Custom Oval duct transition fitting STL file 67x47 mm to 55x35 mm – transition: 90 mm 📦#10860

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STL 3D file for an oval pipe adapter. Side A offers an internal cross-section of 67x47 mm and side B 55x35 mm. A uniform useful length of 10 mm is available on both sleeves. The central transition occupies 90 mm, bringing the overall length to 110 mm. The ends are left without chamfers, with raw inner and outer edges.
Generation date: 2026-08-09
3D Model Oval duct transition fitting STL file 67x47 mm to 55x35 mm – transition: 90 mm

3D model download

Free
  • oval-duct-transition-fitting-w_model10860-nb0_dd{id}.stl : 1.9 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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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 67 mm (≃2 5/8 in)
#2 side A internal height 47 mm (≃1.85 in)
#3 sleeve length on side A 10 mm (≃0.39 in)
#4 side B internal width 55 mm (≃2.17 in)
#5 side B internal height 35 mm (≃1 3/8 in)
#6 sleeve length on side B 10 mm (≃0.39 in)
#7 thickness 2 mm (≃0.08 in)
#8 transition length 90 mm (≃3.54 in)
#9 Y offset 0 mm (0 in)
#10 Z offset 0 mm (0 in)
#11 end chamfers none
Metadata Value
external width on side A 71 mm (≃2.80 in)
external height on side A 51 mm (≃2 in)
external width on side B 59 mm (≃2 5/16 in)
external height on side B 39 mm (≃1.54 in)
total length 110 mm (≃4.33 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 63x47 mm to 53x37 mm – transition: 110 mm (📦 #10859)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 63x47 mm to 53x37 mm – transition: 110 mm
Oval adapter available as a STL 3D file. Side A offers an internal cross-section of 63x47 mm and side B 53x37 mm. Both sleeves share an identical useful length of 5 mm. Between the two sleeves, the transition runs over 110 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 63 mm
side A internal height 47 mm
sleeve length on side A 5 mm
side B internal width 53 mm
side B internal height 37 mm
sleeve length on side B 5 mm
thickness 2 mm
transition length 110 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

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 duct transition fitting STL 3D file 67x46 mm to 67.1x67 mm – transition: 20 mm (📦 #11099)

1 object(s) - format STL
Oval duct transition fitting STL 3D file 67x46 mm to 67.1x67 mm – transition: 20 mm
STL 3D file for an oval adapter. The internal cross-section on side A is 67x46 mm (oval), while on side B it is 67.1x67 mm (nearly circular). Both sleeves share an identical useful length of 8 mm. The transition links the two ends over 20 mm, with a total overall length of 36 mm. Both the inner and outer edges at the ends remain unchamfered.
Parameter Value Unit
side A internal width 67 mm
side A internal height 46 mm
sleeve length on side A 8 mm
side B internal width 67.1 mm
side B internal height 67 mm
sleeve length on side B 8 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval duct transition adapter STL 3D file 67x46 mm to 67.1x67 mm – transition: 20 mm (📦 #11094)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 67x46 mm to 67.1x67 mm – transition: 20 mm
Oval duct fitting provided as a STL 3D file. The internal cross-section on side A is 67x46 mm (oval), while on side B it is 67.1x67 mm (nearly circular). A uniform useful length of 14 mm is available on both sleeves. The transition links the two ends over 20 mm, with a total overall length of 48 mm. No chamfer is applied at the ends, so both the inner and outer edges remain sharp.
Parameter Value Unit
side A internal width 67 mm
side A internal height 46 mm
sleeve length on side A 14 mm
side B internal width 67.1 mm
side B internal height 67 mm
sleeve length on side B 14 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

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 fitting STL 3D file 69x39 mm to 70x69 mm – transition: 30 mm (📦 #11164)

1 object(s) - format STL
Oval duct transition fitting STL 3D file 69x39 mm to 70x69 mm – transition: 30 mm
Oval duct fitting in STL 3D file format. The internal cross-section on side A is 69x39 mm (oval), while on side B it is 70x69 mm (nearly circular). The useful sleeve length on side A is 20 mm, while on side B it reaches 10 mm. The transition section is 30 mm long, for a final overall length of 60 mm. The ends are straight, with no chamfer at all.
Parameter Value Unit
side A internal width 69 mm
side A internal height 39 mm
sleeve length on side A 20 mm
side B internal width 70 mm
side B internal height 69 mm
sleeve length on side B 10 mm
thickness 3 mm
transition length 30 mm
Y offset 0 mm
Z offset 0 mm
end chamfers none

Oval hose adapter STL file 30.7x30.6 mm to 30.7x12 mm – transition: 20 mm (📦 #7614)

1 object(s) - format STL
Oval hose adapter STL file 30.7x30.6 mm to 30.7x12 mm – transition: 20 mm
Oval coupling in STL 3D file format. The internal cross-section on side A is 30.7x30.6 mm (nearly circular), while on side B it is 30.7x12 mm (oval). The useful length is consistent on both ends: 20 mm. The central transition occupies 20 mm, bringing the overall length to 60 mm. The ends are straight, with no chamfer at all. Compared to side A, side B is shifted by 10 mm along the Z axis.
Parameter Value Unit
side A internal width 30.7 mm
side A internal height 30.6 mm
sleeve length on side A 20 mm
side B internal width 30.7 mm
side B internal height 12 mm
sleeve length on side B 20 mm
thickness 2 mm
transition length 20 mm
Y offset 0 mm
Z offset 10 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 adapter STL 3D file 20.1x10 mm to 19.1x19 mm – transition: 100 mm (📦 #7574)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 20.1x10 mm to 19.1x19 mm – transition: 100 mm
STL 3D file for an oval adapter. On side A, the internal cross-section is 20.1x10 mm (oval), whereas on side B it is 19.1x19 mm (nearly circular). Each sleeve provides a useful length of 10 mm. The transition links the two ends over 100 mm, with a total overall length of 120 mm. The shell stays very lightweight, with only 1 mm of wall thickness. The internal edges at the ends are chamfered to help guide the duct during insertion. An offset of 10 mm along the Z axis is applied to side B relative to side A.
Parameter Value Unit
side A internal width 20.1 mm
side A internal height 10 mm
sleeve length on side A 10 mm
side B internal width 19.1 mm
side B internal height 19 mm
sleeve length on side B 10 mm
thickness 1 mm
transition length 100 mm
Y offset 0 mm
Z offset 10 mm
end chamfers inside

