Airtac MIJ Adjustable Cylinder MIJ40X30-30
The AirTAC MIJ Adjustable Cylinder MIJ40X30-30 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 30mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke30 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 MIJ40X30-30
Dial in your forward end position on-site with the AirTAC MIJ40X30-30, a double-acting round-body mini cylinder featuring a 30 mm adjustable extend-stroke window. An external stop screw lets you shorten the forward stroke by up to 30 mm without swapping parts, while the retract stroke remains full. Built with a stainless-steel barrel and Ø16 mm piston rod, it handles mild corrosion and washdown environments. It uses a 1/4" port and an M12x1.25 male rod thread.
Fixed TPU bumper pads decelerate the stroke end, and because this SKU lacks a magnet, it cannot host CMSG, DMSG, or EMSG sensors.
Airtac MIJ Adjustable Cylinder MIJ40X30-30 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X30-30 |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 MIJ40X30-30
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -30 | 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 MIJ40X30-30 Is Used
Staged Product Diverters
Push heavy pallets off a main line with a 32 kg vertical lift capacity, adjusting the extend stop on-site to route different carton depths without changing cylinders.
Washdown Sorting Gates
Rely on the stainless-steel barrel and rod for mildly corrosive washdown zones, using the settable extend end to meter heavy product flows accurately.
Is the Airtac MIJ Adjustable Cylinder MIJ40X30-30 the Right Cylinder?
If you need more power than the 628.3 N offered here, there is no larger bore in the MIJ line. The 30 mm external adjuster is ideal for taking up mechanical tolerances during setup or covering multiple stop positions with one part number. Note that the stop screw sets the end position but does not lock the rod mid-stroke; the piston will drift on air loss, so add an external rod lock or pilot check valve for held loads. Mounting options include LB foot, FA flange, and TC trunnion (SDB pivot-block is not available), and you must select the -S magnet variant to use position sensors.
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 MIJ40X30-30 FAQ
It features a 1/4" air port and an M12x1.25 male rod thread.
An external stop screw shortens the extend stroke by up to 30 mm on-site, letting you fine-tune the forward end position while the retract stroke remains full. This SKU has no magnet and cannot take CMSG, DMSG, or EMSG sensors; you must choose the -S variant for position sensing.
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.
Request a Quote for Airtac MIJ Adjustable Cylinder MIJ40X30-30
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