Airtac MGD Double Rod Mini Cylinder MGD40X75S
The AirTAC Airtac MGD Double Rod Mini Cylinder MGD40X75S is a genuine double acting, double rod JIS-standard round-body mini air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 MGD40X75S
The AirTAC MGD40X75S is a JIS-standard 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. Because the rod-side area is active on both sides of the piston, the output force is equal in both directions - about 527.8 N (roughly 53.8 kgf) each way 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. For a realistic working load, size around 0.6 of the available force, which puts a safe vertical figure near 32 kg for this cylinder.
Construction suits damp and washdown-adjacent lines: a SUS304 stainless barrel, riveted covers and hard-chrome carbon-steel rods, with a fixed anti-impact bumper pad at each stroke end to soften deceleration - this is a bumper, not an adjustable air cushion. The fitted magnet (the S in the code) accepts CMSG, DMSG or EMSG switches for end-of-stroke signalling. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, -20 to +70 C, and speeds of 30-800 mm/s. Every bore in the MGD family uses a 1/8" port.
Airtac MGD Double Rod Mini Cylinder MGD40X75S Technical Specifications
| Model | Airtac MGD Double Rod Mini Cylinder MGD40X75S |
|---|---|
| Series | MGD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MGD40X75S
| MGD | JIS round-body mini cylinder (double-rod). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MGD40X75S Is Used
Anti-rotation slide
The through-rod on the MGD40X75S resists rotation and side load, keeping a 75 mm slide square without external guides - useful for pick-and-place transfer heads needing about 30 kg of working capacity.
Twin-load push
With 527.8 N available each way at 0.5 MPa, the front rod can push a part into a nest while the rear rod end drives a second fixture or ejector on the same stroke.
Rear-mounted stop flag
The fitted magnet and rear rod end let a stop or switch flag ride the back rod, giving a repeatable stroke-end signal via CMSG/DMSG/EMSG sensors while the bumper pad softens each end.
Is the Airtac MGD Double Rod Mini Cylinder MGD40X75S the Right Cylinder?
At 40 mm bore the MGD40X75S is the largest cylinder in the MGD double-rod range, delivering 527.8 N each way at 0.5 MPa - step up only if you need more than about 107.6 kgf theoretical at 1.0 MPa, in which case the double-rod MGCD adds 50 mm and 63 mm bores. Choose the MGD over the single-rod MG when you need anti-rotation guidance, equal force in both directions, a rear rod end for a switch flag or a second load, or symmetric transfer motion. If your application needs adjustable end-of-stroke cushioning rather than the fixed bumper pad, the MGCD is the cushioned double-rod equivalent. Mounting is FA flange or LB foot (no SDB/CB pivot mounts on the double-rod), with I and Y rod knuckles available; the fitted magnet works with CMSG/DMSG/EMSG switches. The 75 mm stroke is well inside the 500 mm maximum standard stroke for this bore, but on long-stroke versions keep side load on the rod low and support the workpiece independently.
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 MGD40X75S FAQ
Because both sides of the piston see the rod-side area, 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 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-800 mm/s, fluid air filtered to 40 um, and the port is 1/8" on every MGD bore including this 40 mm model.
The MGD40X75S has a rod exiting both covers with the same M14x1.5 thread at each end, so force is identical extending and retracting and the through-rod resists rotation - the single-rod MG has a larger extend force but unequal retract force and no rear rod. The S in the code means a magnet is fitted, so CMSG, DMSG or EMSG switches can be mounted for position sensing. Note the fixed bumper pad only softens stroke ends; the cylinder does not hold its load on air loss, so use an external rod lock or pilot check valve for a held load.
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