Airtac MFCJ Adjustable Mini Cylinder MFCJ40X100-10S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X100-10S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 100mm 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
- Stroke100 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 MFCJ40X100-10S
Dial in your extend stroke on-site with the AirTAC MFCJ40X100-10S, a JIS-standard round-body mini cylinder built for high-speed precision. An external adjuster shortens the extend end by up to 10 mm (usable range 90-100 mm), while needle-set variable air cushions at both ends soak up end-of-stroke shock. The riveted SUS304 stainless barrel and aluminium covers resist mild corrosion and washdowns.
This double-acting 40 mm bore cylinder delivers 628.3 N of push force at 0.5 MPa, yielding a safe working load of about 377 N or roughly 32 kg of vertical lift with a 2:1 margin. It features a 1/4" port, an M14x1.5 male rod thread, and a built-in magnet (-S) for CMSG, DMSG, or EMSG switches. The body is notably shorter than an ISO 6432 cylinder for the same bore and stroke.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X100-10S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X100-10S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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 MFCJ40X100-10S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 MFCJ40X100-10S Is Used
High-Speed Machining Clamps
Tune the 90-100 mm extend clamp position on the fly while the variable air cushion absorbs the 628.3 N high-speed impact for quieter machining cycles.
Adjustable Diverters
Perfect for changeovers where the exact 10 mm stroke offset varies by product; dial in the diverting length and set the needle cushion to stop the 40 mm bore smoothly.
Vertical Lift Stops
Lifts about 32 kg vertically using the 0.5 MPa push force, with the adjustable end-position preventing overtravel and the cushion preventing hard drops at speed.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X100-10S the Right Cylinder?
When sizing between this MFCJ40 and the smaller MFCJ32, compare your real force needs: the 40 mm bore provides 628.3 N of push at 0.5 MPa, whereas the MFCJ32 offers 402.2 N. Choose the 40 mm bore for heavier high-speed changeovers where shock-sensitive trial fits require both a 10 mm stroke window and dual variable air cushions to tune out impact.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover). The included -S magnet enables CMSG/DMSG/EMSG sensors for position confirmation. Remember that the air cushion only decelerates the piston near stroke end—it is not a lock. If the application must hold a load on air loss, install 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 MFCJ40X100-10S FAQ
This 40 mm bore cylinder has a 1/4" port and an M14x1.5 male rod thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum force of 128.1 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 10 mm (usable 90-100 mm); it does not lock the piston mid-stroke. Needle-set variable air cushions at both ends decelerate the load near the ends for smooth 30-800 mm/s operation. The -S suffix means it has a magnet for CMSG/DMSG/EMSG sensors.
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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