Airtac MFCJ Adjustable Mini Cylinder MFCJ40X15-10S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X15-10S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 15mm 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
- Stroke15 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM14×1.5
- 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 MFCJ40X15-10S
Trim the extend stroke by up to 10 mm on site with the AirTAC MFCJ40X15-10S, a JIS-standard round-body mini cylinder built for high-speed changeovers. A needle-set variable air cushion at both ends soaks up end-of-stroke shock, ensuring smooth and quiet motion. The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdowns, while the body is deliberately shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length.
Delivering 628.3 N of push force at 0.5 MPa through a 1/4" port, this double-acting 40 mm bore unit yields a safe working load of roughly 377 N. That translates to lifting about 32 kg vertically with a 2:1 safety margin. The -S suffix equips the piston with a magnet for CMSG, DMSG, or EMSG switches, giving you exact end-of-stroke confirmation.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X15-10S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X15-10S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| 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 | 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 (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 MFCJ Adjustable Mini Cylinder MFCJ40X15-10S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 MFCJ40X15-10S Is Used
High-Speed Forming Press
Dial in the 10 mm extend window to trial-fit parts, while the variable air cushion absorbs the 628.3 N impact for quiet, shock-free metal forming operations.
Package Diverting Gate
Fine-tune the actuation length on the fly to handle varying carton sizes, relying on the cushion to arrest the piston smoothly at 800 mm/s without slamming.
Vertical Lift Stopper
Lift loads up to 32 kg safely using the 0.5 MPa push force, using the adjustable end position to precisely meet the conveyor height without mechanical shims.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X15-10S the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need serious push power: the 40 mm bore delivers 628.3 N at 0.5 MPa compared to 402.2 N for the 32 mm variant. The external adjuster lets you dial in the exact extend end position within a 5 to 15 mm window, making it perfect for trial fits where both the stroke length and end-of-stroke shock need tuning. Remember that the adjuster only sets the end position; it is not a mid-stroke lock.
For mounting, select LB foot, FA flange, or TC trunnion brackets (SDB and back-cover mounts are not available on this build). Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG sensors. Note that the air cushion only decelerates the piston near the stroke end—it does not hold the load. If air pressure drops, the piston will drift, so install an external rod lock or pilot check valve for suspended loads.
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 MFCJ40X15-10S FAQ
This 40 mm bore double-acting cylinder uses a 1/4" port and a 16 mm rod with an M14x1.5 male thread. It generates a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. At 0.7 MPa, push increases to 879.6 N and pull to 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 10 mm on site, giving a usable extend range of 5-15 mm, while retract remains full. The variable air cushion at both ends only decelerates the piston near the stroke end to absorb shock; it is not a lock or brake. The cylinder will drift on air loss, so use an external rod lock for holding suspended loads. The -S suffix enables CMSG, DMSG, and EMSG sensor integration.
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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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