
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X160-30 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 160mm 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.
Dial in the extend position on-site with the AirTAC MFCJ20X160-30, a JIS-standard round-body mini cylinder featuring a 30 mm adjustable stroke window (usable extend 130-160 mm) and needle-set variable air cushions at both ends. The riveted SUS304 stainless barrel with aluminium covers is purposefully shorter than an ISO 6432 unit of the same bore and stroke, saving valuable machine space while resisting mild washdown.
Driven by filtered air through a 1/8" port, this double-acting 20 mm bore generates 157 N of push force at 0.5 MPa, yielding a safe working load of roughly 94 N. It lifts about 8 kg vertically with a 2:1 margin. Note this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches.
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X160-30 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 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.
| 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.
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×160 | 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.
Tunes the extend stroke by up to 30 mm to dial in the exact ejection point for small plastic parts, using the variable air cushion to prevent bounce at 800 mm/s.
Adjusts the stroke on-site to match varying box widths on a conveyor line, safely pushing 8 kg cartons with 157 N of force while cushioning the impact.
Ideal for compact trial-fit jigs where the SUS304 body resists mild corrosion and the 130-160 mm extend window allows rapid changeovers without machining new stops.
When sizing this series, compare the bores directly: this 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 when moving lighter 8 kg payloads at high speed, and use the external adjuster to fine-tune the extend end without swapping cylinders. The variable air cushion is ideal for trial fits where end-of-stroke shock must be absorbed.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover mount is available on this adjustable build). Because this is a non-magnet SKU, sensing is not supported. Remember that the air cushion only decelerates the piston near the end of travel; it does not act as a brake, so fit an external rod lock or pilot check valve if you need to hold a load on air loss.
Quick checklist
This 20 mm bore 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.
This specific SKU does not have the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. The external adjuster shortens the extend stroke by up to 30 mm (usable range 130-160 mm), while the needle variable air cushion at both ends decelerates the piston near stroke end to absorb high-speed shock.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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