Custom Tube adapter STL file ⌀ 250–50 mm (Length: 80 mm) 📦#3849

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Straight tube connector ⌀250 mm to ⌀50 mm in STL 3D format. Final length of this coupler is 80 mm. The larger-diameter tube has a thickness of 5 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 30 mm as well. The ends are raw.
Generation date: 2025-11-26
3D Model Tube adapter STL file ⌀ 250–50 mm (Length: 80 mm)

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  • inline-tube-adapter-lenA30mm-d_model3849-nb0_dd{id}.stl : 9.6 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 30 mm (≃1 3/16 in)
#2 side A outer diameter 250 mm (≃9.84 in)
#3 side A thickness 5 mm (≃3/16 in)
#4 side B length 30 mm (≃1 3/16 in)
#5 side B outer diameter 50 mm (≃1.97 in)
#6 side B thickness 3 mm (≃1/8 in)
#7 transition length 20 mm (≃0.79 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet no fillet
Metadata Value
inner diameter (side A) 240 mm (≃9 7/16 in)
inner diameter (side B) 44 mm (≃1.73 in)
total length 80 mm (≃3.15 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 ⌀ 200–50 mm (Length: 80 mm) (📦 #1483)

1 object(s) - format STL
Tube adapter STL file ⌀ 200–50 mm (Length: 80 mm)
Tube reducer ⌀200 mm to ⌀50 mm in STL 3D format. Total length of this junction 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 have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 200 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 50 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 198–56 mm (Length: 70 mm) (📦 #3101)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 198–56 mm (Length: 70 mm)
Inline fitting ⌀198 mm to ⌀56 mm in STL 3D format. Final length of this reducer 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 are raw.
Parameter Value Unit
side A length 25 mm
side A outer diameter 198 mm
side A thickness 3 mm
side B length 25 mm
side B outer diameter 56 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 225–80 mm (Length: 45 mm) (📦 #2952)

1 object(s) - format STL
Tube adapter STL file ⌀ 225–80 mm (Length: 45 mm)
Inline tube junction ⌀225 mm to ⌀80 mm in STL 3D format. Final length of this fitting is 45 mm. The larger-diameter tube has a thickness of 4 mm and a sleeve length of 20 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 20 mm as well. The axes of the tubes are offset by 1 mm. The ends have a fillet on the outside.
Parameter Value Unit
side A length 20 mm
side A outer diameter 225 mm
side A thickness 4 mm
side B length 20 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 5 mm
axis offset 1 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 250–100 mm (Length: 80 mm) (📦 #1537)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 250–100 mm (Length: 80 mm)
Inline fitting ⌀250 mm to ⌀100 mm in STL format. Total length of this adapter 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 have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 250 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 100 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 250–100 mm (Length: 90 mm) (📦 #6267)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 250–100 mm (Length: 90 mm)
Straight tube fitting ⌀250 mm to ⌀100 mm in STL 3D format. Length of this fitting is 90 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 250 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 100 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 200–100 mm (Length: 80 mm) (📦 #1536)

1 object(s) - format STL
Tube adapter STL file ⌀ 200–100 mm (Length: 80 mm)
Inline fitting ⌀200 mm to ⌀100 mm in STL format. Length of this adapter 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 have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 200 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 100 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 250–60 mm (Length: 80 mm) (📦 #1843)

1 object(s) - format STL
Tube adapter STL file ⌀ 250–60 mm (Length: 80 mm)
Inline tube reducer ⌀250 mm to ⌀60 mm in STL format. Length of this reducer is 80 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a 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 250 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 60 mm
side B thickness 2 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 200–100 mm (Length: 90 mm) (📦 #7844)

