Airtac MIJ Adjustable Cylinder MIJ40X50-30S
The AirTAC MIJ Adjustable Cylinder MIJ40X50-30S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 50mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke50 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 MIJ40X50-30S
Dial in your forward end position on-site with the AirTAC MIJ40X50-30S, a round-body stainless mini cylinder featuring a 30mm adjustable extend window. An external stop screw lets you trim the forward stroke from 20 to 50mm without swapping parts, while the retract stroke remains full. The stainless-steel barrel and Ø16mm piston rod supply reliable mild corrosion and washdown resistance.
The 1/4" air port feeds the chamber, and fixed TPU bumper pads decelerate the piston at the stroke ends. Because this is a -S model, the built-in piston magnet supports CMSG, DMSG, and EMSG sensors.
Airtac MIJ Adjustable Cylinder MIJ40X50-30S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X50-30S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MIJ40X50-30S
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MIJ40X50-30S Is Used
Staged Diverting
Handles large product loads on a washdown line, using the stainless build and on-site extend adjustment to alter the divert stroke for carton changeovers.
Pallet Stopper Gates
Securely halts pallets weighing up to 32kg in vertical lift setups, dialing the stop screw to accommodate varying pallet footprints.
Is the Airtac MIJ Adjustable Cylinder MIJ40X50-30S the Right Cylinder?
There is no larger standard MIJ bore, so for loads exceeding this capacity, consider an external rod lock or pilot-operated check valve. The MIJ40X50-30S does not hold position on air loss, as the piston will drift and the stop screw acts only as an end-position setter, not a mid-stroke brake.
The external adjuster is ideal for absorbing mechanical tolerances during setup or covering multiple stop distances with one part number. Mounting options include LB foot, FA flange, and TC trunnion, along with CA, U, R, or CM back covers. Note that the SDB pivot block is not available on this adjustable variant. Ensure you specify the -S magnet if you need electronic or reed switch sensing.
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 MIJ40X50-30S FAQ
This 40mm bore cylinder uses a 1/4" air port and a male M12x1.25 rod thread. The theoretical maximum force is 128.1kgf at 1.0MPa.
The external stop screw shortens the extend stroke by up to 30mm, allowing you to set the forward end position between 20 and 50mm; the retract stroke remains full. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG sensors. Fixed TPU bumper pads decelerate the stroke ends.
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 MIJ40X50-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.