Airtac MICJ Adjustable Mini Cylinder MICJ25X125-20S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X125-20S 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 MICJ25X125-20S
Trim the forward stop by up to 20 mm on site without swapping hardware using this stainless-steel round-body mini cylinder. The MICJ25X125-20S is a double-acting actuator featuring a needle-set variable air cushion at both ends to soak up high-speed shock, while its external screw shortens the extend stroke to dial in a usable 105-125 mm forward position. A built-in magnet (-S) enables CMSG, DMSG, or EMSG switches for precise position sensing.
Delivering 245.3 N of push force at 0.5 MPa, it easily handles a safe working load of roughly 147 N or vertically lifts about 12.5 kg with a 2:1 margin. The Ø25 bore uses a 1/8" port and an M10x1.25 male rod thread. It conforms to the ISO 6432 mounting interface for standard mini brackets, and the stainless barrel and rod resist mild corrosion and washdown environments.
Airtac MICJ Adjustable Mini Cylinder MICJ25X125-20S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X125-20S |
|---|---|
| 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 MICJ25X125-20S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×125 | 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.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ25X125-20S Is Used
Adjustable Clamping Press
Dials in a precise 105-125 mm clamp extension on machined parts, using the 20 mm stop screw to set the exact forward position while the air cushion absorbs the 245 N impact at high speed.
Pneumatic Divert Gate
Controls package flow on a washdown line; the stainless build resists moisture, and the needle-set cushion prevents hard slamming when cycling 12.5 kg loads repeatedly.
Vertical Lift Stopper
Raises goods to a transfer height, relying on the 245.3 N push force at 0.5 MPa. The extend stopper sets the exact lift height without needing custom spacers.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X125-20S the Right Cylinder?
When sizing this actuator, compare it against adjacent bores: a smaller Ø20 MICJ yields 157 N push at 0.5 MPa, while a larger Ø32 provides 402.2 N if your payload exceeds the 147 N safe working load of this Ø25 unit. The combination of an adjustable extend stop and dual-end air cushions is specifically beneficial for fast, settable-position moves where you must tune the forward impact without changing the cylinder.
Remember that the external screw sets the end position but is not a mid-stroke lock; the air cushion only decelerates near the stroke end. The piston 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), and utilize the -S magnet for your electronic or reed sensors.
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 MICJ25X125-20S FAQ
This double-acting cylinder delivers a push force of 245.3 N and a pull force of 206.1 N at 0.5 MPa. At 0.7 MPa, push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. It features a 1/8" air port and a Ø10 mm piston rod with an M10x1.25 male thread.
An external screw shortens the extend end position by up to 20 mm, giving a usable forward stroke of 105-125 mm; retract remains full. A variable air cushion at both ends decelerates the piston near the ends to absorb high-speed shock. This -S model includes a piston magnet for CMSG/DMSG/EMSG sensors, but the stop screw and cushion do not lock or hold the load mid-stroke.
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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