Airtac MICJ Adjustable Mini Cylinder MICJ25X300-50S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X300-50S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 300mm 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.
- BoreØ25 mm
- Stroke300 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MICJ Adjustable Mini Cylinder MICJ25X300-50S
Trim the forward stop by up to 50 mm on site without swapping cylinders using the AirTAC MICJ25X300-50S. This double-acting round-body mini cylinder pairs that external extend adjuster with a needle-set variable air cushion at both ends, letting you dial in the exact 250 to 300 mm forward position while soaking up high-speed shock.
Built with a stainless-steel barrel and rod for mild washdown resistance, the Ø25 bore uses a 1/8" port and conforms to the ISO 6432 mounting interface. It delivers 245.3 N of push force at 0.5 MPa, translating to 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 built-in magnet enables CMSG, DMSG or EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ25X300-50S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X300-50S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 300 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.
Theoretical Output Force (Ø25mm)
| 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.
Model Code: Airtac MICJ Adjustable Mini Cylinder MICJ25X300-50S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×300 | 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.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ25X300-50S Is Used
Adjustable Press Fit
Tune the 250-300 mm extend stop to press a 12.5 kg component into a housing, relying on the dual air cushions to absorb the 245 N end-of-stroke impact.
Dynamic Divert Stop
Act as a retractable flow barrier on a conveyor; shorten the extend position by up to 50 mm to match varying product widths while the cushion decelerates the 30-800 mm/s travel.
Vertical Lift Gate
Raise and lower a light 147 N safety gate, using the needle cushion to prevent slamming at the top end and the -S magnet to confirm closure.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X300-50S the Right Cylinder?
When sizing this 25 mm bore, step down to a 20 mm unit for 157 N push at 0.5 MPa if your load is lighter, or step up to a 32 mm bore for 402 N when you need more force. The 50 mm extend adjuster and dual air cushions shine in fast set-position moves where you must tune the impact deceleration precisely.
Remember that the stop screw sets the end position but is not a mid-stroke lock; the piston 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 (SDB is not offered), and use the -S magnet for your electronic or reed switches.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MICJ Adjustable Mini Cylinder MICJ25X300-50S FAQ
This double-acting cylinder has a 1/8" port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, 343.4 N push / 288.5 N pull at 0.7 MPa, and a theoretical maximum of 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 50 mm on-site, while needle-set air cushions at both ends decelerate the piston near the ends. The cushion only absorbs shock and does not lock the piston; on air loss the cylinder drifts, so use an external rod lock to hold a load.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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