Custom Tube adapter STL file ⌀ 50–40 mm (Length: 55 mm) 📦#9450

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Tube adapter ⌀50 mm to ⌀40 mm in STL format. Total length of this junction is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 30 mm. The ends are raw.
Generation date: 2026-06-14
3D Model Tube adapter STL file ⌀ 50–40 mm (Length: 55 mm)

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  • inline-tube-adapter-lenA15mm-d_model9450-nb0_dd{id}.stl : 2.5 Mo
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
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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 15 mm (≃0.59 in)
#2 side A outer diameter 50 mm (≃1.97 in)
#3 side A thickness 3 mm (≃1/8 in)
#4 side B length 30 mm (≃1 3/16 in)
#5 side B outer diameter 40 mm (≃1 9/16 in)
#6 side B thickness 3 mm (≃1/8 in)
#7 transition length 10 mm (≃0.39 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 44 mm (≃1.73 in)
inner diameter (side B) 34 mm (≃1.34 in)
total length 55 mm (≃2.17 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 

Tube adapter STL file ⌀ 42–41 mm (Length: 45 mm) (📦 #7709)

1 object(s) - format STL
Tube adapter STL file ⌀ 42–41 mm (Length: 45 mm)
Tube fitting ⌀42 mm to ⌀41 mm in STL 3D format. Total length of this coupler is 45 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 42 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 41 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 39–38 mm (Length: 45 mm) (📦 #7706)

1 object(s) - format STL
Tube adapter STL file ⌀ 39–38 mm (Length: 45 mm)
Tube fitting ⌀39 mm to ⌀38 mm in STL 3D format. Final length of this coupler is 45 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 39 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 38 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 67–39 mm (Length: 48 mm) (📦 #4866)

1 object(s) - format STL
Tubing adapter STL file ⌀ 67–39 mm (Length: 48 mm)
Inline tube adapter ⌀67 mm to ⌀39 mm in STL 3D format. Length of this fitting is 48 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 13 mm, the smaller one of 20 mm. The ends have no fillet.
Parameter Value Unit
side A length 13 mm
side A outer diameter 67 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 39 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 60–48 mm (Length: 45 mm) (📦 #1973)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 60–48 mm (Length: 45 mm)
Inline tube adapter ⌀60 mm to ⌀48 mm in STL format. Final length of this sleeve is 45 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 20 mm. The ends are not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 48 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 53–40 mm (Length: 35 mm) (📦 #9270)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 53–40 mm (Length: 35 mm)
Tube adapter ⌀53 mm to ⌀40 mm in STL 3D format. Final length of this sleeve is 35 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 53 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 40 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 67–42 mm (Length: 53 mm) (📦 #8707)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 67–42 mm (Length: 53 mm)
Diameter adapter ⌀67 mm to ⌀42 mm in STL 3D format. Length of this fitting is 53 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 23 mm, the smaller one of 20 mm. The ends have no fillet.
Parameter Value Unit
side A length 23 mm
side A outer diameter 67 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 42 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 57–46 mm (Length: 35 mm) (📦 #9300)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 57–46 mm (Length: 35 mm)
Tube reducer ⌀57 mm to ⌀46 mm in STL format. Total length of this sleeve is 35 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 57 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 46 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 50–45 mm (Length: 70 mm) (📦 #9362)

1 object(s) - format STL
Tube adapter STL file ⌀ 50–45 mm (Length: 70 mm)
Inline tube coupler ⌀50 mm to ⌀45 mm in STL format. Total length of this junction is 70 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 50 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 45 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 57–41 mm (Length: 70 mm) (📦 #5429)

1 object(s) - format STL
Tube adapter STL file ⌀ 57–41 mm (Length: 70 mm)
Straight tube adapter ⌀57 mm to ⌀41 mm in STL format. Length of this fitting is 70 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 25 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 57 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 41 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 42–37 mm (Length: 70 mm) (📦 #8212)

1 object(s) - format STL
Tube adapter STL file ⌀ 42–37 mm (Length: 70 mm)
Tube junction ⌀42 mm to ⌀37 mm in STL 3D format. Total length of this connector is 70 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve 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 42 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 37 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 68–46 mm (Length: 55 mm) (📦 #4884)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 68–46 mm (Length: 55 mm)
Inline tube reducer ⌀68 mm to ⌀46 mm in STL 3D format. Total length of this sleeve is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 20 mm. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 68 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 46 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 42–41 mm (Length: 65 mm) (📦 #7710)

1 object(s) - format STL
Tubing adapter STL file ⌀ 42–41 mm (Length: 65 mm)
Inline sleeve ⌀42 mm to ⌀41 mm in STL 3D format. Total length of this reducer is 65 mm. The thickness of the tubes is identical: 3 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 42 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 41 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 60–45 mm (Length: 75 mm) (📦 #1234)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 60–45 mm (Length: 75 mm)
Diameter adapter ⌀60 mm to ⌀45 mm in STL format. Final length of this sleeve is 75 mm. The thickness of the tubes is identical: 3 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 60 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 45 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 50–40 mm (Length: 43 mm) (📦 #7837)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 50–40 mm (Length: 43 mm)
Inline tube reducer ⌀50 mm to ⌀40 mm in STL 3D format. Final length of this fitting is 43 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 50 mm
side A thickness 2.5 mm
side B length 15 mm
side B outer diameter 40 mm
side B thickness 2.5 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 61–58 mm (Length: 60 mm) (📦 #4709)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 61–58 mm (Length: 60 mm)
Inline tubing adapter ⌀61 mm to ⌀58 mm in STL 3D format. Length of this adapter is 60 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 61 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 58 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 40–39 mm (Length: 43 mm) (📦 #7838)

