Custom Round-to-Rectangular Tube Adapter STL file ⌀202 mm to 225×110 mm, thickness 3 mm 📦#9391

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Download this 3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀202 mm and a rectangular section with internal dimensions 225×110 mm. The wall thickness is 3 mm and the total length is 200 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Generation date: 2026-06-11
3D Model Round-to-Rectangular Tube Adapter STL file ⌀202 mm to 225×110 mm, thickness 3 mm

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Free
  • round-to-rectangular-adapter-d_model9391-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 202 mm (≃7 15/16 in)
#2 cylinder inlet length 80 mm (≃3.15 in)
#3 rectangle internal length 225 mm (≃8.86 in)
#4 rectangle internal height 110 mm (≃4.33 in)
#5 rectangle inlet length 20 mm (≃0.79 in)
#6 offset Z 0 mm (0 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 chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
Metadata Value
Cylinder internal diameter 196 mm (≃7.72 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 

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Parameter Value Unit
cylinder outer diameter 150 mm
cylinder inlet length 60 mm
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rectangle internal height 100 mm
rectangle inlet length 60 mm
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 200 mm
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Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 100 mm
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 95 mm
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Parameter Value Unit
cylinder outer diameter 102 mm
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
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cylinder inlet length 100 mm
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Parameter Value Unit
cylinder outer diameter 149.6 mm
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Parameter Value Unit
cylinder outer diameter 250 mm
cylinder inlet length 50 mm
rectangle internal length 250 mm
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Parameter Value Unit
cylinder outer diameter 145 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 120 mm
rectangle inlet length 20 mm
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Parameter Value Unit
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Parameter Value Unit
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Parameter Value Unit
cylinder outer diameter 160 mm
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Parameter Value Unit
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Parameter Value Unit
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