Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X40SCM
The AirTAC Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X40SCM is a genuine single acting, pull (spring return) round-body mini air cylinder with a Ø40mm bore and 40mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke40 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 MTI40X40SCM
Delivering a net pull of 466.8 N at 0.5 MPa, this round-body stainless mini cylinder uses compressed air to retract the rod while an internal spring pushes it back out. Because it rests in the extended position, the MTI40X40SCM provides a fail-safe forward stop that stays engaged even if air pressure drops. The stainless steel barrel and rod resist mild corrosion and washdown environments. A practical buyer insight: this bore yields a safe working load of roughly 280 N, or a vertical pull capacity of about 23.8 kg when applying a 2:1 safety margin.
This single-acting pull unit requires at least 0.2 MPa of input pressure to overcome the return spring and initiate retraction. It features a 1/4 inch port and a CM round rear cover for straightforward mounting. Fixed TPU bumper pads soften the impact at stroke ends, though they do not lock the load mid-stroke. To add position sensing, the -S suffix on this SKU enables the use of CMSG, DMSG or EMSG switches.
Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X40SCM Technical Specifications
| Model | Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X40SCM |
|---|---|
| Series | MTI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 MTI40X40SCM
| MTI | round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | 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 MTI40X40SCM Is Used
Heavy Duty Hold-Down
Maintains 280 N of safe downward clamping pressure on large assemblies, automatically snapping back into the hold position if the air supply fails.
Normally-Closed Heavy Gate
Keeps a robust sorting gate shut across a conveyor line by default, using the 466.8 N spring force to block pallets until air retracts the rod.
Vertical Tensioning
Applies up to 23.8 kg of vertical pull with a 2:1 safety margin to keep tension belts taut, returning to the stretched state upon air loss.
Is the Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X40SCM the Right Cylinder?
When sizing by pull force, this 40 mm bore generates 466.8 N at 0.5 MPa. If your application requires less force, stepping down to the 32 mm bore yields 295.6 N at the same pressure; as the largest available option in the series, there is no larger standard bore. Remember that the internal spring keeps the rod extended at rest, so you only need one air line to pull it back, provided you supply at least 0.2 MPa to beat the spring. The 40 mm stroke sits well within the 80 mm standard travel limit for this bore. Mounting options include LB foot, FA flange, SDB pivot-block and TC trunnion, and the included magnet works with CMSG, DMSG and 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 MTI40X40SCM 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. The rod rests in the extended position and requires at least 0.2 MPa of air pressure to overcome the internal spring and retract.
This is strictly a single-acting spring-return cylinder, not double-acting. Because it carries the -S suffix, it includes a built-in magnet for CMSG, DMSG and EMSG sensors. Without the -S designation, a SKU cannot accept a sensor.
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