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 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 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 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

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 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 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

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 adapter STL 3D file 20x19.9 mm to 12x11.9 mm – transition: 30 mm (📦 #6545)

1 object(s) - format STL
Oval duct transition adapter STL 3D file 20x19.9 mm to 12x11.9 mm – transition: 30 mm
Oval adapter in STL 3D file format. Side A offers an internal cross-section of 20x19.9 mm and side B 12x11.9 mm, both close to circular. On side A, the sleeve is 35 mm long, and on side B 14 mm. The transition section between the two ends is 30 mm long, for an overall length of 79 mm (sleeve A, transition and sleeve B). The ends are left without chamfers, with raw inner and outer edges.
Parameter Value Unit
side A internal width 20 mm
side A internal height 19.9 mm
sleeve length on side A 35 mm
side B internal width 12 mm
side B internal height 11.9 mm
sleeve length on side B 14 mm
thickness 2 mm
transition length 30 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 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 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 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 duct transition fitting STL 3D file 23.1x11.7 mm to 19x18.9 mm – transition: 40 mm (📦 #7779)

1 object(s) - format STL
Oval duct transition fitting STL 3D file 23.1x11.7 mm to 19x18.9 mm – transition: 40 mm
STL 3D file for an oval connector. Side A offers an internal cross-section of 23.1x11.7 mm (oval) and side B 19x18.9 mm (nearly circular). The sleeve on side A provides a useful length of 20 mm, and on side B 15 mm. The transition links the two ends over 40 mm, with a total overall length of 75 mm. Wall thickness is minimal at 1 mm. Internal chamfers are added at the ends to make assembly and duct insertion easier. An offset of 8.8 mm along the Z axis is applied to side B relative to side A.
Parameter Value Unit
side A internal width 23.1 mm
side A internal height 11.7 mm
sleeve length on side A 20 mm
side B internal width 19 mm
side B internal height 18.9 mm
sleeve length on side B 15 mm
thickness 1 mm
transition length 40 mm
Y offset 0 mm
Z offset 8.8 mm
end chamfers inside

Oval duct transition fitting STL file 22.9x11.6 mm to 18x17.9 mm – transition: 40 mm (📦 #7787)

1 object(s) - format STL
Oval duct transition fitting STL file 22.9x11.6 mm to 18x17.9 mm – transition: 40 mm
STL 3D file for an oval hose fitting. The internal cross-section on side A is 22.9x11.6 mm (oval), while on side B it is 18x17.9 mm (nearly circular). The useful sleeve length on side A is 20 mm, while on side B it reaches 10 mm. The central transition occupies 40 mm, bringing the overall length to 70 mm. With 1 mm of thickness, the wall remains flexible and material-efficient. Internal chamfers are added at the ends to make assembly and duct insertion easier. An offset of 8.7 mm along the Z axis is applied to side B relative to side A.
Parameter Value Unit
side A internal width 22.9 mm
side A internal height 11.6 mm
sleeve length on side A 20 mm
side B internal width 18 mm
side B internal height 17.9 mm
sleeve length on side B 10 mm
thickness 1 mm
transition length 40 mm
Y offset 0 mm
Z offset 8.7 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 duct transition fitting STL file 52.5x22.7 mm to 52.5x22.7 mm – transition: 35.5 mm (📦 #11030)

1 object(s) - format STL
Oval duct transition fitting STL file 52.5x22.7 mm to 52.5x22.7 mm – transition: 35.5 mm
Oval duct transition adapter available as a STL 3D file. Both ends share the same internal cross-section, 52.5x22.7 mm. A uniform useful length of 30 mm is available on both sleeves. The transition section is 35.5 mm long, for a final overall length of 95.5 mm. Wall thickness is minimal at 1 mm. The internal chamfers help start the duct insertion more easily.
Parameter Value Unit
side A internal width 52.5 mm
side A internal height 22.7 mm
sleeve length on side A 30 mm
side B internal width 52.5 mm
side B internal height 22.7 mm
sleeve length on side B 30 mm
thickness 1 mm
transition length 35.5 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

Oval hose adapter STL 3D file 52.5x22.7 mm to 52.5x22.7 mm – transition: 35 mm (📦 #11027)

1 object(s) - format STL
Oval hose adapter STL 3D file 52.5x22.7 mm to 52.5x22.7 mm – transition: 35 mm
Oval duct coupling available as a STL 3D file. Both ends share the same internal cross-section, 52.5x22.7 mm. Each sleeve provides a useful length of 30 mm. The central transition occupies 35 mm, bringing the overall length to 95 mm. With 1 mm of thickness, the wall remains flexible and material-efficient. The internal edges at the ends are chamfered to help guide the duct during insertion.
Parameter Value Unit
side A internal width 52.5 mm
side A internal height 22.7 mm
sleeve length on side A 30 mm
side B internal width 52.5 mm
side B internal height 22.7 mm
sleeve length on side B 30 mm
thickness 1 mm
transition length 35 mm
Y offset 0 mm
Z offset 0 mm
end chamfers inside

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