Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X40CA
The AirTAC Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X40CA is a genuine single acting, pull (spring return) round-body mini air cylinder with a Ø8mm bore and 40mm 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
- Stroke40 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 MTI8X40CA
Generating 12.3 N of pull at 0.5 MPa, this stainless-steel round-body mini cylinder uses an internal spring to push the rod out at rest, while compressed air retracts it. Because it fails extended, the rod stays forward to keep gates or stops engaged if air pressure drops. The Ø8 mm bore operates on a single M5x0.8 port, saving plumbing and air volume compared to double-acting units.
Built with a corrosion-resistant stainless barrel and rod, it handles light washdown environments and drops into standard ISO 6432 mini-cylinder brackets. At 0.5 MPa it safely pulls about a 7 N load, or vertically lifts roughly 0.6 kg with a 2:1 safety margin. Note this non-magnet SKU cannot host position sensors; adding the -S option enables CMSG, DMSG, or EMSG switches.
Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X40CA Technical Specifications
| Model | Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X40CA |
|---|---|
| Series | MTI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 40 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 MTI8X40CA
| MTI | ISO 6432 round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 8 | Bore size in mm. |
| ×40 | 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 MTI8X40CA Is Used
Fail-Safe Stop Gate
Holds a lightweight guard or gate closed by spring force, ensuring the barrier stays extended during an air loss event until 0.2 MPa retracts it.
Light Tensioning Arm
Maintains steady 7 N pulling tension on a film or wire assembly, using the single-acting spring return to keep the material taut at rest.
Normally-Engaged Deflector
Keeps a small conveyor guide rail extended by default, pulling it back via the M5x0.8 port only when a part needs to pass unobstructed.
Is the Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI8X40CA the Right Cylinder?
Size by pull force: this Ø8 bore yields 12.3 N at 0.5 MPa, and since no smaller MTI exists, step up to the Ø10 bore (23.2 N) if your load exceeds this capacity. Factor in the fail-safe extend behavior, remembering the rod stays out until at least 0.2 MPa of air overcomes the spring to retract it. The 40 mm stroke sits right at the 50 mm spring limit for this bore, and the built-in CA rear clevis provides direct pivot mounting without extra brackets.
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 MTI8X40CA FAQ
It provides a 12.3 N pull at 0.5 MPa and 19.9 N at 0.7 MPa. The rod is normally extended at rest by an internal spring, and requires at least 0.2 MPa of air pressure to retract.
No, this specific SKU lacks a magnet and cannot accept CMSG, DMSG, or EMSG switches. You must select the -S variant for position sensing capabilities.
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