Airtac MIJ Adjustable Cylinder MIJ20X25-30S
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X25-30S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 25mm 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
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
- 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 MIJ Adjustable Cylinder MIJ20X25-30S
Dial in your forward end position on-site with the AirTAC MIJ20X25-30S, a round-body stainless steel mini cylinder that lets an external stop screw shorten the extend stroke by up to 30 mm without swapping parts. Built as a double-acting actuator with a 25 mm nominal stroke, it uses a Ø8 mm piston rod and a 1/8" air port to generate 157 N of push force at 0.5 MPa. The stainless barrel and rod supply mild corrosion resistance for washdown or humid settings.
This Ø20 mm bore conforms to the ISO 6432 mounting interface, dropping directly into standard mini brackets and clevises. With a safe working load around 94 N (about 60% of the 0.5 MPa push figure), it can vertically lift roughly 8 kg using a 2:1 safety margin. The integrated piston magnet (-S) supports CMSG, DMSG and EMSG position sensing.
Airtac MIJ Adjustable Cylinder MIJ20X25-30S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X25-30S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed TPU bumper pads |
| 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 MIJ Adjustable Cylinder MIJ20X25-30S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 MIJ Adjustable Cylinder MIJ20X25-30S Is Used
Changeover Dial-In
Fine-tune the extend stop up to 30 mm during product changeovers on a packaging line, using the 157 N push force to cycle light pushers without changing hardware.
Tolerance Take-Up Gate
Absorb upstream part-length variances by trimming the forward stroke on the fly, letting the 8 kg vertical lift capability route cartons smoothly.
Staged Part Feeding
Set precise multiple forward stops from a single 25 mm stroke to stage components, relying on the -S magnet and DMSG sensors to confirm each position.
Is the Airtac MIJ Adjustable Cylinder MIJ20X25-30S the Right Cylinder?
When sizing this actuator, step down to the Ø16 bore if your application only requires 100 N of push force at 0.5 MPa, or move up to the Ø25 bore (245 N push @0.5 MPa) if the 157 N output here is insufficient. The 30 mm adjustment window is ideal for taking up mechanical tolerances during setup or covering several stop positions with one part number. Remember that the stop screw only trims the extend end; retract travel remains full.
This model uses fixed TPU bumper pads to decelerate the stroke end rather than an adjustable air cushion. The cylinder does not hold position on air loss, so add an external rod lock or pilot check valve for suspended loads. Mount via LB foot, FA flange or TC trunnion (the SDB pivot block is not offered on this adjustable variant).
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 MIJ Adjustable Cylinder MIJ20X25-30S FAQ
This Ø20 mm bore cylinder features a 1/8" air 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 on-site, setting the exact forward end position without affecting the full retract stroke. The -S suffix indicates a built-in piston magnet for CMSG, DMSG or EMSG sensors; a SKU without S cannot take a sensor.
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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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