Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CMH
The AirTAC MF32-40 Stainless Steel Mini Cylinder MF40X50CMH is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 MF40X50CMH
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting mini cylinder is built for demanding environments. The MF40X50CMH features a JIS-standard SUS304 stainless steel barrel with riveted aluminium covers, and because the body is shorter than a comparable ISO 6432 unit, it saves valuable mounting length in tight machinery. A Viton (FKM) -H seal equips this variant for elevated thermal demands, while the piston's two-way oil-retaining seal ensures long operational life.
The integrated fixed TPU bumper pads and front-cover anti-impact pad soften stroke-end impact without offering adjustable cushioning. Because this specific SKU lacks the -S magnet option, it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CMH Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CMH |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MF40X50CMH
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 (double rod, adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CMH Is Used
Injection Mould Unloading
Ejects hot plastic parts from moulding presses where the Viton -H seal survives ambient radiated heat, using the 628.3 N push force to break the part free.
Heavy Package Diversion
Actuates a heavy-duty routing gate on a packaging line, leveraging the 32 kg vertical lift capacity to pivot the diverter arm smoothly into place.
Textile Calendering
Tension and guide heavy fabric webs through heated rollers, taking advantage of the 50 mm stroke and SUS304 stainless construction to withstand humid, warm conditions.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CMH the Right Cylinder?
When sizing this 40 mm bore unit against the rest of the MF range, dropping down to the MF32 reduces the 0.5 MPa push force to 402.2 N, while the 40 mm bore itself is the largest available in this series, yielding a maximum theoretical output of 128.1 kgf at 1.0 MPa. If your fixture requires position feedback, you must select an -S designated model instead of this base unit, as a plain cylinder cannot host magnetic sensors.
This version features a CM round-end back cover and a 1/4 inch port. Note that standard double-acting cylinders drift when air pressure is lost or the valve is centred; the bumpers only decelerate the stroke end and do not function as a braking lock. To suspend a load safely, install an external pilot 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 MF40X50CMH FAQ
The 40 mm bore provides a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. At 0.7 MPa, push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. This unit uses a 1/4 inch air port and an M14x1.5 male rod thread.
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 sensing. The CM round-end back cover allows pivot mounting, and the fixed TPU bumpers absorb end-of-stroke impact without acting as an adjustable air cushion.
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1-Year Warranty
Covers non-human-caused product damage.
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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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