Airtac MGD Double Rod Mini Cylinder MGD40X500S
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X500S is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø40mm bore and 500mm 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
- Stroke500 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 MGD40X500S
The AirTAC MGD40X500S is a JIS round-body mini cylinder, double acting and double rod: 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 deliver an equal 527.8 N in each direction at 0.5 MPa (738.9 N at 0.7 MPa, with a theoretical maximum of 107.6 kgf at 1.0 MPa). Because both sides of the piston see the rod-side area, there is no stronger push stroke versus a weaker pull stroke, which makes end-of-stroke position repeatable and sizing straightforward. The through-rod also resists rotation and side load, and the back rod end is free to carry a stop flag, a position sensor bracket, or a second load.
This largest MGD bore runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), tolerates -20 to +70 C, and moves at 30-800 mm/s over a 500 mm stroke, the maximum standard stroke for a 40 mm MGD. The SUS304 stainless barrel with hard-chrome rods suits damp and washdown-adjacent environments, riveted covers keep the round body compact, and a fixed anti-impact bumper pad softens each stroke end. The fitted magnet (the S code) accepts CMSG, DMSG or EMSG switches, and ports are 1/8" on every MGD bore. As a rule of thumb, plan on about 32 kg as a safe vertical load at 0.5 MPa, roughly 0.6 of the push force.
Airtac MGD Double Rod Mini Cylinder MGD40X500S Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X500S |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 MGD40X500S
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 MGD40X500S Is Used
Anti-rotation transfer slide
The through-rod of the MGD40X500S resists rotation over its 500 mm travel, keeping a gripper or pallet fixture square without external guides, with equal 527.8 N force extending and retracting.
Twin-load push from one cylinder
Both rod ends carry the same M14x1.5 thread, so one cylinder can drive two pusher arms or clamps simultaneously, splitting the 527.8 N at 0.5 MPa between two symmetric workpieces.
Rear-mounted flag position sensing
With the fitted magnet and CMSG, DMSG or EMSG switches, the back rod end carries a stop or flag that trips end-of-stroke detection on long conveyer divert and indexing stations.
Is the Airtac MGD Double Rod Mini Cylinder MGD40X500S the Right Cylinder?
At 40 mm bore the MGD40X500S is the largest and strongest cylinder in the MGD double-rod range, delivering 527.8 N each way at 0.5 MPa; if you need more force, a larger bore, or an adjustable cushion, step up to the MGCD series, which adds 50 mm and 63 mm bores with variable air cushioning. If your application does not need a through-rod, the single-rod MG series gives a higher push force for the same bore. Choose the MGD when anti-rotation guidance, equal force in both directions, or a rear rod end for a switch flag or twin load matters. Mounting is FA flange or LB foot, with I and Y rod knuckles available (no SDB or CB pivot mounts on the double-rod design). The S in the model code means the magnet is fitted, so CMSG, DMSG or EMSG switches can be clamped on either barrel side. On a 500 mm stroke, keep side load on the rod low and support the work if needed, and remember the cylinder will not hold its position on air loss: for a held load, add an external rod lock or pilot check valve. Thread is PT as standard; G and NPT are order options.
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 MGD40X500S FAQ
Because the rod occupies both sides of the piston, force is equal in both directions: 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 is 1.5 MPa (215 psi), the fluid is air filtered to 40 um, temperature range is -20 to +70 C, and speed is 30-800 mm/s. Ports are 1/8" and the rod thread is M14x1.5 at both ends.
The MGD has a rod exiting both covers, so force is identical extending and retracting, the through-rod resists rotation and side load, and the rear rod end can carry a stop flag or drive a second load; a single-rod MG has a larger push force at the same bore but no through-rod. The S code means a magnet is fitted, so CMSG, DMSG or EMSG switches can be mounted. Note the fixed bumper pad only softens stroke ends: the cylinder drifts on air loss, so use an external rod lock or pilot check valve to hold a load.
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