Airtac MF32-40 Stainless Steel Mini Cylinder MF40X450U
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X450U is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 450mm 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
- Stroke450 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 MF40X450U
Generating 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore cylinder is built for substantial actuation tasks. The SUS304 stainless steel barrel and riveted aluminium covers form a JIS-standard round body that is physically shorter than a comparable ISO 6432 unit, yielding a tangible packaging advantage in tight machinery. A two-way oil-retaining piston seal ensures long-term lubrication, while fixed TPU bumper pads and a front-cover anti-impact pad absorb stroke-end shock.
With a 450 mm stroke and a 1/4" port, the unit provides an effective vertical lift capacity of about 32 kg when applying a 2:1 safety margin to the 0.5 MPa output. For continuous duty, plan for a working load of roughly 377 N, which represents sixty percent of the rated push force. This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG position switches; the -S variant is required for sensing.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X450U Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X450U |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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 MF40X450U
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 MF40X450U Is Used
Pallet Diversion
Pushes heavy wooden pallets sideways onto a secondary packaging line using the full 628.3 N push force at 0.5 MPa.
Press Fit Bushings
Drives bronze bushings into aluminium housings on an assembly fixture, relying on the compact JIS body length to fit within the press frame.
Tote Stack Ejection
Ejects filled material totes from a robotic cell, utilizing the 450 mm stroke to clear the work zone completely before the next cycle.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X450U the Right Cylinder?
When sizing this 40 mm bore unit, verify whether the 628.3 N output at 0.5 MPa exceeds your actual needs, as stepping down to the MF32 yields 402.2 N and saves space. Since 40 mm is the largest available MF bore, heavier loads require parallel cylinders or a larger series. The U flat-end back cover suits direct rear mounting, and you can utilize LB foot, FA flange, SDB pivot, or TC trunnion brackets. Because this SKU lacks the -S magnet, position sensing is impossible without changing to an -S model.
At 450 mm of travel, the Ø16 rod is susceptible to bending under severe side loads, so guide the payload externally to prevent seal damage. Furthermore, the fixed TPU bumpers only decelerate the stroke end; they do not function as a brake. If the load must remain suspended during air loss or valve centering, the piston will drift, dictating the use of an external rod lock or a pilot-operated check valve.
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 MF40X450U FAQ
This 40 mm bore double-acting cylinder features a 1/4" port and an M14x1.5 male rod thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include a piston magnet, so CMSG, DMSG, or EMSG switches cannot be used. You must select the -S variant for position sensing. The unit features a U flat-end cover and is shorter than an ISO 6432 cylinder of the same bore and stroke.
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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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