Airtac MIJ Adjustable Cylinder MIJ40X250-75S
The AirTAC MIJ Adjustable Cylinder MIJ40X250-75S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 250mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke250 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 MIJ40X250-75S
Dial in a precise forward end position on-site with the AirTAC MIJ40X250-75S, a round-body stainless mini cylinder featuring a 75 mm extend-stroke adjustment window. An external stop screw lets you shorten the forward stroke from its 250 mm nominal maximum down to 175 mm, absorbing setup tolerances without changing the cylinder. Retract travel remains full length.
The stainless-steel barrel and Ø16 mm piston rod resist mild corrosion and washdown environments. This Ø40 bore size falls outside the ISO 6432 mounting standard, operating as a larger round-body unit with a 1/4" port and M12x1.25 male rod thread. Because this SKU includes the -S magnet option, it supports CMSG, DMSG, and EMSG position switches. Fixed TPU bumper pads decelerate the stroke ends, while the stop screw sets the end position but does not lock the piston mid-stroke.
Airtac MIJ Adjustable Cylinder MIJ40X250-75S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X250-75S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 MIJ40X250-75S
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -75 | 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 MIJ40X250-75S Is Used
Staged Diverting
Set precise extend stops up to 75 mm short of full stroke to push 30 kg cartons onto different downstream lanes without swapping actuators.
Adjustable Pallet Stops
Fine-tune the 250 mm extend length to act as a physical end stop for varying pallet widths, relying on the stainless build for damp settings.
Is the Airtac MIJ Adjustable Cylinder MIJ40X250-75S the Right Cylinder?
The 75 mm adjustment window is ideal for changeover jobs where one part number must cover several staged feed distances.
Mounting options include LB foot, FA flange, and TC trunnion, but the SDB pivot block is not available on this adjustable variant. Remember that a standard cylinder drifts on air loss; the stop screw and bumpers only manage the end position and deceleration, so add an external rod lock or pilot check valve if you need to hold a suspended load.
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 MIJ40X250-75S FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 75 mm, letting you set the forward end position between 175 mm and 250 mm; retract remains full. The -S option adds a piston magnet for CMSG/DMSG/EMSG sensors. The 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.
Request a Quote for Airtac MIJ Adjustable Cylinder MIJ40X250-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.