Airtac MIJ Adjustable Cylinder MIJ20X40-10S
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X40-10S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 40mm 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
- Stroke40 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 MIJ20X40-10S
Trimming the forward end by up to 10 mm on site, the AirTAC MIJ20X40-10S lets you dial in a precise 30 to 40 mm extend position without changing the cylinder. This double-acting round-body mini unit features a stainless-steel barrel and piston rod to resist mild corrosion and washdown environments. It delivers 157 N of push force and 131.9 N of pull force at 0.5 MPa.
Built to the ISO 6432 mounting interface, it drops directly into standard mini brackets and clevises. The integrated -S piston magnet enables CMSG, DMSG, or EMSG position sensing. With a practical safe working load of roughly 94 N (about 60% of the 0.5 MPa push figure), it provides a reliable vertical lift capacity of approximately 8 kg when applying a 2:1 safety margin. Air connects via a 1/8" port.
Airtac MIJ Adjustable Cylinder MIJ20X40-10S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X40-10S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 40 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 MIJ20X40-10S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| -10 | 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 MIJ20X40-10S Is Used
Light Press Fit
Dialing in the exact 10 mm extend stop lets you seat small bearings or pins with the 157 N push force without bottoming out the tooling.
Staged Parts Feed
The settable forward position provides precise 30 to 40 mm strokes to push lightweight 8 kg workpieces onto a conveyor belt at controlled intervals.
Carton Flap Control
Fine-tune the extend end on the fly to tuck varying carton flap heights, using the 1/8" port air supply for responsive pneumatic motion.
Is the Airtac MIJ Adjustable Cylinder MIJ20X40-10S the Right Cylinder?
When sizing this 20 mm bore actuator, compare it against adjacent bores: the smaller MIJ16 yields 100.5 N push at 0.5 MPa, while the larger MIJ25 provides 245.3 N. The 10 mm external stop screw is ideal for absorbing setup tolerances or staging feeds, allowing one part number to cover several intermediate stops. Note that the screw only trims the extend end; retract remains full stroke.
Because this is a double-acting cylinder, it does not hold position on air loss—the piston will drift. The fixed TPU bumper pads decelerate the stroke end but do not act as a mid-stroke lock or brake; use an external rod lock or pilot check valve for held loads. Mounting options include LB foot, FA flange, and TC trunnion (the SDB pivot block is not available 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 MIJ20X40-10S FAQ
This 20 mm bore cylinder uses a 1/8" air port. At 0.5 MPa it provides 157 N push and 131.9 N pull; at 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 10 mm, letting you set a precise forward end position without replacing the cylinder; the retract stroke remains fixed. The -S suffix means it includes a piston magnet for CMSG, DMSG, or EMSG sensors. It features a stainless steel round-body build and fixed TPU bumper pads.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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