
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X450S is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
The AirTAC MGD40X450S is a double acting, double rod JIS round-body mini cylinder with a 40 mm bore and 450 mm stroke. A 16 mm hard-chrome rod exits both the front and rear covers with the same M14x1.5 male thread at each end, so both rod ends travel together and deliver an equal 527.8 N at 0.5 MPa (738.9 N at 0.7 MPa) in either direction. Because both sides of the piston see the rod-side area, there is no push/pull imbalance, and the through-rod resists rotation and side load while keeping stroke-end position repeatable. The magnet fitted under the S code allows CMSG, DMSG or EMSG switches to be mounted on either rod end.
Construction follows the JIS mini-cylinder footprint: a riveted SUS304 stainless barrel with hard-chrome plated rods, suited to damp and washdown surroundings. Fixed anti-impact bumper pads decelerate the stroke ends, though they are not adjustable cushions and do not hold a load on air loss. Air supply is filtered to 40 um, operating pressure spans 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof rating, temperature range is -20 to +70 C, and speed runs 30-800 mm/s. At a realistic working load of about 0.6 of the 527.8 N force, plan for roughly 32 kg vertical, and confirm mounting hardware from the datasheet.
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X450S |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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.
| 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).
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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.
The through-rod on the MGD40X450S resists rotation and side load, keeping a 450 mm slide tracking straight without external guides.
Equal 527.8 N at 0.5 MPa from both rod ends lets one cylinder drive two fixtures or a symmetric transfer at once.
The back rod end carries a stop or switch flag, with the fitted magnet feeding CMSG/DMSG/EMSG position signals.
At 40 mm bore this is the largest MGD, delivering 527.8 N each way at 0.5 MPa; step down to the 32 mm bore (483.8 N at 0.7 MPa) if space is tight, or to the 25 mm (288.5 N) for lighter loads. If you need bores of 50 or 63 mm, or an adjustable variable cushion instead of the fixed bumper pad, choose the double-rod MGCD; for a single-rod cylinder use the MG. The through-rod suits anti-rotation slides, twin-load pushing and rear-mounted switch or stop flags. Mount with the FA flange or LB foot, add I or Y rod knuckles at either end (SDB/CB pivots are not offered on the double rod), and rely on the fitted magnet for CMSG/DMSG/EMSG sensing. On this 450 mm stroke, support the rod or limit side load to protect the bearings over the long travel.
Quick checklist
This 40 mm bore double rod cylinder gives an equal 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa in both directions, 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, and the air must be filtered to 40 um. The port is 1/8" and the rod thread is M14x1.5 at both ends.
A rod exits both covers of the MGD, so force is equal both ways and the through-rod resists rotation and side load, while the single-rod MG has a larger extend force but a smaller return force. This model carries the S magnet code, so CMSG, DMSG or EMSG switches mount directly. Note the fixed bumper pads only soften stroke ends: the cylinder will not hold a load on air loss, so use an external rod lock or pilot check valve for held loads.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.