Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-100S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-100S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 150mm 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
- Stroke150 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 MFCJ40X150-100S
Tune both the extend end-point and end-of-stroke shock precisely with this 40 mm bore adjustable-stroke mini cylinder. The external adjuster shortens the extend stroke by up to 100 mm on-site, while the needle-set variable air cushion at both ends soaks up high-speed impact. It delivers a 628.3 N push force at 0.5 MPa, yielding a safe working load of about 377 N or a 32 kg vertical lift with a 2:1 margin.
Built as a JIS-standard round-body unit with a SUS304 stainless barrel and riveted aluminium covers, the body is deliberately shorter than an ISO 6432 cylinder for the same stroke, saving valuable mounting length. This -S variant includes a piston magnet for CMSG, DMSG or EMSG sensors. It uses a 1/4" port, a 16 mm rod with an M14x1.5 male thread, and operates at 30-800 mm/s.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-100S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-100S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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 MFCJ40X150-100S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 MFCJ40X150-100S Is Used
High-Speed Diverters
Dial in the 50-150 mm extend reach and tune the needle air cushion to silently stop the 628.3 N push force when routing heavy packages.
Carton Forming Heads
Adjust the stroke end-point on the fly for different box sizes while the variable cushion absorbs the shock of rapid 30-800 mm/s motion.
Press Fit Tuning
Fine-tune the insertion depth during trial fits. The 40 mm bore provides a 32 kg vertical lift capacity with a 2:1 safety margin.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-100S the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need heavier thrust: the 40 mm bore pushes 628.3 N at 0.5 MPa compared to 402.2 N for the 32 mm bore. This larger bore is ideal for high-speed changeovers where the exact 50-150 mm extend position and the end-of-stroke deceleration both require on-site tuning. Note that the air cushion only decelerates the piston near the stroke end; it does not lock or hold the load. If air pressure drops, the piston will drift, so fit an external rod lock or pilot check valve for suspended loads.
Mounting options include LB foot, FA flange and TC trunnion (there is no SDB mount or back cover on this adjustable build). Because this is the -S magnet version, you can directly mount CMSG, DMSG or EMSG switches for 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 MFCJ40X150-100S FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod with an M14x1.5 thread. It generates a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. At 0.7 MPa, push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 100 mm, giving a usable 50-150 mm range, while the retract remains full. The variable air cushion at both ends decelerates the piston near the end of travel to reduce shock. This -S model includes a magnet for 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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