Airtac MIJ Adjustable Cylinder MIJ40X500-20
The AirTAC MIJ Adjustable Cylinder MIJ40X500-20 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 MIJ40X500-20
Dial in a precise forward end position on-site with the AirTAC MIJ40X500-20, 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 500mm nominal length down to 480mm without swapping parts, while retract remains full. Built with a stainless-steel barrel and Ø16 piston rod, it handles mild corrosion and washdown environments.
It runs on a 1/4" port with an M12x1.25 male rod thread. Note this SKU lacks a magnet and cannot accept position sensors; the -S variant is required for CMSG/DMSG/EMSG switches.
Airtac MIJ Adjustable Cylinder MIJ40X500-20 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X500-20 |
|---|---|
| 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 MIJ40X500-20
| 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 MIJ40X500-20 Is Used
Pallet Transfer Diverter
Pushes heavy pallets onto a secondary line, using the 20mm stroke adjustment to fine-tune the diverter angle for varying pallet widths without changing hardware.
Vertical Press Module
Provides a 32kg press force for light assembly tasks, allowing operators to trim the 500mm extend stroke by 20mm to set precise downward travel limits.
Is the Airtac MIJ Adjustable Cylinder MIJ40X500-20 the Right Cylinder?
If your application exceeds those limits, there is no larger MIJ bore available. The 20mm external adjuster is ideal for taking up mechanical tolerances during setup or covering multiple stop positions with one part number.
Mount using LB foot, FA flange, or TC trunnion brackets (the SDB pivot block is not available on this adjustable variant). Remember that the stop screw sets the end position but acts purely as a bumper stop, not a mid-stroke lock; the piston will drift on air loss. For load holding, install an external rod lock or pilot 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 MIJ Adjustable Cylinder MIJ40X500-20 FAQ
The theoretical maximum force is 128.1kgf at 1.0MPa.
An external screw shortens the extend stroke by up to 20mm on-site, yielding a usable 480-500mm forward travel, while retract remains full. This SKU has no magnet and cannot take sensors; you need the -S variant for CMSG/DMSG/EMSG switches.
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.
Request a Quote for Airtac MIJ Adjustable Cylinder MIJ40X500-20
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