Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-30
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-30 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 MFCJ20X150-30
Trimming the extend end by up to 30 mm on-site, the AirTAC MFCJ20X150-30 sets a usable forward stroke of 120-150 mm while retaining full retract. This double-acting JIS-standard round-body mini cylinder pairs that external adjuster with a variable needle air cushion at both ends to soak up high-speed shock. Its SUS304 stainless barrel and riveted aluminium covers resist mild washdown, and the body is shorter than an ISO 6432 unit for the same 20 mm bore and 150 mm stroke.
Operating at 30-800 mm/s on a 1/8" port with an Ø8 mm rod (M8x1.25 male thread), it delivers 157 N push and 131.9 N pull at 0.5 MPa. That translates to a safe working load of about 94 N, or lifting roughly 8 kg vertically with a 2:1 margin. Note this SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-30 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-30 |
|---|---|
| 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 MFCJ20X150-30
| 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 MFCJ20X150-30 Is Used
Lightweight Component Pressing
Dial in the exact 120-150 mm extend distance for seating delicate bearings, using the needle cushion to prevent impact damage at speeds up to 800 mm/s.
Package Diverter Arms
Fine-tune the pusher stroke on the fly during format changeovers, safely handling loads under the 94 N working threshold without slamming the retract end.
Lab Automation Stoppers
Adjust the stop position for various test tube rack sizes; the SUS304 stainless body withstands routine wipe-downs in clean lab environments.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ20X150-30 the Right Cylinder?
When sizing this series, compare the real thrust: this 20 mm bore gives 157 N push at 0.5 MPa, whereas stepping up to an MFCJ25 yields 245.3 N. Choose the 20 mm bore for lighter, high-speed changeovers where exact end-position tuning and end-of-stroke deceleration are both needed. The adjustable stroke and cushion excel in shock-sensitive trial fits.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover). Because this is a non-magnet SKU, sensing is impossible without switching to an -S variant. Finally, the air cushion only decelerates the piston near stroke end—it is not a lock. If you must hold a load on air loss, fit an external rod lock or pilot 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 MFCJ20X150-30 FAQ
This 20 mm bore cylinder features a 1/8" port and an Ø8 mm rod. It generates 157 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa, with an operating speed of 30-800 mm/s.
This specific SKU lacks a magnet (-S), so it cannot accept CMSG, DMSG, or EMSG switches. The external adjuster shortens the extend stroke by up to 30 mm (usable range 120-150 mm), while the variable air cushion at both ends only decelerates the piston near the end of travel—it does not lock the load.
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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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