Airtac MFCJ Adjustable Mini Cylinder MFCJ20X100-100S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X100-100S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 100mm 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
- Stroke100 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 MFCJ20X100-100S
Dial in the extend position on-site with the MFCJ20X100-100S, a JIS-standard round-body mini cylinder featuring a 100 mm adjustable stroke window and needle-set variable air cushions at both ends. The external adjuster shortens the extend end by up to 100 mm to perfect your stroke, while the cushions soak up high-speed end-of-travel shock. Driven by a Ø8 mm piston rod and a 1/8" port, it delivers 157 N of push force at 0.5 MPa, yielding a safe working load of roughly 94 N or about 8 kg of vertical lift with a 2:1 margin.
Built with a SUS304 stainless steel barrel and riveted aluminium covers, this double-acting actuator resists mild corrosion and washdown environments. For the same bore and stroke, the MF body is shorter than an ISO 6432 cylinder, saving valuable mounting length. The -S suffix denotes a built-in piston magnet, fully compatible with CMSG, DMSG, and EMSG reed or electronic switches for position feedback.
Airtac MFCJ Adjustable Mini Cylinder MFCJ20X100-100S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X100-100S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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 MFCJ20X100-100S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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 MFCJ20X100-100S Is Used
Micro-Clamp Positioning
Fine-tune the extend stroke by up to 100 mm during machine changeovers to seat delicate 8 kg workpieces without crushing them.
Light Diverting Arms
Absorb the impact of high-speed package routing using the needle-set air cushion while hitting exact stop points on the fly.
Lab Test Actuators
Perfect for trial setups where the exact extend length and end-of-stroke shock must be dialed in repeatedly for sensitive lab equipment.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ20X100-100S the Right Cylinder?
Choose between the 20 mm and 25 mm bores based on your exact force requirements. This MFCJ20X100-100S provides 157 N push and 131.9 N pull at 0.5 MPa, whereas the larger MFCJ25 offers 245.3 N of push force at the same pressure. If your high-speed changeover demands fall under 94 N of safe working load, the 20 mm bore is the optimal, lightweight choice; step up to the 25 mm if you need extra thrust margin.
The 100 mm adjustable window and variable air cushion shine in shock-sensitive trial fits where both the end position and deceleration need tuning. Note that the cushion only decelerates the piston near stroke end—it is not a lock or brake. The cylinder will drift on air loss, so fit an external rod lock or pilot-operated check valve for suspended loads. Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover mount is available).
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 MFCJ20X100-100S FAQ
This 20 mm bore cylinder features a 1/8" air port and an Ø8 mm rod. It generates 157 N push / 131.9 N pull at 0.5 MPa, 219.8 N push / 184.7 N pull at 0.7 MPa, and a theoretical maximum of 32 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 100 mm on-site, while the variable air cushion at both ends decelerates the piston near the end of travel. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG sensors; a non-S SKU cannot take a sensor.
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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