Custom Oval duct transition fitting STL file 200.1x200 mm to 200x95 mm – transition: 100 mm 📦#5259

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Oval duct adapter available as a STL 3D file. The internal cross-section on side A is 200.1x200 mm (nearly circular), while on side B it is 200x95 mm (oval). Both sleeves share an identical useful length of 30 mm. The transition links the two ends over 100 mm, with a total overall length of 160 mm. Internal chamfers are added at the ends to make assembly and duct insertion easier.
Generation date: 2025-12-24
3D Model Oval duct transition fitting STL file 200.1x200 mm to 200x95 mm – transition: 100 mm

3D model download

Free
  • oval-duct-transition-fitting-w_model5259-nb0_dd{id}.stl : 2.2 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 Oval duct transition fitting / hose-shaped reducer template, with the following values:
Parameter Value
#1 side A internal width 200.1 mm (≃7 7/8 in)
#2 side A internal height 200 mm (≃7 7/8 in)
#3 sleeve length on side A 30 mm (≃1 3/16 in)
#4 side B internal width 200 mm (≃7 7/8 in)
#5 side B internal height 95 mm (≃3 3/4 in)
#6 sleeve length on side B 30 mm (≃1 3/16 in)
#7 thickness 3 mm (≃1/8 in)
#8 transition length 100 mm (≃3 15/16 in)
#9 Y offset 0 mm (0 in)
#10 Z offset 0 mm (0 in)
#11 end chamfers inside
Metadata Value
external width on side A 206.1 mm (≃8 1/8 in)
external height on side A 206 mm (≃8 1/8 in)
external width on side B 206 mm (≃8 1/8 in)
external height on side B 101 mm (≃3.98 in)
total length 160 mm (≃6 5/16 in)
illustration of the parameters
Parameter overview

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 side A internal width widOA
#2 side A internal height heiOA
#3 sleeve length on side A lenSA
#4 side B internal width widOB
#5 side B internal height heiOB
#6 sleeve length on side B lenSB
#7 thickness thi
#8 transition length tra
#9 Y offset ofsY
#10 Z offset ofsZ
#11 end chamfers cha

Related 3D models

To search for a model based on your own parameters, go to the template page Oval duct transition fitting / hose-shaped reducer 

Oval duct transition adapter STL file 196x195.9 mm to 196x56 mm – transition: 60 mm (📦 #8009)

1 object(s) - format STL
Oval duct transition adapter STL file 196x195.9 mm to 196x56 mm – transition: 60 mm
Oval connector provided as a STL 3D file. On side A, the internal cross-section is 196x195.9 mm (nearly circular), whereas on side B it is 196x56 mm (oval). The useful lengths are 20 mm (A) and 40 mm (B), respectively. Between the two sleeves, the transition runs over 60 mm, resulting in an overall length of 120 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 196 mm
side A internal height 195.9 mm
sleeve length on side A 20 mm
side B internal width 196 mm
side B internal height 56 mm
sleeve length on side B 40 mm
thickness 2 mm
transition length 60 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval hose adapter STL file 190x165 mm to 135x35 mm – transition: 45 mm (📦 #9931)

1 object(s) - format STL
Oval hose adapter STL file 190x165 mm to 135x35 mm – transition: 45 mm
Oval connector available as a STL 3D file. On side A, the internal cross-section is 190x165 mm, whereas on side B it is 135x35 mm. The sleeves also differ in useful length: 30 mm on side A and 45 mm on side B. The transition links the two ends over 45 mm, with a total overall length of 120 mm. The shell is relatively thick, with a wall thickness of 5 mm. External chamfers are added at the ends to make it easier to insert the adapter into ducts or hoses.
Parameter Value Unit
side A internal width 190 mm
side A internal height 165 mm
sleeve length on side A 30 mm
side B internal width 135 mm
side B internal height 35 mm
sleeve length on side B 45 mm
thickness 5 mm
transition length 45 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside

Hose-shaped reducer STL file 195.1x195 mm to 195x35 mm – transition: 100 mm (📦 #7183)

