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Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 50×50 mm, thickness 2 mm 📦#1891

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Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀50 mm and a rectangular section with internal dimensions 50×50 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Generation date: 2025-09-20
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀50 mm to 50×50 mm, thickness 2 mm

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  • round-to-rectangular-adapter-d_model1891-nb0_dd{id}.stl : 784.8 Ko
STL Mesh quality : Linear deflection 0.0005 Angular deflection 0.05
No compliance warranty No compliance warranty
(Internal and private use, non-commercial – no distribution – no derivatives)
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Values for this model

This model was generated by the Round to rectangular adapter template, with the following values:
Parameter Value
#1 cylinder outer diameter 50 mm
#2 cylinder inlet length 25 mm
#3 rectangle internal length 50 mm
#4 rectangle internal height 50 mm
#5 rectangle inlet length 15 mm
#6 offset Z 0 mm
#7 offset Y 0 mm
#8 total length 100 mm
#9 thickness 2 mm
#10 chamfer no chamfer
illustration of the parameters
Representation of the parameters

  • If the chamfer option on the ends is enabled, the chamfer length is equal to half the thickness.
  • The stop at the bottom of the rectangular section has a width equal to half the thickness.

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

Parameter Label
#1 cylinder outer diameter diaC
#2 cylinder inlet length lentC
#3 rectangle internal length lenIR
#4 rectangle internal height heiIR
#5 rectangle inlet length lentR
#6 offset Z ofsZ
#7 offset Y ofsY
#8 total length lenT
#9 thickness thi
#10 chamfer cha

