Airtac MGD Double Rod Mini Cylinder MGD40X350S
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X350S is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø40mm bore and 350mm 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
- Stroke350 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 MGD40X350S
The AirTAC MGD40X350S is a double acting, double rod JIS round-body mini cylinder with a 40 mm bore and 350 mm stroke. Because a 16 mm rod exits both the front and rear covers with an M14x1.5 male thread at each end, the piston sees the rod-side area in both directions, so the output force is equal both ways: about 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa. The through-rod resists rotation and side load, keeps stroke-end position repeatable, and lets the rear rod end carry a stop flag or drive a second load. The fitted magnet (the S code) allows CMSG, DMSG or EMSG switches to be mounted on either rod side.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with hard-chrome plated rods, riveted covers and a two-way lubricant-storing piston seal, suited to damp and washdown environments. A fixed anti-impact bumper pad decelerates the stroke end on each side; it is not an adjustable air cushion. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, -20 to +70 C, and speeds of 30-800 mm/s, on air filtered to 40 um. Every port is 1/8". For a realistic working load, size around 60 percent of the push force, roughly 32 kgf; for a vertical lift, halve the 53.8 kgf theoretical figure to about 26 kg.
Airtac MGD Double Rod Mini Cylinder MGD40X350S Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X350S |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MGD40X350S
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MGD40X350S Is Used
Anti-rotation slide
The 350 mm through-rod resists rotation and side load, keeping a 40 mm bore carriage tracking straight at 527.8 N per direction without external guides.
Twin-load push
Drive two fixtures or transfer arms at once, one load per rod end, with equal 527.8 N force at 0.5 MPa from each M14x1.5 threaded end.
Rear switch flag
The fitted magnet and rear rod end carry a stop or switch flag, with CMSG/DMSG/EMSG sensing at both stroke ends of the 350 mm travel.
Is the Airtac MGD Double Rod Mini Cylinder MGD40X350S the Right Cylinder?
At 40 mm bore the MGD40X350S is the largest MGD in the range, delivering 527.8 N equally in both directions at 0.5 MPa. If you need more force, a longer stroke beyond the 500 mm maximum standard stroke for this bore, or an adjustable variable cushion instead of the fixed bumper pad, move up to the MGCD series, which adds 50 mm and 63 mm bores. If you do not need a rod at both ends, the single-rod MG series gives a higher extend force for the same bore. Choose the MGD40X350S when anti-rotation guidance, dual-ended loading or a rear-mounted switch flag matters; the through-rod tolerates modest side load, but on a 350 mm stroke keep the rod aligned and use FA flange or LB foot mounting plus I or Y rod knuckles as needed. Note the cylinder does not hold position on air loss, so fit an external rod lock or pilot check valve for a held load. The S code means the magnet is already fitted for CMSG/DMSG/EMSG sensing.
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 MGD40X350S FAQ
The 40 mm double rod bore gives 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, equal 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, on air filtered to 40 um. Every port is 1/8" and the rod thread is M14x1.5 at both ends.
The MGD40X350S has a rod exiting both covers, so both directions use the rod-side area and force is identical extending and retracting; the single-rod MG pushes harder on extend but pulls less on retract. The through-rod also resists rotation and lets the rear end carry a flag or second load. The fitted S magnet accepts CMSG, DMSG or EMSG switches. Note it uses a fixed anti-impact bumper pad, not an adjustable cushion, and it will not hold a load on air loss without an external check valve or rod lock.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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