Custom Tube adapter STL file ⌀ 55–40 mm (Length: 65 mm) 📦#8397

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Tube coupler ⌀55 mm to ⌀40 mm in STL 3D format. Total length of this junction is 65 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 40 mm. The ends are raw.
Generation date: 2026-04-11
3D Model Tube adapter STL file ⌀ 55–40 mm (Length: 65 mm)

3D model download

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  • inline-tube-adapter-lenA20mm-d_model8397-nb0_dd{id}.stl : 4.9 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 20 mm (≃0.79 in)
#2 side A outer diameter 55 mm (≃2.17 in)
#3 side A thickness 5 mm (≃3/16 in)
#4 side B length 40 mm (≃1 9/16 in)
#5 side B outer diameter 40 mm (≃1 9/16 in)
#6 side B thickness 5 mm (≃3/16 in)
#7 transition length 5 mm (≃3/16 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 45 mm (≃1.77 in)
inner diameter (side B) 30 mm (≃1 3/16 in)
total length 65 mm (≃2 9/16 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 adapter STL file ⌀ 80–40 mm (Length: 80 mm) (📦 #4711)

1 object(s) - format STL
Tubing adapter STL file ⌀ 80–40 mm (Length: 80 mm)
Tube connector ⌀80 mm to ⌀40 mm in STL format. Length of this adapter is 80 mm. The thickness of the tubes is identical: 5 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 80 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 40 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 32–24 mm (Length: 78 mm) (📦 #9337)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 32–24 mm (Length: 78 mm)
Straight tube connector ⌀32 mm to ⌀24 mm in STL format. Final length of this connector is 78 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a 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 32 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 24 mm
side B thickness 5 mm
transition length 18 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 50–40 mm (Length: 108 mm) (📦 #2978)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 50–40 mm (Length: 108 mm)
Straight tube reducer ⌀50 mm to ⌀40 mm in STL 3D format. Total length of this coupler is 108 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 60 mm. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 50 mm
side A thickness 5 mm
side B length 60 mm
side B outer diameter 40 mm
side B thickness 5 mm
transition length 18 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 42–29 mm (Length: 85 mm) (📦 #8231)

1 object(s) - format STL
Tubing adapter STL file ⌀ 42–29 mm (Length: 85 mm)
Diameter adapter ⌀42 mm to ⌀29 mm in STL 3D format. Total length of this junction is 85 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 35 mm, the smaller one of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 35 mm
side A outer diameter 42 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 29 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 64–49 mm (Length: 63 mm) (📦 #1229)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 64–49 mm (Length: 63 mm)
Inline tube adapter ⌀64 mm to ⌀49 mm in STL format. Length of this adapter is 63 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 64 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 49 mm
side B thickness 4 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 48–40 mm (Length: 75 mm) (📦 #9505)

1 object(s) - format STL
Tube adapter STL file ⌀ 48–40 mm (Length: 75 mm)
Inline tube coupler ⌀48 mm to ⌀40 mm in STL format. Total length of this connector is 75 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 25 mm, the smaller one of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 48 mm
side A thickness 4 mm
side B length 30 mm
side B outer diameter 40 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 48–44 mm (Length: 45 mm) (📦 #9541)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 48–44 mm (Length: 45 mm)
Tube connector ⌀48 mm to ⌀44 mm in STL format. Final length of this sleeve is 45 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 20 mm
side A outer diameter 48 mm
side A thickness 4 mm
side B length 20 mm
side B outer diameter 44 mm
side B thickness 4 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 50–45 mm (Length: 90 mm) (📦 #1918)

1 object(s) - format STL
Tube adapter STL file ⌀ 50–45 mm (Length: 90 mm)
Straight tube coupler ⌀50 mm to ⌀45 mm in STL 3D format. Length of this adapter is 90 mm. The thickness of the tubes is identical: 5 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 50 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 45 mm
side B thickness 5 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 48–40 mm (Length: 90 mm) (📦 #8054)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 48–40 mm (Length: 90 mm)
Inline fitting ⌀48 mm to ⌀40 mm in STL format. Length of this reducer is 90 mm. The thickness of the tubes is identical: 4 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 48 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 40 mm
side B thickness 4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 68–52 mm (Length: 65 mm) (📦 #1231)

1 object(s) - format STL
Tube adapter STL file ⌀ 68–52 mm (Length: 65 mm)
Straight tube fitting ⌀68 mm to ⌀52 mm in STL 3D format. Total length of this connector is 65 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve 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 68 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 52 mm
side B thickness 4 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 68–53 mm (Length: 65 mm) (📦 #1233)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 68–53 mm (Length: 65 mm)
Straight sleeve ⌀68 mm to ⌀53 mm in STL 3D format. Total length of this sleeve is 65 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 68 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 53 mm
side B thickness 4 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 68–52 mm (Length: 85 mm) (📦 #9131)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 68–52 mm (Length: 85 mm)
Inline tube junction ⌀68 mm to ⌀52 mm in STL format. Length of this coupler is 85 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve 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 68 mm
side A thickness 4 mm
side B length 35 mm
side B outer diameter 52 mm
side B thickness 4 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 39–24 mm (Length: 60 mm) (📦 #9340)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 39–24 mm (Length: 60 mm)
Tube coupler ⌀39 mm to ⌀24 mm in STL 3D format. Final length of this connector is 60 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a 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 39 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 24 mm
side B thickness 4 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 60–58 mm (Length: 45 mm) (📦 #4515)

