Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300CM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300CM is a genuine double acting 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
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
- 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 MF32-40 Stainless Steel Mini Cylinder MF40X300CM
Delivering 628.3 N of push force at 0.5 MPa, the AirTAC MF40X300CM is a robust double-acting JIS-standard round-body mini cylinder built for demanding actuation. It features a SUS304 stainless-steel barrel with aluminium covers joined by a riveted rolling-packed structure, resisting mild corrosion and washdowns while keeping the overall body shorter than a comparable ISO 6432 unit to save valuable mounting length. The piston relies on a heterogeneous two-way seal that retains an oil film for long service life, and fixed TPU bumper pads combined with a front-cover anti-impact pad soften the stroke-end impact.
With a 300 mm stroke and a 1/4" port, this specific SKU lacks the -S magnet and therefore cannot accept CMSG, DMSG, or EMSG position switches. For real-world sizing, plan for roughly 377 N of usable work at 0.5 MPa, which translates to lifting about 32 kg vertically with a 2:1 safety margin. The rear of the cylinder uses a CM round-end cover, and the male rod thread is M14x1.5.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300CM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300CM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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.
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 MF32-40 Stainless Steel Mini Cylinder MF40X300CM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 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 MF32-40 Stainless Steel Mini Cylinder MF40X300CM Is Used
Carton Diverting
Pushes heavy cardboard cartons across a packaging transfer line using the full 628.3 N thrust at 0.5 MPa.
Pallet Positioning
Shifts loaded pallets into a wrapping station, utilising the 300 mm stroke and CM round-end cover for pivot mounting.
Material Pressing
Applies downward clamping pressure on composite wood panels, relying on the fixed TPU bumper pads to absorb the end-of-stroke impact.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300CM the Right Cylinder?
When sizing this 40 mm bore, verify your actual load requirements against the available thrust. If 628.3 N at 0.5 MPa is excessive for your fixture, stepping down to the MF32 provides 402.2 N of push force; since 40 mm is the largest available MF bore, any requirement beyond 879.6 N at 0.7 MPa will require a different cylinder family entirely. Because this SKU lacks the -S magnet, you must choose an external mechanical limit switch or proximity sensor if position feedback is required.
For the 300 mm stroke, carefully manage side loads to prevent rod bending and premature seal wear. Furthermore, a plain double-acting cylinder naturally drifts when air pressure is lost or the valve is centred, as the fixed TPU bumpers only decelerate the stroke end and act as neither a brake nor a lock. To suspend a load safely during an emergency stop, integrate an external pilot-operated check valve or a dedicated rod lock.
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 MF32-40 Stainless Steel Mini Cylinder MF40X300CM 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, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum force of 128.1 kgf at 1.0 MPa.
No, because this specific SKU does not include the -S magnet, it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for internal sensing. The unit also features a CM round-end rear cover and a shorter JIS body than an ISO 6432 cylinder.
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Covers non-human-caused product damage.
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