Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 40mm 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
- Stroke40 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 MICJ25X40-30
Trim the forward stop by up to 30 mm on-site without swapping hardware: the MICJ25X40-30 uses an external screw to shorten the extend end position from its 40 mm nominal down to 10 mm, while the retract stroke remains full. A needle-set adjustable air cushion at both ends soaks up high-speed shock, letting you set the exact position and control the impact.
Built as a stainless-steel round-body mini cylinder, the riveted barrel and Ø10 mm rod shrug off mild corrosion and washdown. It conforms to the ISO 6432 mounting interface for standard brackets. Delivering 245.3 N of push force at 0.5 MPa, it handles a safe working load of roughly 147 N or lifts about 12.5 kg vertically with a 2:1 margin. Note this SKU lacks a magnet, so it cannot accept CMSG/DMSG/EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 40 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 MICJ25X40-30
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 MICJ25X40-30 Is Used
Light Press Assembly
Dial in the 10-40 mm extend stop to press small bearings without bottoming out, using the air cushion to soften the 245 N impact.
Package Diverting
Trim the stroke on-site to match varying box sizes while the stainless body handles occasional washdown on the line.
Vertical Lift Stops
Lift roughly 12.5 kg loads and use the adjustable forward screw to set precise drop heights before the cushion decelerates the load.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30 the Right Cylinder?
For lighter duties, the Ø20 bore yields 157 N of push at 0.5 MPa; if you need more muscle, step up to the Ø32 bore which pushes 402 N. This Ø25 model hits a sweet spot for fast set-position moves where the 30 mm extend adjuster and dual air cushions prevent end-of-stroke banging. The 1/8" port and M10x1.25 male rod thread match standard mini fittings.
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 pivot-block is unavailable on this adjustable variant). Because this exact SKU has no -S magnet, position sensing is impossible here.
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 MICJ25X40-30 FAQ
This double-acting cylinder pushes 245.3 N and pulls 206.1 N at 0.5 MPa. 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. It uses a 1/8" air port and a Ø10 mm piston rod with an M10x1.25 male thread.
An external screw shortens the extend stroke by up to 30 mm (usable extend 10-40 mm) so you can set the forward stop on-site; retract remains full. The adjustable air cushion at both ends only decelerates the piston near stroke ends to absorb high-speed shock—it is not a mid-stroke lock or brake. This SKU has no magnet, so it cannot take sensors; the -S variant is required for CMSG/DMSG/EMSG switches.
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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