Airtac MI25~40 Stainless Steel Mini Cylinder MI25X300CM
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X300CM is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 300mm 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
- Stroke300 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 MI25X300CM
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding 300 mm stroke tasks. The Ø25 bore conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for easy design integration. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted-steel alternatives in damp or washdown environments.
The riveted round body uses fixed TPU bumper pads to decelerate the piston at stroke end, though these do not act as an adjustable air cushion. With a 1/8" port and a CM round rear cover, the actuator is built for compact pivoting setups. Plan for roughly 147 N of actual work at 0.5 MPa, which means it can safely lift about 12.5 kg vertically with a 2:1 safety margin. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X300CM Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X300CM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 300 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 MI25X300CM
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×300 | 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 MI25X300CM Is Used
Package Diverting Gate
Actuates a routing flap on a packaging conveyor, using the 245 N thrust to push parcels firmly into secondary sorting lanes.
Vertical Parts Lift
Raises lightweight plastic totes 300 mm between conveyor tiers, safely lifting components weighing up to 12.5 kg.
Damp Environment Ejector
Ejects machined metal parts from a washed-down CNC cell, leveraging the stainless construction to prevent corrosion.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X300CM the Right Cylinder?
When sizing this 25 mm bore, stepping down to a Ø20 actuator drops the 0.5 MPa push force to 157 N, while moving up to a Ø32 bore raises it to 402 N. This model sits in a solid mid-range thrust class. The 300 mm stroke is well within the 500 mm standard maximum, but at this length side-load and rod-bending forces are magnified, so precise guiding is essential to prevent premature seal wear.
A plain MI actuator will drift if air pressure is lost or the control valve is centred; the TPU bumpers only soften the end-of-stroke impact and do not function as a locking brake. To suspend a load safely, fit an external rod lock or a pilot-operated check valve. The CM round end cover dictates the rear mounting geometry, and you must specify the -S variant if your application requires magnetic sensing.
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 MI25X300CM FAQ
This 25 mm bore 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. Its theoretical maximum force is 50 kgf at 1.0 MPa.
No, this specific SKU lacks the internal magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must select the -S variant (MI25X300CM-S) to enable position sensing.
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