Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 120mm 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
- Stroke120 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 MF40X120SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore pneumatic mini cylinder handles demanding actuation tasks. Because the MF body is shorter than an ISO 6432 cylinder for the same bore and stroke, it saves valuable mounting length in tight machinery. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments.
The piston relies on a heterogeneous two-way seal that retains an oil film for long service life, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts. Equipped with a built-in magnet (-S) and a CM round-end rear cover, it supports CMSG, DMSG, and EMSG position switches. For practical sizing, plan for roughly 377 N of real work at 0.5 MPa, which means it can safely lift about 32 kg vertically against gravity.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 120 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 MF40X120SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×120 | 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 MF40X120SCM Is Used
Package Diverting
Pushes heavy cartons off a main transport line using the 628.3 N push force at 0.5 MPa, with the 120 mm stroke clearing guide rails.
Pallet Stopper Arm
Acts as a robust pneumatic stop for incoming pallets on a roller conveyor, absorbing the impact via the fixed TPU bumper pads.
Clamp Actuation
Secures thick metal workpieces in a CNC machining fixture, taking advantage of the 32 kg safe vertical lift equivalent.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCM the Right Cylinder?
When sizing this 40 mm bore unit, consider the adjacent MF32 which provides 402.2 N of push at 0.5 MPa if your load is lighter. As 40 mm is the largest available MF bore, moving beyond this capacity requires a different cylinder family. This SKU includes the -S magnet for CMSG, DMSG, or EMSG sensors, and features a CM round-end back cover suitable for pivot mounting.
Note that a standard double-acting cylinder drifts when air pressure is lost or the valve is centred. The TPU bumpers only decelerate the piston near the stroke end and do not function as a locking brake. To suspend a load safely during an air loss event, integrate an external rod lock or a pilot-operated check valve into your circuit.
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 MF40X120SCM FAQ
This 40 mm bore cylinder features a 1/4" air port and an M14x1.5 male rod thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
The MF is a JIS-standard round-body cylinder that is physically shorter than an ISO 6432 unit, so it saves space but does not conform to ISO 6432 mounting standards. It uses fixed TPU bumper pads to decelerate the stroke end rather than an adjustable air cushion. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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