm
side A outer diameter 38 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 36 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...
Straight tube adapter ⌀40 mm to ⌀24 mm in STL 3D format. Total length of this adapter is 110 mm. The thickness of the tubes is identical: 2.1 mm. The larger-diameter tube has a sleeve length of 40 mm, the smaller one of 40 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 40 mm
side A outer diameter 40 mm
side A thickness 2.1 mm
side B length 40 mm
side B outer diameter 24 mm
side B thickness 2.1 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet
Tubing reducer ⌀78 mm to ⌀43 mm in STL format. Total length of this sleeve is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 35 mm, the smaller one of 35 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 35 mm
side A outer diameter 78 mm
side A thickness 2 mm
side B length 35 mm
side B outer diameter 43 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Tube junction ⌀100 mm to ⌀60 mm in STL format. Total length of this junction is 180 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 60 mm, the smaller one of 60 mm as well. The ends feature an external fillet.
Parameter Value Unit
side A length 60 mm
side A outer diameter 100 mm
side A thickness 2 mm
side B length 60 mm
side B outer diameter 60 mm
side B thickness 2 mm
transition length 60 mm
axis offset 0 mm
ends fillet fillet on th...
Inline fitting ⌀40 mm to ⌀20 mm in STL format. Final length of this reducer is 110 mm. The larger-diameter tube has a thickness of 2 mm and a length of 40 mm. The smaller-diameter tube has a thickness of 2.2 mm and a length of 40 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 40 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 20 mm
side B thickness 2.2 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet
Straight tube connector ⌀99 mm to ⌀49 mm in STL format. Total length of this coupler is 150 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 50 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 50 mm
side A outer diameter 99 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 49 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Tube adapter ⌀75 mm to ⌀25 mm in STL format. Final length of this coupler is 110 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 40 mm. The ends are rounded on the inside to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 75 mm
side A thickness 2 mm
side B length 40 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on th...
Tubing reducer ⌀54 mm to ⌀39 mm in STL 3D format. Length of this connector is 120 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 40 mm as well. The ends are rounded on the inside.
Parameter Value Unit
side A length 40 mm
side A outer diameter 54 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 39 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet fillet on th...
Tube junction ⌀27 mm to ⌀23 mm in STL format. Length of this fitting is 192 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 61 mm, the smaller one of 71 mm. The ends are raw.
Parameter Value Unit
side A length 61 mm
side A outer diameter 27 mm
side A thickness 2 mm
side B length 71 mm
side B outer diameter 23 mm
side B thickness 2 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet
Straight tube fitting ⌀20 mm to ⌀15 mm in STL format. Length of this connector is 110 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 40 mm, the smaller one of 40 mm as well. The ends have a fillet on the outside to make tube connection easier.
Parameter Value Unit
side A length 40 mm
side A outer diameter 20 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 15 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...
Tube junction ⌀40 mm to ⌀35 mm in STL 3D format. Total length of this coupler is 130 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 50 mm. The ends have a fillet on the inside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 30 mm
side A outer diameter 40 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 50 mm
axis offset 0 mm
ends fillet fillet on th...
Inline tube reducer ⌀40 mm to ⌀35 mm in STL 3D format. Length of this adapter is 130 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 50 mm. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 40 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Straight tube reducer ⌀38 mm to ⌀10 mm in STL 3D format. Total length of this coupler is 90 mm. The larger-diameter tube has a thickness of 2.5 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 30 mm as well. The ends are rounded on the outside to make tube connection easier.
Parameter Value Unit
side A length 30 mm
side A outer diameter 38 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...
Inline fitting ⌀38 mm to ⌀25 mm in STL format. Length of this reducer is 100 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 38 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet
Inline sleeve ⌀36 mm to ⌀25 mm in STL format. Length of this fitting is 100 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 30 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 36 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 25 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet
Tubing adapter ⌀60 mm to ⌀12 mm in STL 3D format. Length of this fitting is 110 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 60 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 12 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Tube connector ⌀38 mm to ⌀12 mm in STL format. Length of this adapter is 110 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 38 mm
side A thickness 2 mm
side B length 30 mm
side B outer diameter 12 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet
Tube adapter ⌀43 mm to ⌀31 mm in STL format. Final length of this coupler is 120 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 50 mm, the smaller one of 50 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 43 mm
side A thickness 2 mm
side B length 50 mm
side B outer diameter 31 mm
side B thickness 2 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet
Inline tube reducer ⌀56 mm to ⌀25 mm in STL format. Total length of this coupler is 120 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 40 mm, the smaller one of 50 mm. The ends are not rounded.
Parameter Value Unit
side A length 40 mm
side A outer diameter 56 mm
side A thickness 3 mm
side B length 50 mm
side B outer diameter 25 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet
Inline tube junction ⌀27 mm to ⌀23 mm in STL format. Length of this junction is 162 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 31 mm, the smaller one of 71 mm. The ends have no fillet.
Parameter Value Unit
side A length 31 mm
side A outer diameter 27 mm
side A thickness 2 mm
side B length 71 mm
side B outer diameter 23 mm
side B thickness 2 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet