Airtac MIC Cushioned Mini Cylinder MIC20X125SU
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X125SU is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm bore and 125mm 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.
- BoreØ20 mm
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MIC Cushioned Mini Cylinder MIC20X125SU
Tame high-speed end-of-stroke shock with the AirTAC MIC20X125SU, a double-acting round-body mini cylinder built with a stainless-steel barrel and rod for mild washdown resistance. A variable air cushion at both ends lets you dial in the deceleration needle to protect payloads, a major upgrade over fixed bumper designs. Driven by a 1/8 inch port and an 8 mm piston rod, it pushes with 157 N and pulls with 131.9 N at 0.5 MPa. This yields a safe working load of roughly 94 N, lifting about 8 kg vertically with a 2:1 margin.
Because the 20 mm bore falls inside the Ø8-Ø25 range, it uses the standard ISO 6432 mounting interface to drop into existing mini-cylinder brackets. The U back cover provides a 90-degree port and mounting orientation for tight layouts. This SKU includes the -S piston magnet, meaning it is ready to accept CMSG, DMSG, or EMSG reed and electronic sensors for position confirmation.
Airtac MIC Cushioned Mini Cylinder MIC20X125SU Technical Specifications
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X125SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 125 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.
Theoretical Output Force (Ø20mm)
| 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.
Model Code: Airtac MIC Cushioned Mini Cylinder MIC20X125SU
| MIC | ISO 6432 round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×125 | 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.
Where the Airtac MIC Cushioned Mini Cylinder MIC20X125SU Is Used
Package Diverting
Snaps a lightweight routing gate at speed on a packaging line, using the adjustable cushion to stop the 125 mm travel softly without jarring the mechanism.
Small Part Ejection
Pushes machined components out of a fixture with 157 N of force at 0.5 MPa, relying on the needle-set cushion to prevent bounce-back.
Bin Lid Actuation
Opens and closes a lightly loaded hopper lid where the stainless rod resists mild humidity and the 8 kg vertical lift capacity is sufficient.
Is the Airtac MIC Cushioned Mini Cylinder MIC20X125SU the Right Cylinder?
For a 125 mm stroke moving moderate loads at high speed, this 20 mm bore hits a sweet spot. If you need less force, dropping down requires switching to the MI bumper-only series since MIC cushioning begins at Ø16. If your payload exceeds the 157 N push at 0.5 MPa, step up to the Ø25 MIC, which pushes 245.3 N. The adjustable cushion matters most above 400 mm/s where impact noise becomes an issue.
Remember that the air cushion only decelerates the piston near the stroke end; it is not a brake. If air pressure drops, the piston drifts, so fit an external rod lock or pilot check valve for suspended loads. Along with the U back cover, you can mount this cylinder using LB foot, FA flange, SDB pivot, or TC trunnion brackets.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MIC Cushioned Mini Cylinder MIC20X125SU FAQ
This double-acting cylinder uses a 1/8 inch port and an M8x1.25 male rod thread. At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa it pushes 219.8 N and pulls 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. The variable air cushion at both ends only decelerates the piston near stroke end to reduce shock; it does not lock or hold the load on air loss, so use a pilot check valve for vertical loads.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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