Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CA
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CA 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 MF40X20CA
Delivering 628.3 N of push force at 0.5 MPa, the AirTAC MF40X20CA is a 40 mm bore double-acting JIS-standard round-body mini cylinder engineered for very short travel. Because the riveted rolling-packed SUS304 stainless barrel and aluminium covers yield a shorter overall body than an ISO 6432 cylinder of the same bore and stroke, it slots neatly into tight machinery. The assembly resists mild corrosion and washdown, while the piston's two-way seal retains an oil film for long service life.
This specific configuration features a 20 mm stroke and a CA rear pivot cover. It uses fixed TPU bumper pads alongside a front-cover anti-impact pad to soften stroke-end impact, functioning as a decelerator rather than an adjustable cushion. 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. Air connects via a 1/4" port, and the 16 mm rod has an M14x1.5 male thread.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CA Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CA |
|---|---|
| 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 MF40X20CA
| 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 MF40X20CA Is Used
Short-Stroke Clamping
Ideal for locking heavy castings in CNC fixtures, using the 20 mm stroke to secure parts against machining vibration.
Package Diverting
Provides robust 628.3 N push force at 0.5 MPa to snap heavy cardboard cartons across high-speed sorting lanes.
Press Ejection
Ejects dense stamped metal components from a die bed, where the compact JIS body saves valuable press footprint.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X20CA the Right Cylinder?
When sizing this actuator, verify if the 628.3 N output at 0.5 MPa provides adequate thrust; stepping down to the 32 mm bore drops the push force to 402.2 N, while no larger MF bore exists if you need more power. The 20 mm stroke is ideal for high-cycle clamping, but because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches. If your sequence requires sensing, you must select the -S variant.
The CA pivot cover is designed for articulating rod-end loads, yet a plain cylinder will drift and cannot hold a load if air pressure drops or the valve is centred. The bumpers only decelerate the end of travel and act as neither a lock nor a brake. To suspend a vertical load safely, install an external pilot-operated check valve or a dedicated rod lock.
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 MF40X20CA FAQ
This 40 mm bore double-acting cylinder pushes with 628.3 N and pulls with 527.8 N at 0.5 MPa. At 0.7 MPa, push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. It uses a 1/4" air port and a 16 mm rod with an M14x1.5 male thread.
No, because this specific SKU lacks the -S suffix, it has no internal magnet and cannot accept CMSG, DMSG, or EMSG switches. The MF40X20CA-S variant is required for sensing. It features a SUS304 stainless barrel and 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 MF40X20CA
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.