Airtac MI25~40 Stainless Steel Mini Cylinder MI25X20SUTC
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X20SUTC is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 20mm 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
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- 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 MI25~40 Stainless Steel Mini Cylinder MI25X20SUTC
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust actuation in tight spaces. The Ø25 bore conforms to ISO 6432 mounting dimensions, dropping seamlessly into standard mini-cylinder brackets and clevises. Its 20 mm stroke and riveted construction yield a highly compact footprint, while the fixed TPU bumper pads absorb end-of-stroke impact without requiring manual adjustment.
Equipped with a piston magnet (-S), the unit supports CMSG, DMSG and EMSG reed or electronic switches for position sensing. Plan for roughly 147 N of actual work at 0.5 MPa to maintain a safe margin. Alternatively, it lifts about 12.5 kg vertically when applying a 2:1 safety factor to the 0.5 MPa output. The 1/8" port and M10x1.25 male rod thread ensure solid pneumatic and mechanical integration.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X20SUTC Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X20SUTC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| 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 | Fixed TPU bumper pads |
| 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 MI25~40 Stainless Steel Mini Cylinder MI25X20SUTC
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×20 | 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 MI25~40 Stainless Steel Mini Cylinder MI25X20SUTC Is Used
Clamp Actuation
Drives short-stroke clamping jaws on machining fixtures, utilizing the 245.3 N push force to secure metal parts firmly during milling operations.
Diverter Gate
Pivots a packagesorting diverter arm via the TC trunnion mount, rapidly redirecting cartons on a high-speed packaging conveyor line.
Seal Press
Applies precise downward pressure on heat-sealing bars, using the 20 mm stroke to close pouches without crushing the contents.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X20SUTC the Right Cylinder?
When sizing this 20 mm stroke actuator, compare its 245.3 N push force at 0.5 MPa against the adjacent bores: the Ø20 generates 157.0 N, and the larger Ø32 provides 402.2 N. The included TC trunnion mount pairs with the U-style 90-degree rear cover to handle pivoting loads, though a plain cylinder drifts if air pressure drops, so add an external rod lock or pilot check valve for fail-safe load holding. Because the 20 mm stroke is very short, side-load risks are minimal, but ensure the front and rear pivots align perfectly to prevent rod binding.
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 MI25~40 Stainless Steel Mini Cylinder MI25X20SUTC FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N. At 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port size is 1/8".
Yes, the -S suffix denotes a built-in piston magnet compatible with CMSG, DMSG and EMSG switches. For impact absorption, it relies on fixed TPU bumper pads that decelerate the piston at the stroke ends; it does not feature an adjustable air cushion.
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.
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Most inquiries answered within 7-8 hours.
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