Airtac MFCJ Adjustable Mini Cylinder MFCJ40X80-100
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X80-100 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 80mm 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
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X80-100
Dial in your extend stroke on site with the AirTAC MFCJ40X80-100, a JIS-standard round-body mini cylinder featuring a 100 mm adjustable window and variable air cushions at both ends. The external adjuster shortens the extend end from its 80 mm nominal maximum down to zero, while the needle cushions soak up high-speed end-of-stroke shock. A 1/4" port and 16 mm rod handle serious force, delivering 628.3 N push at 0.5 MPa.
Built with a SUS304 stainless steel barrel and riveted aluminium covers, this double-acting unit resists mild corrosion and washdown environments. Its riveted round-body build is shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length. Based on the 0.5 MPa push force, it yields a safe working load of about 377 N, lifting roughly 32 kg vertically with a 2:1 margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X80-100 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X80-100 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 MFCJ40X80-100
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 MFCJ40X80-100 Is Used
Press Fit Tuning
Dial in the exact 0-80 mm extend position for inserting 32 kg assemblies while the variable air cushion prevents impact damage at high speed.
High-Speed Diverting
Adjust the stroke on the fly for varying package sizes and rely on the needle cushions to quietly stop the 16 mm rod at cycle end.
Pallet Positioning
Lift and push heavy pallets with 628.3 N of force, fine-tuning the extend distance to match different load widths without changing hardware.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X80-100 the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need heavy thrust: the 40 mm bore pushes 628.3 N versus 402.2 N at 0.5 MPa, pulling 527.8 N compared to 345.6 N. This larger bore is ideal for high-speed changeovers and shock-sensitive trial fits where both the end position and the deceleration rate must be tuned independently. Note that the air cushion only decelerates the piston near stroke end; it does not function as a lock or brake.
If your application requires the load to stay put on air loss, install an external rod lock or pilot-operated check valve, as the piston will drift. Mount this cylinder using LB foot, FA flange, or TC trunnion brackets. Because this specific SKU lacks the -S magnet, it cannot accept 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 MFCJ40X80-100 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, or 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. The external adjuster shortens the extend stroke by up to 100 mm, and the variable air cushion decelerates the piston near the ends.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC MFCJ Cylinders
Request a Quote for Airtac MFCJ Adjustable Mini Cylinder MFCJ40X80-100
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.