Airtac MI25~40 Stainless Steel Mini Cylinder MI40X130SCM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X130SCM is a genuine double acting round-body mini air cylinder with a Ø40mm bore and 130mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke130 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 MI40X130SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty automation tasks that smaller bores cannot. The stainless-steel barrel and Ø16 mm piston rod shrug off mild corrosion, making it far superior to painted steel in damp or washdown environments. A 1/4" port feeds the chamber, while fixed TPU bumper pads absorb the impact at stroke ends to protect your machinery.
Because the raw 0.5 MPa extension rating is high, plan for a safe working load of roughly 377 N to account for friction and real-world dynamics. Vertically, this translates to lifting about 32 kg with a 2:1 safety margin, letting you match the actuator to actual part weights. The built-in magnet enables CMSG, DMSG, and EMSG position sensing, and the CM round end back cover provides a clean, compact rear profile for flexible mounting.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X130SCM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X130SCM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 130 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 MI40X130SCM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×130 | 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 MI40X130SCM Is Used
Stamping Press Ejection
Pushes heavy metal blanks out of a stamping die using 628.3 N of force, where the stainless construction resists cutting fluid splash.
Pallet Diverting Arm
Actuates a heavy routing gate on a packaging line, safely moving loads within its 377 N safe working capacity before retracting 130 mm.
Vertical Carton Lift
Raises 32 kg cartons between conveyor tiers, relying on the CM round end cover for a compact rear pivot mount during vertical lifts.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X130SCM the Right Cylinder?
As the largest bore in the series, there is no larger standard MI to step up to if 628.3 N at 0.5 MPa proves insufficient; you would need to explore alternative series entirely. Stepping down, the Ø32 bore provides 402.2 N of push force, serving as the closest alternative for lighter payloads. Remember 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 rather than locking the rod. To suspend a load safely, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MI40X130SCM FAQ
This Ø40 mm bore cylinder features a 1/4" air port and an M12x1.25 male rod thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
Yes, the included -S magnet allows direct mounting of CMSG, DMSG, or EMSG reed and electronic switches. For end-of-stroke protection, it uses fixed TPU bumper pads that decelerate the piston; these are not adjustable air cushions. If you need variable cushioning, consider the MIC variant.
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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.
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Most inquiries answered within 7-8 hours.
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