1 object(s) - format STL
Tube adapter STL file ⌀ 200–100 mm (Length: 90 mm)
Tubing adapter ⌀200 mm to ⌀100 mm in STL 3D format. Final length of this adapter is 90 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 30 mm. The ends are not rounded.
Parameter Value Unit
side A length 20 mm
side A outer diameter 200 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 100 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 256–10 mm (Length: 50 mm) (📦 #9617)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 256–10 mm (Length: 50 mm)
Inline tubing adapter ⌀256 mm to ⌀10 mm in STL 3D format. Final length of this fitting is 50 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 20 mm. The ends have no fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 256 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 10 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 160–80 mm (Length: 90 mm) (📦 #9715)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 160–80 mm (Length: 90 mm)
Straight tube coupler ⌀160 mm to ⌀80 mm in STL 3D format. Length of this reducer is 90 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 160 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 30 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 160–80 mm (Length: 65 mm) (📦 #9584)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 160–80 mm (Length: 65 mm)
Inline tube junction ⌀160 mm to ⌀80 mm in STL format. Length of this reducer is 65 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 160 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 160–72 mm (Length: 100 mm) (📦 #8275)

1 object(s) - format STL
Tube adapter STL file ⌀ 160–72 mm (Length: 100 mm)
Straight tubing adapter ⌀160 mm to ⌀72 mm in STL 3D format. Length of this connector is 100 mm. The larger-diameter tube has a thickness of 3 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 30 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 160 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 72 mm
side B thickness 4 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 159–72 mm (Length: 100 mm) (📦 #8276)

1 object(s) - format STL
Tube adapter STL file ⌀ 159–72 mm (Length: 100 mm)
Diameter adapter ⌀159 mm to ⌀72 mm in STL format. Final length of this coupler is 100 mm. The larger-diameter tube has a thickness of 3 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 30 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 159 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 72 mm
side B thickness 4 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 200–90 mm (Length: 65 mm) (📦 #7341)

1 object(s) - format STL
Tubing adapter STL file ⌀ 200–90 mm (Length: 65 mm)
Tube adapter ⌀200 mm to ⌀90 mm in STL 3D format. Length of this reducer is 65 mm. The larger-diameter tube has a thickness of 8 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 30 mm as well. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 200 mm
side A thickness 8 mm
side B length 30 mm
side B outer diameter 90 mm
side B thickness 4 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 154–80 mm (Length: 90 mm) (📦 #7468)

1 object(s) - format STL
Tube adapter STL file ⌀ 154–80 mm (Length: 90 mm)
Inline tube adapter ⌀154 mm to ⌀80 mm in STL 3D format. Total length of this fitting is 90 mm. The larger-diameter tube has a thickness of 3.9 mm and a sleeve length of 30 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 30 mm as well. The ends are rounded on the outside to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 154 mm
side A thickness 3.9 mm
side B length 30 mm
side B outer diameter 80 mm
side B thickness 4 mm
transition length 30 mm
axis offset 0 mm
ends fillet fillet on th...

Tubing adapter STL file ⌀ 160–80 mm (Length: 120 mm) (📦 #9714)

1 object(s) - format STL
Tubing adapter STL file ⌀ 160–80 mm (Length: 120 mm)
Straight tube reducer ⌀160 mm to ⌀80 mm in STL 3D format. Final 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 raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 160 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 160–80 mm (Length: 100 mm) (📦 #8274)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 160–80 mm (Length: 100 mm)
Straight sleeve ⌀160 mm to ⌀80 mm in STL 3D format. Final length of this reducer is 100 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 30 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 30 mm as well. The ends are raw.
Parameter Value Unit
side A length 30 mm
side A outer diameter 160 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 80 mm
side B thickness 4 mm
transition length 40 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 168–80 mm (Length: 140 mm) (📦 #9601)

1 object(s) - format STL
Tubing adapter STL file ⌀ 168–80 mm (Length: 140 mm)
Straight tube coupler ⌀168 mm to ⌀80 mm in STL format. Length of this fitting is 140 mm. The larger-diameter tube has a thickness of 4 mm and a length of 40 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 40 mm as well. The ends are raw.
Parameter Value Unit
side A length 40 mm
side A outer diameter 168 mm
side A thickness 4 mm
side B length 40 mm
side B outer diameter 80 mm
side B thickness 3 mm
transition length 60 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 183–90 mm (Length: 117 mm) (📦 #1959)