1 object(s) - format STL
Tubing adapter STL file ⌀ 40–39 mm (Length: 43 mm)
Tube junction ⌀40 mm to ⌀39 mm in STL 3D format. Total length of this sleeve is 43 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 15 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 40 mm
side A thickness 2.5 mm
side B length 15 mm
side B outer diameter 39 mm
side B thickness 2.5 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 46–38 mm (Length: 80 mm) (📦 #5044)

1 object(s) - format STL
Tubing adapter STL file ⌀ 46–38 mm (Length: 80 mm)
Inline fitting ⌀46 mm to ⌀38 mm in STL 3D format. Final length of this coupler is 80 mm. The thickness of the tubes is identical: 3 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 46 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 38 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 68–45 mm (Length: 75 mm) (📦 #3463)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 68–45 mm (Length: 75 mm)
Straight tube fitting ⌀68 mm to ⌀45 mm in STL format. Length of this fitting is 75 mm. The thickness of the tubes is identical: 3 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 68 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 45 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 68–41 mm (Length: 50 mm) (📦 #9020)

1 object(s) - format STL
Tube adapter STL file ⌀ 68–41 mm (Length: 50 mm)
Straight tubing adapter ⌀68 mm to ⌀41 mm in STL format. Final length of this reducer is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 15 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 15 mm
side A outer diameter 68 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 41 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 38–37 mm (Length: 80 mm) (📦 #7705)

1 object(s) - format STL
Tubing adapter STL file ⌀ 38–37 mm (Length: 80 mm)
Inline tube coupler ⌀38 mm to ⌀37 mm in STL 3D format. Final length of this coupler is 80 mm. The thickness of the tubes is identical: 3 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 3 mm
side B length 30 mm
side B outer diameter 37 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 68–46 mm (Length: 50 mm) (📦 #9016)

1 object(s) - format STL
Tube adapter STL file ⌀ 68–46 mm (Length: 50 mm)
Tubing reducer ⌀68 mm to ⌀46 mm in STL format. Total length of this connector is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 15 mm as well. The ends are raw.
Parameter Value Unit
side A length 15 mm
side A outer diameter 68 mm
side A thickness 3 mm
side B length 15 mm
side B outer diameter 46 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 45–40 mm (Length: 65 mm) (📦 #1942)

1 object(s) - format STL
Tube adapter STL file ⌀ 45–40 mm (Length: 65 mm)
Tube adapter ⌀45 mm to ⌀40 mm in STL format. Total length of this coupler is 65 mm. The thickness of the tubes is identical: 2.5 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 45 mm
side A thickness 2.5 mm
side B length 30 mm
side B outer diameter 40 mm
side B thickness 2.5 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 60–47 mm (Length: 80 mm) (📦 #2556)

1 object(s) - format STL
Tube adapter STL file ⌀ 60–47 mm (Length: 80 mm)
Straight tube reducer ⌀60 mm to ⌀47 mm in STL format. Length of this reducer is 80 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 30 mm as well. The axes of the tubes are offset by 0.1 mm. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 47 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0.1 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 40–32 mm (Length: 80 mm) (📦 #5043)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 40–32 mm (Length: 80 mm)
Inline tube junction ⌀40 mm to ⌀32 mm in STL format. Final length of this fitting is 80 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve 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 40 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 32 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 63–56 mm (Length: 70 mm) (📦 #4307)

1 object(s) - format STL
Tube adapter STL file ⌀ 63–56 mm (Length: 70 mm)
Tube reducer ⌀63 mm to ⌀56 mm in STL format. Final length of this coupler is 70 mm. The thickness of the tubes is identical: 3 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 63 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 56 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 58–48 mm (Length: 75 mm) (📦 #5424)

1 object(s) - format STL
Tubing adapter STL file ⌀ 58–48 mm (Length: 75 mm)
Inline tube junction ⌀58 mm to ⌀48 mm in STL 3D format. Total length of this fitting is 75 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 25 mm. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 58 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 48 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 63–50 mm (Length: 63 mm) (📦 #5002)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 63–50 mm (Length: 63 mm)
Diameter adapter ⌀63 mm to ⌀50 mm in STL format. Total length of this coupler is 63 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 18 mm. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 63 mm
side A thickness 3 mm
side B length 18 mm
side B outer diameter 50 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 35–34 mm (Length: 55 mm) (📦 #8183)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 35–34 mm (Length: 55 mm)
Straight tube reducer ⌀35 mm to ⌀34 mm in STL 3D format. Total length of this fitting is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 20 mm. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 35 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 34 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 81–58 mm (Length: 49 mm) (📦 #6944)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 81–58 mm (Length: 49 mm)
Inline tube reducer ⌀81 mm to ⌀58 mm in STL 3D format. Total length of this reducer is 49 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 15 mm, the smaller one of 24 mm. The ends are not rounded.
Parameter Value Unit
side A length 15 mm
side A outer diameter 81 mm
side A thickness 3 mm
side B length 24 mm
side B outer diameter 58 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet