
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X300-75 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 300mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
Trim the forward stop by up to 75 mm on site without swapping hardware using this AirTAC round-body mini cylinder. The external screw adjusts the extend end position from 225 to 300 mm, while a needle-set air cushion at both ends soaks up high-speed shock. Built with a stainless-steel barrel and rod, it handles mild washdown environments and conforms to the ISO 6432 mounting interface for standard mini brackets.
Driven by a 1/8" port and an 8 mm rod, the 20 mm bore generates 157 N of push force at 0.5 MPa. That translates to a safe working load of roughly 94 N, or enough to vertically lift about 8 kg with a 2:1 safety margin. Note this specific SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X300-75 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 300 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| -75 | 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 225 to 300 mm extend position to gate parts on a conveyor, using the 94 N safe working load to push diverts without hard mechanical crashes.
Leverage the dual adjustable air cushions to absorb impact at 800 mm/s while the external screw sets the exact 300 mm forward stroke for light metal bending.
Lift an 8 kg pallet flap using the 157 N push force, relying on the external stop nut to fix the open height precisely without needing complex linkage.
When sizing this actuator, step down to the 16 mm bore for lighter 100 N push tasks, or move up to the 25 mm bore if you need 245 N of force. The 75 mm extend trim shines in fast set-position moves where you must dial in a precise forward stop under load. For vertical loads, remember the piston drifts on air loss, so add an external rod lock or pilot check valve.
Mount using LB foot, FA flange or TC trunnion brackets, but note the SDB pivot block is not offered on this adjustable variant. If your sequence requires position sensing, select the -S magnet version to enable switches.
Quick checklist
This 20 mm bore cylinder uses a 1/8" port and an M8x1.25 male rod thread. It delivers 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 75 mm on site, giving a usable 225 to 300 mm forward range. Needle valves adjust the air cushions at both ends to decelerate the piston at high speed, but this only dampens impact near the end of travel, it does not lock or hold the load.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.