Custom Oval duct transition fitting STL file 160x50 mm to 45.1x45 mm – transition: 20 mm 📦#5186

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Oval coupling available as a STL 3D file. On side A, the internal cross-section is 160x50 mm (oval), whereas on side B it is 45.1x45 mm (nearly circular). Both sleeves share an identical useful length of 20 mm. The transition section between the two ends is 20 mm long, for an overall length of 60 mm (sleeve A, transition and sleeve B). Both the inner and outer edges at the ends remain unchamfered. Side B is offset by 10 mm along the Y axis relative to side A.
Generation date: 2025-12-23
3D Model Oval duct transition fitting STL file 160x50 mm to 45.1x45 mm – transition: 20 mm

3D model download

Free
  • oval-duct-transition-fitting-w_model5186-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 160 mm (≃6 5/16 in)
#2 side A internal height 50 mm (≃1.97 in)
#3 sleeve length on side A 20 mm (≃0.79 in)
#4 side B internal width 45.1 mm (≃1.78 in)
#5 side B internal height 45 mm (≃1.77 in)
#6 sleeve length on side B 20 mm (≃0.79 in)
#7 thickness 3 mm (≃1/8 in)
#8 transition length 20 mm (≃0.79 in)
#9 Y offset 10 mm (≃0.39 in)
#10 Z offset 0 mm (0 in)
#11 end chamfers none
Metadata Value
external width on side A 166 mm (≃6.54 in)
external height on side A 56 mm (≃2.20 in)
external width on side B 51.1 mm (≃2 in)
external height on side B 51 mm (≃2 in)
total length 60 mm (≃2 3/8 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 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 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

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 hose adapter STL 3D file 79x33 mm to 46x45 mm – transition: 20 mm (📦 #4245)

1 object(s) - format STL
Oval hose adapter STL 3D file 79x33 mm to 46x45 mm – transition: 20 mm
Oval duct coupling provided as a STL 3D file. The internal cross-section on side A is 79x33 mm (oval), while on side B it is 46x45 mm (nearly circular). The useful sleeve length is the same on both sides, 10 mm. Between the two sleeves, the transition runs over 20 mm, resulting in an overall length of 40 mm. Both the inner and outer edges at the ends remain unchamfered.
Parameter Value Unit
side A internal width 79 mm
side A internal height 33 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 none

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 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

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 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

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 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 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 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 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 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 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

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 hose adapter STL file 100x15 mm to 50x28 mm – transition: 40 mm (📦 #8828)

1 object(s) - format STL
Oval hose adapter STL file 100x15 mm to 50x28 mm – transition: 40 mm
Oval pipe adapter available as a STL 3D file. On side A, the internal cross-section is 100x15 mm, whereas on side B it is 50x28 mm. The useful sleeve length is the same on both sides, 10 mm. The transition portion extends over 40 mm and the overall length, sleeves included, is 60 mm. The internal chamfers help start the duct insertion more easily.
Parameter Value Unit
side A internal width 100 mm
side A internal height 15 mm
sleeve length on side A 10 mm
side B internal width 50 mm
side B internal height 28 mm
sleeve length on side B 10 mm
thickness 2 mm
transition length 40 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 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 3D file 140x40 mm to 130x35 mm – transition: 20 mm (📦 #4267)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 140x40 mm to 130x35 mm – transition: 20 mm
Oval hose fitting available as a STL 3D file. On side A, the internal cross-section is 140x40 mm, whereas on side B it is 130x35 mm. On side A, the sleeve is 8 mm long, and on side B 6 mm. The transition portion extends over 20 mm and the overall length, sleeves included, is 34 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 40 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 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

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 150x40 mm to 130x35 mm – transition: 40 mm (📦 #4453)

1 object(s) - format STL
Oval hose adapter STL 3D file 150x40 mm to 130x35 mm – transition: 40 mm
Oval duct transition adapter in STL 3D file format. Side A offers an internal cross-section of 150x40 mm and side B 130x35 mm. The sleeve on side A provides a useful length of 8 mm, and on side B 6 mm. Between the two sleeves, the transition runs over 40 mm, resulting in an overall length of 54 mm. Internal chamfers at the ends improve assembly and make insertion smoother.
Parameter Value Unit
side A internal width 150 mm
side A internal height 40 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

Oval hose adapter STL 3D file 140x50 mm to 130x35 mm – transition: 40 mm (📦 #4345)

1 object(s) - format STL
Oval hose adapter STL 3D file 140x50 mm to 130x35 mm – transition: 40 mm
Oval connector available as a STL 3D file. On side A, the internal cross-section is 140x50 mm, whereas on side B it is 130x35 mm. You get a sleeve of 8 mm on side A and 6 mm on side B. The central transition occupies 40 mm, bringing the overall length to 54 mm. The internal chamfers help start the duct insertion more easily.
Parameter Value Unit
side A internal width 140 mm
side A internal height 50 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

Oval hose adapter STL 3D file 140x40 mm to 130x35 mm – transition: 40 mm (📦 #4268)

1 object(s) - format STL
Oval hose adapter STL 3D file 140x40 mm to 130x35 mm – transition: 40 mm
Oval connector available as a STL 3D file. On side A, the internal cross-section is 140x40 mm, whereas on side B it is 130x35 mm. The useful sleeve length on side A is 8 mm, while on side B it reaches 6 mm. The transition section between the two ends is 40 mm long, for an overall length of 54 mm (sleeve A, transition and sleeve B). The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 140 mm
side A internal height 40 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

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

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

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 duct transition adapter STL 3D file 160x37 mm to 45.1x45 mm – transition: 20 mm (📦 #5211)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 160x37 mm to 45.1x45 mm – transition: 20 mm
STL 3D file for an oval duct adapter. The internal cross-section on side A is 160x37 mm (oval), while on side B it is 45.1x45 mm (nearly circular). The useful length is consistent on both ends: 20 mm. The transition links the two ends over 20 mm, with a total overall length of 60 mm. External chamfers at the ends help with engagement and assembly within the duct system. Side B is offset by 10 mm along the Y axis relative to side A.
Parameter Value Unit
side A internal width 160 mm
side A internal height 37 mm
sleeve length on side A 20 mm
side B internal width 45.1 mm
side B internal height 45 mm
sleeve length on side B 20 mm
thickness 3 mm
transition length 20 mm
Y offset 10 mm
Z offset 0 mm
end chamfers outside