
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X65SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 65mm 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.
Delivering 628.3 N of push force at 0.5 MPa, the AirTAC MF40X65SCM is a 40 mm bore double-acting JIS-standard round-body mini cylinder. Because the riveted rolling-packed structure is shorter than an ISO 6432 cylinder for the same 65 mm stroke, it fits tighter machinery frames. The SUS304 stainless barrel and aluminium covers resist mild corrosion and washdown, while the piston's two-way seal retains an oil film for long life.
For practical sizing, plan for about 377 N of real work at 0.5 MPa, which safely lifts a 32 kg part vertically with a 2:1 margin. Fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impact without offering adjustable cushioning. This SKU includes a built-in magnet for position sensing and features a CM round-end back cover with a 1/4 inch port.
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X65SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 65 mm |
| Acting type | Double acting |
| 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 | Fixed TPU bumper pads |
| 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.
| 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.
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×65 | 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.
Provides 628.3 N of push force at 0.5 MPa to secure heavy cast iron engine blocks during CNC milling operations.
Extends 65 mm to push dense corrugated cartons onto a secondary packaging line using the CM round-end rear pivot.
Halts loaded timber pallets on a gravity roller conveyor, safely handling parts weighing up to 32 kg.
When sizing this 40 mm bore, step down to the MF32 if your task needs only 402.2 N at 0.5 MPa, or step up beyond this largest MF bore if you require more than 628.3 N. The 16 mm rod and M14x1.5 male thread handle substantial loads, but for a 65 mm stroke, ensure your mounting avoids excessive side-load to prevent rod bending.
This SKU carries the -S magnet, so it is ready for CMSG, DMSG, or EMSG switches. Remember that a plain cylinder drifts if air is lost or the valve is centred; the TPU pads only decelerate the end of travel. To hold a load securely mid-stroke, add an external rod lock or a pilot-operated check valve.
Quick checklist
The 40 mm bore uses a 1/4 inch 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, the base MF uses fixed TPU bumper pads to decelerate, not an adjustable air cushion; for variable cushioning look at the MFC variant. Additionally, the piston drifts on air loss, so you need an external rod lock or pilot check valve to hold a load.
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