Airtac MI25~40 Stainless Steel Mini Cylinder MI40X10R
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X10R is a genuine double acting round-body mini air cylinder with a Ø40mm bore and 10mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke10 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- 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 MI40X10R
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty actuation in a compact footprint. The stainless-steel barrel and Ø16 mm rod shrug off mild corrosion, making it superior to painted alternatives in damp environments. With a short 10 mm stroke and an R axial-in rear cover, it fits neatly into tight machinery. The riveted construction keeps the body light while fixed TPU bumper pads absorb end-of-stroke impact. Plan for roughly 377 N of actual work at 0.5 MPa to ensure reliable operation.
This non-ISO-6432 Ø40 mm model uses a 1/4" port and an M12×1.25 male rod thread. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches. Operating pressure spans 0.15-1.0 MPa, with a speed range of 30-800 mm/s.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X10R Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X10R |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 10 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MI40X10R
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×10 | 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 MI40X10R Is Used
Heavy-Duty Short-Stroke Clamping
Secures thick steel plates in a welding jig using its 628.3 N push force within a tight 10 mm travel range.
Pallet Ejector
Thrusts loaded pallets off a roller line, utilising the robust stainless build to withstand industrial dust and washdown.
Press Pin Insertion
Drives solid pins into heavy housings, relying on the rigid riveted body to maintain alignment under high impact.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X10R the Right Cylinder?
As the largest bore in the MI family, this 40 mm option provides maximum thrust; if your application only requires 402.2 N of push at 0.5 MPa, stepping down to the Ø32 model saves space and air volume. The 10 mm stroke is ideal for short clamping or ejecting motions, though such a brief extension demands precise alignment to avoid side-loading the rod. The R axial-in rear cover dictates your plumbing direction, so verify your manifold layout. Remember that the TPU bumpers only decelerate the piston near the stroke end; they do not function as a brake. If the machinery loses air pressure, the rod will drift, so fit an external pilot check valve if you need to suspend a load safely.
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 MI40X10R FAQ
At 0.5 MPa it provides 628.3 N push and 527.8 N pull. At 0.7 MPa it yields 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa. The air port is 1/4" and the male rod thread is M12×1.25.
No, this specific SKU does not include a magnet, so CMSG, DMSG or EMSG switches cannot be used. You would need the -S variant for sensing. It features an R axial-in rear cover and fixed TPU bumper pads rather than an adjustable air cushion.
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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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