Airtac MI25~40 Stainless Steel Mini Cylinder MI25X110U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X110U is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 110mm 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
- Stroke110 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X110U
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding linear motion tasks. The Ø25 mm bore operates on a 1/8" port, and the 110 mm stroke falls well within the 500 mm standard limit. Its riveted stainless barrel and rod naturally shrug off mild corrosion, giving it a real edge over painted alternatives in damp production areas. Built to ISO 6432 mounting dimensions, it drops directly into standard mini-cylinder brackets and clevises for easy design integration.
Fixed TPU bumper pads absorb the impact at stroke ends, though they decelerate rather than provide adjustable cushioning. Plan for roughly 147 N of actual work at 0.5 MPa to maintain a safe margin, which translates to lifting about 12.5 kg vertically. This specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG or EMSG reed switches. The U suffix designates a 90-degree rear cover, orienting the supply port neatly to the side for tight machinery layouts.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X110U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X110U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 110 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 MI25X110U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×110 | 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 MI25X110U Is Used
Package Diverting Gate
Actuates a routing flap on a packaging conveyor, using the 245.3 N push force to deflect moderate-weight cartons onto secondary tracks at speed.
Textile Loom Tensioner
Adjusts the position of a yarn guide bar in a humid textile facility, relying on the stainless steel construction to prevent mild corrosion from ambient moisture.
Pallet Stacking Stopper
Extends 110 mm to physically halt empty pallets on a gravity roller conveyor, utilizing the 90-degree U cover to keep the 1/8" air line tucked away from the flow path.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X110U the Right Cylinder?
When sizing this actuator, compare its 245.3 N push force at 0.5 MPa against the neighbouring bores: a Ø20 generates 157.0 N, while a Ø32 steps up significantly to 402.2 N. If your application requires position feedback, you must select the -S magnet version, as this base configuration cannot accept a sensor. The 110 mm stroke is highly manageable, but always ensure the load is guided to prevent rod side-loading and premature seal wear.
Remember that venting the air supply or centering the directional valve will cause the piston to drift, as the TPU bumpers only soften the end-of-stroke impact and act as neither a brake nor a lock. To suspend a load safely during an emergency stop or air loss, fit an external pilot-operated check valve or a dedicated rod lock. The 90-degree U back cover provides flexible plumbing, complementing available LB foot, FA flange and TC trunnion mounts.
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 MI25X110U FAQ
This Ø25 mm bore cylinder features a 1/8" port and a Ø10 mm rod with an M10x1.25 male thread. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, increasing to 343.4 N push and 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet option, meaning it cannot accept CMSG, DMSG or EMSG switches. You would need to specify the MI25X110U-S variant to enable magnetic sensing. The unit conforms to ISO 6432 mounting dimensions and uses fixed TPU bumper pads rather than an adjustable air cushion.
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