Airtac MTF Mini Cylinder MTF40X150CM
The AirTAC Airtac MTF Mini Cylinder MTF40X150CM is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 150mm stroke, 1/4" air ports and a SUS304 stainless-steel barrel for mildly corrosive environments. For the same bore and stroke it is shorter than an ISO 6432 cylinder, saving mounting space.
- BoreØ40 mm
- Stroke150 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF40X150CM
Delivering a robust 434.8 N of pull force at 0.5 MPa, this AirTAC MTF40X150CM mini cylinder is engineered for single-acting pull operations. An internal spring holds the rod in the extended position, while supplying air to the 1/4 inch port retracts it. Because the spring constantly drives the rod outward, the cylinder automatically fails to the extended state upon air loss, making it highly reliable for spring-open and air-close mechanisms. The quoted pull force is already net of the spring resistance, and a minimum of 0.2 MPa is required to overcome it.
Built as a JIS-standard round-body unit, it features a SUS304 stainless steel barrel and riveted aluminium covers that resist mild corrosion and washdown environments. For the same 40 mm bore and 150 mm stroke, this body is notably shorter than an ISO 6432 cylinder, saving valuable mounting length. This specific SKU lacks a magnet and cannot accept position sensors; adding the -S option enables CMSG, DMSG, or EMSG switches. It uses fixed TPU bumper pads for end-of-stroke deceleration and includes a CM round-end rear cover. Based on the 0.5 MPa rating, the safe working load is roughly 261 N, which translates to lifting or holding about 22.2 kg vertically with a 2:1 safety margin.
Airtac MTF Mini Cylinder MTF40X150CM Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF40X150CM |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 MF/MFC (JIS-standard) datasheet. Barrel: SUS304 stainless steel; covers: aluminum alloy (round-body, riveted rolling-packed construction). Thread options: PT (blank) / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 434.8 N |
| 0.7 MPa | 645.8 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 MTF Mini Cylinder MTF40X150CM
| MTF | JIS-standard 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. |
MF-family variants: MF / MFC (double acting ±cushion), MSF / MTF (single acting push / pull), MFD / MFCD (double rod ±cushion), MFJ / MFCJ (adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MTF Mini Cylinder MTF40X150CM Is Used
Heavy-Duty Tensioning
Pulls heavy cables or webs with up to 434.8 N of force at 0.5 MPa, safely maintaining roughly 261 N of working tension during operation.
Fail-Safe Gate Opening
Holds large access doors open via spring pressure; air retracts the rod to close them, ensuring the barrier opens automatically if pneumatic pressure drops.
Vertical Load Retraction
Pulls items downward against gravity, capable of handling an effective load of about 22.2 kg with a 2:1 safety margin before the spring pushes back out.
Is the Airtac MTF Mini Cylinder MTF40X150CM the Right Cylinder?
When sizing this 40 mm bore unit, evaluate both directions: if 434.8 N of pull at 0.5 MPa is excessive, stepping down to the MTF32 provides 266.8 N, which may better suit lighter tensioning tasks. As the largest available MTF bore, there is no larger standard option for higher force requirements. This model is ideal for applications requiring a return-to-extended fail-safe, such as tensioning or holding gates open, where air actively pulls the load inward. Ensure your air supply maintains at least the 0.2 MPa floor to retract the rod against the spring. Mounting flexibility is provided via LB foot, FA flange, SDB pivot, or TC trunnion brackets, and the male M14x1.5 rod thread accommodates standard attachments. Remember that because this specific configuration lacks the -S magnet, it cannot support magnetic sensing.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/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/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MTF Mini Cylinder MTF40X150CM FAQ
This single-acting pull cylinder generates 434.8 N of pull force at 0.5 MPa and 645.8 N at 0.7 MPa. These figures are net of the internal spring. It requires a minimum operating pressure of 0.2 MPa to overcome the spring and retract the rod, with a maximum pressure of 1.0 MPa.
The spring constantly extends the rod, so upon air loss the cylinder fails to the fully extended position. It cannot hold a load in a mid-stroke state. For mid-stroke holding, a double-acting MF cylinder with an external rod lock is required. Additionally, this non-S SKU lacks a magnet and cannot use CMSG, DMSG, or EMSG sensors.
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