
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X30-10 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 30mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in a precise forward stop without swapping hardware using the AirTAC MICJ40X30-10. This round-body stainless steel mini cylinder features an external screw that shortens the extend stroke by up to 10 mm on site, giving you a usable forward range of 20 to 30 mm. At the same time, a needle-set adjustable air cushion at both ends absorbs high-speed shock, letting you set the position and control the impact simultaneously.
The stainless barrel and piston rod resist mild corrosion and washdown environments. Because this specific SKU lacks the -S magnet option, it cannot accept CMSG, DMSG, or EMSG sensors. It is a non-ISO-6432 size, relying purely on its robust riveted construction rather than a standard mini mounting interface.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X30-10 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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.
| 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).
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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.
Handles high-speed lane shifting of dense packaged goods, relying on the adjustable air cushion to decelerate the 40 mm piston smoothly at the end of travel.
Applies consistent downward pressure on large cartons, where the stainless construction resists moisture and the forward stroke is fine-tuned on-site for varying box heights.
When sizing this 40 mm bore, moving down to a MICJ32 drops the 0.5 MPa push force to 402.2 N, while no larger MICJ bore exists above it. This makes the MICJ40X30-10 the top choice in the family for high-force, fast set-position moves where you need to trim the extend end by up to 10 mm. The adjustable stop screw sets the forward end position but is not a mid-stroke lock; the cylinder will drift on air loss, so add an external rod lock or pilot check valve for held loads.
Mounting options include LB foot, FA flange, and TC trunnion, but the SDB pivot-block is not available on this adjustable-stroke variant. Back covers include CA, U, R, and CM. Remember that without the -S magnet, magnetic sensing is impossible on this unit.
Quick checklist
At 0.7 MPa, push increases to 879.6 N and pull to 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 10 mm, allowing a usable forward range of 20 to 30 mm, while the needle-set adjustable air cushion at both ends absorbs high-speed impact. This cylinder does not hold position on air loss and the cushion is not a brake; use an external rod lock for suspended loads. Note that this non-S SKU cannot take magnetic sensors.
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