
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ40X60-30S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 60mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Cutting high-speed impact down to size, this AirTAC round-body mini cylinder pairs a needle-set adjustable air cushion at both ends with a 30 mm external stop screw that shortens the extend end position on-site. The stainless-steel barrel and Ø16 mm piston rod shrug off mild corrosion and washdown, while the 1/4" port feeds a robust 40 mm bore. Because this SKU includes the -S magnet, it is ready for CMSG, DMSG, or EMSG position switches.
With a nominal 60 mm stroke, the forward travel can be dialed back to a 30 mm minimum without swapping hardware. Delivering 628.3 N of push force at 0.5 MPa, it easily handles a safe working load of roughly 377 N or lifts about 32 kg vertically with a 2:1 margin. Operating pressure spans 0.15 to 1.0 MPa, and the male M12x1.25 rod thread secures your tooling firmly.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X60-30S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 mm |
| Acting type | Double acting, 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×60 | Stroke length in mm. |
| -30 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Dial in the 30 mm extend stop to clamp 32 kg assemblies precisely, letting the dual air cushions absorb the high-speed impact without slamming the tooling.
Use the 628.3 N push force to halt heavy pallets on a line, tuning the needle cushion to bring them to a smooth stop at the end of the 60 mm stroke.
Lift roughly 32 kg of inventory using the 0.5 MPa thrust, relying on the external screw to set the exact raise height while the -S magnet triggers the DMSG sensor.
When sizing this 40 mm bore, stepping down to a 32 mm variant drops the 0.5 MPa push force to 402.2 N, whereas no larger standard MICJ bore exists above this. The external stop screw and dual cushions shine in fast set-position moves where you must tune the forward landing and absorb shock without adding external shock absorbers. Mount using LB foot, FA flange, or TC trunnion brackets, as the SDB pivot-block is not offered on this adjustable-stroke build.
Remember that the stop screw sets the end position but acts purely as a forward stop, not a mid-stroke lock. If gravity or air loss could cause the piston to drift, install an external rod lock or pilot-operated check valve to hold the load safely.
Quick checklist
This 40 mm bore cylinder uses a 1/4" air port and generates 628.3 N push and 527.8 N pull at 0.5 MPa, or 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
The external screw shortens the extend stroke by up to 30 mm (usable forward travel 30-60 mm), and the needle-set air cushions at both ends decelerate the piston near stroke ends. The -S magnet enables CMSG/DMSG/EMSG sensors, but the cushion and screw are not brakes; use an external rod lock to hold a load on air loss.
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