Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-20S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-20S 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 MFCJ20X60-20S
Dial in exact end positions and absorb high-speed shock with the AirTAC MFCJ20X60-20S. This double-acting JIS-standard round-body mini cylinder pairs a 20 mm on-site stroke adjuster with needle-set variable air cushions at both ends, letting you fine-tune the extend travel from 40 to 60 mm while keeping the full retract. Its SUS304 stainless barrel and riveted aluminium covers form a compact body that is physically shorter than a comparable ISO 6432 unit, saving valuable mounting length without claiming standard compliance.
Driven by a 20 mm bore and a 1/8" port, it delivers 157 N of push force at 0.5 MPa, making it a solid fit for lighter automation. The integrated -S magnet supports CMSG, DMSG, and EMSG switches for position sensing. Based on the 0.5 MPa thrust, you can expect a safe working load around 94 N, lifting roughly 8 kg vertically with a 2:1 margin. Note that the cushion only decelerates the piston near stroke end—it is not a lock, so add an external rod lock if you need to hold a load on air loss.
Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-20S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-20S |
|---|---|
| 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 MFCJ20X60-20S
| 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 MFCJ20X60-20S Is Used
Light-Part Trial Fit
Use the 20 mm adjuster to micro-tune the extend position during short-stroke assembly trials, relying on the 157 N push force to seat delicate components without overshooting.
High-Speed Diverter
Leverage the variable air cushions to silently stop the piston at high cycle speeds, gently pushing lightweight goods off a belt within the 40-60 mm travel window.
Carton Flap Tucking
Adjust the extend end on-site to match varying box sizes, using the 94 N safe working load to tuck flaps smoothly before the retract stroke begins.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ20X60-20S the Right Cylinder?
When sizing this series, compare the thrust directly: this 20 mm bore provides 157 N push at 0.5 MPa, whereas stepping up to an MFCJ25 yields 245.3 N. Choose the 20 mm bore for compact, lower-force tasks and use the 25 mm if your payload demands more push. The adjustable stroke and dual air cushions shine in high-speed changeovers or shock-sensitive trial fits where you must tune both the extend length and the end-of-stroke deceleration on the fly.
For mounting, select from LB foot, FA flange, or TC trunnion options (there is no SDB or back-cover code on this adjustable build). The included -S magnet means the cylinder is ready for CMSG, DMSG, or EMSG sensors out of the box. Remember that the external adjuster only shortens the extend stroke; it does not act as a mid-stroke brake.
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 MFCJ20X60-20S FAQ
This 20 mm bore cylinder uses a 1/8" port and an M8x1.25 male rod thread. It generates 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 maximum of 32 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 20 mm (usable range 40-60 mm), while the variable air cushions at both ends decelerate the piston at high speeds. The cushion is not a brake or lock; the piston will drift on air loss, so use an external rod lock for load holding. The built-in -S magnet supports CMSG, DMSG, and EMSG sensors.
Authorized Export Seller
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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