Related 3D models

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

Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀50 mm and a rectangular section with inner dimensions 32×32 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 32 mm
rectangle internal height 32 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀43 mm and a rectangular section with internal dimensions 25×6 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 43 mm
cylinder inlet length 25 mm
rectangle internal length 25 mm
rectangle internal height 6 mm
rectangle inlet length 19 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 50×50 mm. The wall thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 25 mm
rectangle internal length 50 mm
rectangle internal height 50 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 60×60 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 25 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀65 mm and a rectangular section with inner dimensions 50×63 mm. The shell thickness is 2 mm and the overall length is 80 mm. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 30 mm
rectangle internal length 50 mm
rectangle internal height 63 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀30 mm and a rectangular section with inner dimensions 29×19 mm. The shell thickness is 2 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 30 mm
cylinder inlet length 20 mm
rectangle internal length 29 mm
rectangle internal height 19 mm
rectangle inlet length 8 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 30×30 mm. The shell thickness is 2 mm and the total length is 100 mm. The adapter has an offset of 2 mm along the Y axis and 2 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 30 mm
rectangle internal height 30 mm
rectangle inlet length 20 mm
offset Z 2 mm
offset Y 2 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀30.5 mm and a rectangular section with internal dimensions 27×15 mm. The shell thickness is 2 mm and the total length is 50 mm.
Parameter Value Unit
cylinder outer diameter 30.5 mm
cylinder inlet length 20 mm
rectangle internal length 27 mm
rectangle internal height 15 mm
rectangle inlet length 8 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 2 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀52 mm and a rectangular section with inner dimensions 77×33 mm. The wall thickness is 2 mm and the total length is 100 mm. A chamfer is applied on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 52 mm
cylinder inlet length 20 mm
rectangle internal length 77 mm
rectangle internal height 33 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfer on t...
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀50 mm and a rectangular section with inner dimensions 35×25 mm. The wall thickness is 3 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 50 mm
cylinder inlet length 25 mm
rectangle internal length 35 mm
rectangle internal height 25 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀20 mm and a rectangular section with inner dimensions 20×20 mm. The wall thickness is 2 mm and the overall length is 60 mm. The adapter has an offset of 10 mm along the Y axis and 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 20 mm
rectangle internal length 20 mm
rectangle internal height 20 mm
rectangle inlet length 20 mm
offset Z 10 mm
offset Y 10 mm
total length 60 mm
thickness 2 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀60 mm and a rectangular section with internal dimensions 60×30 mm. The wall thickness is 2 mm and the total length is 80 mm. A chamfer is present on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 10 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀65 mm and a rectangular section with inner dimensions 60×30 mm. The wall thickness is 2 mm and the overall length is 80 mm. A chamfer is present on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 65 mm
cylinder inlet length 10 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀70 mm and a rectangular section with internal dimensions 60×30 mm. The wall thickness is 2 mm and the total length is 80 mm. A chamfer is present on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 70 mm
cylinder inlet length 10 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 2 mm
chamfer chamfer on t...
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 50×50 mm. The shell thickness is 2 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 25 mm
rectangle internal length 50 mm
rectangle internal height 50 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀32 mm and a rectangular section with inner dimensions 35×20 mm. The shell thickness is 3 mm and the overall length is 60 mm. The adapter has an offset of 2 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 15 mm
rectangle internal length 35 mm
rectangle internal height 20 mm
rectangle inlet length 20 mm
offset Z 2 mm
offset Y 0 mm
total length 60 mm
thickness 3 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀90 mm and a rectangular section with inner dimensions 60×60 mm. The wall thickness is 3 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 20 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 3 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀32 mm and a rectangular section with inner dimensions 35×20 mm. The wall thickness is 3 mm and the total length is 60 mm. The adapter has an offset of 5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 32 mm
cylinder inlet length 15 mm
rectangle internal length 35 mm
rectangle internal height 20 mm
rectangle inlet length 20 mm
offset Z 5 mm
offset Y 0 mm
total length 60 mm
thickness 3 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀20 mm and a rectangular section with inner dimensions 50×30 mm. The shell thickness is 3 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 30 mm
rectangle internal length 50 mm
rectangle internal height 30 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with internal dimensions 60×30 mm. The wall thickness is 3 mm and the overall length is 90 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 30 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 90 mm
thickness 3 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 100×50 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 20 mm
offset Z 3 mm
offset Y 3 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀26 mm and a rectangular section with internal dimensions 35×20 mm. The wall thickness is 3 mm and the overall length is 60 mm. The adapter has an offset of 12.5 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 26 mm
cylinder inlet length 15 mm
rectangle internal length 35 mm
rectangle internal height 20 mm
rectangle inlet length 20 mm
offset Z 12.5 mm
offset Y 0 mm
total length 60 mm
thickness 3 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀80 mm and a rectangular section with inner dimensions 80×80 mm. The shell thickness is 3 mm and the overall length is 50 mm.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 15 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 3 mm
chamfer no chamfer
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀20 mm and a rectangular section with inner dimensions 10×5 mm. The shell thickness is 3 mm and the overall length is 60 mm.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 30 mm
rectangle internal length 10 mm
rectangle internal height 5 mm
rectangle inlet length 10 mm
offset Z 0 mm
offset Y 0 mm
total length 60 mm
thickness 3 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀75 mm and a rectangular section with inner dimensions 102×102 mm. The wall thickness is 3 mm and the total length is 68 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 30 mm
rectangle internal length 102 mm
rectangle internal height 102 mm
rectangle inlet length 18 mm
offset Z 0 mm
offset Y 0 mm
total length 68 mm
thickness 3 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀40 mm and a rectangular section with inner dimensions 100×100 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 1 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 10 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 9 mm
offset Z 0 mm
offset Y 1 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀75 mm and a rectangular section with inner dimensions 105×105 mm. The shell thickness is 3 mm and the overall length is 80 mm.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 30 mm
rectangle internal length 105 mm
rectangle internal height 105 mm
rectangle inlet length 19 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀108 mm and a rectangular section with internal dimensions 25×76 mm. The shell thickness is 3 mm and the total length is 78 mm.
Parameter Value Unit
cylinder outer diameter 108 mm
cylinder inlet length 26 mm
rectangle internal length 25 mm
rectangle internal height 76 mm
rectangle inlet length 26 mm
offset Z 0 mm
offset Y 0 mm
total length 78 mm
thickness 3 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀95 mm and a rectangular section with inner dimensions 110×110 mm. The shell thickness is 2 mm and the overall length is 100 mm.
Parameter Value Unit
cylinder outer diameter 95 mm
cylinder inlet length 50 mm
rectangle internal length 110 mm
rectangle internal height 110 mm
rectangle inlet length 5 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀80 mm and a rectangular section with internal dimensions 80×80 mm. The wall thickness is 3 mm and the total length is 50 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 15 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 15 mm
offset Z 0 mm
offset Y 0 mm
total length 50 mm
thickness 3 mm
chamfer chamfer on t...