Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X150CM
The AirTAC Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X150CM is a genuine single acting, pull (spring return) round-body mini air cylinder with a Ø40mm bore and 150mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke150 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 MTI40X150CM
Delivering a substantial 466.8 N of pull force at 0.5 MPa, this round-body stainless steel mini cylinder is engineered for heavy-duty tensioning and retraction tasks. As a single-acting PULL type, an internal spring drives the rod to the extended position at rest, while compressed air through the 1/4 inch port retracts it. Because it fails safe in the extended state, it keeps hold-downs and gates engaged even if air pressure drops. The stainless barrel and rod resist mild corrosion and washdown environments.
This specific 150 mm stroke configuration is a non-standard, made-to-order option, as single-acting springs are typically limited to 80 mm on a 40 mm bore. It requires at least 0.2 MPa of input pressure to overcome the return spring and pull the load. For practical sizing, this translates to a safe working load of roughly 280 N, or a vertical lift capacity of about 23.8 kg with a 2:1 safety margin. The CM round rear cover provides a clean back-end profile for straightforward mounting.
Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X150CM Technical Specifications
| Model | Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X150CM |
|---|---|
| Series | MTI mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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 MTI40X150CM
| MTI | round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 MTI40X150CM Is Used
Fail-Safe Heavy Gates
Keep large access gates securely closed and blocked during an air loss event, as the internal spring automatically extends the rod to maintain a physical barrier.
Tensioning Systems
Provide constant 466.8 N pulling tension on belts or cables at rest, using compressed air only to release or slacken the line when process changes demand it.
Spring-Loaded Hold-Downs
Maintain firm downward clamping pressure on heavy machined parts, ensuring the workpiece stays locked in place if the pneumatic air supply is suddenly interrupted.
Is the Airtac MTI Single Acting Stainless Steel Mini Cylinder MTI40X150CM the Right Cylinder?
When sizing this 40 mm bore, compare its 466.8 N pull at 0.5 MPa against your actual load requirements. If your application needs less force, the next size down is the 32 mm bore, which provides 295.6 N of pull; since 40 mm is the largest in this series, moving up requires a different cylinder family. Remember that the spring only extends the rod and cannot hold a mid-stroke load—the fixed TPU bumper pads simply soften the stroke ends.
Because this 150 mm travel length exceeds the standard 80 mm spring limit for this bore, expect a non-standard, made-to-order part. This SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors; choose the -S variant if position feedback is required. Mounting options include LB foot, FA flange, SDB pivot-block, and TC trunnion styles.
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 MTI40X150CM FAQ
It generates 466.8 N of pull at 0.5 MPa and 677.9 N at 0.7 MPa. It is a single-acting cylinder that rests extended and requires at least 0.2 MPa of air pressure to overcome the internal spring and retract the rod.
No, this specific SKU lacks a magnet and cannot accept CMSG, DMSG, or EMSG sensors; you must select the -S variant for position feedback. It is also a single-acting pull cylinder, not double-acting, and uses a stainless round-body construction.
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