Airtac MTF Mini Cylinder MTF40X50CM
The AirTAC Airtac MTF Mini Cylinder MTF40X50CM is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF40X50CM
Delivering a robust 434.8 N of net pull force at 0.5 MPa (645.8 N at 0.7 MPa), this 40 mm bore pneumatic mini cylinder is engineered for heavy-duty tensioning and air-close tasks. As a JIS-standard round-body unit, its SUS304 stainless steel barrel and riveted aluminium covers form a compact assembly that is notably shorter than a comparable ISO 6432 cylinder, saving valuable machine space while resisting mild washdown corrosion. The 1/4" port and M14x1.5 male rod thread accommodate substantial airflow and rigid mounting for its 16 mm rod.
Because it is a single-acting pull type, an internal spring constantly holds the piston rod extended, and supplying air retracts it. This means the cylinder safely fails to the extended position if air pressure drops, which is ideal for fail-safe-open mechanisms. For sizing purposes, its effective vertical lift capacity is approximately 22.2 kg with a 2:1 safety margin, equating to a safe working load of about 261 N. This specific CM-cover SKU lacks the -S magnet option, so it cannot host CMSG, DMSG, or EMSG position sensors.
Airtac MTF Mini Cylinder MTF40X50CM Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF40X50CM |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MTF40X50CM
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MTF40X50CM Is Used
Heavy-Duty Tensioning
Uses the 434.8 N net pull force at 0.5 MPa to maintain constant tension on heavy belts, cables, or web materials, releasing the load only when air is applied.
Fail-Safe Door Opening
Keeps heavy access doors or safety guards locked open via spring force, automatically pushing them open if the air supply is lost, using the CM rear cover for pivot mounting.
Weight Retraction
Pulls vertically lifted loads weighing up to roughly 22.2 kg (with a 2:1 margin) out of a working area, relying on air to retract and the spring to hold the load up safely.
Is the Airtac MTF Mini Cylinder MTF40X50CM the Right Cylinder?
When sizing this 40 mm bore model, compare its 434.8 N pull force at 0.5 MPa directly against the next size down: the MTF32 delivers 266.8 N at the same pressure. Since 40 mm is the largest available MTF bore, you cannot step up within this series for higher loads. Choose this single-acting pull cylinder for applications requiring a spring-open, air-close action or a guaranteed return-to-extended fail-safe state. Note that a minimum operating pressure of 0.2 MPa is required to overcome the internal spring. It features a CM round-end rear cover and fixed TPU bumper pads for end-of-stroke deceleration across its 50-800 mm/s speed range.
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 MTF40X50CM FAQ
This single-acting pull cylinder provides a net pull force of 434.8 N at 0.5 MPa and 645.8 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the internal return spring, with a maximum operating pressure of 1.0 MPa and a proof pressure of 1.5 MPa.
This specific SKU does not include a magnet, so CMSG, DMSG, or EMSG sensors cannot be used; you would need the -S variant for sensing. The internal spring constantly extends the rod and holds it there at rest, meaning the cylinder fails to the extended position on air loss and cannot hold a mid-stroke load.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MTF Mini Cylinder MTF40X50CM
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.