Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X30U
The AirTAC Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X30U is a genuine single acting, pull (spring return) round-body mini air cylinder with a Ø8mm bore and 30mm 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
- Stroke30 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 MTI8X30U
Delivering 12.3 N of pull force at 0.5 MPa, this AirTAC stainless-steel round-body mini cylinder uses an internal spring to push the rod out at rest. Compressed air through the M5x0.8 port retracts the rod, meaning the cylinder stays extended if air pressure drops. This fail-safe extend behavior is ideal for holding gates closed or keeping stops engaged during an outage.
Because it is a single-acting pull type, you only need one air line, which saves plumbing and compressed air. The unit requires at least 0.2 MPa of pressure to overcome the return spring and retract. With a practical safe working load of about 7 N, it can vertically lift or hold roughly 0.6 kg with a 2:1 safety margin. The Ø8 mm bore conforms to ISO 6432 mounting dimensions, and this specific SKU lacks a magnet, so it cannot accept position sensors.
Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X30U Technical Specifications
| Model | Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X30U |
|---|---|
| Series | MTI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 30 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 MTI8X30U
| MTI | ISO 6432 round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 8 | Bore size in mm. |
| ×30 | 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 MTI8X30U Is Used
Normally-Closed Gate
Holds a light access gate shut by spring force. Air pulls the rod back to open the gate, ensuring it locks closed automatically during an air loss.
Small Part Hold-Down
Keeps a lightweight packaging flap or thin material pressed down. The rod stays extended at rest, maintaining pressure until 0.2 MPa air retracts it.
Wire Tensioning
Maintains steady tension on a delicate wire or thread. The spring constantly extends the rod, pulling back only when compressed air is applied.
Is the Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X30U the Right Cylinder?
Size this actuator strictly by its pull force. If 12.3 N at 0.5 MPa is insufficient for your retract load, step up to the Ø10 bore, which provides 23.2 N of pull. There is no smaller standard MTI bore below Ø8. Remember that the internal spring only provides extension force; it cannot hold a load in a mid-stroke position.
This 30 mm stroke sits well within the 50 mm spring limit for Ø8 bores. The rear U-style cover allows 90-degree mounting flexibility. Because this base model has no -S magnet option installed, it cannot support CMSG, DMSG, or EMSG sensors.
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 MTI8X30U FAQ
It is a single-acting pull cylinder that rests extended. It requires 0.2 MPa minimum pressure to retract. The pull force is 12.3 N at 0.5 MPa and 19.9 N at 0.7 MPa. It uses an M5x0.8 port.
No, this specific SKU does not include a magnet. You must purchase the -S variant to use CMSG, DMSG, or EMSG position sensors. It is also strictly single-acting, not double-acting.
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