Airtac MFCJ Adjustable Mini Cylinder MFCJ20X160-40
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X160-40 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 160mm 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
- Stroke160 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 MFCJ20X160-40
Tune both the extend end-position and the end-of-stroke deceleration on-site with this JIS-standard round-body mini cylinder. The external adjuster shortens the extend stroke by up to 40 mm (usable range 120-160 mm), while the needle-set variable air cushion at both ends soaks up high-speed shock for smooth, quiet motion. It features an SUS304 stainless barrel with riveted aluminium covers, offering a shorter mounting length than an ISO 6432 cylinder for the same bore and stroke.
Operating at 0.15-1.0 MPa, this double-acting 20 mm bore unit pushes 157 N and pulls 131.9 N at 0.5 MPa via its 1/8" port. It yields a safe working load of roughly 94 N, lifting about 8 kg vertically with a 2:1 margin. Note this SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ20X160-40 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X160-40 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 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 MFCJ20X160-40
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×160 | 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 MFCJ20X160-40 Is Used
Light-Part Trial Fit
Dial in the 120-160 mm extend position during prototype changeovers, using the 40 mm adjuster to test multiple reach lengths without machining new mounts.
High-Speed Diverter
Push light packages at speed while the variable air cushion absorbs the end-of-stroke shock, preventing bounce on fast 157 N actuation strokes.
Compact Lift Stop
Lift roughly 8 kg loads vertically in tight cells where the shorter-than-ISO-6432 body saves valuable mounting space along the conveyor line.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ20X160-40 the Right Cylinder?
Choose between the 20 mm and 25 mm bores based on your force requirements: this MFCJ20 provides 157 N push at 0.5 MPa, while the larger MFCJ25 delivers 245.3 N. The adjustable stroke and dual variable air cushions shine in high-speed changeovers or shock-sensitive trial fits where you need to dial in the exact 120-160 mm extend position and deceleration without swapping cylinders.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover). Because this is a non-magnet SKU, skip position sensing or upgrade to an -S variant. The cushion only decelerates near the 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 MFCJ20X160-40 FAQ
This 20 mm bore cylinder uses a 1/8" port and an 8 mm rod. At 0.5 MPa it pushes 157 N and pulls 131.9 N. At 0.7 MPa it pushes 219.8 N and pulls 184.7 N. The theoretical max force is 32 kgf at 1.0 MPa.
This specific SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG switches. The external adjuster shortens the extend stroke by up to 40 mm (usable 120-160 mm), and the variable air cushion at both ends decelerates the piston near stroke end—it is not a mid-stroke lock or brake.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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