
The AirTAC MIJ Adjustable Cylinder MIJ40X450-10 is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Trimming the forward end position by up to 10 mm on site, the MIJ40X450-10 lets you fine-tune a 450 mm extend stroke to an exact 440-450 mm window without changing the cylinder. This round-body stainless steel mini cylinder delivers substantial double-acting force, pushing with 628.3 N and pulling with 527.8 N at 0.5 MPa.
Built with a 40 mm bore, a Ø16 mm rod, and a 1/4" port, the riveted stainless barrel and rod resist mild corrosion and washdown environments. Fixed TPU bumper pads decelerate the stroke ends, and because this SKU lacks a magnet, it cannot host CMSG, DMSG, or EMSG sensors.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X450-10 |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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.
| 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).
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -10 | 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.
Halts loaded pallets on a roller conveyor; the external stop nut fine-tunes the 450 mm forward end position to compensate for varying pallet depths.
Operates access doors in mildly corrosive washdown zones thanks to the stainless steel build, providing reliable 527.8 N pull force on the retract stroke.
When sizing this 40 mm bore unit, dropping down to an MIJ32 lowers the 0.5 MPa push force to 402.2 N, while no larger standard MIJ bore exists above it. The 10 mm external stop screw is ideal for taking up mechanical tolerances during setup or matching multiple stops under one part number. Remember that the adjuster only shortens the extend stroke; retract remains full.
This cylinder relies on air pressure to move and will drift if air is lost, as the stop screw and bumpers do not function as a mid-stroke lock or brake. For suspended loads that must hold position, specify an external rod lock or pilot check valve. Mounting options include LB foot, FA flange, and TC trunnion (the SDB pivot block is unavailable for this adjustable variant).
Quick checklist
At 0.7 MPa, push increases to 879.6 N and pull to 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 10 mm on site, giving a usable forward range of 440-450 mm, while retract remains full. This specific SKU has no magnet and cannot take CMSG, DMSG, or EMSG sensors; you would need the -S variant for position sensing.
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