Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X400
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X400 is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø50mm bore and 400mm stroke, 1/4" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ50 mm
- Stroke400 mm
- Port size1/4"
- Acting typeDouble acting, double rod + cushion
- Rod threadM18×1.5
- CushionVariable air cushion, both ends
About the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X400
The AirTAC MGCD50X400 is a double acting, double-rod JIS round-body mini cylinder with a 50 mm bore and a 400 mm stroke. A hard-chrome 20 mm rod exits both covers with the same M18x1.5 male thread at each end, so the rod-side area is pressurized in both directions and the output force is equal either way: about 824.3 N at 0.5 MPa and 1154 N at 0.7 MPa, with a theoretical maximum of 168.1 kgf at 1.0 MPa. Because the piston never sees the larger full-bore area, size this cylinder on the equal rod-side force, not on a single-rod push figure.
Both stroke ends carry a variable air cushion, adjustable with the cover screws so the 400 mm stroke can be run fast and still decelerate the piston smoothly into each end cover - useful at the upper end of the 30-800 mm/s speed range. The barrel is SUS304 stainless with riveted covers and a two-way lubricant-storing piston seal; the rod is hard-chrome carbon steel. Air supply is filtered to 40 um, operating pressure is 0.15-1.0 MPa (22-145 psi) with proof pressure of 1.5 MPa (215 psi), and the temperature range is -20 to +70 C. As a practical sizing rule, keep the working load near 0.6 of the push force, so about 50 kg is a sensible vertical load for this bore. This unit ships without the magnet option; add the S code if you want CMSG, DMSG or EMSG switch sensing.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X400 Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X400 |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 mm |
| Acting type | Double acting, double rod + cushion |
| Port size | 1/4" |
| Rod thread | M18×1.5 |
| 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 (Ø50mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa | 1155 N |
| Max (@1.0 MPa) | 168 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 MGCD50X400
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×400 | 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 MGCD50X400 Is Used
High-speed anti-rotation transfer
The 400 mm through-rod keeps the load guided without a rotary stop while the variable air cushion absorbs the arrival at both ends, letting the 50 mm bore run near the top of its 30-800 mm/s range on transfer slides carrying roughly 50 kg.
Twin-load press with soft stop
Equal 824.3 N force at 0.5 MPa in both directions lets one MGCD50X400 press or clamp from either rod end, with the adjustable cushion giving a smooth, non-slamming stop on light forming or staking work.
Rear-switch slide
The second rod end carries a cam flag for position flags or a counterweight on long reciprocating slides; specify the S code so CMSG, DMSG or EMSG switches can report both 400 mm stroke ends.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD50X400 the Right Cylinder?
Choose the MGCD50X400 when a 400 mm stroke needs equal force in both directions, anti-rotation guidance, and smooth adjustable stops at speed - the through-rod also gives you a rear rod end for a flag, stop or second load. If 824.3 N at 0.5 MPa is marginal, step up to bore 63 (1400.9 N); if it is generous, bore 40 (527.8 N) saves space. For a double-rod cylinder with fixed bumper pads instead of an air cushion at bores 20-40, look at the MGD; for a single rod with cushion, the MGC is the equivalent. Mount with the FA flange or LB foot and add I or Y rod knuckles; CB and SDB are not offered. The magnet is the optional S code - without it no CMSG/DMSG/EMSG switch can be fitted. At 400 mm of exposed rod, support the load carefully and avoid side loading; the maximum standard stroke for this bore is 500 mm.
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 MGCD50X400 FAQ
Because the double rod exposes the rod-side area in both directions, output is equal either way: 824.3 N at 0.5 MPa and 1154 N at 0.7 MPa, with a theoretical maximum of 168.1 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, the temperature range is -20 to +70 C, and speed is 30-800 mm/s on the 400 mm stroke.
The cushion at both ends is an adjustable air chamber: turning the needle screw meters the deceleration so the piston stops smoothly at each end of the stroke. It only slows the piston near the end covers - it is not a lock, so the load is not held on air loss; add an external rod lock or pilot check valve for holding. Unlike the MGD, which uses fixed bumper pads, this is a true adjustable air cushion; unlike the single-rod MGC, the MGCD has a rod at both ends with M18x1.5 threads, giving equal force both ways and anti-rotation. The optional S code adds a magnet for CMSG, DMSG or EMSG switches.
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