Airtac MIC Cushioned Mini Cylinder MIC20X400SU
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC20X400SU is a genuine double acting + cushion round-body mini air cylinder with a Ø20mm bore and 400mm 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
- Stroke400 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 MIC20X400SU
Driving a 400 mm stroke with 157 N of push force at 0.5 MPa, this double-acting stainless steel round-body mini cylinder brings needle-set air cushions to both ends. Tuning the cushions absorbs high-speed end-of-travel shock, protecting your payload while reducing noise far better than a fixed bumper. The Ø20 mm bore uses a 1/8" port and an M8x1.25 male rod thread.
The stainless barrel and rod resist mild corrosion and washdown environments. Because this SKU includes the -S magnet, it is ready for CMSG, DMSG or EMSG position switches. For vertical moves, expect a safe working load around 94 N, meaning it lifts about 8 kg with a 2:1 safety margin. The rear U cover provides a 90-degree mounting orientation for compact machine integration.
Airtac MIC Cushioned Mini Cylinder MIC20X400SU Technical Specifications
| Model | Airtac MIC Cushioned Mini Cylinder MIC20X400SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 400 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 MIC20X400SU
| MIC | ISO 6432 round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×400 | 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 MIC20X400SU Is Used
Package Diverting
Pushes light cartons across a belt at high speed, relying on the dual adjustable cushions to stop the 400 mm stroke smoothly without jarring the contents.
Vertical Lowering
Lowers an 8 kg fixture down a 400 mm path, using the needle-set cushion to decelerate the load gently before it reaches the base.
Bin Sorting
Actuates a routing flap in a washdown-prone dispatch area, where the stainless build holds up against moisture and the U cover mounts flush to the frame.
Is the Airtac MIC Cushioned Mini Cylinder MIC20X400SU the Right Cylinder?
This 20 mm bore provides 131.9 N pull at 0.5 MPa. If you need less force, the smaller 16 mm bore yields 100.5 N push but lacks the adjustable cushion feature. If your load is heavier, stepping up to the 25 mm bore increases push force to 245.3 N. The cushioning here matters most when moving loads quickly over the 400 mm stroke, as the deceleration prevents harsh impacts.
The adjustable cushion only decelerates the piston near the stroke end; it is not a brake. If air pressure drops, the piston will drift, so fit an external rod lock or pilot check valve to hold a load safely. The -S magnet enables sensor tracking, and the ISO 6432 mounting interface ensures standard mini-cylinder bracket compatibility.
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 MIC20X400SU FAQ
This double-acting cylinder pushes with 157 N and pulls with 131.9 N at 0.5 MPa. At 0.7 MPa, push is 219.8 N and pull is 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa, and the air port size is 1/8".
No. The adjustable air cushion only decelerates the piston near the end of its stroke; it is not a lock or brake. If air pressure drops, the piston will drift. To hold a load securely, you must install an external rod lock or a pilot-operated check valve.
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.
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