Airtac MIJ Adjustable Cylinder MIJ40X30-30H
The AirTAC MIJ Adjustable Cylinder MIJ40X30-30H is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 30mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke30 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 MIJ40X30-30H
Dial in your forward end position on-site with the AirTAC MIJ40X30-30H, a round-body stainless steel mini cylinder featuring a 30 mm adjustable extend stroke. The external stop screw lets you shorten the forward travel by up to 30 mm without swapping parts, while the retract stroke remains full length. Built with a stainless barrel and rod, it handles mild corrosion and washdown environments, and the -H seal option equips it for high-temperature duty.
As the largest bore in the series, this double-acting unit delivers substantial force, pushing 628.3 N and pulling 527.8 N at 0.5 MPa. It uses a 1/4" port, a Ø16 mm rod with an M12x1.25 male thread, and relies on fixed TPU bumper pads to decelerate the stroke end.
Airtac MIJ Adjustable Cylinder MIJ40X30-30H Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X30-30H |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 MIJ40X30-30H
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 MIJ40X30-30H Is Used
Staged Divert Gate
Fine-tune the diverting stroke length on-site to accommodate different package sizes without changing the cylinder setup.
High-Temp Ejector
Use the -H Viton seals and stainless build to eject parts reliably in heated zones, trimming the extend stop to match the chute position.
Is the Airtac MIJ Adjustable Cylinder MIJ40X30-30H the Right Cylinder?
The 30 mm stop screw is ideal for taking up mechanical tolerances or staging a feed, but remember the screw only sets the extend endpoint. It is not a mid-stroke lock, and the piston will drift if air pressure is lost. Use an external rod lock or pilot check valve for held loads.
Mount this round-body mini cylinder using LB foot, FA flange, or TC trunnion brackets; the SDB pivot block is not available on this adjustable variant. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG sensors. If position detection is required, select the -S version instead.
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 MIJ40X30-30H FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. This 40 mm bore uses a 1/4" air port and a Ø16 mm rod.
An external stop screw shortens the extend stroke by up to 30 mm on-site, letting you dial in the forward end position; the retract stroke remains full. This SKU has no magnet (-S), so it cannot take CMSG/DMSG/EMSG sensors. It uses fixed TPU bumper pads, not an adjustable air cushion.
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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