Tube adapter ⌀ 50–30 mm (Length: 95 mm) 📦#1314

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Inline tube junction ⌀50 mm to ⌀30 mm in STL format. Total length of this reducer is 95 mm. The thickness of the larger diameter tube is 5 mm, and the smaller one is 3 mm. The ends have a fillet to ease the connection.
Generation date: 2025-08-02
3D Model Tube adapter ⌀ 50–30 mm (Length: 95 mm)

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  • inline-tube-adapter-lenA30mm-d_model1314-nb0_dd{id}.stl : 8.3 Mo
STL Mesh quality : not defined
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Values for this model

This model was generated by the Inline tube adapter template, with the following values:
Template parameter Value Unit Label
#1 side A length 30 mm lenA
#2 side A outer diameter 50 mm diA
#3 side A thickness 5 mm thA
#4 side B length 50 mm lenB
#5 side B outer diameter 30 mm diB
#6 side B thickness 3 mm thB
#7 transition length 15 mm tra
#8 axis offset 0 mm ofs
#9 ends fillet 3 0,1,2,3 fil
illustration of the parameters
Representation of the parameters

The transition refers to the connection interface between the two tubes. It defines the total length of the adapter, which is equal to the sum of the tube lengths plus the length of the transition.

Details for parameter #9 ends fillet:

  • 0: no fillet
  • 1: fillet on the outside
  • 2: fillet on the inside
  • 3: fillet on both inside and outside

Related 3D models

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

Tube adapter ⌀ 51–35 mm (Length: 75 mm) (📦 #1289)

1 object(s) - format STL
Diameter adapter ⌀51 mm to ⌀35 mm in STL format. Length of this coupler is 75 mm. The thickness of the larger diameter tube is 6 mm, and the smaller one is 3 mm. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length30mm
side A outer diameter51mm
side A thickness6mm
side B length30mm
side B outer diameter35mm
side B thickness3mm
transition length15mm
axis offset0mm
ends fillet30,1,2,3

Tube adapter ⌀ 51–35 mm (Length: 80 mm) (📦 #1290)

1 object(s) - format STL
Tube reducer ⌀51 mm to ⌀35 mm in STL format. Final length of this adapter is 80 mm. The thickness of the tubes is identical: 3 mm. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length30mm
side A outer diameter51mm
side A thickness3mm
side B length30mm
side B outer diameter35mm
side B thickness3mm
transition length20mm
axis offset0mm
ends fillet30,1,2,3

Tube adapter ⌀ 80–50 mm (Length: 120 mm) (📦 #1146)

1 object(s) - format STL
Tube reducer ⌀80 mm to ⌀50 mm in STL format. Total length of this adapter is 120 mm. The thickness of the tubes is identical: 5 mm. The two axes of the tubes are off-center. The ends are rounded.
Parameter Value Unit
side A length50mm
side A outer diameter80mm
side A thickness5mm
side B length40mm
side B outer diameter50mm
side B thickness5mm
transition length30mm
axis offset14.9mm
ends fillet30,1,2,3

Tube adapter ⌀ 50–40 mm (Length: 45 mm ) (📦 #1094)

1 object(s) - format STL (5.0/5) 2 vote(s)
Inline tube junction ⌀50 to ⌀40 mm in STL format. Length of this connector is 45 mm. The thickness of the larger diameter tube is 4 mm, and the smaller one is 3 mm. The ends have a fillet on the outside to make tube connection easier.
Parameter Value Unit
side A length20mm
side A outer diameter50mm
side A thickness4mm
side B length20mm
side B outer diameter40mm
side B thickness3mm
transition length5mm
axis offset0mm
ends fillet10,1,2,3

Tube adapter ⌀ 25–20 mm (Length: 45 mm) (📦 #1101)

1 object(s) - format STL
Tube reducer ⌀25 mm to ⌀20 mm in STL format. Length of this reducer is 45 mm. The thickness of the tubes is identical: 3 mm. The ends are rounded on the inside to make tube connection easier.
Parameter Value Unit
side A length15mm
side A outer diameter25mm
side A thickness3mm
side B length15mm
side B outer diameter20mm
side B thickness3mm
transition length15mm
axis offset0mm
ends fillet20,1,2,3

Tube adapter ⌀ 60–40 mm (Length: 85 mm) (📦 #1123)