1 object(s) - format STL
Hose-shaped reducer STL file 195.1x195 mm to 195x35 mm – transition: 100 mm
Oval pipe adapter provided as a STL 3D file. Side A offers an internal cross-section of 195.1x195 mm (nearly circular) and side B 195x35 mm (oval). The sleeve on side A provides a useful length of 50 mm, and on side B 100 mm. The transition portion extends over 100 mm and the overall length, sleeves included, is 250 mm. Wall thickness is generous (5 mm). The internal chamfers help start the duct insertion more easily.
Parameter Value Unit
side A internal width 195.1 mm
side A internal height 195 mm
sleeve length on side A 50 mm
side B internal width 195 mm
side B internal height 35 mm
sleeve length on side B 100 mm
thickness 5 mm
transition length 100 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval duct transition adapter STL 3D file 224x90 mm to 224x90 mm – transition: 140 mm (📦 #5517)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 224x90 mm to 224x90 mm – transition: 140 mm
STL 3D file for an oval hose fitting. On both sides A and B, the internal cross-section is the same: 224x90 mm. The useful length is consistent on both ends: 30 mm. The transition links the two ends over 140 mm, with a total overall length of 200 mm. The internal edges at the ends are chamfered to help guide the duct during insertion. An offset of 42 mm along the Z axis is applied to side B relative to side A.
Parameter Value Unit
side A internal width 224 mm
side A internal height 90 mm
sleeve length on side A 30 mm
side B internal width 224 mm
side B internal height 90 mm
sleeve length on side B 30 mm
thickness 3 mm
transition length 140 mm
Y offset 0 mm
Z offset 42 mm
end chamfers inside

Oval hose adapter STL file 121x120.5 mm to 90x53 mm – transition: 63 mm (📦 #9581)

1 object(s) - format STL
Oval hose adapter STL file 121x120.5 mm to 90x53 mm – transition: 63 mm
Oval coupling in STL 3D file format. On side A, the internal cross-section is 121x120.5 mm (nearly circular), whereas on side B it is 90x53 mm (oval). The sleeve on side A provides a useful length of 25 mm, and on side B 30 mm. The transition section is 63 mm long, for a final overall length of 118 mm. Internal chamfers at the ends improve assembly and make insertion smoother. An offset of 31.5 mm along the Z axis is applied to side B relative to side A.
Parameter Value Unit
side A internal width 121 mm
side A internal height 120.5 mm
sleeve length on side A 25 mm
side B internal width 90 mm
side B internal height 53 mm
sleeve length on side B 30 mm
thickness 2 mm
transition length 63 mm
Y offset 0 mm
Z offset 31.5 mm
end chamfers inside

Oval hose adapter STL 3D file 183x71 mm to 98.1x98 mm – transition: 30 mm (📦 #7199)

1 object(s) - format STL
Oval hose adapter STL 3D file 183x71 mm to 98.1x98 mm – transition: 30 mm
Oval duct coupling provided as a STL 3D file. On side A, the internal cross-section is 183x71 mm (oval), whereas on side B it is 98.1x98 mm (nearly circular). The useful sleeve length on side A is 10 mm, while on side B it reaches 50 mm. The transition links the two ends over 30 mm, with a total overall length of 90 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 183 mm
side A internal height 71 mm
sleeve length on side A 10 mm
side B internal width 98.1 mm
side B internal height 98 mm
sleeve length on side B 50 mm
thickness 2 mm
transition length 30 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval hose adapter STL file 130x90 mm to 100x40 mm – transition: 100 mm (📦 #4335)

1 object(s) - format STL
Oval hose adapter STL file 130x90 mm to 100x40 mm – transition: 100 mm
STL 3D file for an oval adapter. The internal cross-section on side A is 130x90 mm, while on side B it is 100x40 mm. The useful sleeve length on side A is 50 mm, while on side B it reaches 20 mm. The transition section between the two ends is 100 mm long, for an overall length of 170 mm (sleeve A, transition and sleeve B). No chamfer is applied at the ends, so both the inner and outer edges remain sharp.
Parameter Value Unit
side A internal width 130 mm
side A internal height 90 mm
sleeve length on side A 50 mm
side B internal width 100 mm
side B internal height 40 mm
sleeve length on side B 20 mm
thickness 3 mm
transition length 100 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval hose adapter STL 3D file 176x77 mm to 77x76 mm – transition: 36 mm (📦 #5052)

