
The AirTAC MICJ Adjustable Mini Cylinder MICJ16X125-20S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø16mm bore and 125mm stroke, M5×0.8 air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface fits standard ISO 6432 mini-cylinder mounting interfaces.
Dial in a precise forward stop on-site without swapping cylinders: the MICJ16X125-20S uses an external screw to shorten the extend end position by up to 20 mm, giving a usable forward range of 105-125 mm. Retract remains full stroke. Built as a stainless-steel, riveted round-body mini cylinder, it pairs this adjustable extend stroke with a needle-set adjustable air cushion at both ends to soak up high-speed shock.
The stainless barrel and rod resist mild corrosion and washdown. The built-in magnet (-S) supports CMSG, DMSG, and EMSG sensors.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ16X125-20S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 125 mm |
| Acting type | Double acting, double rod, adjustable stroke + cushion |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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.
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 86 N |
| 0.7 MPa | 121 N |
| Max (@1.0 MPa) | 18 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 | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 16 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -20 | 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.
Drives a 5 kg machining fixture forward, using the 20 mm extend trim to dial in the exact clamping depth without machining spacers.
Folds light packaging flaps at high cycle rates; the dual-end air cushion absorbs the 100.5 N impact to prevent denting the cardboard.
Extends a fluid dispenser nozzle to a precise 105 mm stop in a washdown environment, relying on the stainless rod for mild corrosion resistance.
For lighter moves, the MIJ series offers a bumper-only design without the air cushion, whereas stepping up to the Ø20 MICJ increases the 0.5 MPa push force to 157 N. The Ø16 is ideal when you need about 60 N of safe working force in a compact ISO 6432 footprint. The combination of an adjustable forward stop and dual-end air cushions shines in fast set-position applications where you must tune the impact deceleration precisely.
Remember that the stop screw sets only the end position, not a mid-stroke lock, and the air cushion only decelerates near the stroke end. The piston will drift on air loss, so fit an external rod lock or pilot check valve if you need to hold a suspended load. Mount via LB foot, FA flange, or TC trunnion (SDB is not offered on this adjustable variant), and use CMSG/DMSG/EMSG switches with this -S magnet model.
Quick checklist
This Ø16 double-acting cylinder has an M5×0.8 port and an M6x1.0 male rod thread.
An external screw shortens the extend stroke by up to 20 mm on-site, while a needle valve adjusts the air cushion at both ends to decelerate high-speed impacts. The -S suffix means it has a built-in magnet for CMSG/DMSG/EMSG sensors. The cushion only decelerates near the end of travel; it is not a brake, so the piston will drift on air loss.
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Covers non-human-caused product damage.
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