Airtac MICJ Adjustable Mini Cylinder MICJ25X250-30S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X250-30S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 250mm 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
- Stroke250 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 MICJ25X250-30S
Trim the forward stop by up to 30 mm on site without swapping hardware using this stainless steel round-body mini cylinder. The MICJ25X250-30S delivers a 245.3 N push force at 0.5 MPa and features a needle-set variable air cushion at both ends to soak up high-speed shock. Because the -S suffix denotes a built-in piston magnet, you can mount CMSG, DMSG or EMSG sensors for position detection. The 1/8" air port and M10x1.25 male rod thread match the standard ISO 6432 mounting interface for straightforward bracket integration.
The external screw adjusts the extend end only, giving a usable forward range of 220-250 mm, while retract remains full. It yields a safe working load of roughly 147 N, moving about 12.5 kg vertically with a 2:1 margin. The stainless barrel and rod resist mild corrosion and washdown environments. Remember that the stop screw sets the end position but is not a mid-stroke lock; the piston will drift on air loss, so fit an external rod lock or pilot check valve to hold a suspended load.
Airtac MICJ Adjustable Mini Cylinder MICJ25X250-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X250-30S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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 MICJ25X250-30S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×250 | 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 MICJ25X250-30S Is Used
Diverter Gate Positioning
Trim the extend stroke up to 30 mm to dial in the exact contact point on a sorting line, using the dual air cushions to absorb the shock of rapid 245.3 N actuation.
Carton Flap Folding
Set a precise forward fold position on the fly while the stainless construction handles mild washdown, moving roughly 12.5 kg of vertical load safely.
Light Pallet Stopper
Adjust the stop screw to fine-tune the end barrier location for mixed pallet sizes, relying on the needle cushion to prevent bounce at high cycle speeds.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X250-30S the Right Cylinder?
When sizing this 25 mm bore, dropping down to a 20 mm variant cuts the 0.5 MPa push force to 157 N, while stepping up to a 32 mm bore raises it to 402 N. Choose this model when you need fast, settable-position moves where the 30 mm extend trimer and dual air cushions prevent harsh impacts at the 800 mm/s top speed. The -S magnet enables electronic or reed switches, and you can use LB foot, FA flange or TC trunnion mounts, though the SDB pivot block is not offered on this adjustable variant. For holding a load vertically during an air loss event, add an external pilot-operated check valve since the cushion only decelerates near the stroke end.
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 MICJ25X250-30S FAQ
This double-acting cylinder uses a 1/8" air port. At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa the push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm (usable range 220-250 mm), while a needle valve adjusts the air cushion at both ends to decelerate the piston near the ends. The -S means it has a built-in magnet for CMSG, DMSG or EMSG sensors. The stop screw is not a mid-stroke lock and the cylinder will drift on air loss.
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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.
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Most inquiries answered within 7-8 hours.
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