Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40 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 MFCJ40X200-40
Dial in the exact extend end-point on site with the AirTAC MFCJ40X200-40, a JIS-standard round-body mini cylinder featuring a 40 mm adjustable stroke window. This double-acting actuator uses an external adjuster to shorten the extend stroke from its 200 mm maximum down to 160 mm, while the retract stroke remains full length. The SUS304 stainless steel barrel and riveted aluminium covers deliver mild corrosion and washdown resistance, and the body is noticeably shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length.
Driven by a 40 mm bore and a 1/4" port, it generates 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. A needle-set variable air cushion at both ends soaks up high-speed end-of-stroke shock for smooth, quiet motion across the 30-800 mm/s speed range. For sizing, this yields a safe working load of about 377 N, meaning it lifts roughly 32 kg vertically with a 2:1 safety margin. Note this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40 |
|---|---|
| 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 MFCJ40X200-40
| 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 MFCJ40X200-40 Is Used
High-Speed Diverting
Tunes the 160-200 mm extend stroke and dials in the needle air cushion to softly stop heavy 30 kg product diverters without slam-bang shock.
Trial Fit Assembly
Perfect for prototype stations where the exact 628.3 N push end-point needs on-site adjustment during changeovers before finalizing hard stops.
Carton Forming
Handles fast packaging cycles by absorbing the 879.6 N peak force at 0.7 MPa with its variable air cushion, preventing cover damage on the 200 mm return.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-40 the Right Cylinder?
When choosing between the two available bores, the MFCJ40 provides 628.3 N of push force at 0.5 MPa compared to the 402.2 N offered by the MFCJ32, making this 40 mm bore the right pick for heavier high-speed changeovers and shock-sensitive trial fits. The 40 mm adjustable window is ideal for commissioning machinery where the exact extend position must be fine-tuned on the floor without machining spacers, and the variable air cushion lets you set the exact deceleration rate at both ends.
Remember that the air cushion only decelerates the piston near the stroke end; it is not a brake. Because a plain cylinder does not hold its load on air loss or when the valve is centered, you must add an external rod lock or a pilot-operated check valve for suspended loads. For mounting, select from LB foot, FA flange, or TC trunnion brackets (there is no SDB or back-cover option on this build). If you need position feedback, switch to the -S magnet variant to enable CMSG, DMSG, or EMSG sensors.
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 MFCJ40X200-40 FAQ
This 40 mm bore cylinder features a 1/4" air port and a 16 mm rod with an M14x1.5 male thread. It delivers 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 40 mm on site, giving a usable 160-200 mm range. The variable air cushion at both ends decelerates the piston near the ends to absorb high-speed shock. Note this SKU lacks the -S magnet, so it cannot accept position 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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