Airtac MFJ Adjustable Mini Cylinder MFJ25X200-100
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X200-100 is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 200mm 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
- Stroke200 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 MFJ25X200-100
Trimming the extend end by up to 100 mm on site, this adjustable-stroke mini cylinder lets you set a usable forward travel window between 100 and 200 mm without buying a new unit. The external adjuster sets the end position for trial fits and changeovers, while the full 200 mm retract remains unchanged. Built as a JIS-standard round-body actuator with a SUS304 stainless barrel and riveted aluminium covers, it saves mounting length compared to an ISO 6432 cylinder of the same bore and stroke.
Driven by filtered air at 0.15-1.0 MPa through a 1/8" port, the Ø10 mm piston rod delivers 245.3 N of push force at 0.5 MPa. That translates to a safe working load of about 147 N, or roughly 12.5 kg of vertical lift with a 2:1 margin. This non-magnet SKU cannot host a CMSG/DMSG/EMSG switch, and fixed TPU bumper pads decelerate the stroke ends rather than acting as locks.
Airtac MFJ Adjustable Mini Cylinder MFJ25X200-100 Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X200-100 |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 200 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 MFJ25X200-100
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×200 | 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 MFJ25X200-100 Is Used
Changeover Positioning
Dial in the exact extend stop during product line changeovers using the 100 mm adjuster, saving the cost of swapping cylinders for different 12.5 kg workpiece heights.
Prototype Trial Fits
Perfect for R&D rigs where the final forward position is unknown; safely test end-of-stroke locations within the 100-200 mm window without external stops.
Light Assembly Pressing
Apply up to 245.3 N of push force at 0.5 MPa for seating small bearings or pins, fine-tuning the press depth on-site via the external adjuster.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ25X200-100 the Right Cylinder?
When sizing this actuator, weigh both sides: the MFJ20 bore provides 157 N of push at 0.5 MPa, whereas stepping up to the MFJ32 yields 402.2 N. This MFJ25 sits in the middle at 245.3 N, making it ideal when you need roughly 12.5 kg of vertical lift with a 2:1 safety factor. The 100 mm adjustable window is perfect for changeover stations where the exact end position is not final.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover). Remember that the external adjuster only shortens the extend stroke—it does not lock the load. If air pressure drops, the piston will drift; for fail-safe holding, install an external rod lock or pilot check valve. Because this specific code lacks the -S magnet, it cannot accept position 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 MFJ Adjustable Mini Cylinder MFJ25X200-100 FAQ
This double-acting cylinder uses a 1/8" port and a Ø10 mm rod. It generates 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.
The external adjuster shortens the extend stroke by up to 100 mm, allowing usable forward travel from 100 to 200 mm. Fixed TPU bumper pads decelerate the stroke ends, but they do not lock the load—if air is lost, the piston drifts. Also, this non-S SKU cannot accept sensors.
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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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