Airtac MICJ Adjustable Mini Cylinder MICJ20X125-30S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X125-30S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 125mm 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
- Stroke125 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 MICJ20X125-30S
Dial in a precise forward stop on the fly with the AirTAC MICJ20X125-30S, a double-acting stainless steel round-body mini cylinder. An external screw shortens the extend end position by up to 30 mm on site, giving a usable forward range of 95-125 mm without swapping hardware. Needle-set adjustable air cushions at both ends soak up high-speed shock, letting you set the position and control the impact simultaneously. The unit operates at 30-800 mm/s and features a 1/8" port.
Built with a stainless barrel and rod, this riveted construction resists mild corrosion and handles washdown environments. It generates 157 N of push force at 0.5 MPa, yielding a safe working load of roughly 94 N or a vertical lift of about 8 kg with a 2:1 margin. The -S suffix denotes a built-in piston magnet for CMSG, DMSG or EMSG sensors. It uses the ISO 6432 mounting interface for standard mini brackets.
Airtac MICJ Adjustable Mini Cylinder MICJ20X125-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X125-30S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 125 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 MICJ20X125-30S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×125 | 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 MICJ20X125-30S Is Used
Package Diverting
Tune the 95-125 mm extend stop to push varying box sizes onto a side lane, using the air cushion to absorb impact at high cycling speeds.
Light Part Pressing
Apply a precise 157 N push force to seat electronic components, dialing in the exact forward position without reprogramming the machine.
Flap Folding
Fold carton flaps at speed; the stainless build handles light washdown while the dual cushions prevent rod bounce at stroke end.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ20X125-30S the Right Cylinder?
When sizing this 20 mm bore, step down to the 16 mm bore for lighter loads (100.5 N push @0.5 MPa) or up to the 25 mm bore for heavier tasks (245.3 N push @0.5 MPa). The 30 mm extend adjuster paired with dual air cushions is perfect for fast set-position moves where you need to tune out end-of-stroke shock. Choose LB foot, FA flange or TC trunnion mounts, noting the SDB pivot-block is not offered on this adjustable variant. Add CMSG, DMSG or EMSG switches using the -S magnet.
Remember the stop screw sets the end position but is not a mid-stroke lock. A plain cylinder does not hold its load on air loss; the piston drifts and the cushion only decelerates near the stroke end. For a held load, specify an external rod lock or pilot-operated check valve.
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 MICJ20X125-30S FAQ
This 20 mm bore cylinder has a 1/8" port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 30 mm (retract remains full). Needle valves adjust the air cushion at both ends to decelerate the piston near stroke end. 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 MICJ20X125-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.