Airtac MICJ Adjustable Mini Cylinder MICJ25X125-30
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X125-30 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 125mm 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
- Stroke125 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 MICJ25X125-30
Trim the forward stop by up to 30 mm on-site without swapping hardware using the AirTAC MICJ25X125-30. This double-acting, round-body stainless steel mini cylinder pairs that adjustable extend stroke with a needle-set air cushion at both ends, letting you dial in the exact end position while soaking up high-speed shock. The 125 mm nominal stroke yields a usable extend range of 95-125 mm, and the retract stroke remains full.
Built with a stainless barrel and piston rod for mild washdown resistance, the Ø25 bore conforms to the ISO 6432 mounting interface for standard mini brackets. 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. Air ports are 1/8". Note this SKU lacks a magnet, so it cannot accept CMSG/DMSG/EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ25X125-30 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X125-30 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 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 MICJ25X125-30
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -30 | 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 MICJ25X125-30 Is Used
Divert Gate Tuning
Dial in the 95-125 mm extend stop to hit a divert gate perfectly on a conveyor line, using the adjustable cushion to absorb the impact of rapid 245 N routing pushes.
Carton Flap Folding
Set a precise forward position for folding heavy carton flaps, relying on the 12.5 kg vertical lift capacity and needle cushion to prevent crushing the packaging.
Light Press Fit
Press small bearings or pins to an exact depth by trimming the extend stroke 30 mm, letting the air cushion decelerate the 10 mm rod before impact.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X125-30 the Right Cylinder?
For lighter tasks needing under 157 N of push at 0.5 MPa, step down to the Ø20 bore; if your load exceeds 343.4 N at 0.7 MPa, step up to the Ø32 bore. The Ø25 hits a solid middle ground, and the 30 mm extend adjuster is ideal for fast set-position moves where you need to tune the forward stop on the fly. The adjustable air cushion handles deceleration at speeds up to 800 mm/s.
Remember that the stop screw sets the end position but is not a mid-stroke lock; the cylinder will drift on air loss, so add an external rod lock or pilot check valve for held loads. Mount via LB foot, FA flange, or TC trunnion (SDB pivot-block is not available on this adjustable variant). Because this specific SKU has no -S magnet, it cannot support position sensing.
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 MICJ25X125-30 FAQ
This Ø25 mm bore cylinder features a 1/8" air port and a male M10x1.25 rod thread. At 0.5 MPa it provides 245.3 N push and 206.1 N pull force. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 30 mm (usable extend 95-125 mm), while a needle valve adjusts the air cushion at both ends to decelerate high-speed moves. The cushion only softens the end-of-stroke impact and is not a brake. This SKU has no magnet, so it cannot take sensors; the -S variant is required for CMSG/DMSG/EMSG switches. The cylinder will drift on air loss, so use an external rod lock for holding.
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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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