Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550SCA
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550SCA is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 550mm 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
- Stroke550 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 MI25X550SCA
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding push-pull cycles. The Ø25 mm bore uses a 1/8" port and an M10x1.25 male rod thread. Its riveted stainless barrel and rod resist mild corrosion, making it superior to painted alternatives in damp washdown zones. The built-in magnet (-S) supports CMSG, DMSG, and EMSG position switches.
Because the 550 mm stroke exceeds the 500 mm standard maximum for this bore, this unit is a non-standard, made-to-order configuration. Plan for roughly 147 N of actual work at 0.5 MPa to maintain a safe margin, which translates to lifting about 12.5 kg vertically. Fixed TPU bumper pads absorb end-of-stroke impacts, and the rear CA pivot clevis accommodates angular alignment.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550SCA Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 550 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 MI25X550SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×550 | 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 MI25X550SCA Is Used
Diverting Heavy Cartons
Uses the 245.3 N push at 0.5 MPa to reliably push heavy packaged goods across transfer plates on packaging lines.
Long Vertical Material Lift
Leverages the 550 mm stroke to lower lifting forks into deep bins, safely moving parts weighing up to 12.5 kg.
Textile Loom Tensioning
Employs the stainless steel construction and CA pivot mount to maintain fabric tension in humid manufacturing environments.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X550SCA the Right Cylinder?
When sizing this 25 mm bore, stepping down to a 20 mm bore lowers the output to 157.0 N at 0.5 MPa, while moving up to a 32 mm bore increases it to 402.2 N. The 1/8" port and M10x1.25 rod thread are fixed by the bore size. Because the 550 mm stroke is a non-standard made-to-order length, expect a longer lead time and ensure your guide rails prevent rod bending under side loads.
The CA rear pivot cover requires a matching clevis bracket. This base MI relies on fixed TPU bumpers for end deceleration, not an adjustable air cushion. If the air supply drops, the piston will drift and cannot hold position; integrate an external rod lock or pilot check valve for vertical load holding.
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 MI25X550SCA FAQ
At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port size is 1/8".
No, the piston will drift downward if air is lost or the valve is centered. The fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. You must use an external rod lock or pilot-operated check valve to hold a suspended load.
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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