Custom Oval hose adapter STL 3D file 104x10 mm to 102x100 mm – transition: 50 mm 📦#5359

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Oval hose adapter available as a STL 3D file. The internal cross-section on side A is 104x10 mm (oval), while on side B it is 102x100 mm (nearly circular). The sleeve on side A provides a useful length of 40 mm, and on side B 100 mm. Between the two sleeves, the transition runs over 50 mm, resulting in an overall length of 190 mm. Internal chamfers are added at the ends to make assembly and duct insertion easier.
Generation date: 2025-12-26
3D Model Oval hose adapter STL 3D file 104x10 mm to 102x100 mm – transition: 50 mm

3D model download

Free
  • oval-duct-transition-fitting-w_model5359-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)
Safe download
Instant .zip download — no email, no account

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 104 mm (≃4.09 in)
#2 side A internal height 10 mm (≃0.39 in)
#3 sleeve length on side A 40 mm (≃1 9/16 in)
#4 side B internal width 102 mm (≃4.02 in)
#5 side B internal height 100 mm (≃3 15/16 in)
#6 sleeve length on side B 100 mm (≃3 15/16 in)
#7 thickness 2 mm (≃0.08 in)
#8 transition length 50 mm (≃1.97 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 108 mm (≃4 1/4 in)
external height on side A 14 mm (≃9/16 in)
external width on side B 106 mm (≃4 3/16 in)
external height on side B 104 mm (≃4.09 in)
total length 190 mm (≃7.48 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 3D file 77x75 mm to 60x55 mm – transition: 50 mm (📦 #9178)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 77x75 mm to 60x55 mm – transition: 50 mm
Oval adapter available as a STL 3D file. The internal cross-section on side A is 77x75 mm (nearly circular), while on side B it is 60x55 mm (oval). The useful sleeve length on side A is 50 mm, while on side B it reaches 100 mm. Between the two sleeves, the transition runs over 50 mm, resulting in an overall length of 200 mm. The wall is on the thicker side at 4 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 77 mm
side A internal height 75 mm
sleeve length on side A 50 mm
side B internal width 60 mm
side B internal height 55 mm
sleeve length on side B 100 mm
thickness 4 mm
transition length 50 mm
Y offset 0 mm
Z offset 0 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 158x40 mm to 113x112 mm – transition: 20 mm (📦 #5266)

1 object(s) - format STL
Oval hose adapter STL file 158x40 mm to 113x112 mm – transition: 20 mm
Oval hose adapter in STL 3D file format. The internal cross-section on side A is 158x40 mm (oval), while on side B it is 113x112 mm (nearly circular). Each sleeve provides a useful length of 30 mm. The central transition occupies 20 mm, bringing the overall length to 80 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 158 mm
side A internal height 40 mm
sleeve length on side A 30 mm
side B internal width 113 mm
side B internal height 112 mm
sleeve length on side B 30 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside

Hose-shaped reducer STL file 106x52 mm to 72x71 mm – transition: 32 mm (📦 #7860)

1 object(s) - format STL
Hose-shaped reducer STL file 106x52 mm to 72x71 mm – transition: 32 mm
Oval pipe adapter in STL 3D file format. Side A offers an internal cross-section of 106x52 mm (oval) and side B 72x71 mm (nearly circular). The sleeve on side A provides a useful length of 35 mm, and on side B 25 mm. The central transition occupies 32 mm, bringing the overall length to 92 mm. Both the inner and outer edges at the ends remain unchamfered.
Parameter Value Unit
side A internal width 106 mm
side A internal height 52 mm
sleeve length on side A 35 mm
side B internal width 72 mm
side B internal height 71 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 105x35 mm to 105x34 mm – transition: 20 mm (📦 #8809)

1 object(s) - format STL
Oval duct transition fitting STL file 105x35 mm to 105x34 mm – transition: 20 mm
Oval hose adapter provided as a STL 3D file. On side A, the internal cross-section is 105x35 mm, whereas on side B it is 105x34 mm. The useful sleeve length is the same on both sides, 40 mm. The transition links the two ends over 20 mm, with a total overall length of 100 mm. Internal chamfers are added at the ends to make assembly and duct insertion easier.
Parameter Value Unit
side A internal width 105 mm
side A internal height 35 mm
sleeve length on side A 40 mm
side B internal width 105 mm
side B internal height 34 mm
sleeve length on side B 40 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval hose adapter STL 3D file 79x68 mm to 40x30 mm – transition: 40 mm (📦 #6527)

