Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC32X40SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC32X40SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø32mm bore and 40mm 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.
- BoreØ32 mm
- Stroke40 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC32X40SU
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MFC32X40SU is a JIS-standard round-body mini cylinder built for high-speed actuation. It features a SUS304 stainless barrel with riveted aluminium covers, resisting mild corrosion and washdown environments. For the same bore and stroke, this compact riveted body is notably shorter than an ISO 6432 cylinder, saving valuable machine space.
A defining trait of the MFC series is the variable air cushion at both ends. By turning a needle valve, you tune the end-of-stroke deceleration to absorb shock and reduce noise, protecting the load. This 32 mm bore unit has a 1/4" port, an M10x1.25 male rod thread, and a U flat-end rear cover. Because this SKU includes the -S magnet, it supports CMSG, DMSG, and EMSG position switches. Based on the 0.5 MPa push rating, it handles a safe working load of roughly 241 N, lifting about 20.5 kg vertically with a 2:1 margin.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC32X40SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC32X40SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MFC32X40SU
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 MFC32X40SU Is Used
Package Diverting
Uses the 402.2 N @0.5 MPa thrust to push parcels on a high-speed line, relying on the tuned air cushion to stop the stroke quietly without jarring the goods.
Component Pressing
Ideal for pressing small bearings where the U flat-end rear cover mounts flush, while the needle cushion protects fragile parts from impact at 800 mm/s.
Vertical Lift Stops
Lifts roughly 20.5 kg vertically with a 2:1 safety margin; the adjustable end cushioning eases the load to a gentle stop at the top of the 40 mm stroke.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC32X40SU the Right Cylinder?
When sizing this 32 mm bore, check both directions: step down to an MFC25 for 245.3 N @0.5 MPa if the load is lighter, or step up to an MFC40 for 628.3 N @0.5 MPa if you need more thrust. The variable air cushion is essential when cycling at high speeds or moving heavy masses, as it prevents harsh end-of-stroke impacts. Keep in mind the cushion only decelerates the piston; it does not function as a brake. If your application must hold a load vertically during air loss or valve centering, add an external rod lock or pilot-operated check valve, because the piston will drift. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion blocks to fit your frame.
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 MFC32X40SU FAQ
This double-acting cylinder has a 1/4" port and generates 402.2 N push / 345.6 N pull at 0.5 MPa, and 563 N push / 483.8 N pull at 0.7 MPa. Its theoretical maximum force is 82 kgf at 1.0 MPa.
No, the variable air cushion only decelerates the piston near the stroke end and is not a lock or brake. The piston will drift on air loss, so you need an external rod lock or pilot check valve for position holding. The -S magnet allows CMSG/DMSG/EMSG sensors to confirm position.
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