Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-30S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-30S 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 MFCJ40X200-30S
Trim the extend stroke by up to 30 mm on site and dial in a needle air cushion at each end to absorb high-speed shock with the AirTAC MFCJ40X200-30S. This JIS-standard round-body mini cylinder features a SUS304 stainless barrel and riveted aluminium covers, delivering a robust 628.3 N push force at 0.5 MPa through its 1/4" port.
Because the -S code includes a piston magnet, you can mount CMSG, DMSG or EMSG switches for precise end-position sensing. The body is notably shorter than an ISO 6432 cylinder for the same 40 mm bore and 200 mm stroke, saving valuable machine space. With a safe working load around 377 N, it lifts about 32 kg vertically with a 2:1 margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-30S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-30S |
|---|---|
| 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 MFCJ40X200-30S
| 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 MFCJ40X200-30S Is Used
High-Speed Diverters
Tune the 30 mm stroke window and needle cushion to softly stop packages moving at 800 mm/s without bounce.
Carton Forming Press
Apply 628.3 N of push force to fold flaps, adjusting the extend end precisely to accommodate varying box heights.
Component Seating Jig
Gently press bearings using the variable air cushion, relying on the -S magnet to confirm the exact end position.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X200-30S the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need serious thrust: the 40 mm bore pushes 628.3 N at 0.5 MPa compared to 402.2 N for the 32 mm variant. The external adjuster lets you fine-tune the usable extend from 170 to 200 mm, making it perfect for trial fits and changeovers where end-of-stroke shock also requires tuning via the variable air cushion.
Mount using LB foot, FA flange or TC trunnion brackets (no SDB option). Remember that the cushion only decelerates the piston near the end of travel—it is not a brake. If your application must hold a load vertically during air loss, add 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 MFCJ40X200-30S FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod. 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 30 mm (usable range 170-200 mm), while the variable air cushion at both ends decelerates the piston for smooth stops. 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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