
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X125-10S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 125mm 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 MICJ20X125-10S, a double-acting round-body mini cylinder built from stainless steel for mild washdown resistance. An external screw trims the extend end position by up to 10 mm (yielding a 115-125 mm usable forward stroke), while a needle-set adjustable air cushion at both ends absorbs high-speed shock. Driven by a 1/8" port and an Ø8 rod, it delivers 157 N of push force at 0.5 MPa.
This ISO 6432 mounting-interface unit moves a safe working load of about 94 N, making it suitable for vertical lifts of roughly 8 kg with a 2:1 safety margin. The integrated -S piston magnet supports CMSG, DMSG, and EMSG position switches. Note that the stop screw sets the end position but does not function as a mid-stroke lock; the piston will drift on air loss unless you add an external pilot check valve.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X125-10S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 125 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. |
| ×125 | Stroke length in mm. |
| -10 | 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.
Trims the 125 mm extend stroke by 10 mm to hit a precise conveyor divert gate position, using the dual air cushions to silently absorb the impact of high-speed package routing.
Provides 157 N of push at 0.5 MPa to fold light cardboard flaps, with the stainless build resisting moisture and the adjustable stop preventing over-travel crush.
Lowers delicate components with an 8 kg vertical lift margin, relying on the needle-set cushion to decelerate the load smoothly just before the bottomed position.
When sizing this 20 mm bore, stepping down is not a direct cushioned path—the smaller Ø16 MICJ offers 100.5 N push @0.5 MPa, while the next size up, the Ø25, jumps to 245.3 N. Choose this model when you need 157 N of push force combined with on-the-fly extend tuning and end-of-stroke shock absorption. The adjustable stop and dual air cushions excel in fast, settable-position moves.
Mount this cylinder using LB foot, FA flange, or TC trunnion hardware (the SDB pivot block is not offered on this adjustable variant). Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG sensors. Remember that the air cushion only decelerates near the stroke end—it will not hold a load in place during a pressure drop.
Quick checklist
This 20 mm bore cylinder uses a 1/8" air port. At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 10 mm on-site, giving a 115-125 mm usable forward range (retract remains full). Needle valves set the adjustable air cushion at both ends to decelerate the piston before impact. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG sensors.
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