Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-100S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-100S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 175mm 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
- Stroke175 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
- 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 MFCJ Adjustable Mini Cylinder MFCJ40X175-100S
Trimming the extend stroke by up to 100 mm on-site is effortless with this double-acting JIS-standard round-body mini cylinder. The MFCJ40X175-100S pairs that external adjuster with a variable air cushion at both ends, so you can dial in the end position and soak up high-speed shock simultaneously. Its SUS304 stainless barrel and riveted aluminium covers resist mild washdown corrosion, while the body is purposefully shorter than an ISO 6432 unit of the same bore and stroke.
In the 40 mm bore class, this cylinder delivers a robust 628.3 N push force at 0.5 MPa, making it suitable for heavier tooling. Because the -S magnet is present, you can mount CMSG, DMSG or EMSG sensors directly for position confirmation. The 1/4" port and M14x1.5 male rod thread handle the pneumatic and mechanical loads cleanly. For vertical lifting, it safely handles about 32 kg with a 2:1 margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-100S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-100S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| 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 | Variable air cushion, both ends |
| 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 MFCJ Adjustable Mini Cylinder MFCJ40X175-100S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 MFCJ Adjustable Mini Cylinder MFCJ40X175-100S Is Used
Adjustable Tooling Pusher
Dial in the exact 75-175 mm extend position for a machining fixture pusher, relying on the 628.3 N push force to seat heavy parts firmly.
High-Speed Divert Gate
Tune the 100 mm stroke window and needle air cushion to softly stop a fast divert gate, preventing product damage on packaging lines.
Vertical Lift Stopper
Lift a 32 kg pallet stopper on a conveyor using the 0.5 MPa thrust, using the -S magnet to confirm the raised position.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-100S the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need extra muscle: the 40 mm bore pushes 628.3 N at 0.5 MPa compared to 402.2 N for the 32 mm variant. This adjustable-stroke version shines in high-speed changeovers where you must tune both the extend length and the end-of-stroke deceleration. It is ideal for trial fits where the exact 75 to 175 mm extend position is unknown until the machine is running.
Mount this cylinder using LB foot, FA flange or TC trunnion brackets, as there is no SDB option. Remember that the variable air cushion only decelerates the piston near the end of its travel—it is not a brake. If your application must hold a load vertically during an air loss event, install an external rod lock or pilot check valve, because the piston will drift.
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 MFCJ Adjustable Mini Cylinder MFCJ40X175-100S FAQ
This 40 mm bore cylinder features a 1/4" port and an M14x1.5 male rod thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 100 mm on-site, while the variable air cushion at both ends decelerates the piston for smooth stops. The -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG sensors. The cushion only decelerates and does not lock the load.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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