Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X80CM
The AirTAC Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X80CM is a genuine single acting, pull (spring return) round-body mini air cylinder with a Ø40mm bore and 80mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke80 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM12×1.25
- CushionFixed TPU bumper pads
About the Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X80CM
Generating 466.8 N of pull at 0.5 MPa, this round-body stainless mini cylinder uses a single-acting pull design where compressed air retracts the rod and an internal spring pushes it back out. Because the spring holds the rod extended at rest, the mechanism naturally fails safe to the forward position if air pressure is lost. The stainless steel barrel and rod resist mild corrosion and washdown environments.
Fitted with a 1/4 inch port and a Ø16 mm rod, this unit requires at least 0.2 MPa of input pressure to overcome the return spring. For sizing, the 466.8 N pull at 0.5 MPa translates to a safe working load of roughly 280 N, or a vertical lift capacity of about 23.8 kg when applying a 2:1 safety margin. This SKU lacks a magnet and cannot host position sensors.
Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X80CM Technical Specifications
| Model | Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X80CM |
|---|---|
| Series | MTI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø40mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 466.8 N |
| 0.7 MPa | 677.9 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 MTI40X80CM
| MTI | round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 MTI40X80CM Is Used
Fail-Safe Hold-Down Clamp
Keeps a workpiece clamped in the extended position by default, using the 466.8 N pull to retract only when air is applied, ensuring parts stay secured during pressure loss.
Tensioning Mechanism
Maintains constant forward tension on belts or web materials via the internal spring, using the pneumatic pull to release or slacken the line as needed.
Normally-Closed Gate
Acts as a heavy-duty stop that stays engaged at rest to block pallets, pulling back to allow passage only when the system is pressurized.
Is the Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X80CM the Right Cylinder?
When sizing by pull force, this Ø40 bore generates 466.8 N at 0.5 MPa, sitting directly above the Ø32 bore which yields 295.6 N at the same pressure. As the largest available bore in the series, there is no larger option to step up to if your application requires more pull. Remember that the internal spring requires a minimum 0.2 MPa to retract the rod.
The 80 mm stroke represents the maximum standard travel for this bore size; longer distances are non-standard. This specific configuration uses a CM round rear cover and lacks the -S magnet option, meaning CMSG, DMSG, or EMSG sensors cannot be installed. Mounting can be adapted using LB foot, FA flange, SDB pivot-block, or TC trunnion hardware.
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 MTI40X80CM FAQ
It is a single-acting pull cylinder that produces 466.8 N of pull at 0.5 MPa and 677.9 N at 0.7 MPa. It requires a minimum of 0.2 MPa to overcome the internal spring. At rest or upon air loss, the spring keeps the rod extended.
No, this specific SKU does not include a magnet, so it cannot support CMSG, DMSG, or EMSG sensors. You would need the -S variant for sensing capabilities. It also features fixed TPU bumper pads rather than an adjustable air cushion.
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