Airtac MIC Cushioned Mini Cylinder MIC25X400SU
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC25X400SU is a genuine double acting + cushion round-body mini air cylinder with a Ø25mm 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.
- BoreØ25 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM10×1.25
- 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 MIC25X400SU
Delivering 245.3 N of push force at 0.5 MPa, the AirTAC MIC25X400SU is a double-acting round-body mini cylinder built for demanding long-stroke tasks. Its stainless-steel barrel and Ø10 mm piston rod provide mild corrosion resistance for washdown environments. The integrated piston magnet (-S) supports CMSG, DMSG, and EMSG switches for precise end-position detection, while the U back cover provides a 90-degree mounting and port orientation. A 1/8" port supplies the air.
The defining feature of this ISO 6432 mounting-interface unit is the adjustable air cushion at both ends. By turning a needle valve, you tune the deceleration to soak up high-speed shock over the 400 mm travel, protecting the load and cutting noise versus a fixed bumper. For practical sizing, expect a safe working load of roughly 147 N, meaning it lifts about 12.5 kg vertically with a 2:1 safety margin.
Airtac MIC Cushioned Mini Cylinder MIC25X400SU Technical Specifications
| Model | Airtac MIC Cushioned Mini Cylinder MIC25X400SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 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 MIC25X400SU
| MIC | ISO 6432 round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | 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 MIC25X400SU Is Used
Package Diverting
Uses the 245.3 N thrust to push heavy cartons off a high-speed belt, relying on the adjustable cushion to prevent slamming at the 400 mm stroke end.
Vertical Lift Gate
Raises a lightweight access panel, safely lifting about 12.5 kg while the stainless build resists humid warehouse air.
Component Ejection
Ejects machined parts from a fixture, using the needle-set deceleration to softly stop the load without damaging delicate surfaces.
Is the Airtac MIC Cushioned Mini Cylinder MIC25X400SU the Right Cylinder?
When sizing this 25 mm bore, stepping down to a MIC20 bore drops the 0.5 MPa push force to 157 N, whereas moving up to a MIC32 bore raises it to 402.2 N. The adjustable cushion is essential here: at high speeds over the 400 mm stroke, the needle-set deceleration prevents harsh end-of-travel impacts. Note that the cushion only slows the piston near the stroke end; it does not act as a brake or lock. If the application must hold a load vertically during air loss, add an external rod lock or pilot check valve.
Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets. Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG sensors for position feedback.
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 MIC25X400SU FAQ
This double-acting cylinder has a 25 mm bore, a 400 mm stroke, and a 1/8" port. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, or 343.4 N push and 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
No, the adjustable air cushion only decelerates the piston near the end of the stroke and is not a brake or lock. The piston will drift on air loss. To hold a load, use an external rod lock or pilot check valve. The -S magnet enables CMSG/DMSG/EMSG sensors.
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 MIC25X400SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.