Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-40
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-40 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 MFCJ40X175-40
Dial in your extend stroke exactly where you need it with the AirTAC MFCJ40X175-40, a JIS-standard round-body mini cylinder built from a SUS304 stainless barrel and riveted aluminium covers. An external adjuster lets you shorten the extend end by up to 40 mm on site, giving a usable 135-175 mm range, while needle-set variable air cushions at both ends soak up high-speed shock. It delivers a robust 628.3 N push force at 0.5 MPa, making it a strong choice for heavier mid-scale tooling.
This 40 mm bore unit runs on a 1/4" port with a 16 mm rod and M14x1.5 male thread. For the same bore and stroke, this JIS body is shorter than an ISO 6432 cylinder, saving valuable mounting length while resisting mild washdown corrosion. Based on the 0.5 MPa push force, it handles a safe working load of about 377 N or lifts roughly 32 kg vertically with a 2:1 margin. Note this SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG sensors.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-40 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-40 |
|---|---|
| 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 MFCJ40X175-40
| 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 MFCJ40X175-40 Is Used
High-Speed Tooling Actuator
Drives heavy machining fixtures with a 628.3 N push force, using the 40 mm stroke adjuster to fine-tune the clamp extent and the air cushion to halt the 175 mm travel smoothly.
Dynamic Product Diversion
Routes dense packages on a conveyor by dialing the extend stroke to match varying product widths, relying on the variable cushion to absorb high-speed end-of-stroke impact.
Vertical Lift Stops
Lifts roughly 32 kg vertically with a 2:1 safety margin, using the adjustable 135-175 mm extend window to set precise lifting heights without re-engineering the mount.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-40 the Right Cylinder?
When sizing this series, compare the two bores directly: this 40 mm option pushes 628.3 N at 0.5 MPa, whereas the smaller MFCJ32 provides 402.2 N. Choose the 40 mm bore when moving heavier fixtures, and rely on the 40 mm adjustable window plus variable air cushion for high-speed changeovers or shock-sensitive trial fits where the exact end position and deceleration both need tuning. Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover code).
Remember that the adjustable stroke sets the end position and the air cushion only decelerates the piston near stroke end—neither acts as a brake. The piston will drift on air loss, so for suspended or gravity-loaded tooling, install an external rod lock or pilot-operated check valve. Because this specific code has no -S magnet, you must select an -S variant if your application requires position sensing.
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 MFCJ40X175-40 FAQ
This 40 mm bore double-acting cylinder features a 1/4" port, a 16 mm rod, and an M14x1.5 male 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 max of 128.1 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 40 mm on site (usable range 135-175 mm), while the needle-set variable air cushion at both ends decelerates the piston at high speeds. This SKU has no -S magnet, so it cannot accept position sensors; add the -S option for CMSG, DMSG, or EMSG switches.
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.
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Most inquiries answered within 7-8 hours.
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