Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SUTC
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SUTC is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 125mm stroke, 1/4" 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.
- BoreØ40 mm
- Stroke125 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SUTC
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder brings variable air cushioning to heavy-duty automation. The needle-adjustable cushions at both ends absorb high-speed end-of-stroke shock, protecting your machinery and cutting noise far better than a fixed rubber bumper. Its SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments.
For the same bore and stroke, the JIS-standard MFC body is noticeably shorter than an ISO 6432 cylinder, saving valuable mounting length. Equipped here with a piston magnet (-S) for CMSG, DMSG or EMSG sensors, a U flat-end rear cover, and a TC trunnion mount, it handles strokes up to 500 mm. The 1/4" port and M14x1.5 male rod thread support robust airflow and load anchoring. With a 628.3 N push capacity, it provides a safe working load of about 377 N, lifting roughly 32 kg vertically with a 2:1 margin.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SUTC Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SUTC |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SUTC
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×125 | 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 MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SUTC Is Used
Heavy Carton Diverting
Pushes heavy palletized cartons at high speed onto secondary lines, using the variable air cushion to halt the 628.3 N thrust without slamming.
Vertical Load Lowering
Lowers 32 kg fixtures smoothly on the down stroke, with the needle adjustment preventing a jarring crash at the U flat-end bottom cover.
Pallet Pressing
Holds and presses packaging materials flat under 0.7 MPa (879.6 N push), relying on the TC trunnion to absorb slight side-misalignment.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SUTC the Right Cylinder?
If 628.3 N at 0.5 MPa is excessive, the next size down is the MFC32, which outputs 402.2 N; as 40 mm is the largest bore in the MFC series, moving up requires a different family. Choose this variable air cushion model when cycling heavy loads at high speeds, as the needle valve lets you dial in the exact deceleration to prevent end-cap impact.
Remember that the air cushion only decelerates the piston near the stroke end and does not function as a lock or brake. If air pressure drops, the piston will drift, so fit an external rod lock or pilot-operated check valve for suspended loads. The included -S magnet enables position sensing, while the TC trunnion supplies pivot articulation.
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 0.15 – 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 MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SUTC FAQ
This 40 mm bore, 125 mm stroke double-acting cylinder pushes 628.3 N and pulls 527.8 N at 0.5 MPa. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N, with a theoretical maximum force of 128.1 kgf at 1.0 MPa. It uses a 1/4" air port and an M14x1.5 male piston rod thread.
No, the variable air cushion only decelerates the piston near the end of stroke; it is not a brake. The piston will drift if air is lost, so you need an external rod lock or pilot check valve for holding. The SUS304 stainless barrel resists corrosion, the -S suffix allows CMSG/DMSG/EMSG sensor mounting, and the TC trunnion mount pairs with a U flat-end back cover.
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