1 object(s) - format STL
Tubing adapter STL file ⌀ 60–58 mm (Length: 45 mm)
Straight tube fitting ⌀60 mm to ⌀58 mm in STL 3D format. Total length of this adapter is 45 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a 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 60 mm
side A thickness 4 mm
side B length 20 mm
side B outer diameter 58 mm
side B thickness 4 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 32–29 mm (Length: 85 mm) (📦 #8232)

1 object(s) - format STL
Tube adapter STL file ⌀ 32–29 mm (Length: 85 mm)
Tube junction ⌀32 mm to ⌀29 mm in STL 3D format. Total length of this connector is 85 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 35 mm. The smaller-diameter tube has a thickness of 5 mm and a length of 30 mm. The ends are raw.
Parameter Value Unit
side A length 35 mm
side A outer diameter 32 mm
side A thickness 4 mm
side B length 30 mm
side B outer diameter 29 mm
side B thickness 5 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 68–58 mm (Length: 35 mm) (📦 #4514)

1 object(s) - format STL
Tubing adapter STL file ⌀ 68–58 mm (Length: 35 mm)
Straight tube fitting ⌀68 mm to ⌀58 mm in STL format. Total length of this connector is 35 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 20 mm. The ends are raw.
Parameter Value Unit
side A length 10 mm
side A outer diameter 68 mm
side A thickness 4 mm
side B length 20 mm
side B outer diameter 58 mm
side B thickness 4 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 88–25 mm (Length: 63 mm) (📦 #1823)

1 object(s) - format STL
Tube adapter STL file ⌀ 88–25 mm (Length: 63 mm)
Tube coupler ⌀88 mm to ⌀25 mm in STL format. Total length of this adapter is 63 mm. The thickness of the tubes is identical: 4 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 88 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 25 mm
side B thickness 4 mm
transition length 13 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 44–24 mm (Length: 75 mm) (📦 #9350)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 44–24 mm (Length: 75 mm)
Inline tube adapter ⌀44 mm to ⌀24 mm in STL 3D format. Final length of this adapter is 75 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 30 mm, the smaller one of 25 mm. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 44 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 24 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 40–24 mm (Length: 75 mm) (📦 #9341)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 40–24 mm (Length: 75 mm)
Inline tube reducer ⌀40 mm to ⌀24 mm in STL format. Length of this adapter is 75 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 25 mm. The ends have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 40 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 24 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 39–24 mm (Length: 100 mm) (📦 #9339)

1 object(s) - format STL
Tubing adapter STL file ⌀ 39–24 mm (Length: 100 mm)
Straight tube coupler ⌀39 mm to ⌀24 mm in STL format. Final length of this coupler is 100 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a 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 39 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 24 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 80–70 mm (Length: 40 mm) (📦 #1854)

1 object(s) - format STL
Tube adapter STL file ⌀ 80–70 mm (Length: 40 mm)
Tube coupler ⌀80 mm to ⌀70 mm in STL 3D format. Length of this reducer is 40 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 10 mm, the smaller one of 25 mm. The ends are not rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 80 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 70 mm
side B thickness 4 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 80–70 mm (Length: 65 mm) (📦 #1263)

1 object(s) - format STL (5.0/5) 1 vote(s)
Tube adapter STL 3D file ⌀ 80–70 mm (Length: 65 mm)
Straight tube connector ⌀80 mm to ⌀70 mm in STL 3D format. Total length of this adapter is 65 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 25 mm. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 80 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 70 mm
side B thickness 4 mm
transition length 10 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 64–40 mm (Length: 80 mm) (📦 #6473)

1 object(s) - format STL
Tube adapter STL file ⌀ 64–40 mm (Length: 80 mm)
Inline tube junction ⌀64 mm to ⌀40 mm in STL 3D format. Final length of this adapter is 80 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a sleeve 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 64 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 40 mm
side B thickness 4 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 32–17 mm (Length: 70 mm) (📦 #9496)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 32–17 mm (Length: 70 mm)
Tubing reducer ⌀32 mm to ⌀17 mm in STL 3D format. Final length of this junction is 70 mm. The larger-diameter tube has a thickness of 5 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 30 mm. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 32 mm
side A thickness 5 mm
side B length 30 mm
side B outer diameter 17 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 64–49 mm (Length: 65 mm) (📦 #1230)

1 object(s) - format STL
Tube adapter STL file ⌀ 64–49 mm (Length: 65 mm)
Tube reducer ⌀64 mm to ⌀49 mm in STL format. Length of this coupler is 65 mm. The larger-diameter tube has a thickness of 4 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 25 mm as well. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 64 mm
side A thickness 4 mm
side B length 25 mm
side B outer diameter 49 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 48–32 mm (Length: 75 mm) (📦 #9506)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 48–32 mm (Length: 75 mm)
Tube fitting ⌀48 mm to ⌀32 mm in STL format. Length of this fitting is 75 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 30 mm. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 48 mm
side A thickness 4 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

Tubing adapter STL file ⌀ 67–36 mm (Length: 27 mm) (📦 #8360)

1 object(s) - format STL
Tubing adapter STL file ⌀ 67–36 mm (Length: 27 mm)
Straight tube coupler ⌀67 mm to ⌀36 mm in STL 3D format. Length of this adapter is 27 mm. The thickness of the tubes is identical: 5 mm. The larger-diameter tube has a sleeve length of 11 mm, the smaller one of 11 mm as well. The ends have a fillet on the outside.
Parameter Value Unit
side A length 11 mm
side A outer diameter 67 mm
side A thickness 5 mm
side B length 11 mm
side B outer diameter 36 mm
side B thickness 5 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on th...