Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SR
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SR is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 50mm 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
- Stroke50 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 MI25X50SR
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 mm bore uses a 1/8" port and an M10x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments. The riveted construction keeps the body compact, while fixed TPU bumper pads absorb stroke-end impact.
Because the -S suffix denotes a built-in piston magnet, this model is ready for CMSG, DMSG, or EMSG position switches. For real work at 0.5 MPa, plan for roughly 147 N of usable load. In vertical lifting, that translates to safely raising about 12.5 kg with a 2:1 margin. The R back cover features an axial-in port orientation, simplifying plumbing in tight spaces.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SR Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SR |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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 MI25X50SR
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 MI25X50SR Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245.3 N thrust to push heavy cartons onto a secondary belt at speed.
Textile Loom Tensioner
Maintains tension on yarn guides in humid textile facilities where the stainless steel rod prevents mild corrosion.
Pallet Stopper Arm
Deploys a 50 mm stroke stop block to halt incoming pallets, relying on the fixed TPU pads to soften the impact.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X50SR the Right Cylinder?
When sizing this bore, stepping down to a Ø20 mm unit drops the 0.5 MPa push force to 157.0 N, whereas moving up to a Ø32 mm bore increases it to 402.2 N. If your application loses air or the valve centres, this cylinder will drift and cannot hold position; the TPU pads only decelerate the end of stroke. To lock a load, add an external rod lock or a pilot-operated check valve. The Ø25 mm dimensions conform to the ISO 6432 mounting interface, so it drops directly into standard mini-cylinder brackets and clevises. You can also utilise LB foot, FA flange, SDB pivot, or 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 MI25X50SR FAQ
At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it yields 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa. This Ø25 mm bore uses a 1/8" air port.
Yes, the -S magnet allows CMSG, DMSG, or EMSG switches. However, it does not hold position if air is lost; the piston drifts. For load holding, install an external rod lock or pilot check valve.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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