Airtac MFCJ Adjustable Mini Cylinder MFCJ40X75-10
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X75-10 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X75-10
Tune your extend stroke precisely on-site with the AirTAC MFCJ40X75-10, a JIS-standard round-body mini cylinder built for high-speed automation. It features a 10 mm external adjuster that shortens the extend end down to 65 mm, paired with a variable air cushion at both ends to soak up end-of-stroke shock. The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdowns, while the body is intentionally shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length.
This double-acting 40 mm bore unit uses a 1/4" port and a 16 mm rod with an M14x1.5 male thread. It generates a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa, yielding a safe working load of about 377 N or a vertical lift capacity of roughly 32 kg with a 2:1 margin. Note that this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG sensors.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X75-10 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X75-10 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MFCJ40X75-10
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MFCJ40X75-10 Is Used
High-Speed Clamping
Ideal for clamping heavy machined parts, using the 10 mm stroke adjuster to dial in the exact grip position while the variable air cushion absorbs the 628.3 N high-speed impact.
Product Diverting
Handles robust diverting arms on packaging lines, where tuning the extend stroke prevents crushing goods and the cushion softens rapid 800 mm/s reversals.
Pallet Stops
Functions as a heavy pallet stopper, leveraging the 32 kg vertical lift capacity and adjusting the stop position on the fly to accommodate mixed pallet sizes.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X75-10 the Right Cylinder?
Choose the MFCJ40 over the smaller MFCJ32 when you need heavier push force, stepping up from 402.2 N to 628.3 N at 0.5 MPa. The adjustable 10 mm window is ideal for trial fits and high-speed changeovers where the exact extend position and end-of-stroke shock both need fine-tuning. Mounting options include LB foot, FA flange, and TC trunnion, with no SDB or back-cover option available on this build.
Remember that the air cushion only decelerates the piston near the stroke end and the adjuster sets the end position, neither acts as a mid-stroke lock. Because this plain cylinder does not hold its load on air loss and the piston will drift, install an external rod lock or pilot-operated check valve for suspended loads. If you require position sensing, select the -S magnet variant instead.
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 MFCJ40X75-10 FAQ
This 40 mm bore cylinder features a 1/4" port and generates a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. At 0.7 MPa, the push force is 879.6 N and the pull force is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external adjuster shortens the extend stroke by up to 10 mm on-site, giving a usable extend range of 65-75 mm, while the retract stroke remains full. This specific SKU does not have the -S magnet, so it cannot accept CMSG, DMSG, or EMSG sensors; you must select the -S variant for position sensing.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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