Airtac MICJ Adjustable Mini Cylinder MICJ40X250-75S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X250-75S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 250mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke250 mm
- Port size1/4"
- Acting typeDouble acting, double rod, adjustable stroke + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
- 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 MICJ Adjustable Mini Cylinder MICJ40X250-75S
Dial in a precise forward stop on-site with the AirTAC MICJ40X250-75S, a double-acting round-body stainless mini cylinder. An external screw trims the extend stroke by up to 75 mm (usable forward range 175-250 mm), while a needle-set adjustable air cushion at both ends soaks up high-speed shock.
Built with a riveted stainless-steel barrel and rod, this unit resists mild corrosion and washdown environments. The -S suffix equips the piston with a magnet for CMSG, DMSG or EMSG sensors. Note that Ø40 is a non-ISO-6432 size, and the cushion only decelerates near the stroke end—it is not a mid-stroke lock.
Airtac MICJ Adjustable Mini Cylinder MICJ40X250-75S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X250-75S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting, double rod, adjustable stroke + cushion |
| 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 | Variable air cushion, both ends |
| 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 MICJ Adjustable Mini Cylinder MICJ40X250-75S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -75 | 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 MICJ Adjustable Mini Cylinder MICJ40X250-75S Is Used
Case Flap Folder
Folds large carton flaps at speed, using the 32 kg safe vertical lift capacity while the adjustable forward stop ensures consistent folding depth without crashing.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X250-75S the Right Cylinder?
At 0.5 MPa this Ø40 bore pushes 628.3 N and pulls 527.8 N. If you need less force, the smaller Ø32 bore pushes 402.2 N; there is no larger MICJ bore. The adjustable stop plus dual air cushions excel in fast set-position moves where you must tune the impact without swapping cylinders. Mount via LB foot, FA flange or TC trunnion (SDB pivot-block is not available on this adjustable variant).
The external screw sets the end position but does not hold the load on air loss—the piston will drift. For a held load, install an external rod lock or pilot-operated check valve. The built-in magnet (-S) supports CMSG/DMSG/EMSG switches for position sensing.
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 MICJ Adjustable Mini Cylinder MICJ40X250-75S FAQ
This double-acting cylinder uses a 1/4" port. At 0.5 MPa it pushes 628.3 N and pulls 527.8 N. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 75 mm (retract remains full). A needle valve adjusts the air cushion at both ends to decelerate the piston near stroke end, though it is not a mid-stroke lock. The -S indicates a built-in magnet for CMSG, DMSG or EMSG sensors.
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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