Airtac MFCJ Adjustable Mini Cylinder MFCJ40X50-10
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X50-10 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 MFCJ40X50-10
Dial in exact end positions and absorb high-speed shock with the AirTAC MFCJ40X50-10. This double-acting JIS-standard round-body mini cylinder uses a 1/4 inch port and a 16mm rod to deliver 628.3N of push force at 0.5MPa. An external adjuster shortens the extend stroke by up to 10mm on-site, giving you a usable 40-50mm range for precise trial fits. Needle-set variable air cushions at both ends soak up end-of-stroke impact.
Built with a SUS304 stainless barrel and riveted aluminium covers, the body is shorter than an ISO 6432 cylinder for the same 40mm bore and 50mm stroke, saving valuable mounting length while resisting mild washdown. With a 0.5MPa push force of 628.3N, this unit provides a safe working load of about 377N and lifts roughly 32kg 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 MFCJ40X50-10 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X50-10 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MFCJ40X50-10
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MFCJ40X50-10 Is Used
High-Speed Component Pressing
Use the 10mm stroke adjuster to set exact 40-50mm extend depths for pressing bearings, relying on the variable air cushion to absorb the 628.3N impact at rapid cycle speeds.
Package Diverting
Fine-tune the actuator reach on sorting lines while the needle cushions damp the 527.8N retract shock, preventing conveyor damage during fast changeovers.
Carton Forming Stops
Adjust the end-stop on the fly for varying carton sizes; the SUS304 barrel handles mild washdown while the cushion ensures quiet, smooth stops at 800mm/s.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X50-10 the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need extra muscle: the 40mm bore pushes 628.3N at 0.5MPa compared to 402.2N for the 32mm bore. The 10mm adjustable window and twin variable air cushions make this size ideal for high-speed changeovers where both the exact extend position and end-of-stroke shock need tuning. Mount via LB foot, FA flange or TC trunnion (no SDB or back-cover option exists).
Remember that the air cushion only decelerates the piston near the end of its travel; it does not lock or hold the load. If air pressure drops, the piston will drift. For suspended loads, install an external rod lock or pilot-operated check valve. Because this specific SKU lacks a magnet, add the -S variant if you require 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 MFCJ40X50-10 FAQ
This 40mm bore cylinder features a 1/4 inch port and a 16mm rod with an M14x1.5 male thread. It generates 628.3N push and 527.8N pull at 0.5MPa, 879.6N push and 738.9N pull at 0.7MPa, with a theoretical maximum of 128.1kgf at 1.0MPa.
The external adjuster only shortens the extend stroke by up to 10mm; it is not a mid-stroke lock. The variable air cushion decelerates the piston but does not hold the load on air loss. This specific SKU has no -S magnet and cannot take CMSG, DMSG or EMSG sensors.
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.
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