Airtac MIC Cushioned Mini Cylinder MIC20X55SU
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X55SU is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm bore and 55mm 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
- Stroke55 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 MIC20X55SU
Handling light-duty actuation with precision, the AirTAC MIC20X55SU is a double-acting round-body mini cylinder built with a stainless-steel barrel and rod for mild washdown resistance. It conforms to the ISO 6432 mounting interface for bores Ø16-Ø25, allowing it to drop directly into standard mini brackets and clevises. The integrated piston magnet (-S) supports CMSG, DMSG and EMSG position switches.
A defining feature of this 20 mm bore unit is the adjustable air cushion at both ends, which uses a needle valve to absorb high-speed end-of-stroke shock, reducing noise and protecting the load better than a fixed bumper. Operating on a 1/8" port with an M8x1.25 male rod thread, it generates 157 N of push force at 0.5 MPa. This translates to a safe working load of roughly 94 N, or the ability to lift about 8 kg vertically with a 2:1 safety margin.
Airtac MIC Cushioned Mini Cylinder MIC20X55SU Technical Specifications
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X55SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 55 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 MIC20X55SU
| MIC | ISO 6432 round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×55 | 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 MIC20X55SU Is Used
Light Part Diverter
Ideal for routing small plastic or cardboard components on a high-speed packaging line, using the adjustable cushion to silently stop the 55 mm stroke without jarring the product.
Small Parts Ejector
Pushes lightweight machined parts from a fixture at speed; the 157 N push force at 0.5 MPa easily clears the part while the needle-set cushion protects the ejector mechanism from shock.
Vertical Lift Gate
Lowers a light pneumatic gate smoothly using the 1/8" ported chamber, relying on the bottom air cushion to prevent a hard slam at the end of the downward stroke.
Is the Airtac MIC Cushioned Mini Cylinder MIC20X55SU the Right Cylinder?
When sizing this 157 N (0.5 MPa) unit, stepping down to the MIC16 drops the push force to 100.5 N, while moving up to the MIC25 increases it to 245.3 N. The adjustable air cushion is essential if your cycle speed approaches the 800 mm/s limit or you are moving a heavy payload, as it lets you tune the deceleration to prevent impact damage. The U-style 90-degree rear cover provides flexible mounting orientation for tight spaces.
Because this is a double-acting cylinder, it will not hold a load if air pressure drops or the valve is centered, as the piston will drift and the cushion only decelerates near stroke end rather than acting as a brake. For suspended loads, specify an external rod lock or pilot-operated check valve. Position sensing is enabled by the -S magnet, allowing CMSG, DMSG or EMSG switches to track the 55 mm stroke.
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 MIC20X55SU FAQ
This 20 mm bore cylinder features a 1/8" port and an Ø8 mm rod. It generates 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 force of 32 kgf at 1.0 MPa.
No, the air cushion only decelerates the piston near the stroke end and does not act as a brake, so the load will drift on air loss; use a pilot check valve for holding. The -S suffix means it has a built-in magnet ready for CMSG, DMSG or EMSG switches.
Authorized Export Seller
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.
Request a Quote for Airtac MIC Cushioned Mini Cylinder MIC20X55SU
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