
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X155SCA is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm bore and 155mm 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.
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless steel round-body mini cylinder handles mid-range automation tasks with precision. The Ø20 bore uses a 1/8 inch port and an M8x1.25 male rod thread. Because it carries the -S suffix, a built-in piston magnet enables position sensing with CMSG, DMSG, or EMSG switches. The CA rear cover provides a pivot clevis mount for articulating linkages.
A defining feature of the MIC series is the adjustable air cushion at both ends. Rather than slamming into a fixed bumper, a needle valve lets you dial in the end-of-stroke deceleration to absorb shock at high cycling speeds. The stainless barrel and rod resist mild corrosion and washdown environments. For vertical lifting, the 131.9 N pull force at 0.5 MPa lifts about 8 kg safely with a 2:1 margin.
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X155SCA |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 155 mm |
| Acting type | Double acting + 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.
| MIC | ISO 6432 round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×155 | Stroke length in mm. |
| -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.
Uses the 157 N push force to deflect light cartons on a high-speed sorting line, relying on the adjustable cushion to stop the rod smoothly without banging.
Articulates via the CA pivot clevis to fold cardboard flaps on a packaging machine, where the stainless build resists dusty debris and washdown.
Cycles at up to 800 mm/s to push molded parts out of a press, using the -S magnet and DMSG switch to confirm ejection completion.
When sizing this 155 mm stroke unit, compare it against the adjacent bores: the smaller MIC16 offers 100.5 N push, while the larger MIC25 provides 245.3 N at 0.5 MPa. Choose this Ø20 model when your application requires roughly 94 N of safe working load, calculated at 60% of the 0.5 MPa push figure. The adjustable cushion is essential if you are moving loads at high speeds and need to minimize impact noise without external shock absorbers.
For mounting flexibility beyond the CA pivot clevis, you can utilize LB foot, FA flange, or TC trunnion brackets. Note that the air cushion only decelerates the piston near the stroke end; it does not lock or hold the load. If air pressure drops, the rod will drift, so add an external rod lock or pilot check valve for fail-safe position holding.
Quick checklist
This double-acting cylinder features a 1/8 inch port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
No. The adjustable air cushion only decelerates the piston near the stroke end and is not a brake. If air is lost, the rod will drift. You must use an external rod lock or pilot check valve to hold a vertical load.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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