Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X300CM
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X300CM is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 300mm 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
- Stroke300 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 MFC40X300CM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy 300 mm strokes with precision. The MFC40X300CM features a needle-set variable air cushion at both ends, allowing you to dial in the deceleration and eliminate end-of-stroke bang when cycling at high speeds. Built with a SUS304 stainless barrel and riveted aluminium covers, it resists mild corrosion and washdown. For the same bore and stroke, the JIS-standard body is notably shorter than an ISO 6432 cylinder, saving valuable mounting length.
The 40 mm bore uses a 1/4" port and a 16 mm rod with an M14x1.5 male thread. It yields a safe working load of about 377 N, lifting roughly 32 kg vertically with a 2:1 margin. This specific SKU lacks the -S magnet, meaning it cannot accept CMSG, DMSG, or EMSG switches. It carries a CM round-end rear cover. Note that the air cushion only decelerates the piston near the stroke end; it is not a lock, so an external rod lock or pilot check valve is required to hold a load on air loss.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X300CM Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X300CM |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 MFC40X300CM
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 MFC40X300CM Is Used
Heavy Carton Diversion
Pushes heavy packaged goods across a high-speed belt line, relying on the needle air cushion to stop the 300 mm stroke smoothly without jarring the contents.
Press Ejection
Ejects dense formed parts from a press bed, using the 628.3 N push force to clear the die while the adjustable cushion absorbs the kinetic energy at stroke end.
Pallet Positioning
Indexes loaded pallets laterally on a roller conveyor, where the 40 mm bore provides the necessary thrust and the CM round-end cover fits tight frame spaces.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X300CM the Right Cylinder?
When sizing this 40 mm bore, step down to the MFC32 if your load requires less force, as it provides 402.2 N of push at 0.5 MPa. Since 40 mm is the largest bore in the MFC family, you cannot size up within this series. The variable air cushion is essential if you are moving heavy masses at high speeds, as it protects the mechanism from impact shock. Because this is a plain cylinder without a magnet, position sensing is unavailable on this SKU; choose the -S variant if you need CMSG, DMSG, or EMSG switches. 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 0.15 – 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 MFC40X300CM FAQ
This 40 mm bore cylinder uses a 1/4" port. At 0.5 MPa it pushes 628.3 N and pulls 527.8 N. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. The variable air cushion at both ends only decelerates the piston; it does not lock or hold the load on air loss.
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