Airtac MF32-40 Stainless Steel Mini Cylinder MF40X165SCM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X165SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 165mm 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
- Stroke165 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 MF40X165SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore mini cylinder handles heavy-duty positioning tasks. The JIS-standard round body is physically shorter than a comparable ISO 6432 unit for this 165 mm stroke, yielding a tangible packaging advantage in tight machinery. Its 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 prolonged lifespan, while fixed TPU bumper pads and a front-cover anti-impact pad soften end-of-stroke impacts. Because the code includes an S, a built-in magnet allows CMSG, DMSG or EMSG switches to track position. Plan for roughly 377 N of actual work at 0.5 MPa, which equates to lifting about 32 kg vertically with a 2:1 safety margin. Air connects via the bore-fixed 1/4 inch port.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X165SCM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X165SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 165 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 MF40X165SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×165 | 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 MF40X165SCM Is Used
Stamping Press Ejection
Uses the 628.3 N push force at 0.5 MPa to positively eject heavy stamped metal panels from a press die, absorbing end-of-stroke impact via the fixed TPU pads.
Pallet Diverting Arm
Extends 165 mm to actuate a routing arm on a high-speed packaging conveyor, where the shorter JIS body length prevents interference with adjacent guarding.
Vertical Carton Flap Folder
Folds heavy corrugated carton flaps downward, leveraging the 32 kg vertical lift capacity while the DMSG switch confirms the fold completion.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X165SCM the Right Cylinder?
When sizing this 40 mm bore, verify your actual load requirements: if 628.3 N at 0.5 MPa is excessive, the smaller MF32 provides 402.2 N; since 40 mm is the largest available MF bore, heavier loads require a different cylinder family. This SKU features the CM round-end back cover, so ensure your mounting interface accommodates that profile rather than a flat or pivot style. The integrated magnet (-S) supports CMSG, DMSG and EMSG sensors for position feedback.
Note that a standard MF cylinder will drift if air pressure is lost or the control valve is centred, as the fixed bumpers only decelerate the stroke end without locking the rod. To suspend a vertical load safely, install an external rod lock or a pilot-operated check valve. Furthermore, at a 165 mm stroke, minimize side-loading to prevent rod bending and premature seal wear.
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 MF40X165SCM FAQ
The 40 mm bore provides a push force of 628.3 N and a pull force of 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. The air port is a fixed 1/4 inch thread, and the male rod thread is M14x1.5.
No, the fixed TPU bumper pads only decelerate the piston near the stroke end and do not function as a brake. If air is lost or the valve is centred, the rod will drift. For vertical load holding, you must add an external rod lock or a pilot-operated check valve. The CM round-end back cover and SUS304 barrel offer washdown resistance.
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 MF40X165SCM
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.