
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X225-50 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 225mm 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.
Trim the forward stop by up to 50 mm on site without swapping hardware using this stainless-steel round-body mini cylinder. The external screw sets the extend end position from 175 to 225 mm, while a needle-adjustable air cushion at both ends absorbs high-speed shock. Driven by a 1/8" port and an 8 mm rod, it drops into standard ISO 6432 mini-cylinder brackets.
Generating 157 N of push force at 0.5 MPa, it handles a safe working load of roughly 94 N or lifts about 8 kg vertically with a 2:1 margin. The stainless barrel and rod resist mild corrosion and washdown. Note this SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X225-50 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 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. |
| ×225 | 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.
Uses the 50 mm extend trim to dial in the exact ejection arm reach, while the dual air cushions absorb the shock of high-speed 8 kg part clearing.
Sets a precise forward fold position for varying box sizes. The 157 N push force handles light cardboard, and the cushions prevent slamming at cycle end.
Adjusts the extend stop to route different product widths on the fly. The stainless build survives mild washdown in food transfer zones.
For lighter tasks, the Ø16 bore provides 100.5 N push at 0.5 MPa; if you need more muscle, step up to the Ø25 bore delivering 245.3 N. Choose this Ø20 model when you need fast, repeatable set-position moves where the 50 mm extend trim and dual cushions prevent harsh impacts. Mount via LB foot, FA flange or TC trunnion, as the SDB pivot-block is not offered on adjustable-stroke variants.
Remember that the stop screw only sets the extend end position and the air cushion strictly decelerates near stroke end. This cylinder does not hold a load on air loss, as the piston drifts. For suspended loads, install an external rod lock or pilot-operated check valve.
Quick checklist
It features 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. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 50 mm (usable range 175-225 mm), while needle valves tune the air cushions at both ends to decelerate high-speed impacts. This specific SKU has no magnet and cannot take a sensor; you need the -S variant for CMSG, DMSG or EMSG switches.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.