Tube expander AN-Series
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Product description
Product description
AN Series Tube Expanders for Small Tube Diameters
The AN Series tube expanders are designed for tubes with small inside diameters and are suitable for oil coolers, radiators, and other heat exchanger and apparatus applications. The captive mandrel design prevents a nut at the mandrel tip, thereby reducing the risk of scratches on the tube's inside diameter.
With its increased feed angle, the AN Series is designed for fast operation in manufacturing, repair, and series applications. The tools cover tube outer diameters of 1/4" and 3/8" and are suitable for tube inner diameters from 3.8 mm to 8.4 mm.
Application Range and Adjustable Range
| Tube Expander with Roll Length | Tube Sheet Adjustable Range min. A | Tube Sheet Adjustable Range max. B |
|---|---|---|
| 25.4 mm / 1" | 6.35 mm / 1/4" | 25.4 mm / 1" |
- For tubes in oil coolers, radiators, and apparatus with small tube diameters.
- Captive mandrel: no nut at the mandrel tip, reducing the risk of damage to the tube's inside diameter.
- Fast operation due to increased feed angle, suitable for production-oriented applications.
Technical Data AN Series
| Tube O.D. mm / inch |
Tube Wall Thickness | Tube I.D. | Minimum I.D. Tool Acceptance | Maximum Tool Expansion | Expander with 25.4 mm / 1" long rolls | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bwg | mm | inch | mm | inch | mm | inch | mm | inch | Complete Tool | Mandrel | Roll Set | |
| 1/4 (6.35) |
18 | 1.24 | .049 | 3.8 | .152 | 3.7 | .148 | 4.2 | .167 | A-25018 | M-21819 | R-20018 |
| 19 | 1.06 | .042 | 4.2 | .166 | 4.0 | .160 | 4.5 | .180 | A-25019 | M-21819 | R-21920 | |
| 20 | 0.88 | .035 | 4.5 | .180 | 4.4 | .175 | 4.9 | .196 | A-25020 | M-22021 | R-21920 | |
| 21 | 0.81 | .032 | 4.7 | .186 | 4.5 | .180 | 5.1 | .202 | A-25021 | M-22021 | R-22124 | |
| 22 | 0.71 | .028 | 4.9 | .194 | 4.8 | .190 | 5.4 | .213 | A-25022 | M-20022 | R-22124 | |
| 23 | 0.63 | .025 | 5.0 | .200 | 4.9 | .195 | 5.5 | .216 | A-25023 | M-22324 | R-21920 | |
| 24 | 0.55 | .022 | 5.2 | .206 | 5.1 | .201 | 5.7 | .224 | A-25024 | M-22324 | R-22124 | |
| 28 | 0.35 | .014 | 5.6 | .222 | 5.4 | .217 | 6.1 | .243 | A-25028 | M-22830 | R-22830 | |
| 29 | 0.33 | .013 | 5.7 | .224 | 5.4 | .217 | 6.1 | .243 | A-25028 | M-22830 | R-22830 | |
| 30 | 0.30 | .012 | 5.7 | .226 | 5.4 | .217 | 6.1 | .243 | A-25028 | M-22830 | R-22830 | |
| 14 | 2.10 | .083 | 5.3 | .209 | 5.1 | .204 | 5.8 | .230 | A-37514 | M-22830-B | R-21920 | |
| 15 | 1.82 | .072 | 5.8 | .231 | 5.6 | .225 | 6.6 | .265 | A-37515 | M-22830-B | R-31516 | |
| 16 | 1.65 | .065 | 6.2 | .245 | 6.0 | .238 | 7.0 | .278 | A-37516 | M-31617 | R-31516 | |
| 3/8 (9.53) |
17 | 1.47 | .058 | 6.5 | .259 | 6.4 | .253 | 7.4 | .293 | A-37517 | M-31617 | R-31720 |
| 18 | 1.24 | .049 | 7.0 | .277 | 6.8 | .270 | 7.8 | .310 | A-37518 | M-30018 | R-31720 | |
| 19 | 1.06 | .042 | 7.3 | .291 | 7.1 | .285 | 8.1 | .325 | A-37519 | M-30019 | R-31720 | |
| 20 | 0.88 | .035 | 7.7 | .305 | 7.4 | .295 | 8.4 | .335 | A-37520 | M-32021 | R-31720 | |
| 21 | 0.81 | .032 | 7.9 | .311 | 7.5 | .305 | 8.6 | .345 | A-37521 | M-32021 | R-32122 | |
| 22 | 0.71 | .028 | 8.1 | .319 | 7.9 | .312 | 8.9 | .353 | A-37522 | M-32224 | R-32122 | |
| 23 | 0.63 | .025 | 8.2 | .325 | 8.1 | .318 | 9.2 | .363 | A-37523 | M-32224 | R-32324 | |
| 24 | 0.55 | .022 | 8.4 | .331 | 8.1 | .318 | 9.2 | .363 | A-37523 | M-32224 | R-32324 | |
Note: All AN Series tube expanders come standard with 1/4" square drive.
Product Description
The AN Series is the ideal solution for precise tube expansion in small tube diameters found in oil coolers, radiators, and compact heat exchangers. These tube expanders are designed for tube outer diameters of 1/4" and 3/8", and tube inner diameters ranging from 3.8 to 8.4 mm. The captive mandrel prevents interference from components at the mandrel tip, protecting the tube's inner diameter during expansion. With an increased feed angle, the tool operates quickly and consistently – perfect for maintenance, repair, apparatus construction, and production-oriented applications.
Hytool Quality Promise
Hytool Quality Promise
At hyTool, quality comes first. Our tools and systems are reliable, durable, and meet all relevant national and international standards. Each product is tested, documented, and designed for continuous professional use – so you can rely on safe and reproducible results in every application.
The protection of your data is our highest priority – your personal information will be treated confidentially and processed exclusively in accordance with applicable data protection regulations.
