Airtac MGC Stainless Steel Mini Cylinder MGC40X225
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC40X225 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 MGC40X225
The AirTAC MGC40X225 is a double acting, JIS-standard round-body mini cylinder with a 40 mm bore and 225 mm stroke, fitted with a variable air cushion at both ends. Unlike the bumper-style MG, this cushion is adjustable: turn the needle valve at each cover to dial in the deceleration the piston needs as it approaches end of stroke, so the cylinder can run at higher speeds and move heavier loads without hammering the covers. At 0.5 MPa it delivers 628.3 N of push force and 527.8 N of pull, rising to 879.6 N push at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled into place, plus a hard-chrome plated (20 um) carbon-steel 16 mm rod with an M14x1.5 male thread. The two-way piston seal also stores lubricant, extending service intervals. It operates on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, and speed range is 30-800 mm/s. Ports are 1/8". Mounting is via FA flange or LB foot, with I and Y rod knuckles available. Note that the cushion only decelerates end of stroke; it is not a lock, so an external rod lock or pilot check valve is recommended for a held load. This model has no magnet, so no position sensor can be fitted; choose the -S option for CMSG / DMSG / EMSG sensing.
Airtac MGC Stainless Steel Mini Cylinder MGC40X225 Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC40X225 |
|---|---|
| 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 MGC40X225
| 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 MGC40X225 Is Used
High-speed push-off on assembly stations
The adjustable air cushion lets the 40 mm bore run fast through its 225 mm stroke and still decelerate smoothly at end of travel, protecting the covers at speeds up to 800 mm/s.
Conveyor divert and stopper actuation
With 628.3 N push at 0.5 MPa, the MGC40X225 has ample force for diverters and stoppers, while the variable cushion absorbs the momentum of the moving product without hard impact.
Packaging clamp and press-fit operations
Around 38 kgf of safe working force (0.6 of push) suits clamping, forming and light press-fit tasks in packaging machinery, with the SUS304 barrel resisting washdown environments.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC40X225 the Right Cylinder?
At 40 mm bore the MGC40X225 sits in the middle of the cushioned MGC range: it pushes 628.3 N (about 64 kgf) at 0.5 MPa, roughly 2.5 times the force of the 20 mm bore (157.0 N) and about 1.6 times the 25 mm bore (245.3 N), while the 50 mm bore steps up to 981.3 N and the 63 mm bore to 1557.9 N. A practical rule of thumb: keep the working load near 0.6 of push force, so around 38 kgf here, or about 32 kg for safe vertical lifting. If you do not need end-of-stroke deceleration, the bumper-type MG is the no-cushion alternative in this bore, but for higher speeds or heavier moving loads the MGC's adjustable air cushion is the better choice. The 225 mm stroke is within the 500 mm standard range for this bore; strokes beyond 500 mm (up to 800 mm) are made to order. Specify FA flange or LB foot mounting, PT thread (G or NPT on request), and add the S code if you need CMSG / DMSG / EMSG magnetic sensing. On long strokes, guide side loads externally so the 16 mm rod is not loaded laterally.
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 MGC40X225 FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa, 879.6 N push and 738.9 N pull. The theoretical maximum is 128.1 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure.
The cushion is adjustable at both ends: a needle valve meters the exhaust air near end of stroke so the piston decelerates smoothly, which is ideal at higher speeds or with heavier moving loads. It is not a brake or lock, though - on air loss the rod will move, so use an external rod lock or pilot check valve for a held load.
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