Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30S 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 MICJ25X40-30S
Dial in a precise forward stop on-site with the AirTAC MICJ25X40-30S, a stainless-steel round-body mini cylinder that shortens the extend stroke by up to 30 mm via an external screw. Driven by double-acting air, it delivers 245.3 N of push force at 0.5 MPa and features a needle-adjustable air cushion at both ends to soak up high-speed shock. The built-in magnet (-S) directly supports CMSG, DMSG, and EMSG position switches.
Built with a 25 mm bore, a 10 mm piston rod, and a 1/8" port, this unit conforms to ISO 6432 mounting dimensions for easy bracket interchange. The stainless construction resists mild corrosion and washdown environments. With a 0.5 MPa push force of 245.3 N, it provides a safe working load of about 147 N, moving roughly 12.5 kg vertically with a 2:1 safety margin.
Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30S |
|---|---|
| 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 MICJ25X40-30S
| 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 MICJ25X40-30S Is Used
Adjustable Clamping Press
Sets a precise 10-40 mm forward clamp on varied parts, using the dual air cushions to absorb the high-speed impact of the 245 N push force.
Dynamic Divert Stopper
Halts lightweight cartons on a line; the 30 mm extend trim fine-tunes the stopping distance on-site without swapping hardware.
Vertical Lid Placer
Lowers lids weighing up to 12.5 kg safely; the needle cushions decelerate the descent, while the -S magnet confirms lid placement.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30S the Right Cylinder?
When sizing this 25 mm bore, stepping down to a 20 mm MICJ drops the 0.5 MPa push force to 157 N, while moving up to a 32 mm bore increases it to 402 N. Choose this model when a task needs exact extend positioning combined with high-speed deceleration; the external screw sets the end stop, and the dual cushions absorb the impact. Remember the stop screw only trims the extend end and does not function as a mid-stroke lock. If the load must be held on air loss, install an external rod lock or pilot check valve, as the piston will drift. Mount via LB, FA, or TC brackets (SDB is not offered), and use the -S magnet for CMSG/DMSG/EMSG 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 MICJ25X40-30S FAQ
This 25 mm bore cylinder features a 1/8" air port and a 10 mm rod. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum of 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm (usable extend 10-40 mm) without affecting the full retract. Needle valves adjust the air cushions at both ends to decelerate the piston at high speed. The -S magnet enables CMSG/DMSG/EMSG sensors, but note the cushion only decelerates and does not lock the 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.
Related AirTAC MICJ Cylinders
Request a Quote for Airtac MICJ Adjustable Mini Cylinder MICJ25X40-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.