Airtac MIJ Adjustable Cylinder MIJ40X15-20
The AirTAC MIJ Adjustable Cylinder MIJ40X15-20 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 15mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke15 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 MIJ40X15-20
Dial in your forward end position on-site with the AirTAC MIJ40X15-20, a round-body stainless steel mini cylinder built for double-acting operation. An external stop screw lets you shorten the extend stroke by up to 20 mm, allowing one part number to cover several forward stops without swapping hardware. Retract travel remains at the full 15 mm. Because this is a 40 mm bore, it is a non-ISO-6432 size, delivering substantial push force for a mini format.
The stainless barrel and riveted rod construction resist mild corrosion and washdown environments. Air connects via a 1/4" port, and internal fixed TPU bumper pads decelerate the piston at the stroke ends. Note that this specific SKU lacks a magnet and cannot host position sensors.
Airtac MIJ Adjustable Cylinder MIJ40X15-20 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X15-20 |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 MIJ40X15-20
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -20 | 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 MIJ40X15-20 Is Used
Pallet Changeover
Fine-tune the extend end position for multi-size pallet handling without changing cylinders, relying on the 1/4" port and bumper pads to manage the 15 mm travel efficiently.
Is the Airtac MIJ Adjustable Cylinder MIJ40X15-20 the Right Cylinder?
Since this is the largest standard round-body mini size, there is no larger MIJ option. The 20 mm external adjuster is ideal for taking up mechanical tolerances or staging feeds during setup. If your application requires the load to be held vertically on air loss, note that this cylinder will drift; the stop screw sets the end position but is not a mid-stroke lock, so you must add an external rod lock or pilot check valve. Mounting options include LB foot, FA flange, and TC trunnion (SDB pivot block is not available), and you must select the -S magnet variant if you need CMSG, DMSG, or EMSG 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 MIJ40X15-20 FAQ
This 40 mm bore cylinder uses a 1/4" port and a 16 mm rod.
An external stop screw shortens the extend stroke by up to 20 mm on-site, while retract remains full. This SKU does not have a magnet, so it cannot take CMSG/DMSG/EMSG sensors; you need the -S variant for sensing. The stop screw is not a mid-stroke lock.
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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