Custom Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 250×50 mm, thickness 2 mm + offset 📦#2138

STL Download STL 1
Create a new model expert
from scratch search for a model
Download this 3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀120 mm and a rectangular section with inner dimensions 250×50 mm. The wall thickness is 2 mm and the total length is 165 mm. The adapter has an offset of 30 mm along the Y axis and 10 mm along the Z axis.
Generation date: 2025-10-01
3D Model Round-to-Rectangular Tube Adapter STL file ⌀120 mm to 250×50 mm, thickness 2 mm + offset

3D model download

Free
  • round-to-rectangular-adapter-d_model2138-nb0_dd{id}.stl : 1.7 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)
Safe download
Instant .zip download — no email, no account

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 120 mm (≃4.72 in)
#2 cylinder inlet length 5 mm (≃3/16 in)
#3 rectangle internal length 250 mm (≃9.84 in)
#4 rectangle internal height 50 mm (≃1.97 in)
#5 rectangle inlet length 60 mm (≃2 3/8 in)
#6 offset Z 10 mm (≃0.39 in)
#7 offset Y 30 mm (≃1 3/16 in)
#8 total length 165 mm (≃6 1/2 in)
#9 thickness 2 mm (≃0.08 in)
#10 chamfer no chamfer
Metadata Value
Cylinder internal diameter 116 mm (≃4 9/16 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 

Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×75 mm, thickness 2 mm + offset (📦 #1975)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀100 mm to 135×75 mm, thickness 2 mm + offset
File in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 135×75 mm. The shell thickness is 2 mm and the overall length is 160 mm. The adapter has an offset of 30 mm along the Y axis and 30 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 35 mm
rectangle internal length 135 mm
rectangle internal height 75 mm
rectangle inlet length 60 mm
offset Z 30 mm
offset Y 30 mm
total length 160 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 120×40 mm, thickness 2 mm + offset (📦 #1938)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀100 mm to 120×40 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with inner dimensions 120×40 mm. The shell thickness is 2 mm and the total length is 175 mm. The adapter has an offset of 25 mm along the Y axis and 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 35 mm
rectangle internal length 120 mm
rectangle internal height 40 mm
rectangle inlet length 75 mm
offset Z 25 mm
offset Y 25 mm
total length 175 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀130 mm to 120×60 mm, thickness 3 mm + offset (📦 #7217)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀130 mm to 120×60 mm, thickness 3 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀130 mm and a rectangular section with inner dimensions 120×60 mm. The shell thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 30 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 130 mm
cylinder inlet length 30 mm
rectangle internal length 120 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 30 mm
total length 200 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀148 mm to 228×80 mm, thickness 3 mm + offset (📦 #4275)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀148 mm to 228×80 mm, thickness 3 mm + offset
Model 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 wall thickness is 3 mm and the overall length is 150 mm. The adapter has an offset of 24 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 24 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀154 mm to 80×50 mm, thickness 2 mm + offset (📦 #1652)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀154 mm to 80×50 mm, thickness 2 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀154 mm and a rectangular section with internal dimensions 80×50 mm. The wall thickness is 2 mm and the overall length is 175 mm. The adapter has an offset of 25 mm along the Y axis and 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 154 mm
cylinder inlet length 35 mm
rectangle internal length 80 mm
rectangle internal height 50 mm
rectangle inlet length 75 mm
offset Z 25 mm
offset Y 25 mm
total length 175 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀148 mm to 200×80 mm, thickness 3 mm + offset (📦 #4271)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀148 mm to 200×80 mm, thickness 3 mm + offset
Download this file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀148 mm and a rectangular section with inner dimensions 200×80 mm. The shell thickness is 3 mm and the overall length is 150 mm. The adapter has an offset of 20 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 50 mm
rectangle internal length 200 mm
rectangle internal height 80 mm
rectangle inlet length 49 mm
offset Z 0 mm
offset Y 20 mm
total length 150 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 108×52 mm, thickness 3 mm + offset (📦 #3572)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 108×52 mm, thickness 3 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀81 mm and a rectangular section with internal dimensions 108×52 mm. The wall thickness is 3 mm and the overall length is 100 mm. The adapter has an offset of 25 mm along the Y axis and 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 20 mm
rectangle internal length 108 mm
rectangle internal height 52 mm
rectangle inlet length 30 mm
offset Z 25 mm
offset Y 25 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 102×46 mm, thickness 3 mm + offset (📦 #3573)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 102×46 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀81 mm and a rectangular section with internal dimensions 102×46 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 25 mm along the Y axis and 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 20 mm
rectangle internal length 102 mm
rectangle internal height 46 mm
rectangle inlet length 30 mm
offset Z 25 mm
offset Y 25 mm
total length 100 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀156 mm to 200×80 mm, thickness 2 mm + offset (📦 #9689)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀156 mm to 200×80 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀156 mm and a rectangular section with internal dimensions 200×80 mm. The shell thickness is 2 mm and the overall length is 220 mm. The adapter has an offset of 30 mm along the Y axis and 50 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 156 mm
cylinder inlet length 30 mm
rectangle internal length 200 mm
rectangle internal height 80 mm
rectangle inlet length 30 mm
offset Z 50 mm
offset Y 30 mm
total length 220 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 105×50 mm, thickness 2 mm + offset (📦 #1653)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀80 mm to 105×50 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀80 mm and a rectangular section with internal dimensions 105×50 mm. The wall thickness is 2 mm and the total length is 150 mm. The adapter has an offset of 25 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 50 mm
rectangle internal length 105 mm
rectangle internal height 50 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 25 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 150×30 mm, thickness 2 mm + offset (📦 #5770)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀60 mm to 150×30 mm, thickness 2 mm + offset
Model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀60 mm and a rectangular section with internal dimensions 150×30 mm. The shell thickness is 2 mm and the total length is 90 mm. The adapter has an offset of 15 mm along the Y axis and 15 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 30 mm
rectangle inlet length 30 mm
offset Z 15 mm
offset Y 15 mm
total length 90 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀130 mm to 114×54 mm, thickness 3 mm + offset (📦 #7218)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀130 mm to 114×54 mm, thickness 3 mm + offset
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀130 mm and a rectangular section with inner dimensions 114×54 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 30 mm along the Y axis. A chamfer is applied on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 130 mm
cylinder inlet length 30 mm
rectangle internal length 114 mm
rectangle internal height 54 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 30 mm
total length 200 mm
thickness 3 mm
chamfer chamfer on t...

