The AirTAC MICJ Adjustable Mini Cylinder MICJ40X30-30 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 on-site with the AirTAC MICJ40X30-30, a round-body stainless-steel mini cylinder featuring a 30 mm adjustable extend stroke. An external screw trims the extend end position down from the nominal 30 mm to zero without swapping cylinders, while a needle-set variable air cushion at both ends soaks up high-speed shock.
Built with a stainless barrel and rod for mild corrosion and washdown resistance, this non-ISO-6432 unit is designed for heavier mini-automation tasks. The adjustable cushion only decelerates the piston near the stroke end; it is not a mid-stroke lock or brake. Note that this specific SKU lacks a magnet and cannot accept position sensors.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X30-30 |
|---|---|
| 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. |
| -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 (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Act as a robust lane diverter for 32 kg product loads, using the adjustable forward screw to fine-tune the blocking position without changing the cylinder mount.
Fold heavy corrugated flaps at high cycle speeds, letting the dual adjustable air cushions decelerate the 16 mm rod smoothly to prevent crushing the package.
The 30 mm extend adjuster is ideal for fast set-position moves where you need to tune the forward endpoint on the fly. Remember that the stop screw sets the end position but does not hold the load on air loss; the piston will drift if pressure drops. For suspended loads, install an external rod lock or pilot check valve.
Mount this actuator using LB foot, FA flange, or TC trunnion brackets, plus CA, U, R, or CM back covers (SDB pivot-block is not available on this adjustable variant). Because this SKU has no internal magnet, it cannot host CMSG, DMSG, or EMSG sensors; choose an -S variant if you require position feedback.
Quick checklist
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm on-site, while needle valves adjust the air cushions at both ends to absorb high-speed shock. The cushion only decelerates near the end of travel and does not lock or hold the load on air loss; use an external rod lock for suspended loads. This SKU has no magnet, so it cannot accept sensors.
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