Airtac MICJ Adjustable Mini Cylinder MICJ40X400-40S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X400-40S 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 MICJ40X400-40S
Dial in a precise 360-400 mm forward stop on-site with the AirTAC MICJ40X400-40S, a stainless round-body mini cylinder featuring a 40 mm extend adjustment screw. Twin needle-valve air cushions soak up high-speed impact at both ends, letting you set the exact position while controlling shock.
The -S suffix equips the piston with a magnet for CMSG, DMSG, or EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ40X400-40S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X400-40S |
|---|---|
| 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 MICJ40X400-40S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -40 | 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 MICJ40X400-40S Is Used
Heavy Carton Diversion
Pushes heavy cartons at high speed on a packing line, using the 40 mm extend trim to hit the exact lane position while the air cushions absorb the 400 mm stroke shock.
Vertical Flap Folding
Folds thick packaging flaps downward, relying on the 32 kg safe vertical lift capacity and dual end cushions to prevent slamming at the bottom of the 400 mm travel.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X400-40S the Right Cylinder?
The 40 mm extend adjuster and dual cushions excel in fast, settable-position moves, but remember the stop screw only sets the end position—it is not a mid-stroke lock, and the cylinder drifts on air loss. Use an external rod lock or pilot check valve for held loads.
Mount using LB foot, FA flange, or TC trunnion brackets (SDB pivot-block is unavailable on this adjustable variant). The stainless steel construction resists mild washdown corrosion, and the built-in magnet supports 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 MICJ40X400-40S FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 40 mm (usable range 360-400 mm) without affecting the full retract. Needle valves adjust the air cushions at both ends to decelerate the load near stroke end. The -S suffix means it has 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.
Related AirTAC MICJ Cylinders
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