Airtac MFJ Adjustable Mini Cylinder MFJ40X200-10S
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ40X200-10S is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø40mm bore and 200mm 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
- Stroke200 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 MFJ40X200-10S
Dial in your extend end-position on the fly with the AirTAC MFJ40X200-10S, a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers. An external adjuster lets you shorten the extend stroke by up to 10 mm on site, giving a usable 190 to 200 mm forward travel without buying a new unit or adding external stops. The -S suffix equips the piston with a magnet for CMSG, DMSG, or EMSG switches.
In the 40 mm bore class, this double-acting actuator delivers 628.3 N of push force at 0.5 MPa, making it a robust choice for moderate loads. It features fixed TPU bumper pads for end-deceleration and a 1/4" port. Because the riveted body is shorter than an ISO 6432 cylinder for the same stroke, it saves valuable mounting length while resisting mild washdown. For vertical lifting, it handles about 32 kg with a 2:1 safety margin.
Airtac MFJ Adjustable Mini Cylinder MFJ40X200-10S Technical Specifications
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ40X200-10S |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 MFJ40X200-10S
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 MFJ40X200-10S Is Used
Changeover Stations
Fine-tune the 190-200 mm extend position during product line changeovers to accommodate different fixture lengths without swapping hardware.
Trial Fit Rigs
Leverage the 628.3 N push force and 10 mm adjuster to safely test clamping depths on prototype parts before locking down the final dimensions.
Variable Position Stops
Use the compact JIS body to push parts into a workstation, tweaking the end stop on-site to align components precisely without external bumpers.
Is the Airtac MFJ Adjustable Mini Cylinder MFJ40X200-10S the Right Cylinder?
When sizing between the two available bores, the MFJ40 provides 628.3 N of push force at 0.5 MPa, whereas the MFJ32 offers 402.2 N. Choose this 40 mm model if your application needs the extra thrust for moving heavier fixtures. The 10 mm adjustable window is ideal for changeover stations or trial fits where the exact end position is not yet final. Mounting options include LB foot, FA flange, and TC trunnion (no SDB). Keep in mind the fixed bumpers only decelerate the stroke end; they do not lock the piston. If you need to hold a load vertically during 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 MFJ Adjustable Mini Cylinder MFJ40X200-10S FAQ
This 40 mm bore cylinder has a 16 mm rod, M14x1.5 male thread, and a 1/4" port. At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. It operates at speeds of 30-800 mm/s.
The external adjuster shortens the extend stroke by up to 10 mm on site, letting you set the end position without replacing the cylinder. It uses fixed TPU bumper pads for deceleration, not an adjustable air cushion. The -S suffix means it has a built-in piston magnet ready for CMSG, DMSG, or 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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