Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-20S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-20S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 200mm 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
- Stroke200 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM14×1.5
- 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 MFCJ40X200-20S
Dial in exact end positions and tame high-speed shock with the AirTAC MFCJ40X200-20S, a JIS-standard round-body mini cylinder built for 40 mm bores. An external adjuster lets you shorten the extend stroke by up to 20 mm on site, while needle-set variable air cushions at both ends soak up end-of-stroke impact. The SUS304 stainless barrel and riveted aluminium covers resist mild washdown, and the body is purposefully shorter than an ISO 6432 unit of the same bore and stroke, saving valuable machine space.
Delivering 628.3 N push and 527.8 N pull at 0.5 MPa, this double-acting actuator handles robust workloads. A practical safe working load is roughly 377 N, lifting about 32 kg vertically with a 2:1 margin. The 1/4" port and M14x1.5 male rod thread match the 40 mm bore class, and because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG or EMSG sensor switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-20S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-20S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 MFCJ40X200-20S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 MFCJ40X200-20S Is Used
High-Speed Product Diverting
Tune the 20 mm extend window and variable cushion to softly push 30 kg cartons at 800 mm/s without harsh end-of-stroke slamming on the line.
Adjustable Tooling Stops
Dial in the exact 180 to 200 mm extend position for changeovers, using the 628.3 N push force to positively lock heavy fixtures against a stop.
Sensitive Material Clamping
Leverage the needle air cushion to decelerate the 16 mm rod smoothly before clamping delicate packaging, preventing crushing while holding firmly.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-20S the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need extra muscle: the 40 mm bore pushes 628.3 N at 0.5 MPa compared to 402.2 N for the 32 mm variant. This makes the MFCJ40X200-20S ideal for heavier changeovers where you must tune both the extend end-point within the 20 mm window and the cushion needle for shock-sensitive trial fits. Speeds range from 30 to 800 mm/s.
Remember that the air cushion only decelerates the piston near the end of stroke; it is not a brake. If the load must be held during air loss or when a valve is centred, fit an external rod lock or pilot-operated check valve, as the piston will drift. Mounting options include LB foot, FA flange and TC trunnion (no SDB), and the -S magnet enables position sensing.
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 MFCJ40X200-20S FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod with an M14x1.5 male thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 20 mm on site, giving a usable extend range of 180-200 mm. The -S suffix means a piston magnet is built-in for CMSG, DMSG or EMSG switches. The variable air cushion only decelerates near stroke end and does not lock the load.
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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.
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Most inquiries answered within 7-8 hours.
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