Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X175SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X175SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 175mm 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
- Stroke175 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 MFC40X175SU
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore mini cylinder tackles heavy loads with precision. The MFC40X175SU features a needle-adjustable variable air cushion at both ends, allowing you to dial in the deceleration to absorb high-speed end-of-stroke shock. This protects your machinery and significantly reduces noise compared to fixed bumper designs. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments.
For the same bore and stroke, the JIS-standard round-body construction is notably shorter than an ISO 6432 cylinder, saving valuable mounting length. Equipped with a U flat-end back cover and an integrated piston magnet (-S), it supports CMSG, DMSG, and EMSG position switches. Based on the 0.5 MPa push rating, it handles a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 safety margin.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X175SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X175SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 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 MFC40X175SU
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 MFC40X175SU Is Used
Heavy Package Diversion
Uses the 628.3 N push force to deflect heavy cartons on a high-speed sorting line, with the variable air cushion preventing harsh slams at the end of the 175 mm stroke.
Press Ejection
Pushes finished metal parts out of a press, relying on the 377 N safe working load capacity and the SUS304 stainless build to withstand mild industrial splashes.
Vertical Pallet Lifts
Raises lightweight pallet trays vertically, safely lifting about 32 kg with a 2:1 margin while the U flat-end back cover mounts flush to the machine frame.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X175SU the Right Cylinder?
When sizing this 40 mm bore unit, the MFC32 is the next step down, providing 402.2 N of push force at 0.5 MPa for lighter payloads. Since 40 mm is the largest bore in the MFC series, moving beyond the 628.3 N @0.5 MPa output requires a different cylinder family. The variable air cushion is essential when cycling at high speeds or moving heavy masses, as it prevents harsh impacts. Remember that the cushion only decelerates the piston near the stroke end; it does not function as a brake or lock.
If your application must hold position during an air loss or valve centre, the piston will drift, so you need an external rod lock or pilot-operated check valve. This specific SKU includes the -S magnet for sensors and uses a 1/4" port. You can mount it using LB foot, FA flange, SDB pivot, or TC trunnion brackets to suit your layout.
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 MFC40X175SU FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm piston rod with an M14x1.5 male thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, the piston will drift on air loss. The needle-set variable air cushion at both ends only decelerates the piston near the stroke end to reduce shock; it is not a brake or lock. For vertical load holding, you must install an external rod lock or a pilot-operated check valve.
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