Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160CM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160CM 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 MI40X160CM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty automation tasks. The Ø40 bore operates on a 1/4" port and features a sturdy Ø16 piston rod with an M12x1.25 male thread. Its stainless-steel barrel and rod resist mild corrosion, making it highly reliable in damp or washdown environments compared to painted alternatives. Fixed TPU bumper pads absorb end-of-stroke impacts to protect your machinery.
For practical sizing, plan for a safe working load of about 377 N, which is roughly 60 percent of the rated push force. This translates to lifting a 32 kg part vertically with a 2:1 safety margin. The riveted CM round-end back cover keeps the overall footprint compact while providing versatile mounting orientation. Since this specific SKU lacks a magnet, it cannot accept CMSG, DMSG, or EMSG position switches without upgrading to an -S variant.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160CM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160CM |
|---|---|
| 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 MI40X160CM
| 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 MI40X160CM Is Used
Stamping Press Ejection
Uses the 628.3 N push force to knock heavy stamped metal parts out of a die on an automotive production line.
Package Diverting Arm
Pivots a heavy mechanical gate to sort dense industrial freight along a high-speed logistics conveyor.
Pallet Component Lift
Raises 32 kg machinery sub-assemblies between floor level and an upper assembly tier using the 160 mm stroke.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160CM the Right Cylinder?
When sizing this 40 mm bore actuator, compare your actual load against the 628.3 N push capability at 0.5 MPa. If your application requires less force, stepping down to the Ø32 bore provides 402.2 N of push, while this Ø40 represents the largest standard option in the MI family. The 160 mm stroke is well within the 500 mm maximum limit, keeping the assembly rigid. To manage side loads and prevent rod bending over this travel distance, ensure proper guide alignment.
Remember that the fixed TPU bumpers only decelerate the piston near the stroke end; they do not function as a brake. If air pressure drops or the valve is centered, the rod will drift, meaning this actuator cannot hold a vertical load in place. For suspended loads, you must integrate an external rod lock or a pilot-operated check valve. Furthermore, because this model has no internal magnet, position sensing is not possible out of the box.
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 MI40X160CM FAQ
This 40 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.
No, this specific SKU does not include an internal magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S magnet variant for position sensing. The unit features a stainless-steel riveted round body with a CM round-end cover and fixed TPU bumper pads for end-of-stroke deceleration.
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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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