Airtac MF32-40 Stainless Steel Mini Cylinder MF40X70SCM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X70SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 70mm 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
- Stroke70 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 MF40X70SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore mini cylinder is built around a SUS304 stainless barrel with riveted aluminium covers. The rolling-packed structure resists mild corrosion and washdown, while the two-way piston seal retains an oil film for long service life. A 1/4" port supplies the 16 mm rod, and fixed TPU bumper pads soften the stroke-end impact.
Because the JIS-standard body is physically shorter than an ISO 6432 cylinder for the same 70 mm stroke, it fits tighter fixtures without sacrificing power. Plan for roughly 377 N of actual work at 0.5 MPa, or use it to lift about 32 kg vertically with a 2:1 safety margin. The built-in magnet enables CMSG, DMSG or EMSG switches, and the CM round-end back cover simplifies rear pivot mounting.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X70SCM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X70SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 70 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 MF40X70SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×70 | 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 MF40X70SCM Is Used
Carton Diverter Arm
Pushes heavy cardboard cartons across a sorting belt using 628.3 N of thrust at 0.5 MPa without stalling under friction.
Press Fit Bushing
Seats bronze bushings into aluminium housings on an assembly line, using the 70 mm stroke and fixed TPU pads to absorb the end impact.
Pallet Stop Gate
Acts as a heavy-duty stopper for loaded pallets entering a stretch wrapper, holding position with a CMSG sensor via the internal magnet.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X70SCM the Right Cylinder?
At 0.5 MPa this 40 mm bore generates 628.3 N of push and 527.8 N of pull. If your fixture is overworked, the smaller MF32 provides 402.2 N of push; since 40 mm is the largest available MF bore, upgrading beyond 128.1 kgf at 1.0 MPa requires switching to a different series. The 1/4" port and M14x1.5 male rod thread are fixed for this size.
The standard bumper pads only decelerate the stroke end and do not act as a brake. If air pressure drops, the piston will drift, so fit an external rod lock or pilot-operated check valve for suspended loads. The -S magnet allows position sensing, and the CM back cover suits articulated rear pivot installations.
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 MF40X70SCM FAQ
The 40 mm bore has a 1/4" port and a 16 mm rod. 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.
The JIS-standard round body is shorter than an ISO 6432 cylinder for the same 70 mm stroke, saving mounting length. It uses fixed TPU bumper pads to decelerate the stroke end rather than an adjustable air cushion, and the SUS304 stainless barrel resists mild washdown.
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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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