1 object(s) - format STL
Oval hose adapter STL 3D file 176x77 mm to 77x76 mm – transition: 36 mm
STL 3D file for an oval duct coupling. On side A, the internal cross-section is 176x77 mm (oval), whereas on side B it is 77x76 mm (nearly circular). The useful sleeve length is the same on both sides, 20 mm. The transition section between the two ends is 36 mm long, for an overall length of 76 mm (sleeve A, transition and sleeve B). Both the inner and outer edges at the ends remain unchamfered.
Parameter Value Unit
side A internal width 176 mm
side A internal height 77 mm
sleeve length on side A 20 mm
side B internal width 77 mm
side B internal height 76 mm
sleeve length on side B 20 mm
thickness 2 mm
transition length 36 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval duct transition adapter STL file 120x80 mm to 90x70 mm – transition: 30 mm (📦 #4220)

1 object(s) - format STL
Oval duct transition adapter STL file 120x80 mm to 90x70 mm – transition: 30 mm
Oval duct fitting in STL 3D file format. Side A offers an internal cross-section of 120x80 mm and side B 90x70 mm. The useful sleeve length is the same on both sides, 20 mm. The transition portion extends over 30 mm and the overall length, sleeves included, is 70 mm. The ends are left without chamfers, with raw inner and outer edges.
Parameter Value Unit
side A internal width 120 mm
side A internal height 80 mm
sleeve length on side A 20 mm
side B internal width 90 mm
side B internal height 70 mm
sleeve length on side B 20 mm
thickness 3 mm
transition length 30 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval duct transition fitting STL file 106x78 mm to 82x81 mm – transition: 32 mm (📦 #5055)

1 object(s) - format STL
Oval duct transition fitting STL file 106x78 mm to 82x81 mm – transition: 32 mm
Oval duct coupling provided as a STL 3D file. Side A offers an internal cross-section of 106x78 mm (oval) and side B 82x81 mm (nearly circular). The sleeve on side A provides a useful length of 20 mm, and on side B 25 mm. The central transition occupies 32 mm, bringing the overall length to 77 mm. The ends are left without chamfers, with raw inner and outer edges.
Parameter Value Unit
side A internal width 106 mm
side A internal height 78 mm
sleeve length on side A 20 mm
side B internal width 82 mm
side B internal height 81 mm
sleeve length on side B 25 mm
thickness 3 mm
transition length 32 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval hose adapter STL file 90.1x90 mm to 100x40 mm – transition: 100 mm (📦 #4332)

1 object(s) - format STL
Oval hose adapter STL file 90.1x90 mm to 100x40 mm – transition: 100 mm
STL 3D file for an oval adapter. Side A offers an internal cross-section of 90.1x90 mm (nearly circular) and side B 100x40 mm (oval). The useful sleeve length on side A is 50 mm, while on side B it reaches 20 mm. The transition section is 100 mm long, for a final overall length of 170 mm. The external chamfers improve fit when inserting the adapter into ducts or hoses.
Parameter Value Unit
side A internal width 90.1 mm
side A internal height 90 mm
sleeve length on side A 50 mm
side B internal width 100 mm
side B internal height 40 mm
sleeve length on side B 20 mm
thickness 3 mm
transition length 100 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside

Hose-shaped reducer STL 3D file 140x80 mm to 130x35 mm – transition: 40 mm (📦 #4346)

1 object(s) - format STL
Hose-shaped reducer STL 3D file 140x80 mm to 130x35 mm – transition: 40 mm
STL 3D file for an oval hose fitting. The internal cross-section on side A is 140x80 mm, while on side B it is 130x35 mm. You get a sleeve of 8 mm on side A and 6 mm on side B. The transition links the two ends over 40 mm, with a total overall length of 54 mm. Internal chamfers at the ends improve assembly and make insertion smoother.
Parameter Value Unit
side A internal width 140 mm
side A internal height 80 mm
sleeve length on side A 8 mm
side B internal width 130 mm
side B internal height 35 mm
sleeve length on side B 6 mm
thickness 2 mm
transition length 40 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Hose-shaped reducer STL 3D file 140x139 mm to 250x20 mm – transition: 75 mm (📦 #9613)