1 object(s) - format STL
Oval hose adapter STL 3D file 79x68 mm to 40x30 mm – transition: 40 mm
Oval duct fitting provided as a STL 3D file. The internal cross-section on side A is 79x68 mm, while on side B it is 40x30 mm. On side A, the sleeve is 15 mm long, and on side B 100 mm. Between the two sleeves, the transition runs over 40 mm, resulting in an overall length of 155 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 79 mm
side A internal height 68 mm
sleeve length on side A 15 mm
side B internal width 40 mm
side B internal height 30 mm
sleeve length on side B 100 mm
thickness 3 mm
transition length 40 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

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 duct transition adapter STL 3D file 52x39 mm to 47x46 mm – transition: 20 mm (📦 #6016)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 52x39 mm to 47x46 mm – transition: 20 mm
Oval pipe adapter in STL 3D file format. The internal cross-section on side A is 52x39 mm (oval), while on side B it is 47x46 mm (nearly circular). The useful sleeve length is the same on both sides, 30 mm. The transition section is 20 mm long, for a final overall length of 80 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 52 mm
side A internal height 39 mm
sleeve length on side A 30 mm
side B internal width 47 mm
side B internal height 46 mm
sleeve length on side B 30 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval duct transition adapter STL file 52x40 mm to 44x43 mm – transition: 20 mm (📦 #6034)

1 object(s) - format STL
Oval duct transition adapter STL file 52x40 mm to 44x43 mm – transition: 20 mm
Oval hose adapter in STL 3D file format. On side A, the internal cross-section is 52x40 mm (oval), whereas on side B it is 44x43 mm (nearly circular). Each sleeve provides a useful length of 30 mm. Between the two sleeves, the transition runs over 20 mm, resulting in an overall length of 80 mm. Internal chamfers are added at the ends to make assembly and duct insertion easier.
Parameter Value Unit
side A internal width 52 mm
side A internal height 40 mm
sleeve length on side A 30 mm
side B internal width 44 mm
side B internal height 43 mm
sleeve length on side B 30 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

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 36.1x32.9 mm to 31.6x31.5 mm – transition: 20 mm (📦 #4829)

1 object(s) - format STL
Oval hose adapter STL file 36.1x32.9 mm to 31.6x31.5 mm – transition: 20 mm
Oval hose adapter available as a STL 3D file. The internal cross-section on side A is 36.1x32.9 mm (oval), while on side B it is 31.6x31.5 mm (nearly circular). Both sleeves share an identical useful length of 42 mm. The transition section is 20 mm long, for a final overall length of 104 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 36.1 mm
side A internal height 32.9 mm
sleeve length on side A 42 mm
side B internal width 31.6 mm
side B internal height 31.5 mm
sleeve length on side B 42 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

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

Oval duct transition adapter STL file 102x74 mm to 83.5x83 mm – transition: 22 mm (📦 #8051)

1 object(s) - format STL
Oval duct transition adapter STL file 102x74 mm to 83.5x83 mm – transition: 22 mm
STL 3D file for an oval coupling. Side A offers an internal cross-section of 102x74 mm (oval) and side B 83.5x83 mm (nearly circular). The useful sleeve length on side A is 15 mm, while on side B it reaches 18 mm. The central transition occupies 22 mm, bringing the overall length to 55 mm. No chamfer is applied at the ends, so both the inner and outer edges remain sharp.
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 18 mm
thickness 2 mm
transition length 22 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval duct transition fitting STL file 106x52 mm to 72x71 mm – transition: 32 mm (📦 #7890)

1 object(s) - format STL
Oval duct transition fitting STL file 106x52 mm to 72x71 mm – transition: 32 mm
Oval coupling available as a STL 3D file. The internal cross-section on side A is 106x52 mm (oval), while on side B it is 72x71 mm (nearly circular). The sleeve on side A provides a useful length of 20 mm, and on side B 25 mm. The transition section is 32 mm long, for a final overall length of 77 mm. With 4 mm of wall thickness, the adapter gains extra strength. The ends are straight, with no chamfer at all.
Parameter Value Unit
side A internal width 106 mm
side A internal height 52 mm
sleeve length on side A 20 mm
side B internal width 72 mm
side B internal height 71 mm
sleeve length on side B 25 mm
thickness 4 mm
transition length 32 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 fitting STL 3D file 55x25 mm to 43x42 mm – transition: 20 mm (📦 #8548)

