Airtac MF32-40 Stainless Steel Mini Cylinder MF40X15SCM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X15SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 15mm 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
- Stroke15 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 MF40X15SCM
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting actuator is built around a SUS304 stainless steel barrel with riveted aluminium covers. The MF40X15SCM features a 15 mm stroke, a built-in magnet for position sensing, and a CM round-end rear cover. Its 1/4" port and M14x1.5 male rod thread ensure robust pneumatic and mechanical connections for heavy-duty miniature tasks.
Because the JIS-standard round body is physically shorter than a comparable ISO 6432 cylinder, it saves valuable mounting length in tight machinery. The piston relies on a two-way oil-retaining seal for long life, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts. Plan for roughly 377 N of actual work at 0.5 MPa, which means it can safely lift about 32 kg vertically with a 2:1 safety margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X15SCM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X15SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 MF40X15SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 MF40X15SCM Is Used
Short-Stroke Clamping
Ideal for locking heavy cast metal parts in CNC milling fixtures, using the 628.3 N push force to secure the workpiece against cutting forces.
Carton Flap Folding
Provides the rapid 15 mm punch needed to tuck corrugated cardboard flaps on high-speed packaging lines prior to tape sealing.
Component Seating
Presses bearings or bushings into housings on automated assembly lines, relying on the SUS304 barrel to withstand light washdown.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X15SCM the Right Cylinder?
When sizing this 40 mm bore unit, stepping down to the MF32 yields 402.2 N of push force at 0.5 MPa, while the MF40 represents the largest available bore in this series with a 128.1 kgf theoretical maximum at 1.0 MPa. If your assembly drops air pressure or the valve centres, this cylinder will drift and cannot hold a suspended load—the internal bumpers only decelerate the stroke end, so add an external rod lock or pilot check valve for secure positioning.
The included -S magnet allows seamless mounting of CMSG, DMSG, or EMSG reed and electronic switches. The CM round-end back cover suits pivot-style installations, and for this very short 15 mm stroke, side-load stress on the rod is minimal compared to longer extensions.
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 MF40X15SCM FAQ
This 40 mm bore cylinder uses a 1/4" port and generates 628.3 N push and 527.8 N pull at 0.5 MPa. At 0.7 MPa it provides 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, the base MF uses fixed TPU bumper pads that decelerate the stroke end but are not adjustable. For adjustable cushioning, look at the MFC variant. This model's JIS-standard round body is also shorter than an ISO 6432 cylinder, saving mounting length.
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1-Year Warranty
Covers non-human-caused product damage.
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