Airtac MI25~40 Stainless Steel Mini Cylinder MI40X200CM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X200CM is a genuine double acting round-body mini air cylinder with a Ø40mm bore and 200mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke200 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 MI40X200CM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding actuation tasks. The Ø40 bore operates with a 1/4" port and a 200 mm stroke, utilizing a CM round end rear cover. Because this is a non-ISO-6432 size, it functions purely as a robust round-body actuator rather than a standard mini interface.
The stainless-steel barrel and rod resist mild corrosion and washdown, outperforming painted alternatives in damp environments. Fixed TPU bumper pads absorb stroke-end impacts to protect the mechanism. Since this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches. For practical sizing, plan for a safe working load of about 377 N, which comfortably lifts a 32 kg part vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X200CM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X200CM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 MI40X200CM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 MI40X200CM Is Used
Heavy Carton Diversion
Pushes heavy corrugated cartons across a packaging line using the full 628.3 N push force available at 0.5 MPa.
Pallet Component Indexing
Shifts dense metal sub-assemblies into a staging area, leveraging the 32 kg safe vertical lift equivalence.
Stamping Ejector
Ejects formed aluminium parts from a press bed, relying on the fixed TPU bumpers to absorb the end-of-stroke impact.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X200CM the Right Cylinder?
Sizing this 40 mm bore against its neighbours is straightforward: it provides 628.3 N push at 0.5 MPa, sitting directly above the Ø32 bore that yields 402.2 N. As the largest available MI bore, it represents the top end of the range for heavy pushing. If your application requires position feedback, you must select the -S magnet variant to enable sensor mounting.
Keep in mind that a plain double-acting cylinder drifts when air is lost or the valve is centered, as the TPU bumpers only decelerate the stroke end without acting as a brake. To suspend a load safely, install an external rod lock or a pilot-operated check valve. With a 200 mm stroke, ensure adequate side-load support to prevent rod bending and premature seal wear.
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 MI40X200CM FAQ
This 40 mm bore cylinder features a 1/4" port and a 200 mm stroke. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa.
No, this specific SKU lacks the internal magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must order the -S variant for position sensing. The unit uses fixed TPU bumper pads for deceleration rather than an adjustable air cushion.
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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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