Airtac MTF Mini Cylinder MTF40X30SCA
The AirTAC Airtac MTF Mini Cylinder MTF40X30SCA is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF40X30SCA
Delivering a robust 434.8 N pull force at 0.5 MPa (645.8 N at 0.7 MPa), this 40 mm bore cylinder is engineered for demanding tensioning tasks. It operates as a single-acting pull unit: an internal spring holds the rod extended at rest, while supplying air to the 1/4 inch port retracts it. Because the spring constantly pushes outward, the cylinder safely fails to the extended position if air pressure drops, making it ideal for spring-open applications. The quoted forces are already net of the spring resistance.
Built with a JIS-standard round body, the SUS304 stainless steel barrel and riveted aluminium covers provide excellent resistance to mild corrosion and washdown environments. For the same 40 mm bore and 30 mm stroke, this compact housing is notably shorter than an ISO 6432 cylinder, saving valuable machine space. It uses fixed TPU bumper pads for end-of-stroke deceleration and includes a built-in magnet (-S) for CMSG, DMSG, or EMSG sensors. The CA pivot back cover simplifies articulating mount installations. Based on the 434.8 N baseline, a safe working load is roughly 261 N, which equates to lifting or holding about 22.2 kg vertically with a 2:1 safety margin.
Airtac MTF Mini Cylinder MTF40X30SCA Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF40X30SCA |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 MTF40X30SCA
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 MTF40X30SCA Is Used
Heavy-Duty Tensioning
Pulls heavy cables or belts with a 434.8 N force at 0.5 MPa, releasing tension only when compressed air is applied to the 1/4 inch port.
Fail-Safe Gate Opening
Holds a safety barrier open via the internal spring; air retracts the 16 mm rod to close it, ensuring the gate springs open during a pneumatic power loss.
Pneumatic Retraction Arm
Uses the 645.8 N pull at 0.7 MPa to withdraw a heavy deflector or diverter on a packaging line, relying on the spring to push the arm back into the active position.
Is the Airtac MTF Mini Cylinder MTF40X30SCA the Right Cylinder?
When sizing this unit, evaluate your tension requirements against both directions. If the 434.8 N pull at 0.5 MPa exceeds your needs, step down to the MTF32 bore, which provides 266.8 N at the same pressure. Since 40 mm is the largest available MTF bore, you cannot size up within this series. Ensure your air supply provides at least the 0.2 MPa floor required to overcome the internal spring before retracting the rod.
This single-acting pull configuration is optimal for mechanisms requiring a fail-safe extended state, such as spring-open clamps that use air to release. The included -S magnet enables position sensing with CMSG, DMSG, or EMSG switches, and the CA pivot back cover accommodates angular misalignment during operation.
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 MTF40X30SCA FAQ
This 40 mm bore cylinder generates 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 and retract the rod.
The internal spring constantly drives the rod to the extended position. If air pressure is lost, the cylinder fails safely to the extended state; it cannot hold a mid-stroke load. The -S magnet allows CMSG or DMSG sensors to track this position.
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 MTF40X30SCA
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.