Airtac MSF Single Acting Mini Cylinder MSF20X150CM
The AirTAC Airtac MSF Single Acting Mini Cylinder MSF20X150CM 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
About the Airtac MSF Single Acting Mini Cylinder MSF20X150CM
Delivering 117.5 N of push force at 0.5 MPa, this AirTAC MSF20X150CM 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" port, simplifying your valve setup. The quoted force is already net of the return spring, and the unit requires at least 0.2 MPa of operating pressure to overcome that spring. For practical sizing, expect a safe working load of roughly 71 N, or a vertical lift capacity of about 6 kg with a 2:1 margin.
Built as a JIS-standard round-body unit with a SUS304 stainless barrel and riveted aluminium covers, it occupies a shorter envelope than an ISO 6432 cylinder for the same 20 mm bore and 150 mm stroke. The CM round-end rear cover helps streamline your mounting footprint. This specific SKU lacks a magnet, so it cannot accept position sensors; adding the -S variant 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 MSF20X150CM Technical Specifications
| Model | Airtac MSF Single Acting Mini Cylinder MSF20X150CM |
|---|---|
| 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 MSF20X150CM
| 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 MSF20X150CM Is Used
Light-Duty Clamping
Provides 117.5 N of push force at 0.5 MPa to hold light workpieces, returning automatically via spring when air is removed.
Parts Ejection
Uses its 150 mm stroke to push small components off a conveyor line, safely defaulting to the retracted state on air loss.
Packaging Gates
Actuates lightweight diverters or gates with a 6 kg vertical lift capacity, relying on fixed TPU bumpers for quiet end-of-stroke stops.
Is the Airtac MSF Single Acting Mini Cylinder MSF20X150CM the Right Cylinder?
When sizing this 20 mm bore model, verify your actual load against the 117.5 N push figure at 0.5 MPa. If your application requires more power, step up to the MSF25, which provides 192.8 N at 0.5 MPa; since 20 mm is the smallest available bore, there is no smaller MSF option. Choose this single-acting spring-return configuration for clamping, ejecting, or gating tasks that must fail safely to the retracted position upon air loss. Keep in mind the 0.2 MPa minimum pressure floor required to extend the rod. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets. Because this SKU has no magnet, order an -S version if you need CMSG, DMSG, or EMSG 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 MSF20X150CM FAQ
It generates 117.5 N of push force at 0.5 MPa and 181.3 N at 0.7 MPa. The operating pressure ranges from 0.2 to 1.0 MPa; a minimum of 0.2 MPa is required to overcome the internal return spring.
No. On air loss, the spring drives the rod to the retracted position, so it cannot hold a mid-stroke load without a double-acting MF and external rod lock. Additionally, this SKU lacks a magnet and cannot take sensors; you need the -S variant for CMSG, DMSG, or EMSG switches.
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