Airtac MFCJ Adjustable Mini Cylinder MFCJ25X20-10
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X20-10 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 20mm stroke, 1/8" 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.
- BoreØ25 mm
- Stroke20 mm
- Port size1/8"
- 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 MFCJ25X20-10
Dial in exact end positions and absorb high-speed shock with the AirTAC MFCJ25X20-10 adjustable-stroke, variable-cushion mini cylinder. An external adjuster lets you shorten the extend stroke by up to 10 mm on site, while needle air cushions at both ends soak up end-of-stroke impact. This JIS-standard round-body actuator uses a SUS304 stainless barrel with riveted aluminium covers, giving you a shorter mounting length than an ISO 6432 cylinder for the same 25 mm bore and 20 mm stroke.
Built for double-acting service, this model delivers 245.3 N push force at 0.5 MPa via its 1/8" port, yielding a safe working load of about 147 N. It lifts roughly 12.5 kg vertically with a 2:1 margin. Note that this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches. The cushion only decelerates the piston near the ends; it is not a lock, so add an external rod lock or pilot check valve if you need to hold a load on air loss.
Airtac MFCJ Adjustable Mini Cylinder MFCJ25X20-10 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X20-10 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 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 MFCJ25X20-10
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×20 | 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 MFCJ25X20-10 Is Used
High-Speed Part Ejection
Tune the extend stop within the 10 mm window and rely on the variable air cushion to softly decelerate the 245.3 N push force when ejecting light parts at high cycle rates.
Adjustable Transfer Stops
Fine-tune the retract and extend end positions on-site for conveyor changeovers, using the needle cushion to prevent shock when shifting packages.
Lab Test Actuators
Perfect for trial-fit rigs where the exact 10-20 mm extend stroke needs tweaking, and the SUS304 stainless barrel resists mild washdown corrosion.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ25X20-10 the Right Cylinder?
When sizing this 25 mm bore, compare the real thrusts: the MFCJ20 provides 157 N push at 0.5 MPa, while the larger MFCJ32 offers 402.2 N. This MFCJ25X20-10 sits comfortably in the middle at 245.3 N, making it ideal when you need moderate force with on-the-fly stroke tuning for trial fits or high-speed changeovers. The 10 mm adjustable window lets you trim the 20 mm extend stroke down to a 10 mm minimum.
Mount this cylinder using LB foot, FA flange, or TC trunnion brackets (SDB is not available, and there is no back-cover option). Because this non-S SKU has no magnet, skip position sensing unless you upgrade to the -S variant. Remember that the air cushion decelerates the load but does not brake it—specify a pilot-operated check valve for suspended loads.
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 MFCJ25X20-10 FAQ
This 25 mm bore cylinder features a 1/8" port and a 10 mm piston rod. It delivers 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum of 50 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must select the -S variant for position sensing. The external adjuster shortens the extend stroke by up to 10 mm, and the variable air cushion at both ends handles deceleration.
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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