Airtac MI25~40 Stainless Steel Mini Cylinder MI25X80U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X80U is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 80mm 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
- Stroke80 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 MI25X80U
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 Ø25 bore conforms to ISO 6432 mounting dimensions, ensuring it drops directly into standard mini-cylinder brackets and clevises. Its riveted stainless barrel and rod resist mild corrosion, making it superior to painted alternatives in damp environments. Equipped with a 90-degree U back cover, it offers flexible port and pivot orientation for tight spaces.
The fixed TPU bumper pads absorb impact at the stroke ends, though they do not provide adjustable cushioning. Plan for a safe working load of roughly 147 N, which is about 60 percent of the 0.5 MPa rating. Alternatively, it can vertically lift around 12.5 kg with a 2:1 safety margin. This SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG position switches without upgrading to the -S variant.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X80U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X80U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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 MI25X80U
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×80 | 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 MI25X80U Is Used
Package Diverting Gate
Actuates a routing flap on a packaging conveyor, using the 245.3 N push force to redirect boxes weighing up to 12.5 kg reliably.
Textile Loom Tensioner
Maintains consistent fabric tension in a humid textile facility, leveraging the stainless-steel barrel to resist mild corrosion.
Pallet Stacking Stopper
Extends 80 mm to halt incoming pallets at a stacking station, relying on the fixed TPU bumpers to soften the end-of-stroke impact.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X80U the Right Cylinder?
When sizing this 80 mm stroke model, compare it against its neighbours: the Ø20 bore provides 157.0 N of push at 0.5 MPa, while the larger Ø32 offers 402.2 N. If your application requires position feedback, select the -S magnet version to enable sensing. The U-style rear cover allows 90-degree mounting, which helps manage spatial constraints.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered. The TPU bumpers only decelerate the piston near the end of travel and will not function as a brake. To suspend a load safely during an air failure, integrate an external rod lock or a pilot-operated check valve into your circuit.
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 MI25X80U FAQ
This Ø25 mm bore cylinder features a 1/8 inch air port and an M10x1.25 male rod 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 a magnet, so it cannot support CMSG, DMSG, or EMSG magnetic switches. You must select the -S variant (MI25X80U-S) if your application requires position sensing. The unit does conform to ISO 6432 mounting dimensions for standard bracket compatibility.
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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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