Airtac MFCJ Adjustable Mini Cylinder MFCJ40X225-10
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X225-10 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 225mm 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
- Stroke225 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 MFCJ40X225-10
Tune both the extend end-point and end-of-stroke shock precisely with this 40 mm bore, 225 mm stroke adjustable cylinder. A needle variable air cushion at each end soaks up high-speed kinetic energy, while the external adjuster shortens the extend stroke by up to 10 mm on site (usable extend 215-225 mm). The riveted SUS304 stainless round body and aluminium covers yield a shorter mounting envelope than an ISO 6432 unit, resisting mild washdown.
Delivering 628.3 N push and 527.8 N pull at 0.5 MPa, this double-acting JIS mini handles robust loads. It provides a safe working load of about 377 N, lifting roughly 32 kg vertically with a 2:1 margin. The 1/4" port and M14x1.5 male rod thread match the 40 mm bore class. Note this SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X225-10 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X225-10 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 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 MFCJ40X225-10
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 MFCJ40X225-10 Is Used
Press Feed Setup
Dial in the 215-225 mm extend position and tune the needle cushion to absorb the shock of high-speed press feeding without slamming.
Transfer Diverter
Use the 628.3 N push force to divert heavy packages, fine-tuning the 10 mm stroke window during line changeovers for exact routing.
Carton Sealing Jaw
Adjust the jaw extend end-point on the fly and set the variable air cushion for quiet, smooth operation even at 800 mm/s speeds.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X225-10 the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need the higher 628.3 N push force at 0.5 MPa instead of the 402.2 N offered by the smaller bore. The 10 mm adjustable window is perfect for trial fits and high-speed changeovers where the exact extend position and deceleration ramp both need field tuning. Mount via LB foot, FA flange, or TC trunnion (no SDB). If the load must stay put on air loss, add an external rod lock or pilot check valve, as the cushion only decelerates and the piston will 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 MFCJ40X225-10 FAQ
This 40 mm bore double-acting cylinder has a 1/4" port and an M14x1.5 male rod 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.
This specific SKU has no -S magnet, so it cannot accept CMSG/DMSG/EMSG switches. The variable air cushion only decelerates the piston near stroke end; it is not a brake or lock. For position holding on air loss, install an external rod lock or pilot check valve.
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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