Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SCM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 350mm 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
- Stroke350 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 MF40X350SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty actuation within tight machinery envelopes. Because the SUS304 stainless steel barrel and riveted aluminium covers form a shorter physical body than an equivalent ISO 6432 unit, you save valuable mounting length. The internal piston relies on a two-way oil-retaining seal to sustain lubrication, while fixed TPU pads and a front-cover anti-impact pad absorb end-of-stroke shocks. This specific SKU includes a built-in piston magnet for position sensing and features a CM round-end rear cover.
Equipped with a 16 mm rod and a 1/4 inch air port, the unit operates at speeds from 30 to 800 mm/s. When sizing payloads, plan for roughly 377 N of actual work at 0.5 MPa to maintain a safe 60 percent margin. Alternatively, it can vertically lift about 32 kg when applying a 2:1 safety factor against gravity. The rugged stainless construction resists mild corrosion and washdown, making it highly durable for demanding industrial environments.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SCM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MF40X350SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MF40X350SCM Is Used
Stamping Press Ejection
Uses the 527.8 N pull force at 0.5 MPa to reliably extract heavy metal blanks from progressive die sets in automotive part fabrication.
Pallet Diverting Arm
Extends a 350 mm lever to push loaded packaging pallets onto a secondary packaging line, benefiting from the compact JIS body length.
Vertical Lift Gate
Raises a 30 kg material handling gate against gravity, safely operating within the calculated 32 kg vertical lift capacity at 0.5 MPa.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SCM the Right Cylinder?
Choosing this 40 mm bore provides maximum thrust for the MF family, stepping up significantly from the 32 mm bore which yields 402.2 N at 0.5 MPa. Since 40 mm is the largest available diameter in this series, exceeding this thrust capacity requires moving to a different cylinder family entirely. For your 350 mm stroke, ensure the mounting arrangement prevents excessive side-loading to avoid rod bending; LB foot, FA flange, or TC trunnion brackets help manage these leverage forces. The CM round-end back cover works well with rear pivot mountings.
Remember that the fixed TPU bumpers only decelerate the piston near the stroke ends and do not function as a lock. If air pressure drops or the directional valve is centred, the rod will drift and drop the load. To safely suspend a vertical weight, integrate an external pilot-operated check valve or a dedicated rod lock. The integrated -S magnet allows seamless installation of CMSG, DMSG, or EMSG reed and electronic switches for precise end-position confirmation.
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 MF40X350SCM FAQ
This 40 mm bore cylinder features a 1/4 inch air port and an M14x1.5 male rod thread. At 0.5 MPa it generates 628.3 N of push force and 527.8 N of pull force. At 0.7 MPa the push increases to 879.6 N and the pull to 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, the base MF uses fixed TPU bumper pads to decelerate the stroke end, not an adjustable air cushion; you would need the MFC variant for that. However, because this SKU includes the -S magnet, you can mount CMSG, DMSG, or EMSG switches directly onto the SUS304 stainless barrel for position detection.
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1-Year Warranty
Covers non-human-caused product damage.
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