Airtac MF20-25 Stainless Steel Mini Cylinder MF25X650SU
The AirTAC MF20-25 Stainless Steel Mini Cylinder MF25X650SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø25mm bore and 650mm 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
- Stroke650 mm
- Port size1/8"
- Acting typeDouble acting
- 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 MF20-25 Stainless Steel Mini Cylinder MF25X650SU
Generating 245.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder features a SUS304 stainless barrel with riveted aluminium covers. The 650 mm stroke is a non-standard, made-to-order length exceeding the 500 mm standard maximum. Its riveted rolling-packed structure shrinks the overall body length compared to an ISO 6432 cylinder of identical bore and stroke, providing a tangible packaging advantage in tight machinery.
The internal piston relies on a heterogeneous two-way seal that retains an oil film for prolonged operational life, while fixed TPU bumper pads and a front-cover anti-impact pad absorb stroke-end shocks. Equipped with a 1/8" port and a built-in magnet (-S), it supports CMSG, DMSG, and EMSG position switches.
Airtac MF20-25 Stainless Steel Mini Cylinder MF25X650SU Technical Specifications
| Model | Airtac MF20-25 Stainless Steel Mini Cylinder MF25X650SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 650 mm |
| Acting type | Double acting |
| 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 MF20-25 Stainless Steel Mini Cylinder MF25X650SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×650 | 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 (double rod, adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MF20-25 Stainless Steel Mini Cylinder MF25X650SU Is Used
Long-Reach Diverting
Pushes packages across a wide sorting conveyor using the extended 650 mm stroke, relying on the 245.3 N output to redirect heavy cartons at 0.5 MPa.
Automated Tool Transfer
Shuttles gripper assemblies between machining stations where the shorter JIS body length prevents interference with adjacent fixturing.
Is the Airtac MF20-25 Stainless Steel Mini Cylinder MF25X650SU the Right Cylinder?
When sizing this 25 mm bore actuator, compare its 245.3 N push force at 0.5 MPa against the smaller MF20 at 157 N or the larger MF32 at 402.2 N. Because this 650 mm length is a non-standard made-to-order stroke, carefully evaluate side-load forces to prevent rod bending over the extended extension. The U flat-end back cover suits direct rear mounting, and you can pair the body with LB foot, FA flange, SDB pivot, or TC trunnion brackets.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centred, as the TPU bumpers only soften the end-of-stroke impact rather than locking the rod. To suspend a load safely during an air loss event, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MF20-25 Stainless Steel Mini Cylinder MF25X650SU FAQ
This 25 mm bore cylinder features a 1/8" port and an M10x1.25 male rod thread. 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 force of 50 kgf at 1.0 MPa.
It uses a U flat-end back cover and fixed TPU bumper pads that decelerate the piston at stroke end, but these do not function as a brake. The piston will drift if air is lost, so an external rod lock or pilot check valve is required to hold a vertical load securely.
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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