Airtac MFD Double Rod Miniature Cylinder MFD40X200S
The AirTAC Airtac MFD Double Rod Miniature Cylinder MFD40X200S is a genuine double acting, double rod 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, double rod
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
About the Airtac MFD Double Rod Miniature Cylinder MFD40X200S
Twin piston rods exiting both covers give the AirTAC MFD40X200S equal thrust in extend and retract, using a rod-side area to generate 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa each way. This JIS-standard round-body mini cylinder uses a SUS304 stainless barrel with riveted aluminium covers, and because it lacks a tie-rod or extruded profile body, it mounts shorter than an ISO 6432 cylinder for the same 40 mm bore and 200 mm stroke.
The built-in -S magnet supports CMSG, DMSG, or EMSG switches for position sensing, while the second rod steadies the load to cut side-play. Operating on a 1/4 inch air port at 30-800 mm/s, it yields a safe working load of roughly 317 N, or a vertical lift of about 26.9 kg with a 2:1 margin. Fixed TPU bumper pads decelerate the stroke ends, though it will drift on air loss and needs an external rod lock to hold position.
Airtac MFD Double Rod Miniature Cylinder MFD40X200S Technical Specifications
| Model | Airtac MFD Double Rod Miniature Cylinder MFD40X200S |
|---|---|
| Series | MFD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting, double rod |
| 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 300 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MFD Double Rod Miniature Cylinder MFD40X200S
| MFD | JIS-standard round-body mini cylinder (double-rod). |
|---|---|
| 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 MFD Double Rod Miniature Cylinder MFD40X200S Is Used
Twin-Tool Transfer
Drive two tools at once using both rod ends, leveraging the 527.8 N equal thrust to push and pull a 200 mm stroke transfer carriage without rotation.
Anti-Rotation Stopper
Use the dual 16 mm rods as a steady guide to resist side-play while halting a 60 kg assembly, relying on the fixed TPU pads to absorb the impact.
Dual-Sense Clamping
Mount CMSG or EMSG switches along the barrel to detect the -S magnet, confirming clamp engagement at both ends of the 200 mm travel.
Is the Airtac MFD Double Rod Miniature Cylinder MFD40X200S the Right Cylinder?
Choosing between this 40 mm bore and the smaller MFD32 comes down to force: the MFD32 delivers 345.6 N at 0.5 MPa, while this MFD40 provides 527.8 N both ways. Select the 40 mm bore when your vertical lift or actuation force exceeds the limits of the smaller body, keeping in mind the theoretical maximum is 107.6 kgf at 1.0 MPa.
The double-rod layout is ideal for anti-rotation slides or mounting a second tool on the back rod. Because this is an -S SKU, it arrives ready for CMSG, DMSG, or EMSG sensors. Mount it using LB foot, FA flange, or TC trunnion brackets; there is no SDB or back-cover code since a rod exits both ends.
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 MFD Double Rod Miniature Cylinder MFD40X200S FAQ
It generates 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa in both directions, with a theoretical max of 107.6 kgf at 1.0 MPa. The bore is 40 mm, the rod is 16 mm each end with an M14x1.5 thread, and the air port is 1/4 inch.
The twin rods provide equal force both ways and resist rotation, making it shorter than an ISO 6432 cylinder. It does not hold position on air loss and will drift; the fixed TPU pads only decelerate the stroke end. Use an external rod lock or pilot check valve for holding.
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