
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X175-30S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 175mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
Dial in the forward stop on-site without swapping hardware: the AirTAC MICJ20X175-30S uses an external screw to shorten the extend stroke by up to 30 mm, giving a usable forward range of 145-175 mm. Because this stainless-steel round-body mini cylinder also features an adjustable air cushion at both ends, you simultaneously set the end position and soak up high-speed impact shock. It is a double-acting unit with a built-in magnet (-S) for position sensing.
At 0.5 MPa the Ø20 bore delivers 157 N of push force and 131.9 N of pull, translating to a safe vertical lift of about 8 kg with a 2:1 margin. The 1/8" port and M8x1.25 male rod thread match standard mini-cylinder interfaces, and the stainless barrel and rod shrug off mild washdown corrosion. Speeds run 30-800 mm/s.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X175-30S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×175 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Tune the 145-175 mm extend stop to eject 8 kg parts from a fixture precisely, relying on the adjustable air cushion to absorb the impact of fast 30-800 mm/s strokes.
Dial in the exact forward position to push light cartons across a belt, using the 157 N thrust and needle-set cushioning to prevent bounce at high cycle rates.
Lift small totes with the 219.8 N @0.7 MPa push force, adjusting the end screw by up to 30 mm to clear varying stack heights while the cushion softens the top stop.
When sizing this 157 N @0.5 MPa unit, step down to the Ø16 bore if your load is under 100 N, or move up to the Ø25 bore (245 N @0.5 MPa) if you need heavier thrust. The 30 mm extend adjuster plus needle-set air cushion is ideal for fast, settable-position moves where you must tune both the stopping spot and the deceleration rate. Mount via LB foot, FA flange, or TC trunnion (the SDB pivot block is not offered on this adjustable variant). The built-in -S magnet supports CMSG, DMSG, or EMSG switches. Note that the stop screw sets the end position but is not a mid-stroke lock; the cylinder will drift on air loss, so add an external rod lock or pilot check valve to hold a suspended load.
Quick checklist
This Ø20 mm double-acting cylinder uses a 1/8" air port and an M8x1.25 male rod thread. It generates 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
The external stop screw shortens the extend stroke by up to 30 mm (retract remains full), while the adjustable air cushion at both ends decelerates the piston near stroke end to absorb shock. The -S denotes a built-in piston magnet for CMSG, DMSG, or EMSG sensors; without it, the cylinder cannot accept switches.
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