Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-50
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-50 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 MFCJ40X175-50
Dial in exact end positions and absorb high-speed shock with the AirTAC MFCJ40X175-50. This double-acting, JIS-standard round-body mini cylinder features a 50 mm external adjuster that shortens the extend stroke on site, giving a usable extend range of 125-175 mm.
Built with a SUS304 stainless barrel and riveted aluminium covers, the body is shorter than an ISO 6432 cylinder for the same bore and stroke, saving mounting length while resisting mild washdown. The 40 mm bore runs on a 1/4" port and M14x1.5 male rod thread, delivering 628.3 N push force at 0.5 MPa. For sizing, expect a safe working load around 377 N, lifting about 32 kg vertically with a 2:1 margin. Note this SKU lacks the -S magnet, so it cannot take CMSG/DMSG/EMSG sensors.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-50 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-50 |
|---|---|
| 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 MFCJ40X175-50
| 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 MFCJ40X175-50 Is Used
High-Speed Diverters
Tune the 125-175 mm extend stroke and dial in the needle cushion to stop packages smoothly on fast conveyor lines without end-of-stroke slamming.
Trial Fit Assembly
Use the 50 mm adjuster to find the exact press position for new parts, absorbing shock during high-rate changeovers while moving loads up to 377 N safely.
Vertical Lift Stops
Lift approximately 32 kg with a 2:1 margin and fine-tune the extend end to prevent harsh impacts when raising or lowering light pallets.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-50 the Right Cylinder?
Choose this 40 mm bore over the MFCJ32 when you need more push force: the MFCJ40 delivers 628.3 N at 0.5 MPa compared to 402.2 N for the 32 mm version. The 50 mm adjustable window is perfect for high-speed changeovers or shock-sensitive trial fits where you must tune both the extend end position and the needle air cushion. Mount using LB foot, FA flange, or TC trunnion (no SDB or back-cover here).
Remember that the variable air cushion only decelerates the piston near stroke end; it is not a lock or brake. If your application must hold a load on air loss, add an external rod lock or pilot check valve, as the piston will drift. To add sensing later, switch to the -S magnet variant.
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 MFCJ40X175-50 FAQ
This 40 mm bore cylinder uses a 1/4" port. It delivers 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. Operating pressure is 0.15-1.0 MPa and speed is 30-800 mm/s.
The external adjuster shortens the extend stroke by up to 50 mm on site, while the variable air cushion at both ends decelerates the piston near stroke end to absorb shock. This specific SKU has no -S magnet, so it cannot take CMSG/DMSG/EMSG sensors; you need the -S variant for sensing.
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.
Related AirTAC MFCJ Cylinders
Request a Quote for Airtac MFCJ Adjustable Mini Cylinder MFCJ40X175-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.