Airtac MIJ Adjustable Cylinder MIJ40X500-20S
The AirTAC MIJ Adjustable Cylinder MIJ40X500-20S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 500mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke500 mm
- Port size1/4"
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM12×1.25
- 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 MIJ40X500-20S
Dial in a precise forward end position on-site with the AirTAC MIJ40X500-20S, a round-body stainless mini cylinder built for heavy-duty tasks. An external stop screw trims the extend stroke by up to 20 mm, letting you cover multiple stop distances with a single part number while the retract stroke remains full. The stainless-steel barrel and piston rod resist mild corrosion and washdown environments.
It features a 1/4" port, an M12x1.25 male rod thread, and fixed TPU bumper pads to decelerate the stroke end. Because this is a -S SKU, it includes a piston magnet for CMSG, DMSG, or EMSG position sensing.
Airtac MIJ Adjustable Cylinder MIJ40X500-20S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X500-20S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac MIJ Adjustable Cylinder MIJ40X500-20S
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MIJ Adjustable Cylinder MIJ40X500-20S Is Used
Washdown Component Pusher
Leverage the stainless steel construction to push heavy metal components into a washdown station, dialing in the exact forward position without changing the cylinder.
Is the Airtac MIJ Adjustable Cylinder MIJ40X500-20S the Right Cylinder?
Since the Ø40 is the largest available round-body mini size, moving higher requires a different frame. The 20 mm external stop screw is invaluable for taking up mechanical tolerances during setup or accommodating changeover jobs without swapping cylinders.
Remember that the stop screw only sets the forward end position; it is not a mid-stroke lock. If your application must hold a load on air loss, add an external rod lock or pilot check valve, as the piston will drift. Mounting options include LB foot, FA flange, and TC trunnion (SDB is not offered on this variant). The -S magnet enables reed or electronic sensors.
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 MIJ40X500-20S FAQ
At 0.7 MPa, push increases to 879.6 N and pull to 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. It uses a 1/4" air port and a Ø16 mm piston rod with an M12x1.25 male thread.
An external stop screw shortens the extend stroke by up to 20 mm on-site, giving a usable forward range of 480-500 mm without altering the full retract stroke. The screw sets the end position but does not lock the piston mid-stroke. The -S suffix means a magnet is built into the piston, allowing CMSG, DMSG, or EMSG sensors to detect position.
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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