Airtac MFJ Adjustable Mini Cylinder MFJ25X50-10
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X50-10 is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 50mm 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
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- 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 MFJ Adjustable Mini Cylinder MFJ25X50-10
Fine-tune your extend end-position by up to 10 mm on-site with the AirTAC MFJ25X50-10, a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers. This double-acting actuator delivers a 245.3 N push force at 0.5 MPa, making it a robust choice for mid-range tasks. Its riveted construction is shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length while resisting mild corrosion and washdown environments.
The external adjuster lets you shorten the nominal 50 mm extend stroke down to 40 mm without buying a new unit or adding external stops, which is ideal for trial fits and line changeovers. Based on the 0.5 MPa push force, this bore provides a safe working load of roughly 147 N, lifting about 12.5 kg vertically with a 2:1 safety margin. Note that this specific SKU lacks a magnet and cannot accept CMSG, DMSG, or EMSG sensors; choose the -S variant if switch detection is required.
Airtac MFJ Adjustable Mini Cylinder MFJ25X50-10 Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X50-10 |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed TPU bumper pads |
| 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 MFJ Adjustable Mini Cylinder MFJ25X50-10
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 MFJ Adjustable Mini Cylinder MFJ25X50-10 Is Used
Changeover Dial-In
Leverage the 10 mm extend adjuster to fine-tune the 245.3 N push force endpoint during product changeovers, eliminating the need to swap physical hard stops.
Prototype Trial Fits
Ideal for R&D rigs where the final extend position is unknown, letting you safely test movements within the 40 to 50 mm window before locking down the design.
Light Pressing Tasks
Delivers a safe working load of roughly 147 N for seating small components, while the SUS304 barrel handles mildly corrosive shop environments.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X50-10 the Right Cylinder?
When sizing this series, compare the real outputs: the MFJ20 provides 157 N of push force at 0.5 MPa, this MFJ25 hits 245.3 N, and the larger MFJ32 outputs 402.2 N. The 10 mm adjustable window on this model is highly useful during commissioning when the exact extend position is not yet finalised, allowing you to dial in the stroke from 40 to 50 mm on the fly. Mounting options include LB foot, FA flange, and TC trunnion (no SDB), and the 1/8" port matches the 25 mm bore standard.
Keep in mind that the fixed TPU bumper pads only decelerate the stroke end and do not function as a lock. If your application must hold a load on air loss or when the valve is centred, the piston will drift; you should integrate an external rod lock or a pilot-operated check valve for secure positioning.
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 MFJ Adjustable Mini Cylinder MFJ25X50-10 FAQ
This double-acting cylinder uses a 1/8" port and a Ø10 mm piston rod with an M10x1.25 male thread. It generates a push force of 245.3 N and a pull force of 206.1 N at 0.5 MPa. At 0.7 MPa, the push is 343.4 N and the pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
An external adjuster shortens the extend stroke by up to 10 mm on-site, giving a usable extend range of 40 to 50 mm; the retract stroke remains full. The fixed TPU bumper pads only decelerate the end of travel and do not act as a brake. This SKU also lacks a magnet, so it cannot take sensors; you need the -S variant for CMSG, DMSG, or EMSG switches.
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.
Request a Quote for Airtac MFJ Adjustable Mini Cylinder MFJ25X50-10
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.