
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X100-30 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in your forward stop down to the millimeter without swapping cylinders: the MICJ40X100-30 uses an external screw to shorten the extend end position by up to 30 mm on site, giving a usable forward range of 70-100 mm. This round-body stainless steel mini cylinder pairs that settable extend stroke with a needle-adjustable air cushion at both ends, soaking up high-speed shock at the 100 mm limit.
This non-magnet SKU cannot host CMSG/DMSG/EMSG sensors; add the -S variant for position detection.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X100-30 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting, double rod, adjustable stroke + cushion |
| 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 | Variable air cushion, both ends |
| 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).
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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.
Pushes loaded carts at 800 mm/s using 628.3 N @0.5 MPa, tuning the 30 mm extend stop to hit the diverter gate precisely while the dual air cushions absorb the high-speed impact.
Halts 32 kg pallets on a washdown line; the stainless build resists moisture, and the adjustable forward position lets you tweak the stop distance without changing hardware.
The 30 mm extend stop and dual adjustable cushions shine in fast set-position moves where you must tune the impact deceleration. Remember the stop screw sets the end position only—it is not a mid-stroke lock. The cylinder will drift on air loss, so fit an external rod lock or pilot check valve to hold a suspended load.
Mount this double-acting unit via LB foot, FA flange or TC trunnion (the SDB pivot-block is not available on adjustable-stroke types). Because this specific SKU lacks the -S magnet, it cannot accept position sensors.
Quick checklist
This Ø40 mm bore cylinder uses a 1/4" port and a M12x1.25 male rod thread. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm (retract stays full). The needle-adjustable air cushion at both ends only decelerates the piston near the stroke end to absorb shock—it is not a mid-stroke lock or brake. The cylinder will drift on air loss, so use an external rod lock for holding. This non-S SKU has no magnet and cannot take sensors.
Genuine AirTAC parts produced by AirTAC factory.
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