1 object(s) - format STL
Hose-shaped reducer STL 3D file 140x139 mm to 250x20 mm – transition: 75 mm
STL 3D file for an oval pipe adapter. The internal cross-section on side A is 140x139 mm (nearly circular), while on side B it is 250x20 mm (oval). On side A, the sleeve is 50 mm long, and on side B 100 mm. Between the two sleeves, the transition runs over 75 mm, resulting in an overall length of 225 mm. The ends are straight, with no chamfer at all.
Parameter Value Unit
side A internal width 140 mm
side A internal height 139 mm
sleeve length on side A 50 mm
side B internal width 250 mm
side B internal height 20 mm
sleeve length on side B 100 mm
thickness 3 mm
transition length 75 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval duct transition adapter STL 3D file 276.2x79.3 mm to 300x133.3 mm – transition: 20 mm (📦 #5213)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 276.2x79.3 mm to 300x133.3 mm – transition: 20 mm
STL 3D file for an oval connector. On side A, the internal cross-section is 276.2x79.3 mm, whereas on side B it is 300x133.3 mm. You get a sleeve of 50 mm on side A and 5 mm on side B. The central transition occupies 20 mm, bringing the overall length to 75 mm. The wall is on the thicker side at 4 mm. Internal chamfers are added at the ends to make assembly and duct insertion easier.
Parameter Value Unit
side A internal width 276.2 mm
side A internal height 79.3 mm
sleeve length on side A 50 mm
side B internal width 300 mm
side B internal height 133.3 mm
sleeve length on side B 5 mm
thickness 4 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval duct transition adapter STL file 102x74 mm to 84x83 mm – transition: 32 mm (📦 #5550)

1 object(s) - format STL
Oval duct transition adapter STL file 102x74 mm to 84x83 mm – transition: 32 mm
Oval duct coupling in STL 3D file format. Side A offers an internal cross-section of 102x74 mm (oval) and side B 84x83 mm (nearly circular). The sleeve on side A provides a useful length of 20 mm, and on side B 25 mm. The transition portion extends over 32 mm and the overall length, sleeves included, is 77 mm. The ends are straight, with no chamfer at all.
Parameter Value Unit
side A internal width 102 mm
side A internal height 74 mm
sleeve length on side A 20 mm
side B internal width 84 mm
side B internal height 83 mm
sleeve length on side B 25 mm
thickness 2 mm
transition length 32 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval duct transition fitting STL file 102x74 mm to 83.5x83 mm – transition: 32 mm (📦 #5552)

1 object(s) - format STL
Oval duct transition fitting STL file 102x74 mm to 83.5x83 mm – transition: 32 mm
Oval duct transition adapter available as a STL 3D file. On side A, the internal cross-section is 102x74 mm (oval), whereas on side B it is 83.5x83 mm (nearly circular). The useful lengths are 20 mm (A) and 25 mm (B), respectively. The central transition occupies 32 mm, bringing the overall length to 77 mm. Both the inner and outer edges at the ends remain unchamfered.
Parameter Value Unit
side A internal width 102 mm
side A internal height 74 mm
sleeve length on side A 20 mm
side B internal width 83.5 mm
side B internal height 83 mm
sleeve length on side B 25 mm
thickness 2 mm
transition length 32 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Hose-shaped reducer STL file 145x144 mm to 250x20 mm – transition: 75 mm (📦 #9611)

1 object(s) - format STL
Hose-shaped reducer STL file 145x144 mm to 250x20 mm – transition: 75 mm
STL 3D file for an oval duct transition adapter. On side A, the internal cross-section is 145x144 mm (nearly circular), whereas on side B it is 250x20 mm (oval). On side A, the sleeve is 50 mm long, and on side B 100 mm. The transition section between the two ends is 75 mm long, for an overall length of 225 mm (sleeve A, transition and sleeve B). The shell is relatively thick, with a wall thickness of 4 mm. Both the inner and outer edges at the ends remain unchamfered.
Parameter Value Unit
side A internal width 145 mm
side A internal height 144 mm
sleeve length on side A 50 mm
side B internal width 250 mm
side B internal height 20 mm
sleeve length on side B 100 mm
thickness 4 mm
transition length 75 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval duct transition adapter STL file 120x80 mm to 90x70 mm – transition: 30 mm (📦 #4347)

