Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X20CA
The AirTAC Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X20CA is a genuine single acting, pull (spring return) round-body mini air cylinder with a Ø8mm bore and 20mm 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
- Stroke20 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 MTI8X20CA
Delivering a net pull of 12.3 N at 0.5 MPa, this stainless-steel round-body mini cylinder uses compressed air to retract the rod while an internal spring pushes it back out. Because the spring holds the rod extended at rest, the mechanism naturally fails safe to a forward position if air pressure is lost. It requires at least 0.2 MPa of supply to overcome the spring tension and initiate the pull stroke.
Built to ISO 6432 mounting interface standards, the 8 mm bore drops into standard mini brackets and uses an M5x0.8 port with an M4x0.7 male rod thread. The CA rear pivot cover allows direct clevis mounting. For sizing, this yields a safe working load of about 7 N, or roughly 0.6 kg of vertical lift with a 2:1 safety margin. This non-magnet SKU cannot host position sensors.
Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X20CA Technical Specifications
| Model | Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X20CA |
|---|---|
| Series | MTI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 20 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 MTI8X20CA
| MTI | ISO 6432 round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 8 | Bore size in mm. |
| ×20 | 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 MTI8X20CA Is Used
Light Hold-Down
Maintains downward pressure on light assemblies at rest. Air pulls the 4 mm rod up to clear the part for loading.
Tensioning Lever
Keeps a light belt or filament taut with spring pressure. Applying air to the M5 port retracts the guide to release tension.
Fail-Safe Gate Stop
Blocks a small access port by default. Air retracts the stop out of the way, and the spring redeploys it instantly on air loss.
Is the Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X20CA the Right Cylinder?
Size this actuator strictly by its retract force, as the spring only drives the extension. At 0.5 MPa the 8 mm bore provides 12.3 N of pull; if your mechanism requires less force, note there is no smaller standard bore available. If you need more strength, stepping up to the Ø10 bore increases the pull to 23.2 N. Both options still require a minimum 0.2 MPa air supply to retract the rod.
The 20 mm stroke sits safely below the 50 mm spring limit for this bore size. The CA pivot cover suits angular linkages, while standard LB foot or FA flange brackets provide rigid mounting. Because this specific SKU lacks the -S magnet option, it cannot accept 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 MTI8X20CA FAQ
It provides a 12.3 N pull at 0.5 MPa and 19.9 N at 0.7 MPa. The rod rests in the extended position and requires at least 0.2 MPa of air pressure to overcome the internal spring and retract.
No, this specific SKU does not include a magnet, so CMSG, DMSG or EMSG switches will not function. You must select the -S variant for sensing capabilities. It is a single-acting pull cylinder, not double-acting.
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