Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450R
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450R is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 450mm 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
- Stroke450 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 MI25X450R
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work within a compact footprint. The Ø25 mm bore uses a 1/8 inch port and a 10 mm piston rod with an M10x1.25 male thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted-steel or aluminium minis in damp, food, or outdoor environments. The riveted construction keeps the unit light, while fixed TPU bumper pads absorb the impact at stroke end.
For practical sizing, plan for about 147 N of real work at 0.5 MPa rather than the absolute maximum rating. This translates to lifting roughly 12.5 kg vertically with a safe 2:1 margin, letting you match the cylinder to actual part weights. The rear R cover features an axial-in port orientation for neat tubing routing. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450R Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 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 MI25X450R
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×450 | 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 MI25X450R Is Used
Package Diverting Arm
Swings a sorting gate on a packaging line, using the 245.3 N thrust to push parcels firmly onto secondary chutes.
Pneumatic Pressing Station
Applies downward clamping pressure for assembling small housings, relying on the 450 mm stroke to clear tall parts during loading.
Tote Lift and Transfer
Raises empty storage totes from a lower conveyor tier, safely lifting loads around 12.5 kg before sliding them onto a roller bed.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450R the Right Cylinder?
When sizing this 25 mm bore, the adjacent 20 mm option yields 157.0 N push at 0.5 MPa, whereas stepping up to the 32 mm bore provides 402.2 N. The 450 mm stroke sits well within the 500 mm standard limit for this bore, though at this extended length you should carefully manage side loading to prevent rod bending and premature seal wear. The ISO 6432 mounting interface means it drops directly into standard mini-cylinder brackets, foot mounts (LB), flanges (FA), or TC trunnions.
Remember that fixed TPU pads only decelerate the piston near the end of travel; they do not act as a lock. If air pressure drops or the valve is centred, the rod will drift and drop the load. To maintain position vertically, incorporate an external pilot-operated check valve or a dedicated rod lock.
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 MI25X450R FAQ
This 25 mm bore cylinder features a 1/8 inch port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, and 343.4 N push / 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
This specific SKU does not have a magnet, so it cannot accept CMSG, DMSG, or EMSG switches; you need the -S variant for sensing. The R back cover provides an axial-in port orientation for straight rear tubing.
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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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