Airtac MTF Mini Cylinder MTF20X15SCA
The AirTAC Airtac MTF Mini Cylinder MTF20X15SCA is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 15mm 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
- Stroke15 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MTF Mini Cylinder MTF20X15SCA
Delivering 93.4 N of net pull force at 0.5 MPa, this single-acting spring-return mini cylinder uses air to retract the rod and an internal spring to push it back out. Because the spring holds the piston extended at rest, the mechanism automatically fails to the extended position if air pressure drops, making it perfect for spring-open and air-close tasks. The riveted SUS304 stainless round-body construction shrinks mounting length compared to an ISO 6432 unit and provides reliable resistance to mild corrosion and washdown environments.
Equipped with a CA rear pivot cover and a built-in magnet (-S), this JIS-standard unit supports CMSG, DMSG, or EMSG sensors for position feedback. It features an 8 mm rod, an M8x1.25 male thread, and a 1/8 inch port. With a 15 mm stroke, fixed TPU bumper pads absorb end-of-stroke impact across the 50-800 mm/s speed range. For sizing context, the 93.4 N pull at 0.5 MPa yields a safe working load of roughly 56 N, which translates to lifting or holding about 4.8 kg vertically with a 2:1 safety margin.
Airtac MTF Mini Cylinder MTF20X15SCA Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF20X15SCA |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 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 MTF20X15SCA
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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 MTF20X15SCA Is Used
Tension Control
Uses the 93.4 N pull to maintain tension on light filaments or webs, automatically snapping back to the extended rest position if the air supply fails.
Fail-Safe Open Valve
Spring-extended design keeps a divertor or flap open by default; applying air retracts the 15 mm stroke to close the flow path securely.
Clamp Retraction
Pulls a light packaging clamp out of the way after a seal is made, with the internal spring ensuring the clamp returns to its extended clearance state on air loss.
Is the Airtac MTF Mini Cylinder MTF20X15SCA the Right Cylinder?
When selecting this bore, note that 0.2 MPa is the minimum pressure required to overcome the spring and pull the rod inward. If your application needs less force, this 20 mm bore is the smallest available in the series. If you need more pull, the next size up is the MTF25, which raises the net pull force to 153.6 N at 0.5 MPa.
This specific configuration includes the -S magnet for electronic or reed switch tracking and a CA back cover for pivot mounting. The 1/8 inch port and fixed TPU bumpers suit fast, short 15 mm retraction cycles. For double-acting tasks or mid-stroke holding, consider the standard MF series instead.
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 MTF20X15SCA FAQ
It provides a net pull force of 93.4 N at 0.5 MPa and 146.1 N at 0.7 MPa. The operating pressure range is 0.2-1.0 MPa, and a minimum of 0.2 MPa is required to overcome the internal spring and retract the rod.
Air only retracts the rod; the internal spring extends it, meaning the cylinder fails to the extended position on air loss. The -S option adds a piston magnet so you can mount CMSG, DMSG, or EMSG sensors for position detection.
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