Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-75
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-75 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 MFCJ40X150-75
Tune both the extend end-point and the end-of-stroke deceleration on-site with this 40 mm bore, 150 mm stroke adjustable cylinder. A 75 mm external adjuster window lets you shorten the extend travel down to 75 mm, while the needle-set variable air cushion at both ends soaks up high-speed shock for smooth, quiet motion. The SUS304 stainless round body with riveted aluminium covers is JIS-standard, offering a shorter mounting length than an equivalent ISO 6432 cylinder and resisting mild washdown corrosion.
Delivering 628.3 N of push force and 527.8 N of pull force at 0.5 MPa (879.6 N / 738.9 N at 0.7 MPa), this double-acting actuator handles robust workloads. A practical computed buyer insight: this bore yields a safe working load of about 377 N (60% of the 0.5 MPa push figure), lifting roughly 32 kg vertically with a 2:1 safety margin. It uses a 1/4" port and a 16 mm rod with an M14x1.5 male thread. Note this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG or EMSG position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-75 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-75 |
|---|---|
| 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 MFCJ40X150-75
| 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 MFCJ40X150-75 Is Used
High-Speed Diverters
Dial in the 75 mm extend window to strike packages precisely while the variable air cushion arrests the 628.3 N thrust smoothly at 800 mm/s.
Press Fit Tuning
Adjust the end position on the fly for delicate trial fits. The needle cushion absorbs shock, protecting parts during high-speed insertion.
Vertical Lift Stops
Lifts about 32 kg safely. The 40 mm bore provides the power needed for elevation tasks, while the cushion prevents slamming at the top.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-75 the Right Cylinder?
When sizing between the two available bores, weigh the MFCJ40 against the MFCJ32. This 40 mm bore provides 628.3 N push at 0.5 MPa, a significant step up from the 32 mm bore's 402.2 N, making it the right choice when your payload approaches the 377 N safe working load threshold. Choose the MFCJ series specifically for high-speed changeovers or trial fits where you need to dial in the exact extend length within the 75 mm window and independently tune the needle air cushion to prevent end-stroke shock.
Remember that the air cushion only decelerates the piston near the end of travel; it does not function as a lock or brake. If the machine loses air, the piston will drift, so fit an external rod lock or pilot-operated check valve to hold a suspended load. For mounting, select LB foot, FA flange or TC trunnion brackets (SDB and back-cover mounts are unavailable on this adjustable build). If you need position sensing, switch to the -S magnet 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 MFCJ40X150-75 FAQ
This double-acting cylinder features a 40 mm bore, 16 mm rod and a 1/4" port. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 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 speed is 30-800 mm/s.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG or EMSG switches. You must select the -S variant for position sensing. The external adjuster shortens the extend stroke by up to 75 mm, and the variable air cushion decelerates the piston, but neither feature acts as a mid-stroke lock.
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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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