Airtac MI25~40 Stainless Steel Mini Cylinder MI25X400SUTC
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X400SUTC is a genuine double acting 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
- 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 MI25X400SUTC
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work across a 400 mm stroke. The riveted barrel and rod shrug off mild corrosion, outperforming painted alternatives in damp environments. With a 1/8" port and M10x1.25 male rod thread, it integrates seamlessly into robust pneumatic setups.
Equipped with a piston magnet (-S), it supports CMSG, DMSG and EMSG sensors for position detection. The U rear cover provides 90-degree porting, while the TC trunnion mount handles pivoting loads. Plan for roughly 147 N of actual work at 0.5 MPa, or expect it to lift about 12.5 kg vertically with a safe 2:1 margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X400SUTC Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X400SUTC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 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 MI25X400SUTC
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 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 MI25~40 Stainless Steel Mini Cylinder MI25X400SUTC Is Used
Package Diverting Gate
Actuates a heavy sorting flap on a logistics conveyor, using the 245.3 N thrust to redirect parcels reliably over the 400 mm travel.
Vertical Material Lift
Raises lightweight tote bins between conveyor tiers; the stainless construction withstands humid warehouse conditions without corroding.
Textile Beam Indexing
Shifts a fabric guide beam precisely across the 400 mm stroke, relying on the TC trunnion to accommodate the pivot arc.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X400SUTC the Right Cylinder?
Sitting between the 16 mm bore (100.5 N push) and the larger 32 mm bore (402.2 N push), this 25 mm bore hits a sweet spot for medium-force tasks. The 400 mm stroke is well within the 500 mm maximum, but at this length side-load and rod-bending stresses are real; ensure the TC trunnion is aligned perfectly to prevent premature seal wear.
The built-in magnet allows direct mounting of CMSG or DMSG switches. Remember that the fixed TPU bumper pads only decelerate the end of stroke; they do not act as a brake. If the machine loses air, the piston will drift, so fit an external pilot check valve if you need to suspend a load safely.
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 MI25X400SUTC FAQ
This 25 mm bore cylinder features a 1/8" port. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, increasing to 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 fixed TPU bumper pads only decelerate the piston near the stroke end and do not act as a lock. If air is lost, the rod will drift. To hold a vertical 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.
Request a Quote for Airtac MI25~40 Stainless Steel Mini Cylinder MI25X400SUTC
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.