Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-100S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-100S 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 MFCJ20X175-100S
Dial in the exact extend length on-site with the AirTAC MFCJ20X175-100S, a JIS-standard round-body mini cylinder featuring a 100 mm stroke adjustment window. The external adjuster shortens the extend end from its 175 mm maximum down to 75 mm, while the needle-set variable air cushion at both ends soaks up high-speed shock for smooth deceleration. Its SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments.
Driven by a 20 mm bore and 1/8" port, this double-acting actuator delivers 157 N of push force at 0.5 MPa, translating to a safe working load of about 94 N or a 2:1 vertical lift capacity of roughly 8 kg. The built-in piston magnet (-S) supports CMSG, DMSG, and EMSG position switches. For the same bore and stroke, this riveted body is shorter than an ISO 6432 cylinder, saving valuable mounting length without conforming to that standard.
Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-100S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-100S |
|---|---|
| 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 MFCJ20X175-100S
| 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 MFCJ20X175-100S Is Used
Adjustable Tooling Stops
Fine-tune the extend position up to 100 mm on automated tooling plates. The 157 N push force securely positions 8 kg workpieces while the variable air cushion prevents harsh impacts at high cycle speeds.
High-Speed Diverters
Sort light goods on packaging lines where the retract is full but the extend stroke needs on-site tweaking. The needle cushion absorbs end-of-stroke energy to keep the 20 mm bore actuator quiet during rapid changeovers.
Lab Test Rigs
Perfect for trial fits in R&D environments. Set the exact extend length within the 75-175 mm window and rely on the SUS304 stainless barrel to withstand mild washdowns during equipment sanitization.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ20X175-100S the Right Cylinder?
When sizing this adjustable series, compare the real thrust figures: the 20 mm bore provides 157 N push at 0.5 MPa, while stepping up to the MFCJ25 yields 245.3 N. Choose the 20 mm bore for lighter, high-speed changeovers where the exact extend position and end-of-stroke shock both need field tuning. The 100 mm adjustment window is ideal for trial fits and prototyping.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover mount). The -S magnet enables CMSG/DMSG/EMSG sensors for confirmation. Note that the air cushion only decelerates the piston near the end of stroke—it is not a lock or brake. Because a plain cylinder drifts on air loss, hold a suspended load with an external rod lock or pilot-operated check valve.
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 MFCJ20X175-100S FAQ
This 20 mm bore double-acting cylinder uses a 1/8" air port and an Ø8 mm rod with an M8x1.25 male thread. It generates 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 maximum force of 32 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 100 mm (usable range 75-175 mm), while the needle variable air cushion at both ends decelerates the piston near stroke end. The cushion is not a brake; the cylinder drifts on air loss, so use an external rod lock for holding. The -S suffix means it has a magnet for CMSG/DMSG/EMSG sensors.
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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