Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-75S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-75S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 150mm 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
- Stroke150 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 MFCJ20X150-75S
Trimming the extend stroke by up to 75 mm on site, this double-acting JIS-standard round-body mini cylinder lets you set the exact end position between 75 and 150 mm while retract remains full. A needle variable air cushion at both ends soaks up high-speed shock for smooth deceleration. The SUS304 stainless barrel with riveted aluminium covers resists mild corrosion and washdown, and the body is shorter than an ISO 6432 cylinder for the same 20 mm bore and 150 mm stroke, saving mounting length.
Delivering 157 N push and 131.9 N pull at 0.5 MPa (219.8 N / 184.7 N at 0.7 MPa, 32 kgf max theoretical at 1.0 MPa), it handles light positioning tasks well. The 1/8" port and M8x1.25 male rod thread simplify fittings. With a safe working load around 94 N, it lifts about 8 kg vertically with a 2:1 margin. The -S suffix means a built-in magnet enables CMSG, DMSG or EMSG switches for position sensing.
Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-75S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-75S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 150 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 MFCJ20X150-75S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | 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 MFCJ20X150-75S Is Used
Light Part Pushing
Dial in the 75-150 mm extend stroke to push lightweight 8 kg assemblies into a test fixture, relying on the variable air cushion for quiet, shock-free stops at 800 mm/s.
Diverting Arms
Adjust the extend end on-site to match varying package sizes on a line, using the 157 N push force to actuate diverting gates without crushing the goods.
Lab Automation
Perfect for trial-fit changeovers where the exact reach is unknown; the SUS304 stainless barrel withstands washdown in cleanroom or lab settings.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-75S the Right Cylinder?
When sizing this adjustable-stroke family, compare the real thrust: this 20 mm bore gives 157 N push at 0.5 MPa, while stepping up to an MFCJ25 yields 245.3 N. Choose the 20 mm bore for lighter, high-speed changeovers where exact stroke length and end-of-stroke shock both need on-site tuning. The 75 mm adjuster window is ideal for trial fits where the final extend position is not yet fixed.
Mounting options include LB foot, FA flange and TC trunnion (no SDB or back-cover code). The air cushion only decelerates the piston near stroke end—it is not a lock or brake. Because a plain cylinder drifts on air loss, add an external rod lock or pilot-operated check valve if the load must be held.
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 MFCJ20X150-75S FAQ
This 20 mm bore cylinder has a 1/8" port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 75 mm (usable range 75-150 mm); retract is always full. The needle variable air cushion at both ends decelerates the piston near stroke end but does not lock or hold the load. The -S magnet enables CMSG, DMSG and EMSG sensors for position feedback.
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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