1 object(s) - format STL
Oval duct transition fitting STL 3D file 55x25 mm to 43x42 mm – transition: 20 mm
Oval hose adapter in STL 3D file format. On side A, the internal cross-section is 55x25 mm (oval), whereas on side B it is 43x42 mm (nearly circular). The sleeve on side A provides a useful length of 50 mm, and on side B 30 mm. The central transition occupies 20 mm, bringing the overall length to 100 mm. The ends are left without chamfers, with raw inner and outer edges.
Parameter Value Unit
side A internal width 55 mm
side A internal height 25 mm
sleeve length on side A 50 mm
side B internal width 43 mm
side B internal height 42 mm
sleeve length on side B 30 mm
thickness 3 mm
transition length 20 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 53x38 mm to 51x50 mm – transition: 20 mm (📦 #6008)

1 object(s) - format STL
Oval duct transition fitting STL file 53x38 mm to 51x50 mm – transition: 20 mm
Oval duct transition adapter provided as a STL 3D file. Side A offers an internal cross-section of 53x38 mm (oval) and side B 51x50 mm (nearly circular). Both sleeves share an identical useful length of 25 mm. The transition section is 20 mm long, for a final overall length of 70 mm. No chamfer is applied at the ends, so both the inner and outer edges remain sharp.
Parameter Value Unit
side A internal width 53 mm
side A internal height 38 mm
sleeve length on side A 25 mm
side B internal width 51 mm
side B internal height 50 mm
sleeve length on side B 25 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval duct transition fitting STL 3D file 54x38 mm to 43x42 mm – transition: 20 mm (📦 #6049)

1 object(s) - format STL
Oval duct transition fitting STL 3D file 54x38 mm to 43x42 mm – transition: 20 mm
Oval coupling provided as a STL 3D file. The internal cross-section on side A is 54x38 mm (oval), while on side B it is 43x42 mm (nearly circular). Both sleeves share an identical useful length of 30 mm. The transition section between the two ends is 20 mm long, for an overall length of 80 mm (sleeve A, transition and sleeve B). The ends are straight, with no chamfer at all.
Parameter Value Unit
side A internal width 54 mm
side A internal height 38 mm
sleeve length on side A 30 mm
side B internal width 43 mm
side B internal height 42 mm
sleeve length on side B 30 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval hose adapter STL 3D file 36.1x32.9 mm to 28.5x28.4 mm – transition: 20 mm (📦 #4833)

1 object(s) - format STL
Oval hose adapter STL 3D file 36.1x32.9 mm to 28.5x28.4 mm – transition: 20 mm
Oval duct transition adapter available as a STL 3D file. The internal cross-section on side A is 36.1x32.9 mm (oval), while on side B it is 28.5x28.4 mm (nearly circular). The useful lengths are 22 mm (A) and 42 mm (B), respectively. The central transition occupies 20 mm, bringing the overall length to 84 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 36.1 mm
side A internal height 32.9 mm
sleeve length on side A 22 mm
side B internal width 28.5 mm
side B internal height 28.4 mm
sleeve length on side B 42 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval duct transition adapter STL file 43x35 mm to 58.1x58 mm – transition: 20 mm (📦 #5388)

1 object(s) - format STL
Oval duct transition adapter STL file 43x35 mm to 58.1x58 mm – transition: 20 mm
Oval coupling in STL 3D file format. Side A offers an internal cross-section of 43x35 mm (oval) and side B 58.1x58 mm (nearly circular). The useful lengths are 18 mm (A) and 25 mm (B), respectively. The transition section is 20 mm long, for a final overall length of 63 mm. The wall is on the thicker side at 4 mm. The internal chamfers help start the duct insertion more easily.
Parameter Value Unit
side A internal width 43 mm
side A internal height 35 mm
sleeve length on side A 18 mm
side B internal width 58.1 mm
side B internal height 58 mm
sleeve length on side B 25 mm
thickness 4 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval hose adapter STL 3D file 53x52 mm to 50x28 mm – transition: 20 mm (📦 #4337)

