
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X100-50S 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 MICJ20X100-50S, a double-acting stainless-steel round-body mini cylinder. An external screw trims the extend stroke by up to 50 mm, giving a usable forward range of 50 to 100 mm, 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, making its safe working load roughly 94 N, or about an 8 kg vertical lift with a 2:1 margin.
Built to the ISO 6432 mounting interface for Ø20 bores, this riveted stainless barrel and rod construction resists mild corrosion and washdown environments. The -S suffix indicates a built-in piston magnet, allowing you to mount CMSG, DMSG, or EMSG sensors for position detection. The extend adjuster and end cushions handle dynamic deceleration, but note that the cylinder does not hold position on air loss; use an external rod lock or pilot check valve for static holding.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X100-50S |
|---|---|
| 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. |
| -50 | 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.
Dial the extend stroke from 50 to 100 mm to seat delicate parts. The 157 N push force clamps securely while the air cushion prevents impact damage.
Sort light packages on the fly. The 8 kg vertical lift capacity handles flap diversion, and the external stop screw lets you reposition the gate quickly.
Press carton seals at high cycle rates. The needle-set air cushion absorbs end shock, while the -S magnet confirms extend position for the PLC.
When sizing this 20 mm bore, step down to the Ø16 bore if your load is under 100 N push at 0.5 MPa, or step up to the Ø25 bore (245 N push) if you need to move heavier fixtures. The MICJ20X100-50S is ideal when you need rapid, repeatable set-position moves; the external stop screw sets the exact extend endpoint without swapping cylinders, and the dual adjustable air cushions prevent end-of-stroke banging at speeds up to 800 mm/s. Mount using standard LB foot, FA flange, or TC trunnion brackets (SDB pivot-block is not available on this adjustable variant). Position detection is fully enabled via the -S magnet using CMSG, DMSG, or EMSG switches.
Quick checklist
This 20 mm bore cylinder uses a 1/8" port and an Ø8 mm rod. It generates 157 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 50 mm (usable range 50-100 mm); retract remains full. Needle valves adjust the air cushion at both ends to decelerate the piston near stroke ends. The -S suffix means it has a magnet for CMSG/DMSG/EMSG sensors. The stop screw is not a mid-stroke lock.
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