Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65U is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 65mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ25 mm
- Stroke65 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65U
Generating 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work for its footprint. The Ø25 mm bore uses a 1/8" port and a 10 mm piston rod with an M10x1.25 male thread. Its stainless barrel and rod shrug off mild corrosion, giving a real edge over painted alternatives in damp or washdown settings. The rolled, riveted construction keeps the body compact.
In practical terms, you can plan for about 147 N of real work at 0.5 MPa, which translates to lifting a 12.5 kg part vertically with a 2:1 safety margin. The built-in fixed TPU bumper pads absorb stroke-end impact. Because this SKU lacks the -S magnet, it cannot host CMSG, DMSG or EMSG sensors; add the -S version if you need position detection.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 65 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×65 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65U Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245 N push force to deflect medium-weight cartons onto a secondary belt.
Parts Press Insertion
Presses small bearings into housings on an assembly fixture, relying on the 65 mm stroke and fixed TPU pads to soften the end-of-travel impact.
Textile Loom Tensioner
Maintains tension on a yarn guide arm in a humid textile facility, where the stainless steel barrel resists mild corrosion from ambient moisture.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65U the Right Cylinder?
When sizing this 65 mm stroke model, the smaller Ø20 bore offers 157 N of push at 0.5 MPa, while the larger Ø32 provides 402 N. The U-style back cover provides a 90-degree port orientation, which helps when routing air lines in tight machinery. Standard LB foot, FA flange, SDB pivot and TC trunnion brackets fit the ISO 6432 mounting interface.
Remember that venting the air supply causes the piston to drift, as the TPU pads only decelerate the stroke end rather than locking the rod. Install an external pilot check valve or rod lock to suspend vertical loads. For a 65 mm stroke, side-load risks are moderate, but ensure the rod end is guided to prevent bending.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65U FAQ
At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa the push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port is 1/8" and the male rod thread is M10x1.25.
No, this specific SKU does not have a magnet. You must specify the -S variant (MI25X25U-S) to use CMSG, DMSG or EMSG magnetic switches. The cylinder uses the ISO 6432 mounting interface and features fixed TPU bumper pads, not an adjustable air cushion.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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