Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-20
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-20 is a genuine double acting, adjustable stroke + cushion 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.
- BoreØ40 mm
- Stroke60 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 MFCJ40X60-20
Tune both the extend reach and the end-of-stroke shock on site with this 40 mm bore, double-acting mini cylinder. An external adjuster lets you shorten the extend stroke by up to 20 mm (usable range 40-60 mm), while a needle-set variable air cushion at both ends soaks up high-speed impact for smooth, quiet motion. The SUS304 stainless steel barrel and riveted aluminium covers form a JIS-standard round body that is shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length while resisting mild corrosion and washdown.
Delivering 628.3 N of push force at 0.5 MPa, this unit handles robust actuation tasks. The computed safe working load is about 377 N, meaning it can vertically lift roughly 32 kg with a 2:1 safety margin. It features a 1/4" port, a 16 mm piston rod, and an M14x1.5 male rod thread. Note that this specific SKU lacks the -S magnet and therefore cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-20 Technical Specifications
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-20 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 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 MFCJ40X60-20
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 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.
Where the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-20 Is Used
High-Speed Diverters
Tunes the 20 mm extend window and needle cushion to softly tap 30 kg cartons on a washdown-ready SUS304 barrel without harsh end impacts.
Trial-Fit Clamping
Ideal for machining changeovers where the exact 40-60 mm clamp position and end-of-stroke shock must be dialed in on site for delicate parts.
Variable Push-off
Handles robust 628.3 N push tasks on packaging lines, allowing operators to shorten the extend stroke to accommodate varying box depths.
Is the Airtac MFCJ Adjustable Mini Cylinder MFCJ40X60-20 the Right Cylinder?
When sizing between the two available bores, compare the actual thrust: this MFCJ40 provides 628.3 N of push force at 0.5 MPa, whereas the smaller MFCJ32 delivers 402.2 N. Choose the 40 mm bore when moving heavier payloads or overcoming high friction, and step down to the 32 mm if you need a lighter, narrower footprint. The adjustable stroke and dual variable air cushions are ideal for high-speed changeovers or trial fits where the exact end position and deceleration both need field tuning.
Mounting options include LB foot, FA flange, and TC trunnion (there is no SDB or back-cover mount for this adjustable build). Because this SKU has no -S magnet, you cannot mount reed or solid-state sensors; if position feedback is required, select the -S variant. Finally, remember the air cushion only decelerates the piston near the end of travel—it is not a brake. The cylinder will drift on air loss or a centered valve, so install an external rod lock or pilot-operated check valve for held 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 MFCJ40X60-20 FAQ
This 40 mm bore cylinder uses a 1/4" port and a 16 mm rod with an M14x1.5 male thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, and 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa, with an operating speed range of 30-800 mm/s.
This specific SKU does not have the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. The external adjuster shortens the extend stroke by up to 20 mm (usable range 40-60 mm); retract remains full. The variable air cushion at both ends decelerates the piston near stroke end but does not lock or hold the load.
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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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