Airtac MIJ Adjustable Cylinder MIJ40X75-40S
The AirTAC MIJ Adjustable Cylinder MIJ40X75-40S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke75 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 MIJ40X75-40S
Dial in a precise forward end position on the fly with the AirTAC MIJ40X75-40S, a round-body stainless steel mini cylinder featuring a 40 mm external adjustment window. By turning the stop screw, you shorten the extend stroke from its 75 mm nominal length down to 35 mm, allowing one part number to cover multiple stop distances without changing the hardware. Retract remains at full length, and the screw simply sets the endpoint rather than acting as a mid-stroke lock.
The stainless barrel and rod resist mild corrosion and washdown environments. Because this is a -S variant, it includes a piston magnet for CMSG, DMSG, or EMSG sensors, and it uses a 1/4" port with an M12x1.25 male rod thread.
Airtac MIJ Adjustable Cylinder MIJ40X75-40S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X75-40S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MIJ40X75-40S
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MIJ40X75-40S Is Used
Heavy Part Ejector
Pushes finished metal castings out of a machining center, using the 40 mm stop screw to dial the exact ejection distance for different fixture sizes without swapping actuators.
Pallet Diverter
Diverts loaded pallets onto a secondary packing line, relying on the stainless build for washdown resistance and the adjustable extend end to set the precise transfer push distance.
Is the Airtac MIJ Adjustable Cylinder MIJ40X75-40S the Right Cylinder?
The 40 mm adjustment window is ideal for taking up mechanical tolerances during setup or staging feeds across changeover jobs. Remember that the fixed TPU bumper pads only decelerate the piston near the stroke end; the cylinder will drift and cannot hold a load on air loss, so fit an external rod lock or pilot check valve if you need position holding. You can mount this unit using LB foot, FA flange, or TC trunnion brackets, plus CA, U, R, or CM back covers, but the SDB pivot block is not offered 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 MIJ40X75-40S FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 40 mm on site, giving a usable forward range of 35-75 mm while retract stays full. The -S suffix means a piston magnet is built-in for CMSG, DMSG, or EMSG sensors, and the stainless construction handles mild corrosion.
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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