Airtac MGD Double Rod Mini Cylinder MGD40X150
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X150 is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø40mm bore and 150mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke150 mm
- Port size1/8"
- Acting typeDouble acting, double rod
- Rod threadM14×1.5
- CushionFixed anti-impact 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 MGD Double Rod Mini Cylinder MGD40X150
The AirTAC MGD40X150 is a double acting, double rod JIS round-body mini cylinder with a 40 mm bore and 150 mm stroke. A 16 mm rod exits both the front and back covers with the same M14x1.5 male thread at each end, so the two rod ends move together and the output force is EQUAL in both directions: about 527.8 N each way at 0.5 MPa and 738.9 N each way at 0.7 MPa. Because both sides of the piston see the rod-side area, there is no separate push and pull figure, and the through-rod naturally resists piston rotation and side load while keeping stroke-end position repeatable.
The largest bore in the MGD range, this 40 mm cylinder delivers a theoretical maximum of 107.6 kgf at 1.0 MPa; halving the 0.5 MPa force gives a safe vertical working load of roughly 27 kg. The SUS304 stainless barrel and hard-chrome plated rods suit damp and washdown environments, the riveted round-body construction follows the JIS footprint, and a fixed anti-impact bumper pad decelerates the stroke end. Ports are 1/8" on every MGD bore, operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, speed range is 30-800 mm/s, and temperature spans -20 to +70 C. The back rod end can carry a stop or switch flag or drive a second load, and the optional -S magnet enables CMSG, DMSG or EMSG sensors.
Airtac MGD Double Rod Mini Cylinder MGD40X150 Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X150 |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| 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 anti-impact bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MG-series (JIS standard) datasheet. Barrel: SUS304 stainless steel (round-body, riveted construction); piston rod: carbon steel with 20µm hard-chrome plating. 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 MGD Double Rod Mini Cylinder MGD40X150
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB | Mounting: FA flange, LB foot. |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MGD Double Rod Mini Cylinder MGD40X150 Is Used
Anti-rotation linear slide
The through-rod of the MGD40X150 resists piston rotation, keeping a 150 mm slide plate oriented without external guides, with equal 527.8 N force in both travel directions.
Twin-load push or clamp
With a rod exiting both covers, one cylinder presses or clamps two workstations at once, each end delivering about 54 kgf at 0.5 MPa for the 40 mm bore.
Rear-mounted stop or flag
The back rod end carries a stop block or switch flag for stroke-end signalling, or a second actuator, while the fixed bumper pad softens each end of the 150 mm stroke.
Is the Airtac MGD Double Rod Mini Cylinder MGD40X150 the Right Cylinder?
Choose the MGD40X150 when you need the strongest MGD force class with equal output both ways: 527.8 N per direction at 0.5 MPa, roughly 54 kgf, so size around a 0.6 factor for a realistic working load of about 32 kgf. The 40 mm bore is the largest MGD option; for 50 mm or 63 mm bores, or for an adjustable variable cushion instead of the fixed bumper pad, step up to the MGCD series, and for a conventional single-rod cylinder use the MG. The through-rod is the right pick when anti-rotation matters, when you need to mount a switch or stop flag on the rear rod end, or when one cylinder must drive two loads at once. Mounting is FA flange or LB foot, with I and Y rod knuckles available (no SDB or CB pivot on the double-rod design). Add the S code if you need CMSG, DMSG or EMSG position sensing; without the magnet no sensor can be mounted. At 150 mm the stroke is well inside the 500 mm maximum standard stroke for this bore, but on long strokes keep side load on the rod low and support the workpiece.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA) & knuckle
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 On first run, back off the cushion/impact settings and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGD Double Rod Mini Cylinder MGD40X150 FAQ
Because the rod occupies both sides of the piston, force is equal in both directions: 527.8 N each way at 0.5 MPa and 738.9 N each way at 0.7 MPa, with a theoretical maximum of 107.6 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed is 30-800 mm/s, and the fluid is air filtered to 40 um. Ports are 1/8" and the rod thread is M14x1.5 at both ends.
The MGD has a rod exiting both covers, so it gives equal force both ways, resists rotation and side load, and lets the rear rod end carry a stop flag or drive a second load; the MG has a single rod and a higher extend force. The MGD40X150 uses a fixed anti-impact bumper pad only, not an adjustable cushion (that is the MGCD). It will not hold a load on air loss, so use an external rod lock or pilot check valve for held loads. Add the -S magnet option to mount CMSG, DMSG or EMSG sensors; without the magnet no sensor can be fitted.
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