Airtac MFJ Adjustable Mini Cylinder MFJ40X150-100S
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ40X150-100S is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø40mm bore and 150mm 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
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
- 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 MFJ Adjustable Mini Cylinder MFJ40X150-100S
Trimming the extend stroke by up to 100 mm on-site, this double-acting JIS-standard round-body mini cylinder removes the need to swap units during line changeovers. The SUS304 stainless barrel and riveted aluminium covers form a compact body that is physically shorter than an equivalent ISO 6432 cylinder, saving valuable mounting length while resisting mild washdown corrosion. A 1/4" port and M14x1.5 male rod thread equip the 40 mm bore.
In the 40 mm class, this unit delivers a push force of 628.3 N and a pull force of 527.8 N at 0.5 MPa. That translates to a safe working load of roughly 377 N, meaning it lifts about 32 kg vertically with a 2:1 margin. The integrated -S piston magnet supports CMSG, DMSG, and EMSG switches for position sensing.
Airtac MFJ Adjustable Mini Cylinder MFJ40X150-100S Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ40X150-100S |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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.
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 MFJ Adjustable Mini Cylinder MFJ40X150-100S
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 MFJ Adjustable Mini Cylinder MFJ40X150-100S Is Used
Changeover Stations
Dial in the exact extend position across different product sizes using the 100 mm window, avoiding the need to physically swap cylinders during format changes.
Trial Fit Rigs
Leverage the 628.3 N push force to seat components while fine-tuning the end stop on-site, perfect for prototyping assembly fixtures before finalizing dimensions.
Variable Position Stops
Act as an adjustable physical stop for incoming parts, utilizing the 32 kg vertical lift capacity to divert or hold varying product heights on the fly.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ40X150-100S the Right Cylinder?
When sizing this series, compare the two available bores directly: the MFJ40 offers 628.3 N of push force at 0.5 MPa, whereas the MFJ32 provides 402.2 N. Choose the 40 mm bore when moving heavier fixtures or overcoming substantial friction. The 100 mm adjustable window is ideal for trial fits and changeover stations where the exact end position remains unknown until commissioning. Mount using LB foot, FA flange, or TC trunnion brackets (SDB is not supported).
Remember that the fixed TPU bumper pads only decelerate the stroke end; they do not function as a lock. If the load must be prevented from drifting on air loss, add an external rod lock or pilot check valve, as the adjuster solely sets the extend end position.
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 MFJ Adjustable Mini Cylinder MFJ40X150-100S FAQ
This 40 mm bore cylinder features a 1/4" port and 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 is 879.6 N and pull is 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 100 mm without adding stroke beyond the 150 mm base. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG switches. Fixed TPU bumper pads absorb end-of-stroke impact.
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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