Airtac MFJ Adjustable Mini Cylinder MFJ40X160-30
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ40X160-30 is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø40mm bore and 160mm stroke, 1/4" 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.
- BoreØ40 mm
- Stroke160 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
- 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 MFJ Adjustable Mini Cylinder MFJ40X160-30
Tune your extend end-position on-site with the AirTAC MFJ40X160-30, a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers. An external adjuster shortens the 160 mm extend stroke by up to 30 mm, giving a usable 130 to 160 mm window without buying a new unit or adding external stops. This riveted construction is shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length while the stainless body resists mild washdown.
In the 40 mm bore class, this double-acting actuator delivers a robust 628.3 N push force at 0.5 MPa. For practical sizing, expect a safe working load around 377 N, or vertical lifting of about 32 kg with a 2:1 safety margin. It uses a 1/4" port and a 16 mm rod with an M14x1.5 male thread. Note this SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG sensors.
Airtac MFJ Adjustable Mini Cylinder MFJ40X160-30 Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ40X160-30 |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 | Fixed TPU bumper pads |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MFJ Adjustable Mini Cylinder MFJ40X160-30
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | 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.
Where the Airtac MFJ Adjustable Mini Cylinder MFJ40X160-30 Is Used
Changeover Stations
Dial in the 130 to 160 mm extend position during product changeovers without machining new hard stops.
Trial Fit Rigs
Safely test end positions on prototype assemblies using the 628.3 N push force before finalizing the layout.
Variable Position Stops
Adjust the extend stroke by up to 30 mm on the fly to accommodate varying part widths on the same line.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ40X160-30 the Right Cylinder?
When choosing between the two available bores, the MFJ40 provides 628.3 N of push force at 0.5 MPa compared to the 402.2 N of the MFJ32. This larger bore is the right pick when moving heavier fixtures, whereas the 32 mm option saves space for lighter loads. The adjustable 30 mm window is highly useful for trial fits and line changeovers where the exact end position is unknown during commissioning.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover). Remember that the fixed TPU bumper pads only decelerate the stroke end; they do not lock the piston. If you need to hold a load vertically during air loss, add 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 MFJ Adjustable Mini Cylinder MFJ40X160-30 FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod. At 0.5 MPa it provides 628.3 N push and 527.8 N pull force. At 0.7 MPa it delivers 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 30 mm on-site, giving a usable 130 to 160 mm window. It only sets the end position; it is not a mid-stroke lock. The cylinder has fixed TPU bumper pads for deceleration, and this non-S SKU cannot take a magnetic 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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