1 object(s) - format STL
Oval hose adapter STL 3D file 53x52 mm to 50x28 mm – transition: 20 mm
Oval connector available as a STL 3D file. The internal cross-section on side A is 53x52 mm (nearly circular), while on side B it is 50x28 mm (oval). On side A, the sleeve is 20 mm long, and on side B 30 mm. The transition section is 20 mm long, for a final overall length of 70 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 53 mm
side A internal height 52 mm
sleeve length on side A 20 mm
side B internal width 50 mm
side B internal height 28 mm
sleeve length on side B 30 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval hose adapter STL file 102x74 mm to 72x71 mm – transition: 32 mm (📦 #7889)

1 object(s) - format STL
Oval hose adapter STL file 102x74 mm to 72x71 mm – transition: 32 mm
Oval connector available as a STL 3D file. On side A, the internal cross-section is 102x74 mm (oval), whereas on side B it is 72x71 mm (nearly circular). You get a sleeve of 20 mm on side A and 25 mm on side B. The transition section between the two ends is 32 mm long, for an overall length of 77 mm (sleeve A, transition and sleeve B). The shell is relatively thick, with a wall thickness of 4 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 72 mm
side B internal height 71 mm
sleeve length on side B 25 mm
thickness 4 mm
transition length 32 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval duct transition fitting STL file 50x20 mm to 35.6x35.5 mm – transition: 20 mm (📦 #9780)

1 object(s) - format STL
Oval duct transition fitting STL file 50x20 mm to 35.6x35.5 mm – transition: 20 mm
Oval duct adapter provided as a STL 3D file. Side A offers an internal cross-section of 50x20 mm (oval) and side B 35.6x35.5 mm (nearly circular). On side A, the sleeve is 20 mm long, and on side B 35 mm. The transition section between the two ends is 20 mm long, for an overall length of 75 mm (sleeve A, transition and sleeve B). The external chamfers improve fit when inserting the adapter into ducts or hoses.
Parameter Value Unit
side A internal width 50 mm
side A internal height 20 mm
sleeve length on side A 20 mm
side B internal width 35.6 mm
side B internal height 35.5 mm
sleeve length on side B 35 mm
thickness 3 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers outside

Oval hose adapter STL 3D file 106x52 mm to 72x71 mm – transition: 25 mm (📦 #7987)

1 object(s) - format STL
Oval hose adapter STL 3D file 106x52 mm to 72x71 mm – transition: 25 mm
Oval duct fitting in STL 3D file format. On side A, the internal cross-section is 106x52 mm (oval), whereas on side B it is 72x71 mm (nearly circular). The sleeve on side A provides a useful length of 15 mm, and on side B 20 mm. The transition section is 25 mm long, for a final overall length of 60 mm. Wall thickness is generous (4 mm). The ends are straight, with no chamfer at all.
Parameter Value Unit
side A internal width 106 mm
side A internal height 52 mm
sleeve length on side A 15 mm
side B internal width 72 mm
side B internal height 71 mm
sleeve length on side B 20 mm
thickness 4 mm
transition length 25 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Hose-shaped reducer STL file 88.9x34.9 mm to 46x45 mm – transition: 20 mm (📦 #9872)

1 object(s) - format STL
Hose-shaped reducer STL file 88.9x34.9 mm to 46x45 mm – transition: 20 mm
STL 3D file for an oval connector. On side A, the internal cross-section is 88.9x34.9 mm (oval), whereas on side B it is 46x45 mm (nearly circular). The useful length is consistent on both ends: 10 mm. The transition links the two ends over 20 mm, with a total overall length of 40 mm. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 88.9 mm
side A internal height 34.9 mm
sleeve length on side A 10 mm
side B internal width 46 mm
side B internal height 45 mm
sleeve length on side B 10 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval duct transition fitting STL file 40x30 mm to 21x16 mm – transition: 20 mm (📦 #7385)

1 object(s) - format STL
Oval duct transition fitting STL file 40x30 mm to 21x16 mm – transition: 20 mm
Oval coupling in STL 3D file format. The internal cross-section on side A is 40x30 mm, while on side B it is 21x16 mm. The useful lengths are 10 mm (A) and 70 mm (B), respectively. The transition portion extends over 20 mm and the overall length, sleeves included, is 100 mm. Both the inner and outer edges at the ends remain unchamfered.
Parameter Value Unit
side A internal width 40 mm
side A internal height 30 mm
sleeve length on side A 10 mm
side B internal width 21 mm
side B internal height 16 mm
sleeve length on side B 70 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none