Airtac MIJ Adjustable Cylinder MIJ20X25-20
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X25-20 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 MIJ20X25-20
Dial in a precise forward end position on-site with the AirTAC MIJ20X25-20, a double-acting round-body mini cylinder featuring a 20mm extend-stroke adjustment window. An external stop screw lets you shorten the forward travel from its 25mm nominal length down to 5mm without swapping parts, while retract remains full. Built with a stainless-steel barrel and rod, it handles mild washdown and corrosion challenges seamlessly.
Delivering 157 N of push force at 0.5 MPa, this ISO 6432 mounting-interface unit yields a safe working load of roughly 94 N and can vertically lift about 8 kg with a 2:1 margin. It uses a 1/8" port and an M8x1.25 male rod thread. Note that this specific SKU lacks a magnet, so it cannot host CMSG, DMSG, or EMSG sensors without moving to the -S variant.
Airtac MIJ Adjustable Cylinder MIJ20X25-20 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X25-20 |
|---|---|
| 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 MIJ20X25-20
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -20 | 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 MIJ20X25-20 Is Used
Diverter Gate Positioning
Fine-tune the extend stop by up to 20mm to perfectly set a diverter flap angle without machining custom spacers, ideal for routing 8 kg cartons on a packaging line.
Staged Parts Ejection
Use the adjustable forward end to push lightweight aluminum brackets out of a die at varying distances, leveraging the 157 N push force to clear the tooling safely.
Clamp Height Compensation
Dial the forward travel down to 5mm to take up material thickness tolerances during light clamping tasks, ensuring consistent contact without over-stroking.
Is the Airtac MIJ Adjustable Cylinder MIJ20X25-20 the Right Cylinder?
When sizing this actuator, check your force margins both ways: the smaller Ø16 bore provides 100.5 N push at 0.5 MPa, while the larger Ø25 bore steps up to 245.3 N. The integrated 20mm stop screw is invaluable for taking up mechanical tolerances or staging feeds, letting one part number cover several intermediate stops. Keep in mind the stop screw merely sets the end position; it is not a mid-stroke lock, and the piston will drift on air loss. For suspended loads, specify an external rod lock or pilot check valve.
This adjustable-stroke design excludes the SDB pivot-block option, but you can utilize LB foot, FA flange, or TC trunnion mounts alongside CA, U, R, and CM back covers. Because this is a non-magnet SKU, position sensing is impossible; choose the -S version if your control system requires CMSG, DMSG, or EMSG switches. Fixed TPU bumper pads decelerate the stroke ends across the 30-800 mm/s speed range.
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 MIJ20X25-20 FAQ
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it yields 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa. This bore size uses a 1/8" air port and an M8x1.25 male rod thread.
An external stop screw shortens the extend stroke by up to 20mm on-site, giving a usable forward range of 5-25mm; retract remains full. The screw only sets the end position and is not a mid-stroke lock. The cylinder drifts on air loss, so use an external rod lock for suspended loads. This non-S SKU also lacks a magnet for sensors.
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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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