Airtac MGC Stainless Steel Mini Cylinder MGC40X225S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC40X225S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 225mm 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
- Stroke225 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MGC Stainless Steel Mini Cylinder MGC40X225S
The AirTAC MGC40X225S is a JIS-standard round-body mini cylinder, double acting, with a variable air cushion at both stroke ends. Instead of a fixed bumper pad, the cushion needle can be adjusted to decelerate the piston smoothly near end of travel, so this 40 mm bore cylinder tolerates higher piston speeds and heavier moving loads than the bumper-type MG without hammering the covers. At 0.5 MPa it delivers 628.3 N push and 527.8 N pull, and 879.6 N push at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa.
The barrel is SUS304 stainless steel with a hard-chrome plated 20 um carbon-steel rod; the front and back covers and stainless block are riveted and rolled onto the barrel, and the two-way piston seal also stores lubricant. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed range 30-800 mm/s, and temperature -20 to +70 C on air filtered to 40 um. The fitted magnet (the S in the code) accepts CMSG, DMSG or EMSG switches, and mounting is by FA flange or LB foot with I and Y rod knuckles. A computed buyer insight: the 628.3 N push at 0.5 MPa equals about 64 kgf, so a safe working load is roughly 38 kg, or about 19 kg for vertical lifting.
Airtac MGC Stainless Steel Mini Cylinder MGC40X225S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC40X225S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting + 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MGC Stainless Steel Mini Cylinder MGC40X225S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 MGC Stainless Steel Mini Cylinder MGC40X225S Is Used
Conveyor stop and divert
The variable air cushion absorbs the momentum of fast-moving cartons at stroke end, letting this 40 mm bore cylinder (628.3 N push at 0.5 MPa) index or divert loads at speed without cover hammering.
Press and clamp fixture
With 879.6 N push at 0.7 MPa and adjustable end-of-stroke deceleration, the MGC40X225S suits light clamping and press-fit stations where the moving mass would otherwise slam the covers.
Palletizer push-off
The 225 mm stroke and cushioned ends make this cylinder a good fit for pushing layers or cases off a palletizing table, with the fitted magnet and CMSG/DMSG/EMSG switches confirming end positions.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC40X225S the Right Cylinder?
Size the MGC40X225S by its real 0.5 MPa push force of 628.3 N (about 64 kgf); halve that for vertical lifts to stay near 32 kgf. If you need more force, step up to the MGC50 (981.3 N push at 0.5 MPa) or MGC63 (1557.9 N), which are offered only in the cushioned MGC/MGCD family; the smaller MGC32 gives 402.2 N. For bores 20-40 where no cushion is needed, the plain bumper-type MG is the lower-cost alternative. The 225 mm stroke sits well inside the 500 mm maximum standard stroke for this bore. The variable air cushion at both ends is the key benefit when running toward the upper end of the 30-800 mm/s speed range or moving heavier loads. Mount with the FA flange or LB foot, add I or Y rod knuckles where the tooling needs them, and remember the -S magnet is already fitted for CMSG/DMSG/EMSG sensing. With a 225 mm stroke, keep rod side loading low or guide the load externally to protect the 16 mm hard-chrome rod.
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 MGC Stainless Steel Mini Cylinder MGC40X225S FAQ
At 0.5 MPa the 40 mm bore gives 628.3 N push and 527.8 N pull; at 0.7 MPa it gives 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa. For sizing, treat about 0.6 of the 0.5 MPa push force (roughly 38 kg) as a safe working load, or halve it for vertical lifting.
The cushion is an adjustable air cushion at both stroke ends: turn the cushion needle to meter the exhaust and decelerate the piston smoothly near end of travel, which is ideal at higher speeds or with heavier moving loads. It only decelerates the stroke end; it is not a lock, hold or brake, and the MGC40X225S will not hold position on air loss. For a held load, add an external rod lock or pilot check valve.
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