Airtac MTF Mini Cylinder MTF20X20CM
The AirTAC Airtac MTF Mini Cylinder MTF20X20CM is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 20mm 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
- Stroke20 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MTF Mini Cylinder MTF20X20CM
Delivering 93.4 N of net pull at 0.5 MPa, this JIS-standard round-body mini cylinder uses an internal spring to keep the rod extended and compressed air to retract it. The MTF20X20CM features a 20 mm bore, a 20 mm stroke, and a CM round-end rear cover. Its SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments. Because the spring holds the rod out, the cylinder fails to the extended position on air loss, making it ideal for spring-open tasks.
This pull-only design cannot be pneumatically loaded in the extend direction. It operates between 0.2 and 1.0 MPa, requiring at least 0.2 MPa to overcome the spring. The unit has an 8 mm rod, an M8x1.25 male thread, and a 1/8" port. With fixed TPU bumper pads, it runs at 50-800 mm/s. This non-magnet SKU cannot take a sensor; adding the -S option enables CMSG, DMSG, or EMSG switches. For a safe working load, expect about 56 N, or roughly 4.8 kg of vertical lift with a 2:1 margin.
Airtac MTF Mini Cylinder MTF20X20CM Technical Specifications
| Model | Airtac MTF Mini Cylinder MTF20X20CM |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 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 MTF20X20CM
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 MTF20X20CM Is Used
Tensioning Systems
Provides 93.4 N of net pull at 0.5 MPa to maintain tension on belts or filaments, using air to release the load and the spring to pull back.
Fail-Safe-Open Valves
Holds a valve open via spring force; applying air retracts the 20 mm rod to close it, ensuring the valve automatically opens on air loss.
Light Clamping Returns
Retracts a light clamp using compressed air, allowing the internal spring to push the rod out and release the part safely.
Is the Airtac MTF Mini Cylinder MTF20X20CM the Right Cylinder?
If 93.4 N of pull at 0.5 MPa is insufficient, step up to the MTF25, which provides 153.6 N. Since 20 mm is the smallest available bore in this series, there is no smaller pull option. The 20 mm bore uses a 1/8" port and an M8x1.25 male rod thread. Choose this single-acting pull cylinder for tensioning, clamping, or fail-safe-open mechanisms where air closes the tool and the spring reopens it.
Mounting options include LB foot, FA flange, SDB pivot-block, and TC trunnion brackets. This specific configuration uses a CM round-end back cover. Remember that this SKU lacks a magnet, so it cannot support position sensing without upgrading to the -S variant.
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 MTF20X20CM 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 ranges from 0.2 to 1.0 MPa, with a minimum of 0.2 MPa required to overcome the internal spring.
No, this specific SKU does not include a magnet and cannot support CMSG, DMSG, or EMSG sensors. You must select the -S variant to enable position sensing.
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