Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175U is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 175mm 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
- Stroke175 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 MI25X175U
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding actuation. The 25 mm bore and 175 mm stroke use a 1/8" port and an M10x1.25 male rod thread. Its riveted stainless barrel and rod resist mild corrosion, outperforming painted alternatives in damp or washdown settings. Fixed TPU bumper pads absorb stroke-end impact without 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. The U-style rear cover provides a 90-degree mounting orientation for tight spaces. Because this SKU lacks a magnet, it cannot host CMSG, DMSG, or EMSG sensors without upgrading to the -S variant.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 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 MI25X175U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×175 | 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 MI25X175U Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245.3 N thrust to push heavy cartons onto secondary tracks at 90 degrees via the U cover.
Pallet Stopping Arm
Deploys a physical stop block for incoming pallets, safely halting loads up to 12.5 kg on a gravity roller conveyor before downstream processing.
Press Pin Insertion
Drives a mechanical pin into an aluminum housing on an assembly fixture, relying on the fixed TPU pads to soften the 175 mm stroke endpoint.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X175U the Right Cylinder?
Sizing hinges on your force requirements: the smaller Ø20 bore yields 157.0 N push, while the larger Ø32 provides 402.2 N at 0.5 MPa. This Ø25 model sits perfectly in between. Note that a standard cylinder drifts if air pressure drops or the valve centers, as the TPU pads only decelerate the end of travel rather than locking the rod; add an external pilot check valve for suspended loads.
The 175 mm stroke is well within the 500 mm maximum, though side loads on the extended rod should be minimized to prevent bending. It accepts LB foot, FA flange, and TC trunnion brackets. For higher cycle speeds requiring adjustable air cushioning, consider the MIC variant.
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 MI25X175U FAQ
At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port is 1/8".
No, this specific SKU lacks an internal piston magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must select the -S magnet variant for sensor compatibility. The unit also conforms to ISO 6432 mounting dimensions for Ø25 bores.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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