Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CATC
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CATC is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 20mm 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
- Stroke20 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 MF40X20CATC
Delivering 628.3 N of push force at 0.5 MPa, the AirTAC MF40X20CATC is a JIS-standard round-body mini cylinder built for demanding short-stroke tasks. The SUS304 stainless steel barrel and riveted aluminium covers shrug off mild corrosion and washdown environments. Inside, a two-way oil-retaining seal keeps the piston lubricated for a long service life. Because this 40 mm bore design is physically shorter than a comparable ISO 6432 cylinder, it saves valuable mounting length in tight machinery.
This double-acting actuator uses fixed TPU bumper pads and a front-cover anti-impact pad to soften stroke-end impact. For practical sizing, plan for a safe working load of about 377 N, which comfortably lifts a 32 kg part vertically with a 2:1 safety margin. It features a 1/4 inch air port and an M14x1.5 male rod thread. Note that this specific 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 MF40X20CATC Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CATC |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 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 MF40X20CATC
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×20 | 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 MF40X20CATC Is Used
Short-Stroke Stamping
Applies 628.3 N of force at 0.5 MPa to press small metal or plastic components into fixtures without requiring a full-scale press.
Pivoting Diverter Gate
Uses the CA pivot cover and TC trunnion mount to swing a heavy routing flap on a packaging line, securely handling the side loads of the arc.
Vertical Parts Lift
Raises 32 kg product trays vertically in a compact cell, taking advantage of the JIS short-body dimensions to fit within tight vertical spaces.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CATC the Right Cylinder?
When sizing this 40 mm bore actuator, compare its 628.3 N push force at 0.5 MPa against the smaller MF32, which provides 402.2 N. Since 40 mm is the largest available MF bore, moving beyond this capacity requires a different cylinder family. The MF40X20CATC includes a CA pivot back cover and uses a TC trunnion mount, making it ideal for pivoting loads where the rod needs to swing through an arc.
Because this is a double-acting cylinder with fixed bumpers, it will drift if air pressure drops or the valve is centred. The bumpers only decelerate the piston near the stroke end; they do not function as a brake. To prevent movement on a vertical or suspended load, install an external rod lock or a pilot-operated check valve. The very short 20 mm stroke keeps rod bending stress minimal, even under high dynamic loads.
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 MF40X20CATC FAQ
At 0.5 MPa it provides 628.3 N push and 527.8 N pull. 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. This 40 mm bore cylinder uses a 1/4 inch air port and an M14x1.5 male rod thread.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the MF40X20CATC-S variant for sensing. It features a CA pivot back cover and TC trunnion mounting, and uses fixed TPU bumper pads rather than an adjustable air cushion.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CATC
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.