Airtac MI25~40 Stainless Steel Mini Cylinder MI25X150SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X150SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 150mm 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
- Stroke150 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 MI25X150SU
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust linear actuation. The Ø25 bore conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for easy design integration. Its riveted stainless barrel and rod resist mild corrosion, offering a real advantage over painted alternatives in damp or washdown environments. A built-in piston magnet (-S) supports CMSG, DMSG, and EMSG reed or electronic switches for position sensing.
Equipped with fixed TPU bumper pads to decelerate the stroke end, the unit operates at 30-800 mm/s. With a 1/8" port and a 150 mm stroke, it yields a practical safe working load of roughly 147 N. For vertical lifting, plan to hoist about 12.5 kg to maintain a safe 2:1 margin. The rear U cover provides a 90-degree port orientation, simplifying air routing in tight machinery layouts.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X150SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X150SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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 MI25X150SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | 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 MI25X150SU Is Used
Package Diverter Gate
Actuates routing flaps on packaging lines, using the 245.3 N push force to deflect heavy cartons reliably at speed.
Filler Nozzle Lift
Raises and lowers filling nozzles with precise 150 mm travel, where the stainless build withstands daily washdown chemicals.
Bin Lid Opener
Pivots heavy hopper lids in material handling stations, easily lifting the 12.5 kg vertical load with a safe 2:1 margin.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X150SU the Right Cylinder?
When sizing this 245.3 N (0.5 MPa) unit, consider the adjacent bores: a Ø20 generates 157.0 N, while a Ø32 provides 402.2 N. If air pressure drops or the valve centres, the piston drifts because the fixed bumpers only soften stroke-end impacts rather than locking the load; incorporate an external rod lock or pilot check valve for holding. The 150 mm stroke is well within the 500 mm maximum, but ensure front mounting alignment to prevent rod bending under side loads.
The -S magnet enables CMSG, DMSG, and EMSG sensors, while the 90-degree U rear cover aids compact plumbing. For high-speed cycles requiring adjustable deceleration, step up to the MIC variable air cushion variant instead of relying on the standard TPU bumpers.
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 MI25X150SU 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. This Ø25 bore uses a 1/8" air port.
No, the piston drifts if air is lost because the TPU bumpers only decelerate the stroke end rather than acting as a brake; use a pilot check valve for holding. The built-in magnet (-S) accepts CMSG, DMSG, and 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 MI25~40 Stainless Steel Mini Cylinder MI25X150SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.