Airtac MTF Mini Cylinder MTF32X80SU
The AirTAC Airtac MTF Mini Cylinder MTF32X80SU is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø32mm bore and 80mm 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
- Stroke80 mm
- Port size1/4"
- Acting typeSingle acting, pull (spring return)
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF32X80SU
Delivering a net pull of 266.8 N at 0.5 MPa (405 N at 0.7 MPa), this JIS-standard round-body mini cylinder uses a spring to hold the rod extended and compressed air to pull it back. The SUS304 stainless barrel and riveted aluminium covers yield a shorter overall body than an ISO 6432 unit for the same 32 mm bore and 80 mm stroke, while resisting mild washdown corrosion. Air connects via a 1/4" port, and fixed TPU bumper pads absorb end-of-stroke impacts across the 50-800 mm/s speed range.
Because the internal spring constantly drives the piston outward, the cylinder fails to the extended position if air pressure drops below the 0.2 MPa floor. This makes it ideal for spring-open, air-close tasks. Factoring a 2:1 safety margin, the 266.8 N pull translates to an effective vertical lift capacity of roughly 13.6 kg. The U flat-end back cover simplifies direct rear mounting, and the built-in magnet (-S) supports CMSG, DMSG, or EMSG position sensing.
Airtac MTF Mini Cylinder MTF32X80SU Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF32X80SU |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 80 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 MTF32X80SU
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 MTF32X80SU Is Used
Tension Mechanisms
Uses its 266.8 N air pull to draw back tensioned belts or cables, letting the spring maintain baseline tension when air is removed.
Fail-Safe Gates
Holds access doors open via spring force; applying air retracts the 12 mm rod to permit a secure, closed state.
Return-to-Extended Arms
Pulls a 13.6 kg mechanical arm inward during cycling, relying on the internal spring to push it back out if the air supply fails.
Is the Airtac MTF Mini Cylinder MTF32X80SU the Right Cylinder?
When sizing this 32 mm bore, evaluate the force both ways: step down to an MTF25 for 153.6 N at 0.5 MPa, or step up to an MTF40 for 434.8 N at 0.5 MPa. Choose this 266.8 N model when a mechanism must default to the extended position and use air only to retract. Ensure your supply meets the 0.2 MPa minimum to overcome the spring force. The included -S magnet enables electronic or reed switches, while the U back cover and standard 1/4" port simplify plumbing and mounting.
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 MTF32X80SU FAQ
It provides a single-acting pull force of 266.8 N at 0.5 MPa and 405 N at 0.7 MPa. A minimum operating pressure of 0.2 MPa is required to overcome the internal return spring.
The spring constantly extends the rod, meaning the cylinder fails to the extended position on air loss. It cannot hold a mid-stroke load. The -S magnet allows CMSG/DMSG/EMSG sensors to track this movement.
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1-Year Warranty
Covers non-human-caused product damage.
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