Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40S 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 MFCJ40X200-40S
Dial in exact end positions and absorb high-speed shock with the AirTAC MFCJ40X200-40S, a JIS-standard round-body mini cylinder. An external adjuster shortens the extend stroke by up to 40 mm on-site, while needle air cushions at both ends decelerate the piston smoothly. Driven by a 1/4" port and Ø16 rod, it delivers 628.3 N push force at 0.5 MPa.
The SUS304 stainless barrel and riveted aluminium covers resist mild washdown corrosion, and the body is shorter than a comparable ISO 6432 unit, saving valuable machine space. This -S variant includes a piston magnet for CMSG, DMSG or EMSG sensors. Based on the 628.3 N push figure, it handles a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40S |
|---|---|
| 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 MFCJ40X200-40S
| 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 MFCJ40X200-40S Is Used
High-Speed Diverters
Tune the 40 mm extend window to match varying package sizes on the fly, relying on the variable air cushion to halt the 879.6 N peak force smoothly.
Press Fit Tuning
Perfect for trial changeovers where the exact 160-200 mm extend position needs micro-adjustments without re-piping the 1/4" air lines.
Vertical Lift Stops
Lifts about 32 kg vertically using the 0.5 MPa push force, with the adjustable stop letting you set precise raise heights for different rack tiers.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40S the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need extra muscle: the 40 mm bore yields 628.3 N push at 0.5 MPa versus 402.2 N for the 32 mm bore. The 40 mm adjustable window is ideal for high-speed changeovers where the exact extend endpoint and end-of-stroke shock both require field tuning. Mount via LB foot, FA flange or TC trunnion (no SDB or back-cover here).
The variable air cushion only decelerates the load near the stroke end; it does not function as a lock or brake. If air pressure drops, the piston will drift. To suspend a load safely, fit an external rod lock or pilot check valve. The built-in -S magnet supports CMSG, DMSG and EMSG switches for position confirmation.
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 MFCJ40X200-40S FAQ
This 40 mm bore cylinder uses a 1/4" port and a Ø16 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 max of 128.1 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 40 mm, giving a usable range of 160-200 mm. The needle variable air cushion at both ends decelerates the piston at high speed but does not lock the load. The -S suffix means it has a built-in magnet for CMSG, DMSG or 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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