Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SU 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 MI40X160SU
Delivering serious muscle for a compact frame, this double-acting round-body mini cylinder generates 628.3 N of push force at 0.5 MPa. The stainless-steel barrel and Ø16 rod shrug off mild corrosion, making it superior to painted alternatives in damp washdown zones. Riveted construction keeps the unit light, while fixed TPU bumper pads absorb stroke-end impact.
Air enters via a 1/4 port to drive the 160 mm stroke, and the built-in magnet (-S) supports CMSG, DMSG, or EMSG switches for position tracking. In practical terms, you can plan for a safe working load of roughly 377 N, which means it lifts about 32 kg vertically with a 2:1 safety margin. The U back cover provides a 90-degree port orientation to simplify plumbing in tight machine cells.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SU |
|---|---|
| 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 MI40X160SU
| 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 MI40X160SU Is Used
Package Diverting Gate
Actuates heavy sorting gates on logistics conveyors, using the 628.3 N thrust to deflect dense parcels without hesitation.
Woodworking Press
Holds plywood panels steady during routing operations, where the stainless build resists airborne moisture and dust.
Pallet Stopper Arm
Deploys a 160 mm stroke to halt incoming pallets at packaging stations, relying on fixed TPU pads to soften the impact.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X160SU the Right Cylinder?
When sizing this 40 mm bore, verify your actual load against the 628.3 N push rating at 0.5 MPa. If you need less force, stepping down to a Ø32 bore yields 402.2 N; since Ø40 is the largest available MI size, moving up requires a different cylinder family. The 160 mm stroke is well within the 500 mm maximum, but maintain proper guiding to prevent rod bending under lateral stress.
Remember that venting or centering the valve causes the piston to drift, as the TPU bumpers only decelerate the end of travel without locking the rod. To suspend a load safely, install an external rod lock or a pilot-operated check valve. The integrated magnet allows seamless CMSG/DMSG/EMSG sensor mounting, and you can utilize LB foot, FA flange, or TC trunnion hardware to secure the body.
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 MI40X160SU FAQ
This 40 mm bore cylinder uses a 1/4 inch port. 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, venting the air causes the piston to drift because the fixed TPU bumper pads only decelerate impact, they do not lock the rod; use a pilot check valve for holding. The included -S magnet allows direct mounting of CMSG, DMSG, or EMSG switches for position detection.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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