Airtac MIJ Adjustable Cylinder MIJ40X350-30
The AirTAC MIJ Adjustable Cylinder MIJ40X350-30 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 350mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke350 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 MIJ40X350-30
Dialing in a precise forward end position on a heavy fixture is effortless with this stainless round-body mini cylinder. As a double-acting actuator, the MIJ40X350-30 uses an external stop screw to shorten the extend stroke by up to 30 mm on site, giving you a usable forward range of 320 to 350 mm without swapping parts.
The stainless steel barrel and Ø16 mm piston rod shrug off mild corrosion and washdown environments, while fixed TPU bumper pads absorb the impact at the stroke ends. Because this is a non-magnet SKU, it cannot host CMSG, DMSG, or EMSG sensors; you would need the -S variant for position detection. The stop screw sets the forward endpoint but is not a mid-stroke lock, so expect piston drift if air pressure is lost.
Airtac MIJ Adjustable Cylinder MIJ40X350-30 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X350-30 |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MIJ40X350-30
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MIJ40X350-30 Is Used
Pallet Diverting Gate
Extend a heavy diverting arm across a conveyor line, using the adjustable end position to tune the exact blocking distance for different pallet widths on the fly.
Vertical Lift Stops
Lift loads up to 32 kg in a staging zone and fine-tune the raise height within the 30 mm window, ensuring precise alignment with downstream packaging equipment.
Is the Airtac MIJ Adjustable Cylinder MIJ40X350-30 the Right Cylinder?
The 30 mm adjustment window is ideal for taking up mechanical tolerances during setup or staging feeds across multiple stations, allowing one part number to cover several intermediate stops.
Mounting options include LB foot, FA flange, and TC trunnion brackets, but note that the SDB pivot block is not available on this adjustable-stroke variant. Since this specific SKU lacks the internal magnet, it cannot accept position sensors; if your cycle requires end-of-stroke confirmation, select the -S magnet version to enable CMSG, DMSG, or EMSG switches. For applications where gravity or external forces might cause drifting on air loss, add an external rod lock or pilot check valve, as the bumper pads only decelerate the stroke end and will not hold the 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 MIJ40X350-30 FAQ
This double-acting cylinder features a 1/4" port and a male M12x1.25 rod thread. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw allows you to shorten the extend stroke by up to 30 mm on site, giving a usable forward range of 320 to 350 mm while retract remains at the full 350 mm. This SKU lacks a magnet so it cannot take sensors, but the stainless steel build resists mild corrosion, and the screw only sets the end position rather than locking mid-stroke.
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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