Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70U is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 70mm 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
- Stroke70 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 MI25X70U
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust actuation tasks. The 25 mm bore pairs a 10 mm piston rod with a 1/8" port and an M10x1.25 male thread. Its riveted barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments. Because it lacks the -S suffix, this specific SKU cannot host CMSG, DMSG or EMSG magnetic switches.
At 0.5 MPa you can expect about 147 N of actual work, letting you lift roughly 12.5 kg vertically with a safe 2:1 margin. The built-in fixed TPU bumper pads soften stroke-end impact without offering adjustable cushioning. A rear U cover provides a 90-degree port and mounting orientation, while the body conforms to ISO 6432 mounting dimensions for straightforward bracket integration.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 70 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 MI25X70U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×70 | 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 MI25X70U Is Used
Package Diverting Gate
Uses the 245.3 N push force to pivot sorting gates on a packaging conveyor, reliably deflecting cartons up to 12.5 kg at speed.
Textile Loom Tensioner
Employs the 70 mm stroke to maintain precise fabric tension in damp textile mills, leveraging the stainless build to resist humid conditions.
Pallet Label Press
Mounts via the 90-degree U cover to press adhesive labels onto pallets, using fixed TPU bumpers to prevent harsh impact on the stroke end.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X70U the Right Cylinder?
When sizing this 70 mm stroke model, compare it against its neighbours: the Ø20 bore generates 157.0 N of push at 0.5 MPa, whereas the larger Ø32 provides 402.2 N. Choose this Ø25 unit when your application demands the 245.3 N tier. Remember that a plain cylinder drifts if air pressure drops or the valve centres; the TPU pads only decelerate the stroke end and act as neither a brake nor a lock. To suspend a load safely, fit an external rod lock or a pilot-operated check valve.
The U-style back cover dictates a 90-degree orientation, which helps route hoses cleanly in tight machinery. If your workflow requires position feedback, select the -S magnet variant to enable CMSG, DMSG or EMSG sensors, as this base configuration cannot support them. For high-speed cycles requiring adjustable air cushioning, consider the MIC series instead.
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 MI25X70U FAQ
This 25 mm bore cylinder features a 1/8" port and an M10x1.25 male rod thread. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum force of 50 kgf at 1.0 MPa.
No, this specific SKU lacks a magnet and cannot host CMSG, DMSG or EMSG switches. You must choose the -S variant for position sensing. Additionally, its fixed TPU bumpers only decelerate the stroke end; they do not function as an adjustable air cushion.
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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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