1 object(s) - format STL
Straight sleeve ⌀60 mm to ⌀40 mm in STL format. Total length of this reducer is 85 mm. The thickness of the tubes is identical: 3 mm. The axes of the tubes are offset. The ends feature an external fillet to make tube connection easier.
Parameter Value Unit
side A length40mm
side A outer diameter60mm
side A thickness3mm
side B length40mm
side B outer diameter40mm
side B thickness3mm
transition length5mm
axis offset1mm
ends fillet10,1,2,3

Tube adapter ⌀ 50–40 mm (Length: 100 mm) (📦 #1125)

1 object(s) - format STL (4.0/5) 1 vote(s)
Diameter adapter ⌀50 mm to ⌀40 mm in STL format. Final length of this fitting is 100 mm. The thickness of the tubes is identical: 2 mm. The ends are rounded to facilitate the connection of the two tubes.
Parameter Value Unit
side A length40mm
side A outer diameter50mm
side A thickness2mm
side B length40mm
side B outer diameter40mm
side B thickness2mm
transition length20mm
axis offset0mm
ends fillet30,1,2,3

Tube adapter ⌀ 50–40 mm (Length: 50 mm) (📦 #1124)

1 object(s) - format STL
Straight tube coupler ⌀50 mm to ⌀40 mm in STL format. Length of this reducer is 50 mm. The thickness of the tubes is identical: 2 mm. The ends have a fillet.
Parameter Value Unit
side A length20mm
side A outer diameter50mm
side A thickness2mm
side B length20mm
side B outer diameter40mm
side B thickness2mm
transition length10mm
axis offset0mm
ends fillet30,1,2,3

Tube adapter ⌀ 80–75 mm (Length: 111 mm) (📦 #1214)

1 object(s) - format STL
Tube connector ⌀80 mm to ⌀75 mm in STL format. Final length of this adapter is 111 mm. The thickness of the tubes is identical: 3 mm. The ends are rounded on the outside to make tube connection easier.
Parameter Value Unit
side A length46mm
side A outer diameter80mm
side A thickness3mm
side B length45mm
side B outer diameter75mm
side B thickness3mm
transition length20mm
axis offset0mm
ends fillet10,1,2,3

Tube adapter ⌀ 16–12 mm (Length: 35 mm) (📦 #1097)

1 object(s) - format STL
Inline fitting ⌀16 mm to ⌀12 mm in STL format. Final length of this fitting is 35 mm. The thickness of the tubes is identical: 2 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length15mm
side A outer diameter16mm
side A thickness2mm
side B length15mm
side B outer diameter12mm
side B thickness2mm
transition length5mm
axis offset0mm
ends fillet30,1,2,3

Tube adapter ⌀ 38–10 mm (Length: 90 mm) (📦 #1269)

1 object(s) - format STL
Tube connector ⌀38 mm to ⌀10 mm in STL format. Final length of this fitting is 90 mm. The thickness of the larger diameter tube is 2.5 mm, and the smaller one is 2 mm. The ends are rounded on the outside.
Parameter Value Unit
side A length30mm
side A outer diameter38mm
side A thickness2.5mm
side B length30mm
side B outer diameter10mm
side B thickness2mm
transition length30mm
axis offset0mm
ends fillet10,1,2,3

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

1 object(s) - format STL
Inline tube adapter ⌀64 mm to ⌀49 mm in STL format. Final length of this coupler is 65 mm. The thickness of the larger diameter tube is 4 mm, and the smaller one is 3 mm. The ends are raw.
Parameter Value Unit
side A length25mm
side A outer diameter64mm
side A thickness4mm
side B length25mm
side B outer diameter49mm
side B thickness3mm
transition length15mm
axis offset0mm
ends fillet00,1,2,3

Tube adapter ⌀ 76–50 mm (Length: 60 mm) (📦 #1358)

1 object(s) - format STL (5.0/5) 1 vote(s)
Straight tube fitting ⌀76 mm to ⌀50 mm in STL format. Final length of this adapter is 60 mm. The thickness of the tubes is identical: 2 mm. The ends are rounded on the inside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length20mm
side A outer diameter76mm
side A thickness2mm
side B length20mm
side B outer diameter50mm
side B thickness2mm
transition length20mm
axis offset0mm
ends fillet20,1,2,3

Tube adapter ⌀ 78–50 mm (Length: 80 mm) (📦 #1361)

