Airtac MIJ Adjustable Cylinder MIJ40X20-10S
The AirTAC MIJ Adjustable Cylinder MIJ40X20-10S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 20mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke20 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 MIJ40X20-10S
Dial in a precise forward end position on-site with the AirTAC MIJ40X20-10S, a round-body stainless mini cylinder featuring a 10 mm external adjustment screw that shortens the extend stroke from its 20 mm nominal maximum. Because the adjuster trims only the forward end, you gain setup flexibility and tolerance take-up across changeover jobs without swapping parts. Retract travel remains full length. The built-in piston magnet (-S) directly supports CMSG, DMSG, and EMSG switches for electronic or reed position sensing.
Constructed with a riveted stainless-steel barrel and a Ø16 mm piston rod, this double-acting unit resists mild corrosion and washdown environments while delivering substantial force. It operates at 30-800 mm/s, relies on fixed TPU bumper pads to decelerate the stroke end, and uses a 1/4" port with an M12x1.25 male rod thread.
Airtac MIJ Adjustable Cylinder MIJ40X20-10S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ40X20-10S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 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 MIJ40X20-10S
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×20 | 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 (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MIJ Adjustable Cylinder MIJ40X20-10S Is Used
Heavy Clamping Press
Apply 628.3 N of clamping force at 0.5 MPa and use the 10 mm stop screw to dial in the exact material thickness, preventing over-travel on varying workpieces.
Staged Divert Gate
Actuate a routing gate on a washdown line; the stainless build resists moisture while the adjustable forward stop accommodates different package widths on the fly.
Is the Airtac MIJ Adjustable Cylinder MIJ40X20-10S the Right Cylinder?
Since there is no larger standard MIJ bore, verify that 879.6 N at 0.7 MPa covers your peak requirement. The 10 mm external stop screw is ideal for fine-tuning the extend position during initial setup or absorbing mechanical tolerances, but remember it only sets the end stop. It is not a mid-stroke lock, and the cylinder will drift on air loss, so add an external rod lock or pilot check valve if you need to hold a suspended load.
For mounting, you can utilize LB foot, FA flange, or TC trunnion brackets, along with CA, U, R, or CM back covers. The SDB pivot block is not available on this adjustable-stroke variant. The included -S magnet enables CMSG, DMSG, and EMSG sensors, allowing you to confirm piston arrival at the adjusted forward position.
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 MIJ40X20-10S FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 10 mm on-site, giving you a usable forward range of 10-20 mm while retract remains full stroke. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, and EMSG sensors; the unit uses fixed TPU bumper pads, not an adjustable air cushion.
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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