Round-to-Rectangular Tube Adapter STL file ⌀101 mm to 170×124.5 mm, thickness 3 mm + offset (📦 #7359)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀101 mm to 170×124.5 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular adapter with an outer diameter of ⌀101 mm and a rectangular section with internal dimensions 170×124.5 mm. The wall thickness is 3 mm and the total length is 138 mm. The adapter has an offset of 11 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 101 mm
cylinder inlet length 25 mm
rectangle internal length 170 mm
rectangle internal height 124.5 mm
rectangle inlet length 83 mm
offset Z 0 mm
offset Y 11 mm
total length 138 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀101 mm to 170×124.5 mm, thickness 3 mm + offset (📦 #7360)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀101 mm to 170×124.5 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀101 mm and a rectangular section with inner dimensions 170×124.5 mm. The shell thickness is 3 mm and the total length is 130.7 mm. The adapter has an offset of 11 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 101 mm
cylinder inlet length 25 mm
rectangle internal length 170 mm
rectangle internal height 124.5 mm
rectangle inlet length 83 mm
offset Z 0 mm
offset Y 11 mm
total length 130.7 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀84 mm to 20×100 mm, thickness 2 mm + offset (📦 #7274)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀84 mm to 20×100 mm, thickness 2 mm + offset
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀84 mm and a rectangular section with inner dimensions 20×100 mm. The wall thickness is 2 mm and the overall length is 150 mm. The adapter has an offset of 30 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 84 mm
cylinder inlet length 20 mm
rectangle internal length 20 mm
rectangle internal height 100 mm
rectangle inlet length 70 mm
offset Z 0 mm
offset Y 30 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 80×80 mm, thickness 2 mm + offset (📦 #2048)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀90 mm to 80×80 mm, thickness 2 mm + offset
Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀90 mm and a rectangular section with inner dimensions 80×80 mm. The shell thickness is 2 mm and the overall length is 150 mm. The adapter has an offset of 25 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 50 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 25 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀204 mm to 300×60 mm, thickness 3 mm + offset (📦 #2083)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀204 mm to 300×60 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀204 mm and a rectangular section with internal dimensions 300×60 mm. The wall thickness is 3 mm and the total length is 148 mm. The adapter has an offset of 44 mm along the Y axis and 44 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 204 mm
cylinder inlet length 10 mm
rectangle internal length 300 mm
rectangle internal height 60 mm
rectangle inlet length 50 mm
offset Z 44 mm
offset Y 44 mm
total length 148 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀85 mm to 215×25 mm, thickness 4 mm + offset (📦 #7564)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀85 mm to 215×25 mm, thickness 4 mm + offset
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀85 mm and a rectangular section with inner dimensions 215×25 mm. The wall thickness is 4 mm and the total length is 140 mm. The adapter has an offset of 20 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 85 mm
cylinder inlet length 35 mm
rectangle internal length 215 mm
rectangle internal height 25 mm
rectangle inlet length 35 mm
offset Z 0 mm
offset Y 20 mm
total length 140 mm
thickness 4 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀148 mm to 228×80 mm, thickness 3 mm + offset (📦 #4276)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀148 mm to 228×80 mm, thickness 3 mm + offset
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