1 object(s) - format STL
Straight tube fitting ⌀78 mm to ⌀50 mm in STL format. Final length of this connector is 80 mm. The thickness of the tubes is identical: 2 mm. The axes of the tubes are off-center. The ends have a fillet on the inside to ease the connection.
Parameter Value Unit
side A length40mm
side A outer diameter78mm
side A thickness2mm
side B length20mm
side B outer diameter50mm
side B thickness2mm
transition length20mm
axis offset1mm
ends fillet20,1,2,3

Tube adapter ⌀ 78–50 mm (Length: 60 mm) (📦 #1360)

1 object(s) - format STL
Tube reducer ⌀78 mm to ⌀50 mm in STL format. Total length of this sleeve is 60 mm. The thickness of the tubes is identical: 2 mm. The axes of the tubes are off-center. The ends are rounded on the inside to make tube connection easier.
Parameter Value Unit
side A length20mm
side A outer diameter78mm
side A thickness2mm
side B length20mm
side B outer diameter50mm
side B thickness2mm
transition length20mm
axis offset1mm
ends fillet20,1,2,3

Tube adapter ⌀ 80–50 mm (Length: 60 mm) (📦 #1359)

1 object(s) - format STL
Tube adapter ⌀80 mm to ⌀50 mm in STL format. Final length of this fitting is 60 mm. The thickness of the tubes is identical: 2 mm. The axes of the tubes are off-center. The ends feature an internal fillet.
Parameter Value Unit
side A length20mm
side A outer diameter80mm
side A thickness2mm
side B length20mm
side B outer diameter50mm
side B thickness2mm
transition length20mm
axis offset1mm
ends fillet20,1,2,3

Tube adapter ⌀ 86–81 mm (Length: 111 mm) (📦 #1215)

1 object(s) - format STL (5.0/5) 1 vote(s)
Inline tube junction ⌀86 mm to ⌀81 mm in STL format. Final length of this adapter is 111 mm. The thickness of the tubes is identical: 3 mm. The ends are rounded on the outside to ease the connection.
Parameter Value Unit
side A length46mm
side A outer diameter86mm
side A thickness3mm
side B length45mm
side B outer diameter81mm
side B thickness3mm
transition length20mm
axis offset0mm
ends fillet10,1,2,3

Tube adapter ⌀ 64–49 mm (Length: 63 mm) (📦 #1229)

1 object(s) - format STL
Tube reducer ⌀64 mm to ⌀49 mm in STL format. Final length of this fitting is 63 mm. The thickness of the tubes is identical: 4 mm. The ends are not rounded.
Parameter Value Unit
side A length25mm
side A outer diameter64mm
side A thickness4mm
side B length25mm
side B outer diameter49mm
side B thickness4mm
transition length13mm
axis offset0mm
ends fillet00,1,2,3

Tube adapter ⌀ 100–50 mm (Length: 100 mm) (📦 #1470)

1 object(s) - format STL
Straight tube coupler ⌀100 mm to ⌀50 mm in STL format. Length of this adapter is 100 mm. The thickness of the tubes is identical: 2 mm. The ends are rounded to facilitate the connection of the two tubes.
Parameter Value Unit
side A length30mm
side A outer diameter100mm
side A thickness2mm
side B length30mm
side B outer diameter50mm
side B thickness2mm
transition length40mm
axis offset0mm
ends fillet30,1,2,3

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

1 object(s) - format STL
Tube adapter ⌀68 mm to ⌀52 mm in STL format. Length of this coupler is 65 mm. The thickness of the tubes is identical: 4 mm. The ends are not rounded.
Parameter Value Unit
side A length25mm
side A outer diameter68mm
side A thickness4mm
side B length25mm
side B outer diameter52mm
side B thickness4mm
transition length15mm
axis offset0mm
ends fillet00,1,2,3

Tube adapter ⌀ 120–90 mm (Length: 75 mm) (📦 #1164)

1 object(s) - format STL
Inline tube coupler ⌀120 mm to ⌀90 mm in STL format. Final length of this connector is 75 mm. The thickness of the larger diameter tube is 4 mm, and the smaller one is 3 mm. The ends have a fillet on the outside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length25mm
side A outer diameter120mm
side A thickness4mm
side B length30mm
side B outer diameter90mm
side B thickness3mm
transition length20mm
axis offset0mm
ends fillet10,1,2,3

Tube adapter ⌀ 68–53 mm (Length: 65 mm) (📦 #1233)

