
The AirTAC Airtac MTF Mini Cylinder MTF20X100U is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 100mm 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.
Delivering a net pull of 93.4 N at 0.5 MPa, this single-acting spring-return mini cylinder is engineered for tensioning and air-close operations. An internal spring constantly pushes the 8 mm rod to its extended rest state, meaning a loss of air pressure safely drives the mechanism back out. The JIS-standard round-body construction, featuring a SUS304 stainless barrel riveted to aluminium covers, is physically shorter than a comparable ISO 6432 unit, saving valuable mounting length while resisting mild washdown corrosion.
This specific MTF20X100U variant features a 100 mm stroke, a 1/8" port, and a U flat-end rear cover. Because it lacks the -S magnet option, it cannot host CMSG, DMSG, or EMSG position sensors. Deceleration is handled purely by fixed TPU bumper pads. For sizing context, its effective vertical lift capacity is roughly 4.8 kg using a conservative 2:1 safety margin, equating to a safe working load of about 56 N.
| Model | Airtac MTF Mini Cylinder MTF20X100U |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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. |
| ×100 | 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 93.4 N pull force to maintain tension on belts or filaments, automatically releasing the load to the extended position if air pressure drops.
Air retracts the rod to close a gate, while the internal spring forces it back open upon air loss, ensuring a safe extended state during outages.
Pulls a lightweight 4.8 kg packaging clamp out of the way during product loading, relying on the spring to hold the clamp clear at rest.
When sizing this 20 mm bore unit, note that it provides a 93.4 N pull at 0.5 MPa and requires a minimum 0.2 MPa operating pressure to overcome the internal spring. If your application demands less force, no smaller MTF bore exists, but stepping up to the MTF25 increases the pull to 153.6 N at 0.5 MPa. This cylinder excels in spring-open / air-close jobs where the rod must fail to the extended position.
Mounting flexibility is provided through LB foot, FA flange, SDB pivot, and TC trunnion brackets. Since this exact SKU is non-magnetic, you cannot attach reed or solid-state switches; choose an MTF-S model if you require CMSG, DMSG, or EMSG sensing. The male M8x1.25 rod thread and U flat-end back cover simplify straightforward tool mounting.
Quick checklist
This 20 mm bore cylinder delivers a single-acting 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 spring, with a maximum limit of 1.0 MPa.
No, this specific SKU does not include a magnet and cannot accept CMSG, DMSG, or EMSG sensors. Additionally, because it is single-acting pull, the spring drives the rod to the extended position on air loss; it will not hold a mid-stroke load.
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