Airtac MFCJ Adjustable Mini Cylinder MFCJ32X300-40S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ32X300-40S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø32mm bore and 300mm 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.
- BoreØ32 mm
- Stroke300 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- 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 MFCJ32X300-40S
Tune your extend stroke precisely on-site with the AirTAC MFCJ32X300-40S, a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers. An external adjuster shortens the extend end by up to 40mm, giving a usable window of 260-300mm, while a needle variable air cushion at both ends soaks up high-speed shock. It delivers a robust 402.2N push force at 0.5MPa via a 1/4" port.
This double-acting actuator features a built-in magnet (-S) for CMSG, DMSG, or EMSG switches. Its riveted construction is shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length while resisting mild washdown corrosion. For sizing, it provides a safe working load of about 241N (60% of the 0.5MPa push force) and lifts roughly 20.5kg vertically with a 2:1 margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ32X300-40S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ32X300-40S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/4" |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MFCJ32X300-40S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 MFCJ32X300-40S Is Used
High-Speed Diverters
Tune the 260-300mm extend stroke on-site to match package sizes, relying on the variable air cushion to silently stop the 402.2N push force without slamming.
Trial-Fit Assembly
Dial in the exact 40mm adjustment window during prototype changeovers, letting the needle cushion absorb high-speed shocks on sensitive components.
Vertical Lift Stops
Lifts about 20.5kg vertically using the 0.5MPa thrust; pair with an external pilot check valve to hold the load safely, as the cushion only decelerates.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ32X300-40S the Right Cylinder?
Choose the MFCJ32 when you need 402.2N push at 0.5MPa; step up to the MFCJ40 if your application requires the heavier 628.3N push force. This 32mm bore uses a 12mm rod and 1/4" port, striking a balance between compact size and power. The 40mm adjustable window is perfect for high-speed changeovers where the exact end position and end-of-stroke shock both need fine-tuning.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB). The -S magnet enables electronic or reed sensors. Remember that the air cushion only decelerates the piston near stroke end—it is not a lock. If you need to hold a load vertically during air loss, install an external rod lock or pilot check valve to prevent drift.
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 MFCJ32X300-40S FAQ
This 32mm bore cylinder features a 1/4" port and a 12mm piston rod. It generates 402.2N push and 345.6N pull at 0.5MPa, 563N push and 483.8N pull at 0.7MPa, with a theoretical maximum force of 82kgf at 1.0MPa. Operating speed is 30-800mm/s.
The external adjuster shortens the extend stroke by up to 40mm on-site (usable range 260-300mm). The needle variable air cushion at both ends decelerates the piston smoothly at high speeds. Because it includes the -S magnet, you can mount CMSG, DMSG, or EMSG sensors for position detection.
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.
Related AirTAC MFCJ Cylinders
Request a Quote for Airtac MFCJ Adjustable Mini Cylinder MFCJ32X300-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.