Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-30
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-30 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 60mm 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
- Stroke60 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 MFCJ40X60-30
Tune both the extend end-point and the end-of-stroke shock on-site with this 40 mm bore adjustable-stroke cylinder. The external adjuster shortens the extend stroke by up to 30 mm (usable range 30-60 mm), while the needle variable air cushion at both ends soaks up high-speed kinetic energy. It delivers a robust 628.3 N push force at 0.5 MPa.
Built as a JIS-standard round-body mini with a SUS304 stainless barrel and riveted aluminium covers, the unit is shorter than an ISO 6432 cylinder for the same envelope, saving mounting length. It uses a 1/4" port and a 16 mm rod. Note this SKU lacks the -S magnet, so it cannot take CMSG/DMSG/EMSG sensors. Expect a safe working load around 377 N, or vertical lifts of about 32 kg with a 2:1 margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-30 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-30 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 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 MFCJ40X60-30
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×60 | 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 MFCJ40X60-30 Is Used
Press Fit Tuning
Dial in the exact 30-60 mm extend position for light-duty press fits, using the 628.3 N push force to seat components while the air cushion prevents harsh impact.
Divertor Stroke Setup
Adjust the extend length on the fly during conveyor changeovers, absorbing high-speed stopping shock with the variable cushion to protect the 40 mm bore mechanism.
Lab Test Actuator
Safely probe test subjects by shortening the stroke window to 30 mm, leveraging the SUS304 stainless body for washdown resistance in lab environments.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-30 the Right Cylinder?
When sizing, compare this MFCJ40 pushing 628.3 N at 0.5 MPa against the MFCJ32 at 402.2 N. Choose the 40 mm bore if your changeover rig or trial fixture needs to move heavier payloads at speed, and rely on the 30 mm adjuster to dial in the exact extend position without machining spacers. The variable air cushion is ideal for shock-sensitive trial fits.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB). Because this is a non-magnet SKU, position sensing is unavailable; add the -S variant for CMSG/DMSG/EMSG switches. The cushion only decelerates near stroke end—it is not a lock. For holding a load on air loss, install an external rod lock or pilot check valve.
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 MFCJ40X60-30 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, or 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. It features a variable air cushion at both ends and operates at 30-800 mm/s.
No, this specific SKU lacks the -S magnet and cannot accept CMSG, DMSG, or EMSG sensors. The external adjuster shortens the extend stroke by up to 30 mm, but the cylinder does not hold position on air loss; use an external rod lock for holding.
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