Round-to-Rectangular Tube Adapter STL file ⌀86 mm to 30×100 mm, thickness 3 mm + offset (📦 #7272)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀86 mm to 30×100 mm, thickness 3 mm + offset
File in STL format of a round-to-rectangular adapter with an external diameter of ⌀86 mm and a rectangular section with inner dimensions 30×100 mm. The wall thickness is 3 mm and the overall length is 160 mm. The adapter has an offset of 30 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 86 mm
cylinder inlet length 20 mm
rectangle internal length 30 mm
rectangle internal height 100 mm
rectangle inlet length 70 mm
offset Z 0 mm
offset Y 30 mm
total length 160 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀140 mm to 190×25 mm, thickness 3 mm + offset (📦 #4344)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀140 mm to 190×25 mm, thickness 3 mm + offset
3D model in STL format of a round-to-rectangular adapter with an external diameter of ⌀140 mm and a rectangular section with internal dimensions 190×25 mm. The wall thickness is 3 mm and the total length is 200 mm. The adapter has an offset of 37 mm along the Y axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 140 mm
cylinder inlet length 25 mm
rectangle internal length 190 mm
rectangle internal height 25 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 37 mm
total length 200 mm
thickness 3 mm
chamfer chamfers on ...

Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 94.6×73 mm, thickness 2 mm + offset (📦 #3310)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀106 mm to 94.6×73 mm, thickness 2 mm + offset
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀106 mm and a rectangular section with inner dimensions 94.6×73 mm. The shell thickness is 2 mm and the overall length is 200 mm. The adapter has an offset of 25 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 106 mm
cylinder inlet length 50 mm
rectangle internal length 94.6 mm
rectangle internal height 73 mm
rectangle inlet length 100 mm
offset Z 0 mm
offset Y 25 mm
total length 200 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 108×52 mm, thickness 3 mm + offset (📦 #3598)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL file ⌀81 mm to 108×52 mm, thickness 3 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀81 mm and a rectangular section with inner dimensions 108×52 mm. The shell thickness is 3 mm and the total length is 120 mm. The adapter has an offset of 45 mm along the Y axis and 25 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 81 mm
cylinder inlet length 15 mm
rectangle internal length 108 mm
rectangle internal height 52 mm
rectangle inlet length 15 mm
offset Z 25 mm
offset Y 45 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀30 mm to 80×80 mm, thickness 2 mm + offset (📦 #4731)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀30 mm to 80×80 mm, thickness 2 mm + offset
Download this model in STL format of a round-to-rectangular adapter with an external diameter of ⌀30 mm and a rectangular section with inner dimensions 80×80 mm. The shell thickness is 2 mm and the overall length is 150 mm. The adapter has an offset of 25 mm along the Y axis.
Parameter Value Unit
cylinder outer diameter 30 mm
cylinder inlet length 30 mm
rectangle internal length 80 mm
rectangle internal height 80 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 25 mm
total length 150 mm
thickness 2 mm
chamfer no chamfer

Round-to-Rectangular Tube Adapter STL 3D file ⌀110 mm to 127×127 mm, thickness 2 mm + offset (📦 #8803)

1 object(s) - format STL
Round-to-Rectangular Tube Adapter STL 3D file ⌀110 mm to 127×127 mm, thickness 2 mm + offset
3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀110 mm and a rectangular section with internal dimensions 127×127 mm. The shell thickness is 2 mm and the total length is 100 mm. The adapter has an offset of 10 mm along the Y axis and 10 mm along the Z axis.
Parameter Value Unit
cylinder outer diameter 110 mm
cylinder inlet length 20 mm
rectangle internal length 127 mm
rectangle internal height 127 mm
rectangle inlet length 20 mm
offset Z 10 mm
offset Y 10 mm
total length 100 mm
thickness 2 mm
chamfer no chamfer