Airtac MICJ Adjustable Mini Cylinder MICJ40X400-75S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X400-75S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 400mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke400 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 MICJ40X400-75S
Its external stop screw trims the extend end by up to 75 mm on-site, letting you dial in the forward position from 325 to 400 mm without swapping units. The adjustable air cushion at both ends uses a needle valve to absorb high-speed impact, protecting tooling and workpieces.
The 1/4" port and M12x1.25 male rod thread suit standard pneumatic circuits. The stainless barrel and rod resist mild corrosion and washdown exposure. With the -S magnet, it accepts CMSG, DMSG, or EMSG sensors for reliable position feedback. At 0.7 MPa, push force rises to 879.6 N, and theoretical maximum reaches 128.1 kgf at 1.0 MPa.
Airtac MICJ Adjustable Mini Cylinder MICJ40X400-75S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X400-75S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 MICJ40X400-75S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 MICJ40X400-75S Is Used
Fixture Positioning
Set the extend stop to 325 mm for a quick-change fixture stop, then fine-tune the screw to 400 mm for a second setup.
Case Ejector
Eject packed cases onto a conveyor with a 527.8 N pull. Adjust the extend stroke to match varying case depths, while the cushion prevents hard stops that could damage contents.
High-Speed Sorting
Divert parts at up to 800 mm/s. The adjustable cushion at both ends decelerates the 16 mm rod smoothly, reducing shock and noise in a continuous sorting operation.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X400-75S the Right Cylinder?
The adjustable stop and dual cushions suit fast, set-position moves where you must control both the endpoint and the impact. Note that the stop screw sets the end position only-it is not a mid-stroke lock. For holding a load on air loss, add an external rod lock or pilot-operated check valve. The -S magnet enables CMSG/DMSG/EMSG sensors; the SDB pivot block is not available on this adjustable-stroke variant.
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 MICJ40X400-75S FAQ
At 0.5 MPa, push force is 628.3 N and pull is 527.8 N. At 0.7 MPa, push is 879.6 N and pull is 738.9 N. Theoretical maximum force is 128.1 kgf at 1.0 MPa.
The external stop screw shortens the extend end by up to 75 mm, setting the forward position. The adjustable air cushion at both ends uses a needle to control deceleration near stroke end. The screw sets position; the cushion controls impact-neither acts as a mid-stroke lock. The -S magnet allows CMSG/DMSG/EMSG sensor mounting.
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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