Airtac MTF Mini Cylinder MTF32X40U
The AirTAC Airtac MTF Mini Cylinder MTF32X40U is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø32mm bore and 40mm 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.
- BoreØ32 mm
- Stroke40 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MTF Mini Cylinder MTF32X40U
Delivering 266.8 N of net pull at 0.5 MPa (405 N at 0.7 MPa), this 32 mm bore cylinder uses air to retract a 12 mm rod against an internal spring, making it ideal for spring-open, air-close tasks. The spring constantly holds the rod extended, ensuring the mechanism safely fails to the extended position if air pressure drops below the 0.2 MPa floor. Featuring a 1/4 inch port and an M10x1.25 male rod thread, it yields a safe working load of roughly 160 N or a 13.6 kg vertical lift with a 2:1 margin.
Built as a JIS-standard round-body mini cylinder with a SUS304 stainless barrel and riveted aluminium covers, it is shorter than an ISO 6432 unit of the same bore and stroke, saving valuable mounting length. This specific SKU features a U flat-end back cover and lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors; you must specify the -S variant for position sensing. End-of-stroke deceleration relies on fixed TPU bumper pads rather than an adjustable air cushion.
Airtac MTF Mini Cylinder MTF32X40U Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF32X40U |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/4" |
| Rod thread | M10×1.25 |
| 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 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 (Ø32mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 266.8 N |
| 0.7 MPa | 405.0 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 MTF32X40U
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 MTF32X40U Is Used
Tensioning Mechanisms
Pulls with 266.8 N at 0.5 MPa to maintain strap or web tension, releasing the load only when air pressure is applied to retract the rod.
Fail-Safe Open Gates
Holds a barrier extended by spring force; air retraction pulls it closed, ensuring the gate pops open automatically on air loss.
Clamp Release Systems
Keeps a workpiece clamped in its extended rest state, using the 405 N @0.7 MPa pull force to retract and release the part for transfer.
Is the Airtac MTF Mini Cylinder MTF32X40U the Right Cylinder?
When sizing this 32 mm bore, compare its 266.8 N @0.5 MPa pull force against the smaller MTF25 at 153.6 N or the larger MTF40 at 434.8 N to ensure your air-close mechanism has the right tensioning capacity. Choose this single-acting pull configuration when you need the rod to return to an extended rest state automatically, keeping the system safely open during a pneumatic failure.
Remember that a minimum of 0.2 MPa operating pressure is required to overcome the internal spring and pull the rod in. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets to suit your frame, but because this non-S model has no magnet, you must select an -S version if your control system requires CMSG, DMSG, or EMSG position feedback.
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 MTF32X40U FAQ
It provides a net pull force of 266.8 N at 0.5 MPa and 405 N at 0.7 MPa. The operating pressure range is 0.2-1.0 MPa, with a 0.2 MPa minimum required to overcome the return spring and retract the 12 mm rod via the 1/4 inch port.
The spring constantly extends the rod, and air retracts it, meaning the cylinder fails to the extended position on air loss. It cannot hold an arbitrary mid-stroke load; for that, use a double-acting MF cylinder with an external rod lock. This non-S SKU also cannot take sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MTF Mini Cylinder MTF32X40U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.