
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X200-30 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 200mm 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 MICJ40X200-30, a double-acting round-body mini cylinder featuring a 30 mm adjustable extend stroke. An external stop screw lets you shorten the forward end position down to 170 mm without swapping hardware, while a needle-set variable air cushion at both ends absorbs high-speed impact. The stainless-steel barrel and Ø16 mm piston rod shrug off mild corrosion and washdown environments.
It operates at speeds of 30-800 mm/s and uses a 1/4" port. Note this is a non-ISO-6432 size, and because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG sensors.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X200-30 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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. |
| ×200 | 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.
Relies on the adjustable air cushion to softly decelerate a 30 kg tooling head near the stroke end, while the stop screw sets the precise 180 mm working depth.
Halts inbound pallets in a washdown zone; the stainless construction resists moisture while the 1/4" port delivers the volume needed for rapid 800 mm/s cycling.
The adjustable 30 mm extend stop paired with the dual-end air cushion is ideal for fast moves where you must tune the final position and decelerate a heavy mass smoothly.
Keep in mind the stop screw sets the end position but acts as neither a mid-stroke lock nor a brake. If the air supply drops, the piston will drift. Use an external rod lock or pilot-operated check valve to hold a suspended load. For mounting, select LB foot, FA flange or TC trunnion (SDB pivot-block is not offered on this adjustable variant).
Quick checklist
This Ø40 mm double-acting cylinder uses a 1/4" port. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm (usable range 170-200 mm), while needle valves tune the variable air cushion at both ends to absorb shock. The cushion only decelerates near the end and does not lock the load. This SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors; you need the -S variant for that.
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