Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350S
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350S is a genuine double acting, double rod + cushion 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 + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350S
The MGCD40X350S is a double acting, double-rod JIS mini cylinder with a 40 mm bore and a 350 mm stroke. A 16 mm rod exits both covers with the same M14x1.5 male thread at each end, so the rod-side area is effective in both directions and the output force is equal either way: about 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. Both ends carry a variable air cushion, so the piston decelerates smoothly at each end of the 350 mm travel instead of slamming into the covers, which suits higher speeds and heavier moving loads. The fitted magnet (S code) allows CMSG, DMSG or EMSG switches to be mounted for end-of-stroke signalling.
Construction follows the JIS round-body mini format: a SUS304 stainless barrel with riveted covers and a hard-chrome plated carbon-steel rod for wear resistance. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), tolerates a proof pressure of 1.5 MPa (215 psi), operates from -20 to +70 C, and covers speeds of 30-800 mm/s. As a buyer insight, the 527.8 N push at 0.5 MPa supports a realistic working load of roughly 316 N, and for a vertical lift that is about 26 kg after the usual safety halving. Note that the cushion only decelerates the stroke ends; it is not a lock, so use an external rod lock or pilot check valve where the load must be held on air loss.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350S Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 mm |
| Acting type | Double acting, double rod + cushion |
| 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 | Variable air cushion, both ends |
| 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 MGCD Stainless Steel Mini Air Cylinder MGCD40X350S
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 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 MGCD Stainless Steel Mini Air Cylinder MGCD40X350S Is Used
High-speed anti-rotation transfer
The through-rod resists rotation while the variable air cushion at both ends lets the 527.8 N push cycle at speed without hard stops over the 350 mm stroke.
Twin-load press with soft stop
Rod ends on both covers carry a fixture or second load, and the adjustable cushion gives a smooth deceleration into light pressing work at this force class.
Rear-switch slide
The rear rod end drives a position flag while the fitted magnet feeds CMSG or DMSG switches, with cushioned ends protecting the slide at each reversal.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350S the Right Cylinder?
Size the MGCD by the equal both-way force you need: at 40 mm bore you get 527.8 N each way at 0.5 MPa, between the 32 mm (345.6 N) and 50 mm (824.3 N) models. Choose the MGCD when you need a through-rod with a variable air cushion at both ends; if you want a double-rod cylinder with a fixed bumper instead, look at the MGD (bores 20-40), and for a single rod with cushion the MGC is the equivalent. The rear rod end is handy for a stop flag, position marker or a second load, and the through-rod gives natural anti-rotation for guided transfer work. Mounting options are LB foot or FA flange, with I and Y rod knuckles available (no CB or SDB on this family). The fitted magnet means CMSG, DMSG or EMSG switches can be added directly. The 350 mm stroke is within the 500 mm maximum standard stroke for this bore, and on long strokes keep side loading on the rod low and consider external guiding to protect the bearings.
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 and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350S FAQ
Because it is a double-rod cylinder, the 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), speed range is 30-800 mm/s, temperature is -20 to +70 C, and the fluid is air filtered to 40 um.
The cushion at both ends is adjustable air buffering: it decelerates the piston smoothly near each stroke end for higher speeds or heavier loads. It is not a brake, so the cylinder will not hold its load on air loss; add an external rod lock or pilot check valve for that. Unlike the MGD, which uses fixed bumper pads, the MGCD has this adjustable air cushion, and unlike the single-rod MGC it has a rod at both ends, giving equal force both ways and a rear rod end for flags or a second load. The fitted magnet also accepts CMSG, DMSG or EMSG switches.
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