Airtac MI25~40 Stainless Steel Mini Cylinder MI40X175SCM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X175SCM is a genuine double acting round-body mini air cylinder with a Ø40mm bore and 175mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke175 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 MI40X175SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles heavy-duty actuation where smaller bores stall. The Ø40 mm barrel and Ø16 mm piston rod are built from stainless steel, shrugging off mild corrosion and washdown better than painted alternatives. A 1/4" port feeds the chamber, while fixed TPU bumper pads absorb the impact at stroke ends without offering adjustable cushioning.
Because the -S suffix equips the piston with a magnet, you can track position with CMSG, DMSG or EMSG switches. The CM round end back cover shapes the rear mounting profile. Plan for roughly 377 N of actual work at 0.5 MPa, which translates to lifting about 32 kg vertically with a safe 2:1 margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X175SCM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X175SCM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 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 MI40X175SCM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 MI40X175SCM Is Used
Stamping Press Ejection
Uses the 628.3 N push at 0.5 MPa to knock heavy stamped metal parts out of a die reliably on every cycle.
Pallet Diverting Arm
Swings a heavy lane-guidance gate on a packaging line, relying on the 175 mm stroke to shift full pallets smoothly.
Vertical Lift Gate
Raises a 30 kg security or washdown gate, staying safely within the 32 kg vertical lift capacity at 0.5 MPa.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X175SCM the Right Cylinder?
If 628.3 N at 0.5 MPa is too much, step down to the Ø32 bore (402.2 N push); since Ø40 is the largest in this series, moving higher requires a different body style. This 175 mm stroke is well within the 500 mm maximum, but long rods still demand careful alignment to avoid side-loading and bending. The CM round end suits compact rear mounting, and you can add LB foot or FA flange brackets as needed.
Remember that fixed TPU pads only soften the end-of-stroke impact; they do not lock the rod. If air pressure drops or the valve centres, the piston drifts, so fit an external rod lock or pilot check valve to hold a suspended 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 MI40X175SCM FAQ
At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. At 0.7 MPa the push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. Air is supplied via a 1/4" port, and the male rod thread is M12x1.25.
Yes to sensors, no to adjustable cushions. The -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG switches. For deceleration, it relies on fixed TPU bumper pads; if you need adjustable air cushioning for high speeds, look at the MIC variant.
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Covers non-human-caused product damage.
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