Airtac MIJ Adjustable Cylinder MIJ40X225-40S
The AirTAC MIJ Adjustable Cylinder MIJ40X225-40S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 225mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke225 mm
- Port size1/4"
- Acting typeDouble acting, double rod, adjustable stroke
- 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 MIJ Adjustable Cylinder MIJ40X225-40S
Dial in your forward end position on-site with the AirTAC MIJ40X225-40S, a round-body stainless mini cylinder featuring a 40 mm adjustable extend stroke. An external stop screw lets you shorten the forward travel from the 225 mm nominal maximum down to 185 mm, absorbing setup tolerances without changing the cylinder itself. Retract travel remains full length. This double-acting actuator delivers substantial force, pushing with 628.3 N and pulling with 527.8 N at 0.5 MPa.
Built with a riveted stainless-steel barrel and a Ø16 mm piston rod, it resists mild corrosion and washdown environments. The 1/4" port feeds the bore efficiently, while fixed TPU bumper pads decelerate the stroke ends. Because this SKU includes the -S magnet, it is ready for CMSG, DMSG, or EMSG position switches.
Airtac MIJ Adjustable Cylinder MIJ40X225-40S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X225-40S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac MIJ Adjustable Cylinder MIJ40X225-40S
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -40 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -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 (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MIJ Adjustable Cylinder MIJ40X225-40S Is Used
Staged Diverter Pusher
Handles heavy cartons on a line by using the 40 mm adjuster to tune the push distance for varying box widths without repositioning hardware.
Variable Depth Tamping
Compresses dense product into cases; operators dial the extend stop down from 225 mm to achieve consistent fill levels across different container sizes.
Is the Airtac MIJ Adjustable Cylinder MIJ40X225-40S the Right Cylinder?
When sizing this 40 mm bore, compare it against the adjacent MIJ32 option.
The 40 mm extend adjuster is ideal for changeover jobs where multiple parts require slightly different forward stops. Remember that the stop screw sets the end position but acts as no mid-stroke lock; the piston will drift if air pressure is lost, so fit an external rod lock or pilot check valve for held loads. Mount via LB foot, FA flange, or TC trunnion (SDB pivot-block is not available on this adjustable variant).
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 MIJ Adjustable Cylinder MIJ40X225-40S FAQ
This 40 mm bore cylinder uses a 1/4" port. 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.
The external stop screw shortens the extend stroke by up to 40 mm on-site, setting the forward end position between 185 mm and 225 mm; the retract stroke remains full. The -S suffix means a piston magnet is built-in, allowing you to mount CMSG, DMSG, or EMSG sensors for position detection.
Authorized Export Seller
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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