
The AirTAC Airtac MTF Mini Cylinder MTF20X150U is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 150mm stroke, 1/8" 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.
Generating 93.4 N of net pull at 0.5 MPa, this AirTAC MTF20X150U is built for long-stroke spring-open and air-close tasks. As a single-acting pull cylinder, an internal spring holds the rod extended at rest, and applying air to the 1/8" port retracts it. If air pressure drops, the spring drives the rod back out to the extended position, providing a mechanical fail-safe rather than holding a mid-stroke load.
The JIS-standard round-body design uses a SUS304 stainless steel barrel with riveted aluminium covers, making the overall envelope shorter than a comparable ISO 6432 unit while resisting mild washdown. It hits the 150 mm maximum stroke limit for the series, features fixed TPU bumper pads for end-of-stroke deceleration, and lacks a magnet so it cannot host CMSG or DMSG sensors. For sizing, the 93.4 N pull at 0.5 MPa yields a safe working load of about 56 N, or roughly 4.8 kg of vertical lift with a 2:1 margin.
| Model | Airtac MTF Mini Cylinder MTF20X150U |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 150 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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.
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 93.4 N |
| 0.7 MPa | 146.1 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 20 | 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.
Uses the internal spring to hold a 150 mm barrier open by default; air pulls the rod in to close it, ensuring the gate snaps back open if the air supply fails.
Draws 93.4 N of pulling force at 0.5 MPa to maintain tension on long cables or webs, releasing the pull only when compressed air is applied.
Pulls a light 4.8 kg vertical load up and out of the way using air, relying on the spring to lower the load safely to the extended rest position on air loss.
Choose this 20 mm bore if you need exactly 150 mm of travel with a fail-safe-extended return, delivering 93.4 N of pull at 0.5 MPa or 146.1 N at 0.7 MPa. If your tensioning job requires less force, note there is no smaller MTF bore, but if you need more pull, step up to the MTF25 which provides 153.6 N at 0.5 MPa. Operating pressure must stay between 0.2 and 1.0 MPa, with 0.2 MPa being the absolute floor required to overcome the internal spring. This specific SKU has a U flat-end rear cover and no magnet, meaning it cannot accept position sensors; you would need the -S variant to use CMSG, DMSG, or EMSG switches. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets.
Quick checklist
This 20 mm bore cylinder provides a net pull force of 93.4 N at 0.5 MPa and 146.1 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the return spring, with a maximum pressure of 1.0 MPa and a proof pressure of 1.5 MPa.
This SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG magnetic switches; you must order the -S variant for sensing. It features a U flat-end rear cover, and because it is single-acting pull, the spring always drives the rod to the extended position on air loss rather than holding a mid-stroke load.
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