Airtac MSF Single Acting Mini Cylinder MSF20X150SU
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X150SU is a genuine single acting, push (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 150mm 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
- Stroke150 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 MSF20X150SU
Delivering 117.5 N of push force at 0.5 MPa, this JIS-standard round-body mini cylinder uses a SUS304 stainless barrel and riveted aluminium covers to resist mild washdown environments. As a single-acting push type, compressed air entering the 1/8 inch port extends the Ø8 mm rod, while an internal spring retracts it. Because the spring constantly pulls back, the quoted force is already net of that resistance, yielding a safe working load of roughly 71 N or a 6 kg vertical lift with a 2:1 margin.
This 150 mm stroke unit features a built-in magnet (-S) for CMSG, DMSG or EMSG sensors, plus a flat-end U back cover. For the same bore and stroke, the riveted construction is shorter than an ISO 6432 cylinder, saving valuable mounting length. It uses fixed TPU bumper pads for end-of-stroke deceleration and requires at least 0.2 MPa of air pressure to overcome the return spring.
Airtac MSF Single Acting Mini Cylinder MSF20X150SU Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X150SU |
|---|---|
| Series | MSF JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 150 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 MSF20X150SU
| MSF | JIS-standard round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | 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 MSF20X150SU Is Used
Small Part Ejection
Uses the 71 N safe working load to push light machined components out of a fixture, relying on the spring to retract the rod cleanly when air is removed.
Package Deflector Gate
Extends 150 mm to divert small cartons on a line, with the flat-end U cover and compact JIS body fitting neatly into tight conveyor framing.
Lightweight Vertical Lift
Raises roughly 6 kg of payload against gravity using the 0.5 MPa push force, returning to the bottom rest position automatically on air loss.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X150SU the Right Cylinder?
When sizing this 20 mm bore model, compare it directly against the next size up: the MSF25 provides 192.8 N at 0.5 MPa if your clamp or ejector needs more muscle, while the 20 mm bore is the smallest available in the MSF range. Single-acting spring-return cylinders excel in simple ejection or gating tasks where losing air pressure must force the rod safely back to the retracted position. Remember the 0.2 MPa pressure floor; below that, the spring wins and the rod will not extend. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets.
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 MSF20X150SU FAQ
The net push force is 117.5 N at 0.5 MPa and 181.3 N at 0.7 MPa. Because it is single-acting with a spring return, it requires a minimum operating pressure of 0.2 MPa to overcome the internal spring and extend the rod.
No. On air loss the internal spring drives the rod to the fully retracted position; it cannot hold an arbitrary mid-stroke load. For position holding you need a double-acting MF cylinder with an external rod lock. This -S model does include a magnet for CMSG, DMSG or EMSG sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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