Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-75S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-75S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 175mm 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.
- BoreØ20 mm
- Stroke175 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- 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 MFCJ20X175-75S
Dial in the extend end exactly where you need it with the AirTAC MFCJ20X175-75S, a JIS-standard round-body mini cylinder featuring a 75 mm adjustable stroke window and needle-set variable air cushions at both ends. The external adjuster shortens the extend stroke on-site (usable range 100-175 mm), while the dual cushions soak up high-speed end-of-stroke shock for smooth, quiet motion. Built with a SUS304 stainless barrel and riveted aluminium covers, this double-acting actuator resists mild corrosion and washdown while delivering 157 N of push force at 0.5 MPa.
Because it uses a riveted rolling-packed construction, the overall body is noticeably shorter than an ISO 6432 cylinder for the same 20 mm bore and 175 mm stroke, saving valuable mounting length. The 1/8" air port and M8x1.25 male rod thread simplify integration, and the built-in magnet (-S) supports CMSG, DMSG, or EMSG reed and electronic switches. Factoring a 2:1 safety margin, this unit safely lifts about 8 kg vertically, giving you a reliable, compact solution for changeovers and trial fits.
Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-75S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-75S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MFCJ20X175-75S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×175 | 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 MFCJ20X175-75S Is Used
Adjustable Tooling Stops
Fine-tune the extend stroke by up to 75 mm during machine changeovers to set precise tooling endpoints without machining new spacers.
Light Part Diverter
Handles lightweight package diversion with 157 N of push force, using the variable air cushion to silently absorb high-speed impacts.
Trial Fit Actuation
Perfect for prototyping cells where the exact 100-175 mm extend position and end-of-stroke shock need iterative tuning on-site.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-75S the Right Cylinder?
When sizing this actuator, compare the real thrust figures: this 20 mm bore generates 157 N push and 131.9 N pull at 0.5 MPa, while stepping up to the MFCJ25 yields 245.3 N push at the same pressure. Choose the 20 mm bore for lighter, high-speed tasks where precise positioning and shock absorption matter more than raw power. The adjustable stroke and variable air cushion combination is ideal for trial fits or changeovers where both the exact end position and end-of-stroke deceleration need tuning on the fly.
Keep in mind that the air cushion only decelerates the piston near the end of its travel—it is not a lock or brake. If your application must hold a load vertically on air loss or when the valve is centered, add an external rod lock or a pilot-operated check valve, as the piston will drift. For mounting, utilize the LB foot, FA flange, or TC trunnion brackets (SDB and back-cover mounts are unavailable on this adjustable build), and leverage the -S magnet for position sensing.
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 MFCJ20X175-75S FAQ
This 20 mm bore double-acting cylinder features a 1/8" air port and an M8x1.25 male rod thread. It delivers 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical max force of 32 kgf at 1.0 MPa. The 175 mm base stroke is adjustable down to 100 mm via the 75 mm external window.
Yes, the -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG switches. However, the variable air cushion only decelerates the piston near stroke end and does not act as a lock or brake; the cylinder will drift on air loss. For vertical load holding, install an external rod lock or pilot check valve.
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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