Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X115SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X115SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 115mm 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
- Stroke115 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X115SU
Delivering 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty motion within a compact footprint. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments. For the same bore and stroke, the MFC body is shorter than an ISO 6432 cylinder, saving valuable mounting length.
The defining feature is the variable air cushion at both ends: a needle valve lets you dial in the deceleration to absorb high-speed end-of-stroke shock, protecting the load and cutting noise compared to a fixed bumper. With a safe working load of roughly 377 N, it lifts about 32 kg vertically with a 2:1 safety margin. The U flat-end back cover suits direct rear mounting, and the -S suffix means a built-in magnet enables CMSG, DMSG or EMSG position sensing.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X115SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X115SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 115 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 MFC40X115SU
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×115 | 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 MFC40X115SU Is Used
Heavy Carton Diverting
Pushes heavy corrugated cartons at high speed across a transfer line; the tuned air cushion prevents harsh slams that could crush packaging.
Vertical Press Assembly
Lowers a 25 kg tooling head smoothly into position, relying on the variable cushion to decelerate the 527.8 N pull load before the bottom stop.
Pallet Flap Folding
Folds large cardboard flaps on automated palletisers, where the SUS304 barrel withstands dusty, mildly humid packing-hall conditions.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X115SU the Right Cylinder?
When sizing this 40 mm bore, step down to the MFC32 if your load requires less than 402.2 N of push force at 0.5 MPa, as no larger MFC bore exists for heavier demands. The adjustable air cushion is essential when cycling at high speeds or moving substantial masses, allowing you to fine-tune the end-of-stroke deceleration. Note that the cushion only slows the piston near the end of travel; it does not function as a lock. If the application must hold a load vertically during air loss or valve centering, fit an external rod lock or pilot-operated check valve to prevent drift.
This 115 mm stroke variant uses a 1/4" port and an M14x1.5 male rod thread. The included -S magnet supports CMSG, DMSG and EMSG switches for precise end-position detection, while the U-style back cover provides a flat surface for direct mounting.
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 MFC40X115SU FAQ
This 40 mm bore cylinder features a 1/4" port and an M14x1.5 male rod 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 variable air cushion only decelerates the piston near the stroke end and acts purely as a shock absorber, never as a brake or lock. If you need to prevent drift on a vertical load during air loss or valve centering, install an external rod lock or pilot check valve. The -S magnet enables CMSG, DMSG and EMSG sensors for position feedback.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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