
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X100-20S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 100mm 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 a precise forward stop on-site with the AirTAC MICJ20X100-20S, a stainless-steel round-body mini cylinder featuring an adjustable extend stroke and needle-set air cushions at both ends. An external stop screw shortens the extend end by up to 20 mm (yielding an 80-100 mm usable forward travel) without swapping hardware, while the dual cushions absorb high-speed impact. Driven by a 1/8" port and an Ø8 mm rod, it delivers 157 N of push force at 0.5 MPa.
Built with a mildly corrosion-resistant stainless barrel and rod, this double-acting unit conforms to the ISO 6432 mounting interface for straightforward bracket integration. The built-in magnet (-S) supports CMSG, DMSG, and EMSG position switches. Factoring a 2:1 safety margin against the 0.5 MPa push rating, it provides a safe vertical lift of about 8 kg, making it highly effective for moderate load positioning tasks.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X100-20S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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. |
| ×100 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Route packages at high speed on a conveyor by dialing the extend stop in by 20 mm to clear passing traffic, relying on the dual air cushions to halt the rod smoothly.
Fold varying carton sizes on the fly; the 157 N push force handles stiff cardboard while the external screw sets the exact folding depth without changing cylinders.
Press lightweight plugs into housings using the -S magnet with a DMSG sensor to verify position, fine-tuning the 80-100 mm extend window for delicate components.
When sizing this 20 mm bore, evaluate your force needs both ways: stepping down drops you to the 16 mm bore (100.5 N push @0.5 MPa), while stepping up to the 25 mm bore yields 245.3 N. Choose this model when a task requires setting a precise extend position on the fly alongside high-speed actuation, as the needle cushions prevent end-of-stroke banging. It yields a safe working load of roughly 94 N (60% of the 0.5 MPa push force).
Mount using LB foot, FA flange, or TC trunnion brackets (note that the SDB pivot block is not offered for adjustable-stroke variants). Remember that the external screw sets the end position but does not function as a mid-stroke lock; if air pressure drops, the piston will drift. To hold a load securely during air loss, install an external rod lock or pilot-operated check valve. The -S magnet enables CMSG/DMSG/EMSG sensors for exact tracking.
Quick checklist
This 20 mm bore cylinder uses a 1/8" port and delivers 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. Its theoretical maximum force is 32 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 20 mm (retract remains full), while the adjustable air cushions at both ends decelerate the piston near stroke ends to absorb high-speed shock. The -S suffix indicates a built-in piston magnet for use with CMSG, DMSG, or EMSG sensors.
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Covers non-human-caused product damage.
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