Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SCM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SCM is a genuine double acting round-body mini air cylinder with a Ø40mm bore and 160mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke160 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 MI40X160SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding actuation. The Ø40 bore operates on a 1/4" port with a 16 mm rod, and its riveted stainless construction resists mild corrosion in damp or washdown environments better than painted alternatives. Equipped with a built-in magnet (-S) and a CM round rear cover, it supports CMSG, DMSG and EMSG position sensing.
For practical sizing, plan for roughly 377 N of usable work at 0.5 MPa, which translates to lifting about 32 kg vertically with a 2:1 safety margin. Fixed TPU bumper pads absorb the impact at the 160 mm stroke ends, operating reliably between -20 and +70 C at speeds of 30-800 mm/s.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SCM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SCM |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 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 MI40X160SCM
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×160 | 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 MI40X160SCM Is Used
Package Diverting
Pushes heavy cartons off a main conveyor line using the 628.3 N thrust available at 0.5 MPa.
Pallet Handling
Actuates a mechanical stop gate for wooden pallets, benefiting from the stainless build in humid warehouses.
Stamping Ejection
Ejects formed metal parts from a press die, relying on the fixed TPU pads to soften the 160 mm return impact.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SCM the Right Cylinder?
When sizing this 628.3 N unit, dropping down to a Ø32 bore yields 402.2 N of push at 0.5 MPa, while no larger standard MI bore exists for higher demands. The CM round end cover provides a compact rear profile for tight installations. Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG or EMSG electronic switches for end-of-stroke confirmation.
Remember that venting the air supply causes the piston to drift, as the TPU bumpers only decelerate the stroke end rather than locking the rod. To suspend a load safely during an air loss event, integrate an external pilot-operated check valve or a dedicated rod lock. Furthermore, on this 160 mm stroke, ensure front and rear mountings are perfectly aligned to prevent rod bending under side loads.
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 MI40X160SCM FAQ
This Ø40 mm cylinder uses a 1/4" port and a 16 mm rod. 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.
Yes, the -S suffix means a magnet is built in for CMSG, DMSG and EMSG switches. However, the cylinder does not hold position if air is lost; the piston drifts. You must add an external rod lock or pilot check valve for load holding.
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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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