Custom Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 280×140 mm, thickness 5 mm 📦#9226

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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 280×140 mm. The wall thickness is 5 mm and the total length is 150 mm. A chamfer is applied on the outside of the cylindrical end.
Generation date: 2026-05-31
3D Model Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 280×140 mm, thickness 5 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model9226-nb0_dd{id}.stl : 2.7 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 100 mm (≃3 15/16 in)
#2 cylinder inlet length 50 mm (≃1.97 in)
#3 rectangle internal length 280 mm (≃11.02 in)
#4 rectangle internal height 140 mm (≃5 1/2 in)
#5 rectangle inlet length 30 mm (≃1 3/16 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 150 mm (≃5.91 in)
#9 thickness 5 mm (≃3/16 in)
#10 chamfer chamfer on the outside
of the cylindrical tube
Metadata Value
Cylinder internal diameter 90 mm (≃3.54 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 

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 240×120 mm, thickness 5 mm (📦 #4158)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 240×120 mm, thickness 5 mm
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 240 mm
rectangle internal height 120 mm
rectangle inlet length 27 mm
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offset Y 0 mm
total length 100 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 240×120 mm, thickness 5 mm (📦 #4087)

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Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with inner dimensions 240×120 mm. The shell thickness is 5 mm and the overall length is 100 mm. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 240 mm
rectangle internal height 120 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 5 mm
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 240×120 mm, thickness 5 mm (📦 #4084)

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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 240×120 mm, thickness 5 mm
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 240 mm
rectangle internal height 120 mm
rectangle inlet length 20 mm
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thickness 5 mm
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Round-to-Rectangular Tube Adapter STL file ⌀101.6 mm to 254×101.6 mm, thickness 5 mm (📦 #2055)

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Round-to-Rectangular Tube Adapter STL file ⌀101.6 mm to 254×101.6 mm, thickness 5 mm
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Parameter Value Unit
cylinder outer diameter 101.6 mm
cylinder inlet length 50 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀104.7 mm to 299×55 mm, thickness 4 mm (📦 #9049)

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Parameter Value Unit
cylinder outer diameter 104.7 mm
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 40 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 138×139 mm, thickness 5 mm (📦 #6193)

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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 104.7 mm
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Parameter Value Unit
cylinder outer diameter 76.2 mm
cylinder inlet length 76 mm
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cylinder inlet length 40 mm
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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀110 mm to 120×75 mm, thickness 5 mm (📦 #9107)

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Round-to-Rectangular Tube Adapter STL file ⌀110 mm to 120×75 mm, thickness 5 mm
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Parameter Value Unit
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cylinder inlet length 50 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀85 mm to 215×25 mm, thickness 4 mm (📦 #7565)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀85 mm to 215×25 mm, thickness 4 mm
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Parameter Value Unit
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Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 200×115 mm, thickness 4 mm (📦 #2682)

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Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 200×115 mm, thickness 4 mm
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
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Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 130×100 mm, thickness 5 mm (📦 #3918)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 130×100 mm, thickness 5 mm
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀100 mm and a rectangular section with internal dimensions 130×100 mm. The shell thickness is 5 mm and the total length is 80 mm. A chamfer is present on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 130 mm
rectangle internal height 100 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀158 mm to 190×110 mm, thickness 4 mm (📦 #2532)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀158 mm to 190×110 mm, thickness 4 mm
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
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Round-to-Rectangular Tube Adapter STL file ⌀102 mm to 290×80 mm, thickness 3 mm (📦 #2036)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀102 mm to 290×80 mm, thickness 3 mm
3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀102 mm and a rectangular section with inner dimensions 290×80 mm. The wall thickness is 3 mm and the overall length is 160 mm. A chamfer is present on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 102 mm
cylinder inlet length 70 mm
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Round-to-Rectangular Tube Adapter STL file ⌀146 mm to 255×130 mm, thickness 3 mm (📦 #9796)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀146 mm to 255×130 mm, thickness 3 mm
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀146 mm and a rectangular section with internal dimensions 255×130 mm. The shell thickness is 3 mm and the overall length is 150 mm.
Parameter Value Unit
cylinder outer diameter 146 mm
cylinder inlet length 40 mm
rectangle internal length 255 mm
rectangle internal height 130 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 250×270 mm, thickness 5 mm (📦 #9812)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 250×270 mm, thickness 5 mm
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 250×270 mm. The wall thickness is 5 mm and the total length is 120 mm.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 20 mm
rectangle internal length 250 mm
rectangle internal height 270 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 5 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 250×120 mm, thickness 3 mm (📦 #9716)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 250×120 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀150 mm and a rectangular section with inner dimensions 250×120 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 40 mm
rectangle internal length 250 mm
rectangle internal height 120 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
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Round-to-Rectangular Tube Adapter STL file ⌀158 mm to 210×180 mm, thickness 4 mm (📦 #2531)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀158 mm to 210×180 mm, thickness 4 mm
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀158 mm and a rectangular section with internal dimensions 210×180 mm. The shell thickness is 4 mm and the overall length is 83 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 158 mm
cylinder inlet length 35 mm
rectangle internal length 210 mm
rectangle internal height 180 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 83 mm
thickness 4 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀145 mm to 230×130 mm, thickness 3 mm (📦 #9801)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀145 mm to 230×130 mm, thickness 3 mm
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

Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 230×150 mm, thickness 3 mm (📦 #9717)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀150 mm to 230×150 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀150 mm and a rectangular section with inner dimensions 230×150 mm. The wall thickness is 3 mm and the total length is 150 mm.
Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 40 mm
rectangle internal length 230 mm
rectangle internal height 150 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 224×94 mm, thickness 3 mm (📦 #10172)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀124 mm to 224×94 mm, thickness 3 mm
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
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Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 205×100 mm, thickness 3 mm + offset (📦 #8380)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 205×100 mm, thickness 3 mm + offset
Download this 3D file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀120 mm and a rectangular section with inner dimensions 205×100 mm. The wall thickness is 3 mm and the total length is 125 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 120 mm
cylinder inlet length 50 mm
rectangle internal length 205 mm
rectangle internal height 100 mm
rectangle inlet length 15 mm
offset Z 3 mm
offset Y 3 mm
total length 125 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 205×100 mm, thickness 3 mm + offset (📦 #8381)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 205×100 mm, thickness 3 mm + offset
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀120 mm and a rectangular section with internal dimensions 205×100 mm. The shell thickness is 3 mm and the total length is 125 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 120 mm
cylinder inlet length 40 mm
rectangle internal length 205 mm
rectangle internal height 100 mm
rectangle inlet length 12 mm
offset Z 3 mm
offset Y 3 mm
total length 125 mm
thickness 3 mm
chamfer no chamfer