Airtac MICJ Adjustable Mini Cylinder MICJ25X300-30S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X300-30S 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 MICJ25X300-30S
Tune the forward stop on-site without swapping hardware: the AirTAC MICJ25X300-30S uses an external screw to shorten the extend stroke by up to 30 mm (usable extend 270-300 mm), while a needle-set adjustable air cushion at both ends soaks up high-speed shock. This double-acting, round-body stainless-steel mini cylinder delivers 245.3 N push and 206.1 N pull at 0.5 MPa, yielding a safe working load of roughly 147 N or a 12.5 kg vertical lift with a 2:1 margin.
Built with a corrosion-resistant stainless barrel and rod, the Ø25 bore conforms to the ISO 6432 mounting interface for standard mini brackets. It features a 1/8" port, an M10x1.25 male rod thread, and a built-in magnet (-S) for CMSG/DMSG/EMSG sensors. The stop screw sets the end position but is not a mid-stroke lock; the cylinder drifts on air loss, so add an external rod lock or pilot check valve for held loads.
Airtac MICJ Adjustable Mini Cylinder MICJ25X300-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X300-30S |
|---|---|
| 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 MICJ25X300-30S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×300 | 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 MICJ25X300-30S Is Used
Adjustable Pressing Station
Dial in the exact 270-300 mm extend contact point for pressing light assemblies, using the 245.3 N force and needle cushions to absorb the end-of-stroke impact.
Variable Length Diverter
Extend the rod to deflect packages on a line, trimming the stroke by up to 30 mm on-site to match different product sizes without changing the cylinder.
Vertical Lift Gate
Lift a 12.5 kg gate with a 2:1 safety margin, relying on the adjustable air cushion to prevent slamming at the top of the 300 mm travel.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X300-30S the Right Cylinder?
When sizing, step down to the Ø20 bore for lighter loads (157 N push @0.5 MPa) or up to the Ø32 bore for heavier moves (402 N push @0.5 MPa). The MICJ25X300-30S excels in fast set-position applications where you need to dial in the forward stop and rely on the dual-end air cushions to decelerate smoothly.
For mounting, use LB foot, FA flange, or TC trunnion brackets (the SDB pivot-block is not available on this adjustable variant). The included -S magnet supports CMSG, DMSG, and EMSG switches for position sensing. Remember that the cushion only decelerates near the stroke end and does not act as a brake.
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 MICJ25X300-30S FAQ
This double-acting cylinder pushes 245.3 N and pulls 206.1 N at 0.5 MPa, and pushes 343.4 N / pulls 288.5 N at 0.7 MPa. The theoretical max force is 50 kgf at 1.0 MPa. It uses a 1/8" port and an M10x1.25 male rod thread.
An external screw shortens the extend stroke by up to 30 mm on-site (retract remains full). A needle-set adjustable air cushion at both ends decelerates the piston at high speed but does not lock the load. The -S denotes a built-in magnet for CMSG, DMSG, or EMSG sensors.
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 MICJ25X300-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.