Airtac MGD Double Rod Mini Cylinder MGD40X200S
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X200S is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø40mm bore and 200mm 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
- Stroke200 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 MGD40X200S
The AirTAC MGD40X200S is a double acting, double rod JIS round-body mini cylinder: a 16 mm hard-chrome 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. Because the rod-side area is active on both sides of the piston, this 40 mm bore delivers about 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa whichever way it moves, with a theoretical maximum of 107.6 kgf at 1.0 MPa. The through-rod resists rotation and side load, and the free back rod end can carry a stop flag, a position flag or drive a second load.
Construction is classic AirTAC mini-cylinder: a riveted SUS304 stainless barrel that suits damp and washdown environments, hard-chrome plated rods, two-way lubricant-storing piston seals and a fixed anti-impact bumper pad that decelerates the stroke end. The fitted magnet (the S in the code) allows CMSG, DMSG or EMSG switches to be clamped anywhere along the barrel. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi), from -20 to +70 C at 30-800 mm/s, with a 1/8" port. As a realistic working rule, size the load at about 0.6 of the push force, which is roughly 32 kg for a vertical lift on this cylinder.
Airtac MGD Double Rod Mini Cylinder MGD40X200S Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X200S |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 MGD40X200S
| MGD | JIS 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. |
| 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 MGD40X200S Is Used
Anti-rotation slide
The through-rod keeps a 200 mm slide square without external guides, pushing or pulling with 527.8 N at 0.5 MPa in either direction.
Twin-load push
Drive two small fixtures or chutes at once from the front and rear M14x1.5 rod ends, with identical force at both ends of the stroke.
Rear-mounted stop flag
Use the free back rod end to carry a stop or position flag past CMSG, DMSG or EMSG switches for repeatable stroke-end signalling.
Is the Airtac MGD Double Rod Mini Cylinder MGD40X200S the Right Cylinder?
At 40 mm bore this is the largest MGD, delivering 527.8 N equally in both directions; step down to the MGD32 if you need less force, and remember the MGD tops out at bore 40 - for a 50 or 63 mm double-rod bore, or if you need an adjustable variable cushion instead of the fixed bumper pad, move to the MGCD series. If you do not need a rod at both ends, the single-rod MG gives a higher push force in the extend direction. Choose the MGD40X200S when anti-rotation matters, when you want to mount a switch or stop flag on the rear rod end, or when you need to drive two points symmetrically. Mounting is FA flange or LB foot, with I and Y rod knuckles available (no SDB or CB pivot on the double-rod). The 200 mm stroke sits well inside the 500 mm maximum standard stroke for this bore, and on long strokes keep side load on the rod low and support the workpiece independently. For a load that must stay put on air loss, add an external rod lock or pilot check valve - the bumper pad only softens the stroke end and will not hold position.
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 MGD40X200S FAQ
Force is equal in both directions because the rod-side area is active both ways: 527.8 N at 0.5 MPa and 738.9 N 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 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-800 mm/s, on air filtered to 40 um. The port is 1/8" and the maximum standard stroke for this 40 mm bore is 500 mm.
A rod exits both covers with the same M14x1.25-class male thread at each end (M14x1.5 on this bore), so the cylinder resists rotation and side load, delivers equal force extending and retracting, and the rear rod end can carry a stop flag or drive a second load. The single-rod MG has a larger full-bore push force in one direction only and no rear rod. The S code means a magnet is fitted, so CMSG, DMSG or EMSG switches can be mounted; a cylinder without S cannot take them.
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