1 object(s) - format STL
Oval duct transition adapter STL file 120x80 mm to 90x70 mm – transition: 30 mm
STL 3D file for an oval adapter. The internal cross-section on side A is 120x80 mm, while on side B it is 90x70 mm. The sleeves on sides A and B have the same useful length of 5 mm. The transition section is 30 mm long, for a final overall length of 40 mm. No chamfer is applied at the ends, so both the inner and outer edges remain sharp.
Parameter Value Unit
side A internal width 120 mm
side A internal height 80 mm
sleeve length on side A 5 mm
side B internal width 90 mm
side B internal height 70 mm
sleeve length on side B 5 mm
thickness 3 mm
transition length 30 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Hose-shaped reducer STL 3D file 220x100 mm to 185x55 mm – transition: 20 mm (📦 #4326)

1 object(s) - format STL
Hose-shaped reducer STL 3D file 220x100 mm to 185x55 mm – transition: 20 mm
Oval duct adapter in STL 3D file format. The internal cross-section on side A is 220x100 mm, while on side B it is 185x55 mm. A uniform useful length of 5 mm is available on both sleeves. The transition links the two ends over 20 mm, with a total overall length of 30 mm. With 1 mm of thickness, the wall remains flexible and material-efficient. The external edges at the ends are chamfered, which simplifies inserting the adapter into the duct. Side B is offset by 9 mm along the Y axis and 9 mm along the Z axis relative to side A.
Parameter Value Unit
side A internal width 220 mm
side A internal height 100 mm
sleeve length on side A 5 mm
side B internal width 185 mm
side B internal height 55 mm
sleeve length on side B 5 mm
thickness 1 mm
transition length 20 mm
Y offset 9 mm
Z offset 9 mm
end chamfers outside

Oval duct transition adapter STL file 102x74 mm to 79x78 mm – transition: 32 mm (📦 #5056)

1 object(s) - format STL
Oval duct transition adapter STL file 102x74 mm to 79x78 mm – transition: 32 mm
STL 3D file for an oval connector. Side A offers an internal cross-section of 102x74 mm (oval) and side B 79x78 mm (nearly circular). You get a sleeve of 20 mm on side A and 25 mm on side B. The central transition occupies 32 mm, bringing the overall length to 77 mm. The ends are straight, with no chamfer at all.
Parameter Value Unit
side A internal width 102 mm
side A internal height 74 mm
sleeve length on side A 20 mm
side B internal width 79 mm
side B internal height 78 mm
sleeve length on side B 25 mm
thickness 2 mm
transition length 32 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval hose adapter STL 3D file 220x100 mm to 185x55 mm – transition: 24 mm (📦 #4325)

1 object(s) - format STL
Oval hose adapter STL 3D file 220x100 mm to 185x55 mm – transition: 24 mm
STL 3D file for an oval duct coupling. On side A, the internal cross-section is 220x100 mm, whereas on side B it is 185x55 mm. The sleeve on side A provides a useful length of 5 mm, and on side B 6 mm. The transition links the two ends over 24 mm, with a total overall length of 35 mm. A thickness of 1 mm provides a very light, thin shell. The external chamfers improve fit when inserting the adapter into ducts or hoses. Compared to side A, side B is shifted by 11 mm along the Y axis and 11 mm along the Z axis.
Parameter Value Unit
side A internal width 220 mm
side A internal height 100 mm
sleeve length on side A 5 mm
side B internal width 185 mm
side B internal height 55 mm
sleeve length on side B 6 mm
thickness 1 mm
transition length 24 mm
Y offset 11 mm
Z offset 11 mm
end chamfers outside

Oval duct transition fitting STL 3D file 102x74 mm to 83.5x83 mm – transition: 25 mm (📦 #7994)

1 object(s) - format STL
Oval duct transition fitting STL 3D file 102x74 mm to 83.5x83 mm – transition: 25 mm
Oval duct coupling in STL 3D file format. Side A offers an internal cross-section of 102x74 mm (oval) and side B 83.5x83 mm (nearly circular). You get a sleeve of 15 mm on side A and 20 mm on side B. The transition section is 25 mm long, for a final overall length of 60 mm. Both the inner and outer edges at the ends remain unchamfered.
Parameter Value Unit
side A internal width 102 mm
side A internal height 74 mm
sleeve length on side A 15 mm
side B internal width 83.5 mm
side B internal height 83 mm
sleeve length on side B 20 mm
thickness 2 mm
transition length 25 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none