Airtac MTF Mini Cylinder MTF20X100SU
The AirTAC Airtac MTF Mini Cylinder MTF20X100SU 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.
- BoreØ20 mm
- Stroke100 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF20X100SU
Generating 93.4 N of pull at 0.5 MPa (146.1 N at 0.7 MPa), this 20 mm bore cylinder uses air to retract the rod while an internal spring pushes it back out. The quoted pull force is already net of the spring, meaning the pneumatic input is entirely dedicated to the closing or tensioning task. Because the spring holds the piston extended at rest, the mechanism naturally fails to the extended position if air pressure drops, making it ideal for spring-open, air-close operations.
Built as a JIS-standard round-body mini cylinder, the MTF20X100SU features a SUS304 stainless steel barrel and riveted aluminium covers, yielding a shorter mounting envelope than an ISO 6432 unit of the same bore and stroke. The integrated -S piston magnet supports CMSG, DMSG, and EMSG position sensing, while the U flat-end rear cover simplifies direct mounting. With a 1/8" port and an M8x1.25 male rod thread, it provides a safe working load of roughly 56 N, or about 4.8 kg of vertical lift with a 2:1 safety margin.
Airtac MTF Mini Cylinder MTF20X100SU Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF20X100SU |
|---|---|
| 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.
Theoretical Output Force (Ø20mm)
| 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.
Model Code: Airtac MTF Mini Cylinder MTF20X100SU
| 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.
Where the Airtac MTF Mini Cylinder MTF20X100SU Is Used
Fail-Safe Gates
Holds access hatches open via spring force, using the 93.4 N pneumatic pull to close them securely upon actuation.
Tension Control
Maintains steady cable or web tension by pulling against the load, automatically extending back out if air pressure is lost.
Light Retraction
Pulls light 4.8 kg vertical loads up and out of the way, relying on the internal spring to lower the weight safely when air stops.
Is the Airtac MTF Mini Cylinder MTF20X100SU the Right Cylinder?
When sizing this 20 mm bore unit against the next size up, the MTF25X100 provides a higher 153.6 N pull at 0.5 MPa if your load exceeds the 93.4 N capacity of this cylinder; as the smallest bore in the MTF family, there is no smaller option available. Select this single-acting pull model for tasks requiring a return-to-extended fail-safe, such as tensioning or holding gates open, ensuring your system operates above the 0.2 MPa minimum pressure required to overcome the spring. Mounting flexibility is provided via LB foot, FA flange, SDB pivot, or TC trunnion brackets, and the -S magnet variant enables solid-state or reed switch tracking.
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 MTF20X100SU FAQ
This 20 mm bore cylinder delivers 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 internal return spring, with a maximum pressure of 1.0 MPa and a proof pressure of 1.5 MPa.
The internal spring constantly extends the rod, so air is only used to retract it. If air pressure is lost, the spring drives the rod to the fully extended position rather than holding a mid-stroke load. The SUS304 stainless barrel resists mild corrosion, and the -S magnet allows CMSG or DMSG sensors to track this movement.
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