
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X250-75 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 250mm 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 75 mm on site without swapping hardware using this AirTAC MICJ25X250-75 mini cylinder. The external screw shortens the extend end position (usable forward range 175-250 mm), while a needle-set variable air cushion at both ends soaks up high-speed shock. Built as a double-acting, round-body stainless unit, it carries a 1/8" port and a Ø10 mm rod with an M10x1.25 male thread.
The Ø25 bore generates 245.3 N of push force at 0.5 MPa, translating to a safe working load of roughly 147 N or a 12.5 kg vertical lift with a 2:1 margin. Because this SKU lacks the -S magnet, it cannot host CMSG, DMSG or EMSG sensors. It uses the ISO 6432 mounting interface for standard mini brackets, and the stainless barrel and rod resist mild washdown corrosion.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X250-75 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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. |
| ×250 | Stroke length in mm. |
| -75 | 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 in a 175-250 mm forward pressing stroke to seat components precisely using the 245.3 N push force, relying on the dual air cushions to absorb impact at high speed.
Extend a diverter arm to a tuned end point without swapping cylinders; the 1/8" ported Ø25 bore delivers reliable force while the needle cushion softens the stop.
Lift roughly 12.5 kg of inventory and fine-tune the extend reach by up to 75 mm, ensuring gentle deceleration at the top without harsh mechanical banging.
For lighter duty, the Ø20 bore provides 157 N of push at 0.5 MPa; for heavier demands, the Ø32 bore steps up to 402 N. Choose this Ø25 model when you need 245.3 N of push combined with on-the-fly extend tuning and high-speed shock absorption. The stop screw sets the end position but is not a mid-stroke lock, and the cylinder will drift on air loss, so add an external rod lock or pilot check valve to hold a suspended load. Mount via LB foot, FA flange or TC trunnion, as the SDB pivot block is not offered on adjustable-stroke variants.
Quick checklist
This double-acting cylinder features a 1/8" port and delivers 245.3 N push / 206.1 N pull at 0.5 MPa, 343.4 N push / 288.5 N pull at 0.7 MPa, with a theoretical max of 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 75 mm (retract remains full), and needle-set air cushions at both ends decelerate the piston near stroke end. The stop screw is not a mid-stroke lock, the cushion is not a brake, and the piston will drift on air loss; use an external rod lock to hold a load. This non-S SKU cannot take a sensor.
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