Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CM 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 MF40X50CM
Generating up to 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty actuation in tight spaces. The 40 mm bore features a 1/4" port and an M14x1.5 male rod thread. Because the riveted rolling-packed SUS304 stainless barrel and aluminium covers are more compact, the overall body is noticeably shorter than a comparable ISO 6432 cylinder for the same 50 mm stroke. This packaging advantage fits tighter machine envelopes without sacrificing power.
The internal piston relies on a heterogeneous two-way seal that retains an oil film for extended lifespan, while fixed TPU bumper pads and a front-cover anti-impact pad absorb stroke-end shocks. Planning for around 377 N of actual work at 0.5 MPa leaves a safe operational margin, which translates to lifting roughly 32 kg vertically against gravity. The rear of the body uses a CM round-end cover, and since this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CM |
|---|---|
| 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 MF40X50CM
| 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 (adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CM Is Used
Stamping Pin Ejection
Provides the robust 628.3 N push force required to knock jammed stamping pins out of a heavy progressive die block.
Pallet Diverter Gate
Swings a heavy steel diverter gate on a packaging line, utilizing the compact JIS body to fit within narrow conveyor framing.
Carton Flap Folder
Drives a mechanical arm to fold heavy corrugated carton flaps prior to sealing, benefiting from the oil-retaining two-way seal for long life.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X50CM the Right Cylinder?
When sizing this 40 mm bore unit, consider the neighbouring MF32 which outputs 402.2 N at 0.5 MPa for lighter jobs; since 40 mm is the largest available MF bore, there is no larger standard option for loads exceeding the 628.3 N push rating. For this 50 mm stroke, side-load and rod-bending stresses are minimal, but always align the load carefully to avoid premature seal wear. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets to suit various frame designs.
Remember that a standard double-acting cylinder drifts when air supply is lost or the directional valve is centred—the fixed bumpers only decelerate the end of travel and do not function as a braking mechanism. If your application requires the load to be held rigidly in place during an air failure, install an external rod lock or a pilot-operated check valve in the air lines.
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 MF40X50CM FAQ
This 40 mm bore double-acting cylinder delivers a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. At 0.7 MPa, the push increases to 879.6 N and the pull to 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. It features a 1/4" air port and a 16 mm piston rod with an M14x1.5 male thread.
This specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG magnetic switches; you would need the -S variant for sensing. The CM designation indicates a round-end rear cover. Additionally, the fixed TPU bumper pads only soften the stroke end and do not act 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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