Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250CM
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250CM is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 250mm 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
- Stroke250 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 MFC40X250CM
Delivering robust thrust in a compact footprint, the AirTAC MFC40X250CM is a JIS-standard round-body mini cylinder engineered for double-acting operation. Built with a SUS304 stainless barrel and riveted aluminium covers, it resists mild corrosion and washdown environments. For the same 40 mm bore and 250 mm stroke, this riveted body is notably shorter than an ISO 6432 cylinder, saving valuable mounting length without sacrificing power.
At the core of its design is a variable air cushion at both ends, allowing you to turn a needle valve to soak up high-speed end-of-stroke shock, protecting the load and cutting noise. Operating at 1/4" ports with a 16 mm rod, it pushes 628.3 N at 0.5 MPa. This translates to a safe working load of about 377 N, or lifting roughly 32 kg vertically with a 2:1 safety margin. Note this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG sensors.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250CM Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250CM |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 MFC40X250CM
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | 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 MFC40X250CM Is Used
High-Speed Package Diverting
Ideal for routing heavy cartons at 800 mm/s, where the adjustable air cushion absorbs the 250 mm stroke impact to prevent payload damage.
Vertical Box Flap Folding
Provides the 628.3 N push force needed to fold thick cardboard, while the cushioned stroke ensures quiet, jolt-free operation on packaging lines.
Washdown Component Ejection
The SUS304 stainless barrel withstands moist ejection stations, safely pushing parts out of the machine zone with precise 250 mm travel.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250CM the Right Cylinder?
When sizing this 40 mm bore, evaluate your thrust needs both ways. If 628.3 N at 0.5 MPa is excessive, stepping down to the MFC32 yields 402.2 N, while no larger MFC bore exists for heavier demands. The variable air cushion is essential when cycling at high speeds or moving heavy masses, as it decelerates the piston smoothly. Remember that this cushion only eases the stop; it does not lock the rod. If your application must hold a load vertically during air loss, install an external rod lock or pilot check valve. This CM round-end rear cover model supports LB foot, FA flange, SDB pivot, and TC trunnion mounts.
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 MFC40X250CM FAQ
This double-acting cylinder features a 1/4" port and a 16 mm rod. 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, 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 position sensing. The variable air cushion at both ends functions solely to decelerate the piston near stroke end and does not act as a brake.
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