Airtac MFCJ Adjustable Mini Cylinder MFCJ40X160-50S
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X160-50S is a genuine double acting, adjustable stroke + cushion 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 + 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 MFCJ40X160-50S
Tune both the extend end-point and the end-of-stroke shock on-site with this 40 mm bore adjustable-stroke mini cylinder. The external adjuster shortens the extend stroke by up to 50 mm (usable range 110-160 mm), while the needle variable air cushion at both ends soaks up high-speed kinetic energy for smooth deceleration. Because it is a JIS-standard round-body build with a SUS304 stainless barrel and riveted aluminium covers, the overall length is shorter than a comparable ISO 6432 cylinder, saving mounting space and resisting mild washdown.
Fitted with a -S piston magnet, this double-acting actuator supports CMSG, DMSG and EMSG reed or electronic switches. It delivers a robust 628.3 N push force at 0.5 MPa (879.6 N at 0.7 MPa) via a 1/4" port and M14x1.5 male rod thread. For sizing, the 0.5 MPa push force yields a safe working load of roughly 377 N, meaning it lifts about 32 kg vertically with a 2:1 safety margin.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X160-50S Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X160-50S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 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 MFCJ40X160-50S
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 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 MFCJ Adjustable Mini Cylinder MFCJ40X160-50S Is Used
High-Speed Diverting
Tunes the 50 mm extend window and needle cushion to gently divert 30 kg cartons on a conveyor without harsh end-of-stroke impacts.
Carton Flap Folding
Adjusts the extend end-point on the fly to match varying box sizes, using the 628.3 N push force to fold heavy packaging flaps smoothly.
Trial Fit Clamping
Ideal for machining changeovers where the exact 110-160 mm extend position and deceleration rate need precise dialing-in before final locking.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X160-50S the Right Cylinder?
Choose the MFCJ40 over the MFCJ32 when you need the higher 628.3 N push force at 0.5 MPa instead of the 402.2 N offered by the 32 mm bore. This 40 mm variant is ideal for high-speed changeovers or trial fits where the exact extend position within the 50 mm window and the needle cushioning both require field tuning. Mounting options include LB foot, FA flange and TC trunnion (no SDB or back-cover code).
Remember that the air cushion only decelerates the piston near the stroke end; it does not function as a lock or brake. If the load must be held in place during air loss or when the valve is centred, the piston will drift, so you must add an external rod lock or pilot-operated 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 MFCJ40X160-50S FAQ
This 40 mm bore cylinder features a 1/4" port and a Ø16 mm rod with an M14x1.5 male 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 of 128.1 kgf at 1.0 MPa.
The -S suffix means a built-in piston magnet is present for CMSG, DMSG or EMSG sensors. The external adjuster shortens the extend stroke by up to 50 mm (110-160 mm usable range), while the variable air cushion at both ends uses a needle valve to decelerate the piston at high speed. The cushion is not a brake.
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.
Related AirTAC MFCJ Cylinders
Request a Quote for Airtac MFCJ Adjustable Mini Cylinder MFCJ40X160-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.