Airtac MSF Single Acting Mini Cylinder MSF20X70CA
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X70CA is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 70mm 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
- Stroke70 mm
- Port size1/8"
- Acting typeSingle acting, push (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 MSF Single Acting Mini Cylinder MSF20X70CA
Delivering 117.5 N of push force at 0.5 MPa, this AirTAC mini cylinder uses a single-acting spring-return design where compressed air extends the rod and an internal spring retracts it. Because you only pipe one 1/8" port, plumbing is simpler, and the unit defaults to a safe retracted state on air loss. The 20 mm bore generates a safe working load of roughly 71 N, making it ideal for light-duty clamping or ejecting.
Built as a JIS-standard round-body unit with a SUS304 stainless barrel and riveted aluminium covers, it occupies a shorter mounting envelope than an ISO 6432 cylinder of the same size. This specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG, or EMSG sensors. It includes a CA rear pivot cover and relies on fixed TPU bumper pads for end-of-stroke deceleration across its 50-800 mm/s speed range.
Airtac MSF Single Acting Mini Cylinder MSF20X70CA Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X70CA |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 70 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 MSF20X70CA
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×70 | 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 MSF20X70CA Is Used
Light-Duty Clamping
Uses its 117.5 N output to secure small components during machining, releasing automatically to the retracted position on air loss.
Package Ejector
Pushes lightweight cartons off a belt with a 71 N safe working load, relying on the internal spring to reset the rod quickly.
Pneumatic Gate
Actuates small diverter gates where a fail-safe retracted state is required, fitting into tight spaces thanks to the compact JIS body.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X70CA the Right Cylinder?
If 71 N of safe working load is insufficient, step up to the MSF25, which provides 192.8 N at 0.5 MPa; there is no smaller bore in the MSF range. This single-acting push design is optimal for spring-return clamping, ejection, or gating tasks where air loss must trigger a safe retraction. Ensure your supply stays at or above the 0.2 MPa floor, otherwise the return spring will overpower the air pressure and prevent extension. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets, and you must select an -S variant if position sensing is required.
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 MSF20X70CA FAQ
This 20 mm bore cylinder provides a net push force of 117.5 N at 0.5 MPa and 181.3 N at 0.7 MPa. It requires an operating pressure between 0.2 and 1.0 MPa; the 0.2 MPa minimum is necessary to overcome the internal return spring.
No, this specific SKU does not include a magnet. You must choose an -S variant to use CMSG, DMSG, or EMSG magnetic switches. Additionally, the spring returns the rod to rest on air loss but cannot hold a mid-stroke load.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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