Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350 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 MGCD40X350
The AirTAC MGCD40X350 is a double acting, double rod JIS round-body mini cylinder with a 40 mm bore and 350 mm stroke. A hard-chrome rod exits both covers with the same M14x1.5 male thread at each end, so the two rod ends move together and the output force is equal in both directions: about 527.8 N each way at 0.5 MPa (roughly 53 kgf), rising to 738.9 N at 0.7 MPa, with a theoretical maximum of 107.6 kgf at 1.0 MPa. Because both strokes use the rod-side area, the rear rod end can carry a second load, a stop flag or a position flag while the front rod does the work. A variable air cushion at both ends is adjustable to decelerate the piston smoothly, letting this 40 mm bore handle higher speeds and heavier loads than an un-cushioned mini cylinder.
Construction follows the JIS mini-cylinder footprint: a riveted SUS304 stainless barrel with a hard-chrome (20 um) carbon-steel rod, and a two-way lubricant-storing piston seal for long service life. 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 reaches speeds of 30-800 mm/s. Air ports are 1/8". For a realistic working load, size around 0.6 of the push force, which gives a safe vertical figure of about 32 kg for this model. Note that the air cushion only decelerates the stroke ends; it is not a lock, so use an external rod lock or pilot check valve if the load must be held on air loss.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350 Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350 |
|---|---|
| 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 MGCD40X350
| 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 MGCD40X350 Is Used
High-speed anti-rotation transfer
The through-rod resists rotation while the variable air cushion brakes the load smoothly at each end, letting the MGCD40X350 shuttle parts at speed in its 350 mm stroke without hard stops.
Twin-load press with soft stop
Front and rear rod ends each carry a small tool or pad, applying about 527.8 N per way at 0.5 MPa, while the adjustable cushion gives a gentle landing on both sides of the stroke.
Rear-flag slide for switching
Use the rear rod end as a position flag for a slide or gate; with the optional S magnet and CMSG/DMSG/EMSG switches the 350 mm travel can be monitored at both cushioned ends.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X350 the Right Cylinder?
Choose the MGCD40X350 when you need equal force in both directions, anti-rotation guidance from a through-rod, and adjustable cushioning at both stroke ends for high-speed or heavier-load stops. At 40 mm bore it delivers 527.8 N per way at 0.5 MPa; step up to MGCD50 or MGCD63 for more force, or down to MGCD20/25/32 for lighter duty. If you want a double-rod mini cylinder without cushioning in bores 20-40, the MGD with fixed bumpers is the alternative; for a single rod with cushion, choose the MGC. Mount with the FA flange or LB foot, and pair rods with I or Y knuckle joints (SDB and CB are not offered). Add the S code to the ordering code if you later need magnetic CMSG, DMSG or EMSG switches; this standard MGCD40X350 has no magnet, so no sensor can be mounted. The 350 mm stroke is within the 500 mm maximum standard stroke for this bore; for very long strokes, watch side-load on the extended rod and support the workpiece.
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 MGCD40X350 FAQ
This 40 mm bore double rod cylinder gives an equal 527.8 N in both directions at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical maximum of 107.6 kgf at 1.0 MPa. It runs double acting on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), withstands a proof pressure of 1.5 MPa (215 psi), works from -20 to +70 C, and covers speeds of 30-800 mm/s over its 350 mm stroke. Ports are 1/8" and the rod thread is M14x1.5 at both ends.
The MGCD40X350 has an adjustable air cushion at both ends that decelerates the piston near each stroke end, so higher speeds and heavier loads stop smoothly; it is not a brake and does not hold the load on air loss, so add an external rod lock or pilot check valve for that. Unlike the MGD, which is a double rod cylinder with fixed bumper pads, the MGCD cushions with air; unlike the single-rod MGC, its through-rod gives equal force both ways and a rear rod end for a second load or flag. Add the S code to fit CMSG, DMSG or EMSG magnetic switches.
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