Airtac MIJ Adjustable Cylinder MIJ40X400-100
The AirTAC MIJ Adjustable Cylinder MIJ40X400-100 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 400mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke400 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 MIJ40X400-100
Trimming the forward end position by up to 100 mm on-site, this round-body mini cylinder eliminates the need to swap hardware when tuning a 400 mm forward movement. The external stop screw sets the extend endpoint anywhere in a 300 to 400 mm window, while retract remains a full return. It is a double-acting stainless steel unit built for mild corrosion and washdown resistance.
The 1/4" port and M12x1.25 male rod thread handle the necessary airflow and mechanical coupling. This SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors without switching to the -S variant.
Airtac MIJ Adjustable Cylinder MIJ40X400-100 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X400-100 |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 MIJ40X400-100
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -100 | 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 MIJ40X400-100 Is Used
Heavy Fixture Positioning
Securely pushes a 32 kg machining fixture into place, using the 100 mm extend adjustment to dial in the exact clamping distance without re-engineering the cell.
Staged Material Ejection
Ejects dense components from a washdown station, relying on the stainless build and a trimmed 350 mm extend stroke to drop parts accurately into a tote.
Is the Airtac MIJ Adjustable Cylinder MIJ40X400-100 the Right Cylinder?
The 100 mm adjustment window is highly useful for taking up mechanical tolerances during setup or covering multiple intermediate stops with a single part number.
Because this is a non-ISO-6432 round-body cylinder, mounting relies on LB foot, FA flange or TC trunnion brackets, as the SDB pivot block is not offered for this adjustable variant. The stop screw only trims the extend endpoint and does not function as a mid-stroke lock; the piston will drift on air loss, so add an external rod lock or pilot check valve for suspended loads.
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 MIJ40X400-100 FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 100 mm on-site, allowing a usable forward range of 300 to 400 mm; retract remains a full stroke. This specific SKU has no magnet and cannot accept CMSG, DMSG or EMSG sensors, but the stainless steel construction provides mild corrosion resistance.
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 MIJ40X400-100
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