Airtac MFCJ Adjustable Mini Cylinder MFCJ20X225-100
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X225-100 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 225mm 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
- Stroke225 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 MFCJ20X225-100
Dial in the extend stroke by up to 100 mm on site with this double-acting, variable-cushion JIS-standard round-body mini cylinder. The external adjuster shortens the extend end from its 225 mm maximum down to 125 mm, while needle air cushions at both ends soak up high-speed shock. An 8 mm rod and 1/8" port handle a 157 N push force at 0.5 MPa, yielding a safe working load of about 94 N or an 8 kg vertical lift with a 2:1 margin.
Built with a SUS304 stainless barrel and riveted aluminium covers, the body is shorter than an ISO 6432 cylinder for the same bore and stroke, saving mounting length while resisting mild washdown corrosion. Note this SKU lacks a magnet, so it cannot take a position switch. The cushions only decelerate the piston near stroke end; they do not lock or hold the load on air loss.
Airtac MFCJ Adjustable Mini Cylinder MFCJ20X225-100 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X225-100 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 225 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 MFCJ20X225-100
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×225 | 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 MFCJ20X225-100 Is Used
Light Parts Ejection
Tunes the extend stroke by up to 100 mm to strike plastic parts cleanly at high speed, using the variable air cushion to prevent end-of-stroke bounce.
Package Diverter
Pushes light cartons with a 94 N safe working load, adjusting the reach on the fly during format changeovers without swapping the cylinder.
Lab Test Actuator
Provides a compact, washdown-resistant SUS304 body for benchtop trials, letting operators set exact extend positions for delicate sensing probes.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ20X225-100 the Right Cylinder?
When sizing, compare this 20 mm bore against the larger MFCJ25, which delivers 245.3 N of push force at 0.5 MPa versus the 157 N generated here. Choose the 20 mm bore when space is tight and the load is light; step up to the 25 mm bore if you need extra thrust. The 100 mm adjustable window is perfect for changeovers where the exact extend position and end-of-stroke shock both need tuning during commissioning.
Mounting options include LB foot, FA flange, and TC trunnion (there is no SDB or back-cover mount on this adjustable build). Because this specific SKU has no -S magnet, it cannot accept CMSG, DMSG, or EMSG sensors. If the application requires the piston to hold its place during air loss, add an external rod lock or pilot check valve, as the air cushion only decelerates and never brakes.
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 MFCJ20X225-100 FAQ
This 20 mm bore cylinder features an 8 mm rod, an M8x1.25 male thread, and a 1/8" port. 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. Operating pressure is 0.15-1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. The external adjuster shortens the extend stroke by up to 100 mm, and the variable air cushion only decelerates the piston; neither feature locks the rod in place.
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.
Related AirTAC MFCJ Cylinders
Request a Quote for Airtac MFCJ Adjustable Mini Cylinder MFCJ20X225-100
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.