1 object(s) - format STL
Inline tube adapter ⌀68 mm to ⌀53 mm in STL format. Final length of this reducer is 65 mm. The thickness of the tubes is identical: 4 mm. The ends have no fillet.
Parameter Value Unit
side A length25mm
side A outer diameter68mm
side A thickness4mm
side B length25mm
side B outer diameter53mm
side B thickness4mm
transition length15mm
axis offset0mm
ends fillet00,1,2,3

Tube adapter ⌀ 60–45 mm (Length: 100 mm) (📦 #1228)

1 object(s) - format STL
Straight tube coupler ⌀60 mm to ⌀45 mm in STL format. Total length of this connector is 100 mm. The thickness of the tubes is identical: 4 mm. The ends have no fillet.
Parameter Value Unit
side A length50mm
side A outer diameter60mm
side A thickness4mm
side B length30mm
side B outer diameter45mm
side B thickness4mm
transition length20mm
axis offset0mm
ends fillet00,1,2,3

Tube adapter ⌀ 81–55 mm (Length: 80 mm) (📦 #1440)

1 object(s) - format STL
Diameter adapter ⌀81 mm to ⌀55 mm in STL format. Final length of this adapter is 80 mm. The thickness of the tubes is identical: 2.5 mm. The ends feature an external fillet.
Parameter Value Unit
side A length25mm
side A outer diameter81mm
side A thickness2.5mm
side B length25mm
side B outer diameter55mm
side B thickness2.5mm
transition length30mm
axis offset0mm
ends fillet10,1,2,3

Tube adapter ⌀ 100–50 mm (Length: 90 mm) (📦 #1454)

1 object(s) - format STL
Diameter adapter ⌀100 mm to ⌀50 mm in STL format. Final length of this sleeve is 90 mm. The thickness of the tubes is identical: 2 mm. The ends are rounded on the inside to ease the connection.
Parameter Value Unit
side A length30mm
side A outer diameter100mm
side A thickness2mm
side B length30mm
side B outer diameter50mm
side B thickness2mm
transition length30mm
axis offset0mm
ends fillet20,1,2,3

Tube adapter ⌀ 100–50 mm (Length: 100 mm) (📦 #1451)

1 object(s) - format STL
Tube connector ⌀100 mm to ⌀50 mm in STL format. Total length of this adapter is 100 mm. The thickness of the tubes is identical: 2 mm. The ends feature an internal fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length30mm
side A outer diameter100mm
side A thickness2mm
side B length30mm
side B outer diameter50mm
side B thickness2mm
transition length40mm
axis offset0mm
ends fillet20,1,2,3

Tube adapter ⌀ 80–75 mm (Length: 100 mm) (📦 #1220)

1 object(s) - format STL
Tube junction ⌀80 mm to ⌀75 mm in STL format. Final length of this adapter is 100 mm. The thickness of the tubes is identical: 2.5 mm. The axes of the tubes are offset. The ends are rounded on the outside to ease the connection.
Parameter Value Unit
side A length45mm
side A outer diameter80mm
side A thickness2.5mm
side B length45mm
side B outer diameter75mm
side B thickness2.5mm
transition length10mm
axis offset2.4mm
ends fillet10,1,2,3

Tube adapter ⌀ 80–75 mm (Length: 111 mm) (📦 #1218)

1 object(s) - format STL
Inline fitting ⌀80 mm to ⌀75 mm in STL format. Total length of this sleeve is 111 mm. The thickness of the tubes is identical: 2.5 mm. The axes of the tubes are offset. The ends have a fillet on the outside.
Parameter Value Unit
side A length46mm
side A outer diameter80mm
side A thickness2.5mm
side B length45mm
side B outer diameter75mm
side B thickness2.5mm
transition length20mm
axis offset2.4mm
ends fillet10,1,2,3

Tube adapter ⌀ 80–75 mm (Length: 101 mm) (📦 #1219)

1 object(s) - format STL
Diameter adapter ⌀80 mm to ⌀75 mm in STL format. Final length of this adapter is 101 mm. The thickness of the tubes is identical: 2.5 mm. The axes of the tubes are offset. The ends are rounded on the outside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length46mm
side A outer diameter80mm
side A thickness2.5mm
side B length45mm
side B outer diameter75mm
side B thickness2.5mm
transition length10mm
axis offset2.4mm
ends fillet10,1,2,3