Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X25SCA
The AirTAC Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X25SCA is a genuine single acting, pull (spring return) round-body mini air cylinder with a Ø8mm bore and 25mm stroke, M5×0.8 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.
- BoreØ8 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeSingle acting, pull (spring return)
- Rod threadM4×0.7
- CushionFixed TPU bumper pads
About the Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X25SCA
Designed for compact automation, this AirTAC round-body mini cylinder uses an internal spring to keep the rod extended at rest, while compressed air retracts it. As a single-acting pull type, it delivers a net pull force of 12.3 N at 0.5 MPa, making it ideal for lightweight tasks. The stainless-steel barrel and rod provide reliable resistance to mild corrosion and washdown environments.
Because the rod stays forward during an air loss, it serves as a fail-safe extend mechanism for normally-closed gates or hold-downs. It requires at least 0.2 MPa of input pressure to overcome the spring and pull back. This CA back-cover variant includes a built-in piston magnet (-S) for position sensing, and uses an M5x0.8 port. For sizing, expect a safe working load of about 7 N, or a vertical pull capacity near 0.6 kg with a 2:1 safety margin.
Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X25SCA Technical Specifications
| Model | Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X25SCA |
|---|---|
| Series | MTI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 150 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 (Ø8mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 12.3 N |
| 0.7 MPa | 19.9 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X25SCA
| MTI | ISO 6432 round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 8 | Bore size in mm. |
| ×25 | 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 MTI Single Acting Stainless Steel Mini Cylinder MTI8X25SCA Is Used
Fail-Safe Hold-Down
Keeps a light 7 N clamping force on small parts during machining, automatically releasing only when air pulls the rod back.
Normally-Closed Gate
Secures a tiny parts diversion gate in the blocked position at rest, using the 12.3 N pull force to retract and allow passage.
Light Tensioning
Maintains steady belt or filament tension on a conveyor, pulling back against the spring when pneumatic force is applied.
Is the Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X25SCA the Right Cylinder?
When sizing by pull force, this Ø8 bore provides 12.3 N at 0.5 MPa. If you need less force, there is no smaller standard bore in the MTI family, so you must reduce operating pressure. If your application requires more pull, step up to the Ø10 bore, which yields 23.2 N at 0.5 MPa. Keep in mind the spring limits standard strokes to 50 mm on this bore.
The fail-safe-extend design means the rod stays out if air pressure drops below the 0.2 MPa minimum required to retract it. This CA clevis model features the ISO 6432 mounting interface for easy bracket interchangeability. The -S magnet allows you to mount CMSG, DMSG, or EMSG sensors directly, while fixed TPU bumpers manage end-of-stroke deceleration.
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 0.2 – 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 MTI Single Acting Stainless Steel Mini Cylinder MTI8X25SCA FAQ
It provides a net pull force of 12.3 N at 0.5 MPa and 19.9 N at 0.7 MPa. It requires at least 0.2 MPa to overcome the internal spring. Because it is a single-acting pull cylinder, the spring extends the rod to its rest position, so it stays extended on air loss.
Yes, the -S in the model code indicates a built-in piston magnet, allowing you to use CMSG, DMSG, or EMSG switches. It is a single-acting spring-return cylinder, not double-acting, and features a stainless-steel round body with an M5x0.8 port.
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