Airtac MIJ Adjustable Cylinder MIJ40X400-75
The AirTAC MIJ Adjustable Cylinder MIJ40X400-75 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 400mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke400 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 MIJ40X400-75
Dial in your forward end position on-site with the AirTAC MIJ40X400-75, a round-body stainless mini cylinder featuring a 75 mm extend-stroke reduction window. This double-acting actuator uses an external stop screw to trim the forward stroke down from its 400 mm nominal length, letting you cover multiple stop distances with one part number. The retract stroke remains full length.
Built with a stainless-steel barrel and rod for mild corrosion resistance, this Ø40 mm unit pushes 628.3 N and pulls 527.8 N at 0.5 MPa. It uses a 1/4" port, fixed TPU bumper pads, and operates at 30-800 mm/s.
Airtac MIJ Adjustable Cylinder MIJ40X400-75 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X400-75 |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 MIJ40X400-75
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 MIJ40X400-75 Is Used
Heavy Diverter Gate
Set the exact push distance to deflect heavy cartons on a conveyor, using the 75 mm adjustment to fine-tune the gate angle for varying package sizes.
Large Case Flap Folding
Drive a folding arm to close heavy cardboard flaps, adjusting the extend end position on-site to accommodate different case depths without swapping actuators.
Is the Airtac MIJ Adjustable Cylinder MIJ40X400-75 the Right Cylinder?
If you need less push, the next size down is the Ø32 bore delivering 402.2 N; since 40 is the largest available MIJ bore, moving up requires a different cylinder family. The 75 mm adjustment window is ideal for taking up mechanical tolerances during setup without machining new hard stops.
Remember that the stop screw only sets the forward end position—it is not a mid-stroke lock. The piston will drift if air pressure is lost, so install an external rod lock or pilot check valve for held loads. Mount via LB foot, FA flange, or TC trunnion (SDB is unavailable). This SKU lacks a magnet, so it cannot accept CMSG/DMSG/EMSG sensors; choose the -S variant if you require position 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 MIJ40X400-75 FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa. It features a 1/4" port and a Ø16 mm rod.
An external stop screw shortens the extend stroke by up to 75 mm, giving a usable forward range of 325-400 mm; the retract stroke remains full length. This SKU has no magnet (-S), so it cannot take position sensors, and it uses fixed TPU bumpers rather than adjustable air cushions.
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 MIJ40X400-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.