Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-40
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-40 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 60mm stroke, 1/8" 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.
- BoreØ20 mm
- Stroke60 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- 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 MFCJ20X60-40
Dial in exact end positions and absorb high-speed impact with the AirTAC MFCJ20X60-40. This double-acting JIS-standard round-body mini cylinder features a 40 mm adjustable extend window (usable 20-60 mm) and variable air cushions at both ends. An external adjuster lets you shorten the extend stroke on-site, while the needle cushions soak up end-of-stroke shock for smooth, quiet operation.
Built with a SUS304 stainless steel barrel and riveted aluminium covers, it resists mild corrosion and washdowns while saving mounting length compared to an ISO 6432 unit. Delivering 157 N push at 0.5 MPa via a 1/8" port, it provides a safe working load around 94 N and lifts about 8 kg vertically with a 2:1 margin. Note this SKU lacks a magnet, so it cannot take position sensors.
Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-40 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-40 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 60 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MFCJ20X60-40
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | 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 MFCJ20X60-40 Is Used
Lightweight Trial Fits
Perfect for changeovers where the exact 20-60 mm extend position must be dialed in on-site without swapping cylinders, absorbing shock at speeds up to 800 mm/s.
Small Part Diverting
Handles light diverting tasks safely with a 94 N working load, using the needle cushion to quietly stop the 8 mm rod at high speed without slamming.
Thin Material Pushing
Ideal for pushing thin packaging flaps or cards where a 157 N push force suffices and the 40 mm adjuster window accommodates varying carton depths.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-40 the Right Cylinder?
Choose between the MFCJ20 and MFCJ25 based on your force needs. The MFCJ20 provides 157 N push at 0.5 MPa, while the larger MFCJ25 offers 245.3 N. This 20 mm bore is ideal for lighter high-speed changeovers where you need to tune both the extend stroke within the 40 mm window and the end-of-stroke cushioning.
Mount via LB foot, FA flange, or TC trunnion (no SDB). Because this specific SKU has no -S magnet, it cannot accept CMSG/DMSG/EMSG switches. Remember that the air cushion only decelerates the piston near stroke end—it is not a lock. If you need to hold a load vertically on air loss, add 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 MFCJ20X60-40 FAQ
This 20 mm bore cylinder uses a 1/8" port. It delivers 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical max of 32 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet (-S), so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. The 40 mm adjuster sets the extend end position but is not a mid-stroke lock.
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1-Year Warranty
Covers non-human-caused product damage.
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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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