
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SCA is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 65mm 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.
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles demanding actuation with a 65 mm stroke. The Ø25 mm 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, offering a real edge over painted alternatives in damp or washdown settings. The riveted construction is compact, and fixed TPU bumper pads absorb stroke-end impact.
Equipped with a built-in piston magnet (-S), it supports CMSG, DMSG and EMSG switches for position sensing. The rear CA pivot cover allows direct clevis mounting. For practical sizing, plan for about 147 N of real work at 0.5 MPa, which means it can safely lift a 12.5 kg part vertically with a 2:1 safety margin.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 65 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.
| 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.
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×65 | 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.
Swings a heavy sorting gate on a packaging line using the CA clevis, relying on its 245.3 N push force to redirect loaded cartons reliably.
Drives a dowel pin into an aluminum housing on an assembly fixture, utilising the 65 mm stroke and position confirmation from a DMSG sensor.
Deploys a mechanical stop block on a roller conveyor to halt pallets, with the stainless build surviving dusty and mildly humid warehouse conditions.
When sizing this 65 mm stroke unit, note the Ø20 bore provides 157.0 N push at 0.5 MPa, while the larger Ø32 offers 402.2 N if you need substantially more force. The 1/8" port and M10x1.25 male rod thread are fixed by the Ø25 bore. The included -S magnet enables CMSG/DMSG/EMSG sensors, and the CA rear cover provides a pivot point for angular movement. For a 65 mm stroke, side-load stress on the Ø10 mm rod is minimal, but always ensure the front mount guides the payload accurately.
Remember that fixed TPU bumpers only decelerate the stroke end; they do not act as a brake. If air pressure drops or the valve is centred, the piston will drift and drop the load. To maintain vertical position safely, fit an external rod lock or a pilot-operated check valve rather than relying on the cylinder itself.
Quick checklist
This Ø25 mm bore cylinder features a 1/8" port and an M10x1.25 male rod thread. 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.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG and EMSG electronic switches. However, it does not hold position if air is lost; the piston drifts. The fixed TPU bumpers only soften the stroke end, so you must add an external rod lock or pilot check valve to suspend a load safely.
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