
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ40X60-10S is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø40mm bore and 60mm 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.
Trim the extend stroke by up to 10 mm on site with the AirTAC MFJ40X60-10S, a double-acting JIS-standard round-body mini cylinder built around a SUS304 stainless barrel and riveted aluminium covers. The external adjuster lets you fine-tune the end position from 50 to 60 mm without buying a new unit or adding external stops, which is ideal for trial fits and line changeovers. Because the -S suffix includes a piston magnet, this SKU is ready for CMSG, DMSG or EMSG reed and electronic switches.
In the 40 mm bore class this cylinder delivers serious push force: 628.3 N at 0.5 MPa and 879.6 N at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa. That translates to a safe working load of about 377 N, or roughly 32 kg of vertical lift with a 2:1 margin. Air enters via a 1/4" port, the rod is 16 mm with an M14x1.5 male thread, and the compact riveted body is physically shorter than a comparable ISO 6432 cylinder, saving valuable mounting length while resisting mild washdown.
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ40X60-10S |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 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.
| 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.
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×60 | 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.
Fine-tune the 50-60 mm extend position on packaging changeover stations without swapping hardware, using the 628.3 N push force to positively seat parts.
Dial in the exact end-of-stroke stop during R&D rig commissioning, leveraging the 377 N safe working load to test actuation without machining new stops.
Adjust the extend endpoint on the fly for light pressing tasks, taking advantage of the 32 kg vertical lift capacity to seat components precisely.
Choose between the two MFJ bores by matching your force needs: this 40 mm version pushes 628.3 N at 0.5 MPa, whereas the smaller 32 mm bore pushes 402.2 N. The 10 mm adjustable window here is perfect for set-up rigs where the exact extend position is not final, letting you dial in the stroke during commissioning. Both bores use a 1/4" port and offer LB foot, FA flange and TC trunnion mounts (no SDB or back-cover option). Keep in mind the fixed TPU bumper pads only decelerate the stroke end; they do not lock the piston. If your application must hold a load on air loss, add an external rod lock or pilot check valve, as the piston will drift.
Quick checklist
This 40 mm bore double-acting cylinder uses a 1/4" port and generates 628.3 N push / 527.8 N pull at 0.5 MPa, and 879.6 N push / 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa. It operates at 30-800 mm/s with fixed TPU bumper pads.
The external adjuster shortens the extend stroke by up to 10 mm on site, giving a usable 50-60 mm extend window. The retract stroke remains full. The adjuster only sets the end position and the bumpers decelerate the stroke; they do not lock the piston. The -S magnet allows CMSG, DMSG or EMSG sensors to be fitted.
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