Airtac MGC Stainless Steel Mini Cylinder MGC40X75
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC40X75 is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 MGC40X75
With a 40 mm bore and 75 mm stroke, the MGC40X75 is a JIS-standard round-body mini cylinder, double acting, and the key difference from the plain MG is the variable air cushion fitted at both stroke ends. Turn the cushion needle and you set how hard the piston decelerates near end of travel, so faster cycles and heavier moving loads arrive without hammering the covers. At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa those figures rise to 879.6 N and 738.9 N, with a theoretical maximum of 128.1 kgf at 1.0 MPa.
The barrel is SUS304 stainless steel with covers and block riveted and rolled on, and the 16 mm rod is hard-chrome plated to 20 um; the two-way piston seal also stores lubricant. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), survives 1.5 MPa (215 psi) proof pressure, works from -20 to +70 C, and cycles at 30-800 mm/s. Ports are 1/8" with PT thread, mounting is FA flange or LB foot plus I and Y rod knuckles, and this version carries no magnet, so position sensing with a CMSG, DMSG or EMSG switch requires the -S option. Note that the cushion only decelerates the stroke end; 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 MGC Stainless Steel Mini Cylinder MGC40X75 Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC40X75 |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MGC40X75
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MGC40X75 Is Used
Conveyor stop and divert
The 628.3 N push at 0.5 MPa stops cartons or totes on the line, and the variable air cushion absorbs the moving load at end of stroke so fast conveyor cycles do not slam the covers.
Small press and forming stations
With 879.6 N available at 0.7 MPa, the MGC40X75 suits light staking, marking and insert presses where the adjustable cushion softens the return stroke on short 75 mm travel.
Packaging clamp and push
Clamping cartons or pushing product into cases at up to 800 mm/s benefits from the tunable end-of-stroke deceleration, while the SUS304 barrel stands up to washdown-prone packaging areas.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC40X75 the Right Cylinder?
At 40 mm bore this sits in the middle of the MGC range: 628.3 N push at 0.5 MPa, roughly 64 kgf, so size actuators and tooling around a safe working load of about 38 kg (0.6 of the push force) and about 32 kg for vertical lifting. Step down to the 32 mm bore for 402.2 N or up to the 50 mm bore for 981.3 N if the load grows; for bores 20-40 the bumper-type MG is the no-cushion alternative if end-of-stroke damping is not needed. The variable air cushion earns its keep on higher-speed or heavier moving loads, letting you tune deceleration at both ends instead of absorbing impact with a fixed pad. Choose FA flange or LB foot mounting, add I or Y rod knuckles if the tooling pivots, and order the -S magnet version if you need CMSG/DMSG/EMSG switch feedback. The 75 mm stroke is well inside the 500 mm standard limit, but on any long stroke keep side load on the 16 mm rod minimal or guide the load externally.
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 MGC40X75 FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa push is 879.6 N and pull 738.9 N. The theoretical maximum 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 about 32 kg for vertical lifts.
The cushion is an adjustable air dam at both stroke ends: turn the needle to set how the piston decelerates, which protects the covers at higher speeds and with heavier moving loads. It is not a brake or position lock, so use an external rod lock or pilot check valve for held loads. This SKU has no magnet, so CMSG, DMSG or EMSG switches require ordering the -S magnet version.
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