Airtac MSF Single Acting Mini Cylinder MSF20X20CM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X20CM is a genuine single acting, push (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, push (spring return)
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MSF Single Acting Mini Cylinder MSF20X20CM
Delivering 117.5 N of push force at 0.5 MPa, this AirTAC MSF20X20CM mini cylinder uses compressed air to extend the rod and an internal spring to retract it. Because it is single-acting, you only need to plumb one 1/8 inch port, which simplifies valve requirements and ensures the rod fails safely to the retracted position if air pressure drops. The JIS-standard round-body construction, featuring a SUS304 stainless barrel and riveted aluminium covers, is physically shorter than a comparable ISO 6432 unit, saving valuable mounting length.
The quoted thrust is already net of the return spring, meaning you get the full 181.3 N at 0.7 MPa for actual work. For practical sizing, expect a safe working load of roughly 71 N, or the ability to clamp and lift about 6 kg vertically with a 2:1 safety margin. This specific SKU lacks a magnet and cannot host position sensors; adding the -S option enables CMSG, DMSG, or EMSG switches. End-of-stroke deceleration is handled by fixed TPU bumper pads rather than an adjustable air cushion.
Airtac MSF Single Acting Mini Cylinder MSF20X20CM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X20CM |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push (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 | Push force (spring return) |
|---|---|
| 0.5 MPa | 117.5 N |
| 0.7 MPa | 181.3 N |
Single-acting push: air extends the rod; the return spring retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac MSF Single Acting Mini Cylinder MSF20X20CM
| MSF | JIS-standard round-body mini cylinder (single-acting push, 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 MSF Single Acting Mini Cylinder MSF20X20CM Is Used
Small Part Clamping
Clamps light machined components with a safe holding force near 71 N, releasing instantly when air is removed.
Package Ejector
Pushes lightweight cartons off a belt line using the 117.5 N thrust, relying on the spring to retract the 8 mm rod.
Vertical Lift Gate
Raises a small diverter gate holding about 6 kg, failing safely to the closed position during an air loss event.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X20CM the Right Cylinder?
If the 117.5 N thrust at 0.5 MPa is insufficient for your clamp or ejector, step up to the MSF25 bore, which provides 192.8 N at the same pressure. There is no smaller MSF bore, so 20 mm is the floor for this series. Remember the 0.2 MPa minimum operating pressure floor; below this, the internal spring wins and the rod will not extend. This model features a CM round-end rear cover and uses an M8x1.25 male rod thread. Because this base SKU has no magnet, order an -S variant if your cycle requires CMSG, DMSG, or EMSG position sensing.
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 MSF Single Acting Mini Cylinder MSF20X20CM FAQ
This single-acting cylinder generates 117.5 N of thrust at 0.5 MPa and 181.3 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the return spring and has a maximum pressure limit of 1.0 MPa.
No, this specific SKU does not include a magnet and cannot support sensing. You must specify the -S option to use CMSG, DMSG, or EMSG switches. The spring returns the rod to rest on air loss, but it cannot hold a mid-stroke load.
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