Airtac MI25~40 Stainless Steel Mini Cylinder MI40X600U
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI40X600U is a genuine double acting round-body mini air cylinder with a Ø40mm bore and 600mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke600 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 MI40X600U
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles substantial work. The 40 mm bore pairs with a 600 mm stroke, which exceeds the 500 mm standard maximum, making this specific SKU a made-to-order item. Its stainless-steel barrel and piston rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. The U-type back cover provides a 90-degree port orientation for tight machinery layouts.
Because the 600 mm stroke creates a long lever arm, keeping side loads minimal prevents rod bending. Plan for roughly 377 N of actual work at 0.5 MPa to maintain smooth operation. This translates to lifting about 32 kg vertically with a safe 2:1 margin. Fixed TPU bumper pads decelerate the piston at stroke ends, though they do not act as an adjustable air cushion.
Airtac MI25~40 Stainless Steel Mini Cylinder MI40X600U Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI40X600U |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 600 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 MI40X600U
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×600 | 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 MI40X600U Is Used
Heavy Package Diversion
Pushes heavy cartons across transfer lines using the 628.3 N push force available at 0.5 MPa.
Pallet Component Staging
The 600 mm stroke extends fully to index large pallet components into the staging area.
Washdown Gate Actuation
Stainless construction survives damp food processing zones while operating automated washdown gates.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI40X600U the Right Cylinder?
When sizing this 40 mm bore, stepping down to a 32 mm bore drops the 0.5 MPa push force to 402.2 N, while no larger MI series option exists above 40 mm. The 1/4" port matches the bore's air volume requirements. For the extended 600 mm travel, ensure your mounting configuration—such as LB foot or TC trunnion brackets—supports the rod fully to avoid deflection.
Without external valves, this plain cylinder cannot hold a load if air pressure drops; the piston will drift. The fixed bumpers only soften the end-of-stroke impact, so add a pilot-operated check valve or external rod lock if you need vertical position holding. Note that this SKU lacks the -S magnet, meaning it cannot accept CMSG, DMSG, or EMSG magnetic switches.
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 MI40X600U FAQ
This 40 mm bore cylinder features a 1/4" port. 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.
No, this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for position sensing.
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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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Most inquiries answered within 7-8 hours.
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