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Custom Round-to-Rectangular Tube Adapter STL 3D file ⌀200 mm to 300×125 mm, thickness 5 mm 📦#2939

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Download this 3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀200 mm and a rectangular section with inner dimensions 300×125 mm. The wall thickness is 5 mm and the total length is 300 mm. A chamfer is present on the inside of the rectangular end to ease insertion.
Generation date: 2025-11-01
3D Model Round-to-Rectangular Tube Adapter STL 3D file ⌀200 mm to 300×125 mm, thickness 5 mm

3D model download

Free
  • round-to-rectangular-adapter-d_model2939-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 200 mm (≃7 7/8 in)
#2 cylinder inlet length 75 mm (≃2 15/16 in)
#3 rectangle internal length 300 mm (≃11 13/16 in)
#4 rectangle internal height 125 mm (≃4.92 in)
#5 rectangle inlet length 75 mm (≃2 15/16 in)
#6 offset Z 0 mm (0 in)
#7 offset Y 0 mm (0 in)
#8 total length 300 mm (≃11 13/16 in)
#9 thickness 5 mm (≃3/16 in)
#10 chamfer chamfer on the inside
of the rectangular tube
Metadata Value
Cylinder internal diameter 190 mm (≃7.48 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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Round-to-Rectangular Tube Adapter STL file ⌀200 mm to 300×125 mm, thickness 5 mm (📦 #1867)

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Round-to-Rectangular Tube Adapter STL file ⌀200 mm to 300×125 mm, thickness 5 mm
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Parameter Value Unit
cylinder outer diameter 200 mm
cylinder inlet length 75 mm
rectangle internal length 300 mm
rectangle internal height 125 mm
rectangle inlet length 75 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 5 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀150 mm to 300×95 mm, thickness 5 mm + offset (📦 #3858)

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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 30 mm
rectangle internal length 300 mm
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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
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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 50 mm
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rectangle internal height 115 mm
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thickness 4 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 ⌀112 mm to 290×80 mm, thickness 3 mm (📦 #2034)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀112 mm to 290×80 mm, thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 112 mm
cylinder inlet length 70 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀158 mm to 190×110 mm, thickness 4 mm (📦 #2532)

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Parameter Value Unit
cylinder outer diameter 158 mm
cylinder inlet length 43 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀76.2 mm to 300×50.8 mm, thickness 4 mm (📦 #2133)

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Parameter Value Unit
cylinder outer diameter 76.2 mm
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3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀160 mm and a rectangular section with internal dimensions 300×120 mm. The wall thickness is 3 mm and the overall 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 160 mm
cylinder inlet length 30 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀250 mm to 250×150 mm, thickness 3 mm + offset (📦 #2131)

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Round-to-Rectangular Tube Adapter STL 3D file ⌀250 mm to 250×150 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀250 mm and a rectangular section with internal dimensions 250×150 mm. The shell thickness is 3 mm and the total length is 165 mm. The adapter has an offset of 15 mm along the Z axis. 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 250 mm
cylinder inlet length 50 mm
rectangle internal length 250 mm
rectangle internal height 150 mm
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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 122 mm
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Round-to-Rectangular Tube Adapter STL file ⌀158 mm to 210×35 mm, thickness 4 mm (📦 #2530)

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Model in STL format of a round-to-rectangular adapter with an external diameter of ⌀158 mm and a rectangular section with inner dimensions 210×35 mm. The shell thickness is 4 mm and the total length is 220 mm. Chamfers are present 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 40 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀105 mm to 297×67 mm, thickness 3 mm (📦 #1613)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀105 mm to 297×67 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀105 mm and a rectangular section with internal dimensions 297×67 mm. The wall thickness is 3 mm and the overall length is 250 mm.
Parameter Value Unit
cylinder outer diameter 105 mm
cylinder inlet length 100 mm
rectangle internal length 297 mm
rectangle internal height 67 mm
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Round-to-Rectangular Tube Adapter STL 3D file ⌀148 mm to 150×50 mm, thickness 4 mm + offset (📦 #1927)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀148 mm to 150×50 mm, thickness 4 mm + offset
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀148 mm and a rectangular section with internal dimensions 150×50 mm. The shell thickness is 4 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. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 80 mm
offset Z 3 mm
offset Y 3 mm
total length 150 mm
thickness 4 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 220×60 mm, thickness 3 mm (📦 #1923)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 220×60 mm, thickness 3 mm
3D 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 220×60 mm. The wall thickness is 3 mm and the total length is 220 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 220 mm
rectangle internal height 60 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 220 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀160 mm to 300×120 mm, thickness 3 mm + offset (📦 #2008)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀160 mm to 300×120 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀160 mm and a rectangular section with internal dimensions 300×120 mm. The wall thickness is 3 mm and the overall length is 200 mm. The adapter has an offset of 35 mm along the Z axis. 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 160 mm
cylinder inlet length 30 mm
rectangle internal length 300 mm
rectangle internal height 120 mm
rectangle inlet length 80 mm
offset Z 35 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset (📦 #2135)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀76.2 mm and a rectangular section with internal dimensions 200×50.8 mm. The shell thickness is 4 mm and the total length is 166 mm. The adapter has an offset of 20 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 76.2 mm
cylinder inlet length 76 mm
rectangle internal length 200 mm
rectangle internal height 50.8 mm
rectangle inlet length 50 mm
offset Z 20 mm
offset Y 0 mm
total length 166 mm
thickness 4 mm
chamfer no chamfer

