Airtac MSF Single Acting Mini Cylinder MSF20X100CM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X100CM is a genuine single acting, push (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, push (spring return)
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
About the Airtac MSF Single Acting Mini Cylinder MSF20X100CM
Delivering 117.5 N of push force at 0.5 MPa, this MSF20X100CM mini cylinder uses air to extend the rod and an internal spring to retract it. Because it is single-acting, you only plumb one 1/8" port, which simplifies valve requirements and ensures the rod fails to the retracted position on air loss. The 100 mm stroke operates within a JIS-standard round-body format that is physically shorter than an ISO 6432 unit of the same size, while the SUS304 stainless barrel shrugs off mild washdown. It features a CM round-end rear cover and fixed TPU bumper pads.
The quoted push force is already net of the return spring, meaning you get that true usable thrust at the rod. For practical sizing, expect a safe working load of about 71 N, or roughly 6 kg of vertical lift with a 2:1 safety margin. Note that this specific SKU lacks the -S magnet option, so it cannot host CMSG, DMSG, or EMSG sensors for position detection.
Airtac MSF Single Acting Mini Cylinder MSF20X100CM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X100CM |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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 MSF20X100CM
| MSF | JIS-standard round-body mini cylinder (single-acting push, 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 MSF Single Acting Mini Cylinder MSF20X100CM Is Used
Small Part Ejection
Pushes lightweight machined components out of a fixture with 117.5 N of thrust, letting the internal spring automatically retract the 8 mm rod between cycles.
Fail-Safe Clamping
Holds a workpiece with a safe working load near 71 N during processing, releasing instantly and returning to the rest position if the air supply drops.
Package Gating
Acts as a compact 100 mm stroke diverter gate on a conveyor line, using its shorter JIS body to fit into tight transfer spaces where ISO 6432 units will not.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X100CM the Right Cylinder?
When sizing this 20 mm bore unit, compare its 117.5 N @0.5 MPa thrust against the next size up: the MSF25 delivers 192.8 N if your clamp or ejector needs more muscle. There is no smaller MSF bore, so for lighter duties you may need to step outside the series. Single-acting spring-return cylinders fit best in simple clamping, gating, or ejection tasks where the load only resists the extension stroke and the spring can freely pull back. You must maintain at least 0.2 MPa of operating pressure to overcome the return spring.
Mounting is versatile with LB foot, FA flange, SDB pivot, and TC trunnion options available to suit your frame. Because this model has no -S magnet, position sensing is impossible; if your sequence requires confirmation of the retracted or extended state, select the -S variant to enable CMSG, DMSG, or EMSG switches.
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 MSF20X100CM FAQ
This single-acting cylinder provides a net push force of 117.5 N at 0.5 MPa and 181.3 N at 0.7 MPa. You must supply at least 0.2 MPa of air pressure to overcome the internal return spring, with a maximum operating pressure of 1.0 MPa.
No. On air loss, the spring drives the rod to the retracted position; it cannot hold an arbitrary mid-stroke load. For position detection, you need the -S magnet variant to use CMSG, DMSG, or EMSG switches, as this SKU cannot take a sensor.
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