Airtac MFCJ Adjustable Mini Cylinder MFCJ40X40-10
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X40-10 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 40mm 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
- Stroke40 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 MFCJ40X40-10
Dial in exact end positions and absorb high-speed impact with the AirTAC MFCJ40X40-10, a JIS-standard round-body mini cylinder. The external adjuster shortens the extend stroke by up to 10 mm on-site, while needle valves set a variable air cushion at both ends to decelerate the load smoothly. Built with a SUS304 stainless barrel and riveted aluminium covers, this double-acting actuator resists mild corrosion and washdown. It also features a shorter body than an ISO 6432 cylinder for the same 40 mm bore and stroke, saving valuable mounting length.
Driven by a 16 mm rod and a 1/4" port, this 40 mm bore generates 628.3 N of push force at 0.5 MPa. That translates to a safe working load of roughly 377 N, or vertical lifts of about 32 kg with a 2:1 margin. Note this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. The cushion only decelerates the piston near stroke end—it is not a lock, so fit an external rod lock or pilot check valve if you need to hold a load on air loss.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X40-10 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X40-10 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 MFCJ40X40-10
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 MFCJ40X40-10 Is Used
High-Speed Component Press
Use the 628.3 N thrust to seat bearings, then dial the 10 mm stroke adjuster to prevent over-travel while the variable air cushion absorbs the 800 mm/s impact.
Pallet Diverter Arm
Divert heavy loads on a line by leveraging the 32 kg vertical lift capacity, tuning the needle cushion to silently stop the diverter at the end of each stroke.
Carton Flap Folder
Fold heavy cardboard flaps precisely by shortening the extend stroke on-site to match varying box heights, relying on the 1/4" port for rapid actuation.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X40-10 the Right Cylinder?
Choose between the two available bores based on your force requirements. The MFCJ40 delivers 628.3 N push and 527.8 N pull at 0.5 MPa, whereas the smaller MFCJ32 provides 402.2 N push. Pick the 40 mm bore when moving heavier trays or fixtures, and use the 10 mm adjustable window to perfect the extend endpoint during trial fits or high-speed changeovers. The variable air cushion is essential here, letting you tune end-of-stroke shock without adding hard bumpers.
For mounting, select LB foot, FA flange, or TC trunnion brackets (SDB and back-cover options are unavailable on this adjustable build). Because this base model has no internal magnet, position sensing is impossible. If your sequence control requires end-of-stroke feedback, step up to an -S variant to enable CMSG, DMSG, or EMSG switches.
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 MFCJ40X40-10 FAQ
This 40 mm bore cylinder uses a 1/4" port and a 16 mm rod. 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.
No, this specific SKU lacks the -S magnet and cannot accept CMSG, DMSG, or EMSG switches. The external adjuster shortens the extend stroke by up to 10 mm, and the variable air cushion decelerates the piston, but neither feature acts as a mid-stroke lock or position hold.
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 MFCJ40X40-10
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.