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
rectangle internal length 290 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 160 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀112 mm to 294×67 mm, thickness 3 mm (📦 #1627)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀112 mm to 294×67 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀112 mm and a rectangular section with internal dimensions 294×67 mm. The wall thickness is 3 mm and the overall length is 248 mm.
Parameter Value Unit
cylinder outer diameter 112 mm
cylinder inlet length 30 mm
rectangle internal length 294 mm
rectangle internal height 67 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 248 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀165 mm to 300×120 mm, thickness 3 mm + offset (📦 #2032)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀165 mm to 300×120 mm, thickness 3 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀165 mm and a rectangular section with inner dimensions 300×120 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 35 mm along the Z axis. 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 165 mm
cylinder inlet length 30 mm
rectangle internal length 300 mm
rectangle internal height 120 mm
rectangle inlet length 40 mm
offset Z 35 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀199 mm to 204×204 mm, thickness 3 mm (📦 #1892)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀199 mm to 204×204 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀199 mm and a rectangular section with internal dimensions 204×204 mm. The wall thickness is 3 mm and the total length is 300 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 199 mm
cylinder inlet length 25 mm
rectangle internal length 204 mm
rectangle internal height 204 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 300 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀128 mm to 114×58 mm, thickness 3 mm (📦 #2416)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀128 mm to 114×58 mm, thickness 3 mm
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀128 mm and a rectangular section with internal dimensions 114×58 mm. The shell thickness is 3 mm and the total length is 220 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 128 mm
cylinder inlet length 50 mm
rectangle internal length 114 mm
rectangle internal height 58 mm
rectangle inlet length 99 mm
offset Z 0 mm
offset Y 0 mm
total length 220 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 180×30 mm, thickness 3 mm + offset (📦 #2002)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76 mm to 180×30 mm, thickness 3 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀76 mm and a rectangular section with inner dimensions 180×30 mm. The shell thickness is 3 mm and the overall length is 260 mm. The adapter has an offset of 5 mm along the Z axis. 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 76 mm
cylinder inlet length 80 mm
rectangle internal length 180 mm
rectangle internal height 30 mm
rectangle inlet length 100 mm
offset Z 5 mm
offset Y 0 mm
total length 260 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset (📦 #1799)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 120×120 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀120 mm and a rectangular section with internal dimensions 120×120 mm. The shell thickness is 3 mm and the total length is 200 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 120 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 100 mm
offset Z 2 mm
offset Y 2 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀114.3 mm to 200.5×170.5 mm, thickness 3 mm + offset (📦 #2185)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀114.3 mm to 200.5×170.5 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀114.3 mm and a rectangular section with internal dimensions 200.5×170.5 mm. The shell thickness is 3 mm and the total length is 128 mm. The adapter has an offset of 14 mm along the Z axis. A chamfer is applied on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 114.3 mm
cylinder inlet length 50 mm
rectangle internal length 200.5 mm
rectangle internal height 170.5 mm
rectangle inlet length 50 mm
offset Z 14 mm
offset Y 0 mm
total length 128 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀72 mm to 118×77 mm, thickness 4 mm + offset (📦 #3135)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀72 mm to 118×77 mm, thickness 4 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀72 mm and a rectangular section with internal dimensions 118×77 mm. The shell thickness is 4 mm and the overall length is 147.2 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 72 mm
cylinder inlet length 76 mm
rectangle internal length 118 mm
rectangle internal height 77 mm
rectangle inlet length 51 mm
offset Z 2 mm
offset Y 2 mm
total length 147.2 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀125 mm to 220×90 mm, thickness 3 mm (📦 #2671)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀125 mm to 220×90 mm, thickness 3 mm
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

Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm (📦 #2582)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀76 mm to 160×78 mm, thickness 3 mm
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀76 mm and a rectangular section with inner dimensions 160×78 mm. The wall thickness is 3 mm and the overall length is 200 mm.
Parameter Value Unit
cylinder outer diameter 76 mm
cylinder inlet length 76 mm
rectangle internal length 160 mm
rectangle internal height 78 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 0 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset (📦 #2134)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀76.2 mm to 200×50.8 mm, thickness 4 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀76.2 mm and a rectangular section with internal dimensions 200×50.8 mm. The shell thickness is 4 mm and the overall length is 166 mm. The adapter has an offset of 20 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 76.2 mm
cylinder inlet length 76 mm
rectangle internal length 200 mm
rectangle internal height 50.8 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 20 mm
total length 166 mm
thickness 4 mm
chamfer no chamfer

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
chamfer chamfers on ...