Airtac MI25~40 Stainless Steel Mini Cylinder MI25X125SCA
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X125SCA is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 125mm 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
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X125SCA
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles robust linear motion tasks. The Ø25 mm bore uses a 1/8" port and an M10x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted-steel or aluminium minis in damp, food or outdoor spots. The riveted round body is compact, and fixed TPU bumper pads soften the stroke-end impact by decelerating the piston without adjustable cushioning.
Because the -S suffix denotes a built-in piston magnet, this unit is fully ready for CMSG, DMSG or EMSG position switches. For sizing a task, plan for about 147 N of real work at 0.5 MPa, which means it lifts about 12.5 kg vertically with a 2:1 safety margin. The CA back cover provides an integrated pivot clevis for articulated mounting. It also conforms to the ISO 6432 mounting interface for bores Ø8-Ø25, dropping directly into standard mini-cylinder brackets and clevises.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X125SCA Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X125SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 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 MI25X125SCA
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×125 | 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 MI25X125SCA Is Used
Package Diverting Gate
Swings a lightweight sorting gate on a packaging line, using the 245.3 N thrust and CA pivot clevis to handle repetitive routing of cardboard cartons.
Textile Loom Tensioner
Maintains consistent yarn tension in a humid textile facility, relying on the stainless steel construction to resist moisture and mild corrosion.
Pallet Labelling Arm
Extends 125 mm to press an adhesive label onto palletized goods, using the CMSG sensor magnet to confirm the stroke end for the control system.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X125SCA the Right Cylinder?
When sizing this actuator, note the smaller Ø20 bore provides 157.0 N of push at 0.5 MPa, while the larger non-ISO Ø32 bore jumps to 402.2 N. If your application loses air or the valve is centred, the piston will drift; the TPU bumpers only decelerate the stroke end and never act as a lock or brake. To hold a load securely, add an external rod lock or a pilot-operated check valve. For this 125 mm stroke, minimize side-loading to prevent rod bending and premature seal wear. The CA rear clevis pairs with LB foot, FA flange, SDB pivot or TC trunnion front options for versatile alignment.
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 MI25X125SCA FAQ
This double-acting cylinder has a 1/8" port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, and 343.4 N push / 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
No, the piston drifts if air is lost or the valve is centred; the fixed TPU bumper pads only decelerate the stroke end and do not function as a lock or brake. Use an external rod lock or pilot check valve for load holding.
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