Airtac MF32-40 Stainless Steel Mini Cylinder MF40X170SCA
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X170SCA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 170mm 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
- Stroke170 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 MF40X170SCA
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore pneumatic mini cylinder is built around a JIS-standard round body. Its SUS304 stainless steel barrel and riveted aluminium covers shrug off mild corrosion and washdown environments. For the same 170 mm stroke, the MF body is physically shorter than a comparable ISO 6432 cylinder, saving valuable mounting length in tight machinery. The integrated -S piston magnet allows direct mounting of CMSG, DMSG, or EMSG switches for position sensing.
The piston relies on a heterogeneous two-way seal that retains an oil film for long service life, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts. Equipped with a CA pivot back cover, it yields a theoretical maximum of 128.1 kgf at 1.0 MPa. For practical actuation at 0.5 MPa, plan for about 377 N of usable work, which translates to lifting roughly 32 kg vertically with a 2:1 safety margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X170SCA Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X170SCA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 170 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 MF40X170SCA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×170 | 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 MF40X170SCA Is Used
Press Fit Tooling
Drives a 32 kg bearing housing into a machined fixture, utilizing the 628.3 N push force at 0.5 MPa to seat components without external hydraulics.
Pallet Diverter Arm
Swings a heavy routing gate along a packaging line via the CA pivot mount, with the shorter JIS body fitting neatly between adjacent conveyor frames.
Vertical Lift Gate
Raises a 30 kg access door on a material handling cell, staying within the safe 2:1 vertical lift margin while the DMSG sensor confirms the open position.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X170SCA the Right Cylinder?
When sizing this actuator, compare its 628.3 N push force at 0.5 MPa against the smaller MF32 bore, which provides 402.2 N under the same pressure. Since 40 mm is the largest available bore in the MF series, moving beyond this capacity requires a different cylinder family. The 1/4" port and M14x1.5 male rod thread are fixed to this bore size. With a 170 mm stroke, ensure your mounting arrangement minimizes side loads to prevent rod bending and premature seal wear.
This SKU features a CA pivot back cover for clevis mounting and an integrated magnet (-S) for CMSG, DMSG, or EMSG sensors. Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centred; the TPU bumpers only decelerate the stroke end and will not lock the load. To hold 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 MF40X170SCA 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. The air port is 1/4" and the male rod thread is M14x1.5.
No, the base MF uses fixed TPU bumper pads to decelerate the stroke end, not an adjustable air cushion (see the MFC variant for that). It is a JIS-standard round-body cylinder that is physically shorter than an ISO 6432 cylinder for the same bore and stroke, but it does not conform to the ISO 6432 mounting standard.
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1-Year Warranty
Covers non-human-caused product damage.
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