Airtac MICJ Adjustable Mini Cylinder MICJ20X225-40S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X225-40S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 225mm 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.
- BoreØ20 mm
- Stroke225 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- 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 MICJ20X225-40S
Tune the forward stop on site with the AirTAC MICJ20X225-40S, a double-acting round-body mini cylinder built from stainless steel for mild washdown resistance. An external screw shortens the extend end by up to 40 mm, giving a usable forward range of 185-225 mm, while a needle-set adjustable air cushion at both ends soaks up high-speed shock. The built-in magnet (-S) supports CMSG, DMSG, and EMSG sensors for position detection.
Operating at 30-800 mm/s on a 1/8" port, this ISO 6432 mounting-interface unit delivers 157 N of push force at 0.5 MPa. That translates to a safe working load of about 94 N, or roughly an 8 kg vertical lift with a 2:1 safety margin. The stop screw sets the end position but does not lock the piston mid-stroke, and the cushion strictly decelerates near the ends without acting as a brake.
Airtac MICJ Adjustable Mini Cylinder MICJ20X225-40S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X225-40S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MICJ20X225-40S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -40 | 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 MICJ20X225-40S Is Used
Adjustable Sorting Diverter
Dial in the 185-225 mm extend stop to deflect packages of varying sizes on a conveyor without swapping hardware, relying on the 157 N push force to pivot the guide.
High-Speed Parts Ejector
Use the needle-set air cushion to decelerate the 225 mm stroke at the end of ejection, preventing endcap shock while pushing light machined parts at cycle speeds up to 800 mm/s.
Washdown Gate Actuator
Leverage the stainless steel barrel and rod to actuate a washdown-resistant access gate, lifting an 8 kg barrier with the integrated magnet confirming the closed position.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ20X225-40S the Right Cylinder?
If you need less push force, the smaller Ø16 bore yields 100.5 N at 0.5 MPa but lacks the cushion build, whereas stepping up to the Ø25 bore provides 245.3 N for heavier loads. The Ø20 hits a solid middle ground for fast set-position moves. Because the adjuster trims the extend stroke only, retract remains full length.
This variant includes the -S magnet for electronic or reed switches. Mount using LB foot, FA flange, or TC trunnion brackets (the SDB pivot-block is not offered on adjustable-stroke types). Remember that a plain cylinder drifts on air loss; add an external rod lock or pilot check valve if you must hold a suspended load.
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 MICJ20X225-40S FAQ
This 20 mm bore cylinder features a 1/8" port and an M8x1.25 male rod thread. It generates 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 40 mm on site, while the needle-set adjustable air cushion at both ends absorbs high-speed impact. The cushion only decelerates near the stroke end and does not act as a mid-stroke lock; the cylinder will drift on air loss. The -S suffix means it has 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.
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