1 object(s) - format STL
Tube adapter STL file ⌀ 183–90 mm (Length: 117 mm)
Tube adapter ⌀183 mm to ⌀90 mm in STL 3D format. Length of this sleeve is 117 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 50 mm, the smaller one of 17 mm. The ends are not rounded.
Parameter Value Unit
side A length 50 mm
side A outer diameter 183 mm
side A thickness 3 mm
side B length 17 mm
side B outer diameter 90 mm
side B thickness 3 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 200–110 mm (Length: 140 mm) (📦 #9791)

1 object(s) - format STL
Tube adapter STL file ⌀ 200–110 mm (Length: 140 mm)
Tube reducer ⌀200 mm to ⌀110 mm in STL format. Final length of this sleeve is 140 mm. The thickness of the tubes is identical: 4 mm. The larger-diameter tube has a length of 60 mm, the smaller one of 60 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 60 mm
side A outer diameter 200 mm
side A thickness 4 mm
side B length 60 mm
side B outer diameter 110 mm
side B thickness 4 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL file ⌀ 156–100 mm (Length: 60 mm) (📦 #8692)

1 object(s) - format STL
Tubing adapter STL file ⌀ 156–100 mm (Length: 60 mm)
Tube junction ⌀156 mm to ⌀100 mm in STL format. Total length of this fitting is 60 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 156 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 100 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 140–75 mm (Length: 65 mm) (📦 #9600)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 140–75 mm (Length: 65 mm)
Straight sleeve ⌀140 mm to ⌀75 mm in STL 3D format. Final length of this fitting is 65 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 140 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 75 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL file ⌀ 123–58 mm (Length: 85 mm) (📦 #2027)

1 object(s) - format STL
Tube adapter STL file ⌀ 123–58 mm (Length: 85 mm)
Tube fitting ⌀123 mm to ⌀58 mm in STL format. Length of this sleeve is 85 mm. The larger-diameter tube has a thickness of 5 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 4 mm and a length of 25 mm as well. The ends are not rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 123 mm
side A thickness 5 mm
side B length 25 mm
side B outer diameter 58 mm
side B thickness 4 mm
transition length 35 mm
axis offset 0 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 150–30 mm (Length: 110 mm) (📦 #4716)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 150–30 mm (Length: 110 mm)
Inline tube reducer ⌀150 mm to ⌀30 mm in STL format. Length of this reducer is 110 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 have no fillet.
Parameter Value Unit
side A length 30 mm
side A outer diameter 150 mm
side A thickness 3 mm
side B length 30 mm
side B outer diameter 30 mm
side B thickness 3 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet

Tube adapter STL 3D file ⌀ 163–80 mm (Length: 110 mm) (📦 #6417)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 163–80 mm (Length: 110 mm)
Tube fitting ⌀163 mm to ⌀80 mm in STL format. Total length of this sleeve is 110 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 50 mm. The axes of the tubes are off-center by 10 mm. The ends are raw.
Parameter Value Unit
side A length 20 mm
side A outer diameter 163 mm
side A thickness 4 mm
side B length 50 mm
side B outer diameter 80 mm
side B thickness 4 mm
transition length 40 mm
axis offset 10 mm
ends fillet no fillet

Tubing adapter STL 3D file ⌀ 203–116 mm (Length: 120 mm) (📦 #10059)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 203–116 mm (Length: 120 mm)
Tube fitting ⌀203 mm to ⌀116 mm in STL 3D format. Final length of this reducer is 120 mm. The larger-diameter tube has a thickness of 3 mm and a length of 30 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 40 mm. The ends are not rounded.
Parameter Value Unit
side A length 30 mm
side A outer diameter 203 mm
side A thickness 3 mm
side B length 40 mm
side B outer diameter 116 mm
side B thickness 2 mm
transition length 50 mm
axis offset 0 mm
ends fillet no fillet