Airtac MI25~40 Stainless Steel Mini Cylinder MI40X60SR
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X60SR is a genuine double acting round-body mini air cylinder with a Ø40mm bore and 60mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke60 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 MI40X60SR
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty automation tasks with a compact 60 mm stroke. The stainless-steel barrel and Ø16 mm piston rod shrug off mild corrosion and washdown environments, outlasting painted alternatives in damp facilities. Because this is a Ø40 bore, it is a non-ISO-6432 size, yet the riveted construction keeps the footprint tight while the R back cover provides an axial-in port orientation for neat plumbing.
Equipped with a built-in piston magnet (-S), the unit supports CMSG, DMSG, and EMSG switches for precise end-of-stroke detection. Plan for roughly 377 N of actual work at 0.5 MPa to maintain a safe margin, which translates to lifting about 32 kg vertically against gravity. The 1/4" air port feeds the chamber efficiently, while fixed TPU bumper pads absorb the impact at stroke extremes.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X60SR Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X60SR |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 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 MI40X60SR
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×60 | 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 MI40X60SR Is Used
Stamping Press Ejection
Uses the 628.3 N push force to knock heavy stamped metal parts out of a die, relying on the 60 mm stroke to clear the tooling quickly.
Pallet Diverter Gate
Pivots a heavy lane divider on a packaging conveyor, where the stainless build survives daily washdowns and the -S magnet confirms gate position.
Product Press Fixture
Pushes bearings into housings on an assembly line, safely applying about 377 N of working force while the R back cover keeps air lines tucked away.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X60SR the Right Cylinder?
As the largest bore in the MI family, the Ø40 leaves no larger standard size to step up to; if 628.3 N at 0.5 MPa is insufficient, you must switch to a different cylinder series entirely. Stepping down to a Ø32 bore drops the push force to 402.2 N, so only downsize if your payload is significantly lighter. The 60 mm stroke is well within the 500 mm maximum, keeping the rod short and highly resistant to bending under side loads. To mount this actuator, choose from LB foot, FA flange, SDB pivot, or TC trunnion hardware.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the directional valve is centered—the fixed TPU pads only soften the end-of-stroke impact and act purely as deceleration bumpers, never as a locking brake. If your application requires the load to freeze in place during an air failure, install an external rod lock or a pilot-operated check valve in the line.
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 MI40X60SR FAQ
At 0.5 MPa it provides 628.3 N push and 527.8 N pull. At 0.7 MPa it delivers 879.6 N push and 738.9 N pull, with a theoretical maximum of 128.1 kgf at 1.0 MPa. The air port is 1/4" and the male rod thread is M12x1.25.
The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. As a Ø40 bore, it is a non-ISO-6432 round-body mini cylinder. It uses fixed TPU bumper pads for deceleration, not an adjustable air cushion.
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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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