Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100U
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100U is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 100mm 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
- Stroke100 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 MF40X100U
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 steel barrel with riveted aluminium covers that resist mild corrosion and washdown. The MF40X100U features a U flat-end back cover and a 1/4" port. Because the JIS-standard round body is physically shorter than an ISO 6432 cylinder for the same 100 mm stroke, it saves valuable mounting length in tight fixtures.
The piston relies on a heterogeneous two-way seal that retains an oil film for long life, while fixed TPU bumper pads and a front-cover anti-impact pad soften the stroke-end impact. Plan for roughly 377 N of actual work at 0.5 MPa, which translates to lifting about 32 kg vertically with a 2:1 safety margin. Note that this SKU lacks a magnet, so it cannot accept CMSG, DMSG or EMSG position switches without upgrading to the -S variant.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100U Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100U |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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 MF40X100U
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 MF40X100U Is Used
Pallet Diverting Gate
Actuates a routing flap on a 30 kg pallet line, using the 628.3 N thrust to push heavy wood skids smoothly into a packaging lane.
Press Fit Bushing
Drives small bronze bearings into aluminium housings on an assembly press, relying on the 100 mm stroke and fixed TPU pads to absorb the end impact.
Carton Flap Folder
Folds heavy corrugated cardboard flaps on a washdown packaging line, where the SUS304 barrel withstands daily cleaning and the U flat-end cover mounts flush to the frame.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100U the Right Cylinder?
When sizing this 40 mm bore, stepping down to the MF32 yields 402.2 N of push at 0.5 MPa, while the MF40 is the largest available bore in the series at 628.3 N. If your valve centres or air supply drops, the piston will drift because the TPU pads only decelerate the end of travel rather than locking the rod; secure suspended loads with an external rod lock or pilot check valve. You can mount this unit using LB foot, FA flange, SDB pivot or TC trunnion brackets. For high-speed cycles generating heavy impact, consider the MFC variant for its adjustable air cushion, as the base MF relies solely on fixed bumpers.
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 MF40X100U FAQ
This 40 mm bore double-acting cylinder uses 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.
This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG or EMSG switches; you need the -S variant for sensing. The JIS-standard riveted round body is shorter than an ISO 6432 cylinder for the same 40x100 dimensions, saving mounting length without conforming to the ISO standard.
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Standard models are processed and dispatched in 3-5 business days.
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