Custom Round-to-Rectangular Tube Adapter STL file ⌀156 mm to 220×90 mm, thickness 3 mm + offset 📦#11749

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Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀156 mm and a rectangular section with internal dimensions 220×90 mm. The wall thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 30 mm along the Z axis.
Generation date: 2026-09-16
3D Model Round-to-Rectangular Tube Adapter STL file ⌀156 mm to 220×90 mm, thickness 3 mm + offset

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  • round-to-rectangular-adapter-d_model11749-nb0_dd{id}.stl : 1.4 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 156 mm (≃6.14 in)
#2 cylinder inlet length 30 mm (≃1 3/16 in)
#3 rectangle internal length 220 mm (≃8.66 in)
#4 rectangle internal height 90 mm (≃3.54 in)
#5 rectangle inlet length 32 mm (≃1 1/4 in)
#6 offset Z 30 mm (≃1 3/16 in)
#7 offset Y 0 mm (0 in)
#8 total length 200 mm (≃7 7/8 in)
#9 thickness 3 mm (≃1/8 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 150 mm (≃5.91 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

Related 3D models

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 tube adapter with an outer diameter of ⌀156 mm and a rectangular section with inner dimensions 220×90 mm. The wall thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 20 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 156 mm
cylinder inlet length 30 mm
rectangle internal length 220 mm
rectangle internal height 90 mm
rectangle inlet length 32 mm
offset Z 20 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 external diameter of ⌀125 mm and a rectangular section with inner dimensions 220×55 mm. The wall thickness is 3 mm and the total length is 160 mm. The adapter has an offset of 33 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 25 mm
rectangle internal length 220 mm
rectangle internal height 55 mm
rectangle inlet length 25 mm
offset Z 33 mm
offset Y 0 mm
total length 160 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 220×55 mm. The wall thickness is 3 mm and the total length is 160 mm. The adapter has an offset of 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 25 mm
rectangle internal length 220 mm
rectangle internal height 55 mm
rectangle inlet length 25 mm
offset Z 25 mm
offset Y 0 mm
total length 160 mm
thickness 3 mm
chamfer no chamfer
Download this 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 180×100 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 180 mm
rectangle internal height 100 mm
rectangle inlet length 50 mm
offset Z 25 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 adapter with an outer diameter of ⌀125 mm and a rectangular section with internal dimensions 220×55 mm. The shell thickness is 3 mm and the overall length is 160 mm. The adapter has an offset of 47 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 25 mm
rectangle internal length 220 mm
rectangle internal height 55 mm
rectangle inlet length 25 mm
offset Z 47 mm
offset Y 0 mm
total length 160 mm
thickness 3 mm
chamfer no chamfer
File in STL format of a round-to-rectangular 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 total length is 150 mm. The adapter has an offset of 25 mm along the Z 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 25 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀150 mm and a rectangular section with internal dimensions 220×90 mm. The wall thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 50 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
rectangle internal length 220 mm
rectangle internal height 90 mm
rectangle inlet length 50 mm
offset Z 50 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀200 mm and a rectangular section with inner dimensions 180×60 mm. The shell thickness is 3 mm and the total length is 150 mm. The adapter has an offset of 45 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 200 mm
cylinder inlet length 30 mm
rectangle internal length 180 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 45 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 external diameter of ⌀150 mm and a rectangular section with internal dimensions 200×80 mm. The shell thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 50 mm along the Z axis.
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 50 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
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
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀150 mm and a rectangular section with inner dimensions 240×80 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 30 mm
rectangle internal length 240 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀125 mm and a rectangular section with internal dimensions 195×45 mm. The wall thickness is 2 mm and the total length is 170 mm. The adapter has an offset of 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 36 mm
rectangle internal length 195 mm
rectangle internal height 45 mm
rectangle inlet length 29 mm
offset Z 25 mm
offset Y 0 mm
total length 170 mm
thickness 2 mm
chamfer no chamfer
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀152.4 mm and a rectangular section with inner dimensions 200×60 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 152.4 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 60 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 outer diameter of ⌀150 mm and a rectangular section with inner dimensions 200×60 mm. The shell thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
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 60 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 ⌀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 ⌀147 mm and a rectangular section with internal dimensions 200×60 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 147 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 60 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 adapter with an outer diameter of ⌀125 mm and a rectangular section with inner dimensions 220×90 mm. The wall thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 30 mm
rectangle internal length 220 mm
rectangle internal height 90 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 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 inner dimensions 220×90 mm. The shell thickness is 3 mm and the total length is 200 mm.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 30 mm
rectangle internal length 220 mm
rectangle internal height 90 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 external diameter of ⌀131 mm and a rectangular section with internal dimensions 220×55 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 131 mm
cylinder inlet length 30 mm
rectangle internal length 220 mm
rectangle internal height 55 mm
rectangle inlet length 30 mm
offset Z 60 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀150 mm and a rectangular section with internal dimensions 200×55 mm. The wall thickness is 3 mm and the overall length is 250 mm. The adapter has an offset of 35 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 20 mm
rectangle internal length 200 mm
rectangle internal height 55 mm
rectangle inlet length 70 mm
offset Z 35 mm
offset Y 0 mm
total length 250 mm
thickness 3 mm
chamfer no chamfer
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀110 mm and a rectangular section with internal dimensions 150×80 mm. The wall thickness is 3 mm and the overall length is 120 mm. The adapter has an offset of 30 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 110 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 30 mm
offset Y 0 mm
total length 120 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 ⌀200 mm and a rectangular section with inner dimensions 200×60 mm. The shell thickness is 2 mm and the overall length is 200 mm. The adapter has an offset of 45 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 200 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 45 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀124 mm and a rectangular section with internal dimensions 250×80 mm. The wall thickness is 3 mm and the total length is 186 mm.
Parameter Value Unit
cylinder outer diameter 124 mm
cylinder inlet length 30 mm
rectangle internal length 250 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 186 mm
thickness 3 mm
chamfer no chamfer
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀125 mm and a rectangular section with inner dimensions 200×60 mm. The shell thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
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 60 mm
offset Y 0 mm
total length 200 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
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
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀120 mm and a rectangular section with internal dimensions 200×60 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 60 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 60 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 ⌀149.8 mm and a rectangular section with internal dimensions 300×100 mm. The wall thickness is 3 mm and the overall 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 300 mm
rectangle internal height 100 mm
rectangle inlet length 50 mm
offset Z 20 mm
offset Y 0 mm
total length 140 mm
thickness 3 mm
chamfer no chamfer
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀125 mm and a rectangular section with inner dimensions 220×55 mm. The wall thickness is 3 mm and the overall length is 180 mm.
Parameter Value Unit
cylinder outer diameter 125 mm
cylinder inlet length 25 mm
rectangle internal length 220 mm
rectangle internal height 55 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 180 mm
thickness 3 mm
chamfer no chamfer