
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X100-100S 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.
Trim the forward stop by up to 100 mm on site without swapping cylinders, and let the needle-set air cushion soak up high-speed shock at both ends. The MICJ40X100-100S is a double-acting, round-body stainless-steel mini cylinder featuring a Ø16 mm piston rod, a 1/4" port, and an M12x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion and washdown environments.
The built-in -S magnet enables CMSG, DMSG, or EMSG sensors for position detection. The external screw sets the extend end position only and is not a mid-stroke lock.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X100-100S |
|---|---|
| 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. |
| -100 | 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.
Dial in the exact 100 mm extend stop to clamp 32 kg workpieces securely, relying on the air cushion to absorb the impact of rapid high-force moves.
This Ø40 model is ideal for fast, settable-position moves where the 100 mm extend adjustment dials in the exact forward stop while the adjustable air cushion decelerates the impact. Mount using LB foot, FA flange, or TC trunnion brackets, as the SDB pivot-block is not available on this adjustable variant.
Remember that a plain cylinder does not hold its load on air loss; the piston drifts, and the cushion only decelerates near the stroke end. For a held load, specify an external rod lock or a pilot-operated check valve.
Quick checklist
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 100 mm, while a needle valve adjusts the air cushion at both ends to decelerate high-speed impacts. The cushion is not a brake, and the cylinder will drift on air loss; use an external rod lock to hold a load.
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