Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-50
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-50 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 MFCJ40X150-50
Tune your extend end-position by up to 50 mm on site with the AirTAC MFCJ40X150-50. This double-acting, JIS-standard round-body mini cylinder pairs that external adjuster with a variable needle air cushion at both ends to soak up high-speed shock.
The SUS304 stainless steel barrel and riveted aluminium covers yield a body shorter than an ISO 6432 unit for the same 40 mm bore and 150 mm stroke. Delivering 628.3 N of push force at 0.5 MPa (with a 1/4" port and M14x1.5 male rod thread), it yields a safe working load of about 377 N or roughly 32 kg of vertical lift with a 2:1 margin. Note this SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG sensors.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-50 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-50 |
|---|---|
| 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 MFCJ40X150-50
| 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 MFCJ40X150-50 Is Used
High-Speed Machining Clamps
Dial in the 100-150 mm extend during tooling changeovers and let the needle cushion absorb shock when clamping heavy cast parts at full speed.
Package Diverters
Adjust the pusher stroke by up to 50 mm for varied box sizes while the cushion ensures quiet, impact-free stops during rapid sorting.
Pallet Load Stops
Use the 628.3 N push force to halt heavy pallets, fine-tuning the stop position on site without re-mounting the cylinder.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X150-50 the Right Cylinder?
When sizing these adjustable-stroke units, compare the real thrust: this 40 mm bore pushes 628.3 N at 0.5 MPa, whereas the MFCJ32 provides 402.2 N. Choose the 40 mm bore if your changeover or trial-fit machinery needs to move heavier fixtures at speed, relying on the needle cushion to decelerate the 100-150 mm usable extend smoothly.
Mount via LB foot, FA flange, or TC trunnion (there is no SDB or back-cover option here). Because the adjuster and cushion only manage motion and end-position, they will not hold a load on air loss—the piston drifts; integrate an external rod lock or pilot check valve for suspended loads.
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 MFCJ40X150-50 FAQ
This 40 mm bore cylinder uses a 1/4" port and a 16 mm rod with an M14x1.5 male thread. It pushes 628.3 N and pulls 527.8 N at 0.5 MPa; at 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical max force is 128.1 kgf at 1.0 MPa, with a speed range of 30-800 mm/s.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG, or EMSG magnetic switches. You must select an -S variant to enable sensing, while still using the external adjuster to shorten the extend stroke by up to 50 mm.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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