Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀155 mm to 204×60 mm, thickness 4 mm 📦#10915

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Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀155 mm and a rectangular section with internal dimensions 204×60 mm. The shell thickness is 4 mm and the overall length is 175 mm. A chamfer is applied on the outside of the cylindrical end.
Generation date: 2026-08-12
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀155 mm to 204×60 mm, thickness 4 mm

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  • round-to-rectangular-adapter-d_model10915-nb0_dd{id}.stl : 1.9 Mo
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 155 mm (≃6.10 in)
#2 cylinder inlet length 50 mm (≃1.97 in)
#3 rectangle internal length 204 mm (≃8.03 in)
#4 rectangle internal height 60 mm (≃2 3/8 in)
#5 rectangle inlet length 50 mm (≃1.97 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 175 mm (≃6 7/8 in)
#9 thickness 4 mm (≃0.16 in)
#10 chamfer chamfer on the outside
of the cylindrical tube
Metadata Value
Cylinder internal diameter 147 mm (≃5.79 in)
illustration of the parameters
Parameter overview

  • 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

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

3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀150 mm and a rectangular section with internal dimensions 200×80 mm. The wall thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 200 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀148 mm and a rectangular section with inner dimensions 228×80 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 50 mm
rectangle internal length 228 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀161 mm and a rectangular section with internal dimensions 204×60 mm. The shell thickness is 3 mm and the overall length is 200 mm. A chamfer is present on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 161 mm
cylinder inlet length 60 mm
rectangle internal length 204 mm
rectangle internal height 60 mm
rectangle inlet length 60 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfer on t...
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀125 mm and a rectangular section with internal dimensions 220×55 mm. The wall thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 50 mm
rectangle internal length 220 mm
rectangle internal height 55 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀160 mm and a rectangular section with internal dimensions 180×110 mm. The wall thickness is 5 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 160 mm
cylinder inlet length 50 mm
rectangle internal length 180 mm
rectangle internal height 110 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 5 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀142 mm and a rectangular section with internal dimensions 130×90 mm. The wall thickness is 4 mm and the total length is 110 mm.
Parameter Value Unit
cylinder outer diameter 142 mm
cylinder inlet length 40 mm
rectangle internal length 130 mm
rectangle internal height 90 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 110 mm
thickness 4 mm
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Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀124 mm and a rectangular section with inner dimensions 224×94 mm. The shell thickness is 3 mm and the overall length is 130 mm.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 50 mm
rectangle internal length 224 mm
rectangle internal height 94 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 130 mm
thickness 3 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀101.6 mm and a rectangular section with internal dimensions 152.4×57 mm. The wall thickness is 3 mm and the total length is 152.4 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 101.6 mm
cylinder inlet length 51 mm
rectangle internal length 152.4 mm
rectangle internal height 57 mm
rectangle inlet length 51 mm
offset Z 0 mm
offset Y 0 mm
total length 152.4 mm
thickness 3 mm
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3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀150 mm and a rectangular section with internal dimensions 200×115 mm. The shell thickness is 4 mm and the total length is 200 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 200 mm
rectangle internal height 115 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 4 mm
chamfer chamfers on ...
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀160 mm and a rectangular section with inner dimensions 240×100 mm. The shell thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 160 mm
cylinder inlet length 50 mm
rectangle internal length 240 mm
rectangle internal height 100 mm
rectangle inlet length 70 mm
offset Z 0 mm
offset Y 0 mm
total length 200 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 ⌀145 mm and a rectangular section with internal dimensions 230×130 mm. The shell thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 145 mm
cylinder inlet length 50 mm
rectangle internal length 230 mm
rectangle internal height 130 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀150 mm and a rectangular section with inner dimensions 256×44 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 55 mm
rectangle internal length 256 mm
rectangle internal height 44 mm
rectangle inlet length 30 mm
offset Z 10 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀148 mm and a rectangular section with internal dimensions 228×80 mm. The shell thickness is 3 mm and the overall length is 150 mm. The adapter has an offset of 12 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 50 mm
rectangle internal length 228 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 12 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀150 mm and a rectangular section with internal dimensions 200×60 mm. The shell thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 200 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 ⌀150 mm and a rectangular section with inner dimensions 300×20 mm. The wall thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 5 mm along the Y axis and 5 mm along the Z axis. A chamfer is present on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 300 mm
rectangle internal height 20 mm
rectangle inlet length 50 mm
offset Z 5 mm
offset Y 5 mm
total length 200 mm
thickness 3 mm
chamfer chamfer on t...
File in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀150 mm and a rectangular section with internal dimensions 300×40 mm. The wall thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 300 mm
rectangle internal height 40 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀150 mm and a rectangular section with inner dimensions 150×30 mm. The wall thickness is 3 mm and the overall length is 100 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 40 mm
rectangle internal length 150 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 chamfer on t...
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀150 mm and a rectangular section with internal dimensions 150×80 mm. The shell thickness is 3 mm and the overall length is 150 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 150 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 3 mm
offset Y 3 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀158 mm and a rectangular section with internal dimensions 190×110 mm. The wall thickness is 4 mm and the overall length is 118.4 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 158 mm
cylinder inlet length 43 mm
rectangle internal length 190 mm
rectangle internal height 110 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 118.4 mm
thickness 4 mm
chamfer chamfers on ...
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀149.8 mm and a rectangular section with inner dimensions 250×80 mm. The wall thickness is 3 mm and the total length is 140 mm. The adapter has an offset of 20 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 149.8 mm
cylinder inlet length 50 mm
rectangle internal length 250 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 20 mm
offset Y 0 mm
total length 140 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 ⌀125 mm and a rectangular section with internal dimensions 200×60 mm. The shell thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀150 mm and a rectangular section with internal dimensions 150×30 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 150 mm
rectangle internal height 30 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀150 mm and a rectangular section with inner dimensions 100×49 mm. The wall thickness is 4 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. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 49 mm
rectangle inlet length 50 mm
offset Z 3 mm
offset Y 3 mm
total length 100 mm
thickness 4 mm
chamfer chamfer on t...
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀101 mm and a rectangular section with internal dimensions 250×38 mm. The wall thickness is 3 mm and the total length is 135 mm.
Parameter Value Unit
cylinder outer diameter 101 mm
cylinder inlet length 50 mm
rectangle internal length 250 mm
rectangle internal height 38 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 135 mm
thickness 3 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀150 mm and a rectangular section with internal dimensions 130×102 mm. The wall thickness is 4 mm and the total length is 100 mm.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 30 mm
rectangle internal length 130 mm
rectangle internal height 102 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 4 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀160 mm and a rectangular section with inner dimensions 220×20 mm. The wall thickness is 3 mm and the total length is 250 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 160 mm
cylinder inlet length 35 mm
rectangle internal length 220 mm
rectangle internal height 20 mm
rectangle inlet length 70 mm
offset Z 0 mm
offset Y 0 mm
total length 250 mm
thickness 3 mm
chamfer chamfer on t...