Airtac MIJ Adjustable Cylinder MIJ40X100-20S
The AirTAC MIJ Adjustable Cylinder MIJ40X100-20S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke100 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 MIJ40X100-20S
Dial in a precise forward end position on-site with the AirTAC MIJ40X100-20S, a round-body stainless steel mini cylinder featuring a 20 mm extend-stroke adjustment window. Rather than swapping components to hit a new stop, an external screw trims the forward travel down from the 100 mm nominal maximum, while the retract stroke remains full. This on-site tunability makes it highly effective for taking up mechanical tolerances or covering multiple feed lengths with a single part number.
Built with a riveted stainless-steel barrel and a Ø16 mm rod, this double-acting unit resists mild corrosion and washdown environments. The 1/4" port and M12x1.25 male rod thread handle robust air flows and mounting loads. Because this is a -S SKU, the built-in piston magnet supports CMSG, DMSG, and EMSG position switches.
Airtac MIJ Adjustable Cylinder MIJ40X100-20S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X100-20S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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 MIJ40X100-20S
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 MIJ40X100-20S Is Used
Variable Length Diverter
Set the forward reach on-site to deflect varying carton sizes on a line, using the external screw to dial in the exact stopping point.
Is the Airtac MIJ Adjustable Cylinder MIJ40X100-20S the Right Cylinder?
The 20 mm external stop screw is ideal for changeover jobs where you need to tune the extend end without machining new hard stops. Remember that the stop screw sets the end position but is not a mid-stroke lock; the piston will drift on air loss, so fit an external rod lock or pilot check valve for held loads. Mount via LB foot, FA flange, or TC trunnion (SDB pivot-block is unavailable on this adjustable variant), and rely on the fixed TPU bumper pads to decelerate the stroke end.
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 MIJ40X100-20S FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 20 mm on-site, allowing usable forward travel between 80 and 100 mm; the retract stroke remains full. The included -S magnet enables CMSG, DMSG, or EMSG sensors for position detection.
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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