
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X35-20S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 35mm 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 20 mm on site without swapping cylinders, and let the needle-set air cushions at both ends soak up high-speed shock. This AirTAC MICJ25X35-20S is a double-acting, round-body stainless-steel mini cylinder with an adjustable extend stroke, giving a usable forward range of 15-35 mm while retract remains full.
Built with a stainless barrel and rod for mild washdown resistance, it drops into standard ISO 6432 mini-cylinder brackets. The Ø25 bore delivers 245.3 N of push force at 0.5 MPa, yielding a safe working load of about 147 N or a 12.5 kg vertical lift with a 2:1 margin. The -S suffix means a piston magnet is present for CMSG, DMSG or EMSG sensors.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X35-20S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 35 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 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). |
|---|---|
| 25 | Bore size in mm. |
| ×35 | 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.
Clamp parts securely using the 245.3 N push force while dialing the exact 15-35 mm forward contact position with the external screw to avoid crushing delicate workpieces.
Push cartons at high speed and rely on the dual adjustable air cushions to decelerate the piston smoothly at stroke end, preventing harsh impact on the assembly line.
Route products on a conveyor with this stainless-steel round-body cylinder, using the on-site extend adjustment to fine-tune the gate opening without changing the mounting hardware.
At 0.5 MPa this Ø25 bore pushes 245.3 N and pulls 206.1 N. If you need less force, the Ø20 bore pushes 157.0 N; if you need more, step up to the Ø32 bore at 402.2 N. The 20 mm extend stop screw is ideal for fast set-position moves, but note it only sets the end position—it is not a mid-stroke lock, and the cylinder will drift on air loss. Use an external rod lock or pilot check valve to hold a suspended load.
Mount using LB foot, FA flange or TC trunnion brackets (the SDB pivot-block is not offered on this adjustable variant). The 1/8" port and M10x1.25 male rod thread match standard mini-cylinder hardware, and the built-in magnet supports reed or electronic switches.
Quick checklist
This double-acting cylinder has a 1/8" air port. At 0.5 MPa it pushes 245.3 N and pulls 206.1 N. At 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 20 mm, while needle valves adjust the air cushions at both ends to absorb high-speed shock. The cylinder operates at 30-800 mm/s. The -S suffix enables CMSG/DMSG/EMSG sensors. It does not hold position on air loss, so use an external rod lock for suspended loads.
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